bluuebunny/crossref_metadata_2025 huggingface dataset:
Pozzolanic Properties of White Cowpea Husk Ash
Authors: Wilson Uwemedimo Nyong , Z Gambo , I S Mohammed , O C Eze , S O Odeyemi
Published: February 2022

This research attempts to empirically investigate the pozzolanic properties of White Cowpea Husk Ash (WCHA), an agricultural biomass waste, at different percentages of its use as partial replacement of cement in concrete. WCHA was obtained after the calcination of white cowpea husk for 3 hours at 5500C. X-ray Florescence (XRF) analysis performed revealed that the sample of WCHA is a Class C pozzolana, which contains 65.4% of the combination of SiO2, Al2O3, and Fe2O3. The WCHA shows increase in consistency with increase in the WCHA content. This was attributed to the high Loss of Ignition (LOI) of WCHA compared to that of the cement. In addition, the results indicated that the initial and final setting time of WCHA – Cement blended concrete increase with increase in the WCHA content. The delay in setting times of WCPA-Cement paste could be attributable to the slower pozzolanic reaction. The density of the concrete decreased as the WCHA content increases. Generally the compressive strength of the WCHA concrete increased with increase in curing age and decreases as the WCHA content increased from a strength of 28.6 to 20.0 N/mm2 giving a percentage reduction of 30.1 %. The strength reduction is also attributed to the modification of the bonding properties of the binders’ hydrates.  However, the 28 days compressive strength of concrete with up to 10 % WCHA content (26.4 N/mm2) satisfied the design characteristic strength of 25 N/mm2. Beyond this limit, the compressive strength of the concrete fell below the design strength. Hence, 10 % WCHA could be regarded as the optimum dose for grade 25 concrete.
Noninvasive Ultrasound Retinal Stimulation for Vision Restoration at High Spatiotemporal Resolution
Authors: Qian Xuejun , Lu Gengxi , Thomas Biju B. , Li Runze , Chen Xiaoyang , Shung K. Kirk , Humayun Mark , Zhou Qifa
Published: February 2022

Objective
. Retinal degeneration involving progressive deterioration and loss of function of photoreceptors is a major cause of permanent vision loss worldwide. Strategies to treat these incurable conditions incorporate retinal prostheses via electrically stimulating surviving retinal neurons with implanted devices in the eye, optogenetic therapy, and sonogenetic therapy. Existing challenges of these strategies include invasive manner, complex implantation surgeries, and risky gene therapy.
Methods and Results
. Here, we show that direct ultrasound stimulation on the retina can evoke neuron activities from the visual centers including the superior colliculus and the primary visual cortex (V1), in either normal-sighted or retinal degenerated blind rats
in vivo
. The neuron activities induced by the customized spherically focused 3.1 MHz ultrasound transducer have shown both good spatial resolution of 250 
μ
m and temporal resolution of 5 Hz in the rat visual centers. An additional customized 4.4 MHz helical transducer was further implemented to generate a static stimulation pattern of letter forms.
Conclusion
. Our findings demonstrate that ultrasound stimulation of the retina
in vivo
is a safe and effective approach with high spatiotemporal resolution, indicating a promising future of ultrasound stimulation as a novel and noninvasive visual prosthesis for translational applications in blind patients.
Factors Associated with Sarcopenia among Hemodialysis Patients
Authors: Shin Hye Yun , Min Hye Sook
Published: February 2022

Purpose : This descriptive survey aims to identify the prevalence of factors associated with sarcopenia among hemodialysis patients.Methods : The study subjects were 137 patients with chronic kidney failure undergoing hemodialysis in three artificial kidney centers in B and Y cities. Data were collected from August 1 to September 30, 2020, using the SARC-F (Strength, Assistant walking, Rising from a chair, Climbing stairs, Falls) questionnaire, Mini Nutritional Assessment-Short Form (MNA-SF), International Physical Activity Questionnaire (IPAQ-SF), Bioelectrical Impedance Analysis (BIA), and a grip dynamometer. The collected data were analyzed using t-tests, crossover analysis, and logistic regression using the IBM SPSS 23 program.Results : The prevalence of sarcopenia among hemodialysis patients, determined using the SARC-F questionnaire, was 16.1%. The associated factors of sarcopenia among hemodialysis patients were found to be gender (OR=6.44, p =.002), age (OR=1.07, p =.015), nutritional status (OR=10.37, p =.027), and albumin level (OR=0.10, p =.014). These findings are supported by an explanatory power of 46.3% (p =.597).Conclusion : The identified risk factors for sarcopenia in hemodialysis patients were; sex, age, nutritional status, and albumin level. The findings of this study can serve as clinical evidence for the development of an intervention program for preventing and managing sarcopenia in patients undergoing hemodialysis.
The Effect on COVID-19 Infection Control Practice of Nurses who Work in Working Sites with Negative Pressure Isolation Rooms
Authors: Park Min Ji , Lee Yun Mi
Published: February 2022

Purpose : This study aimed to identify the factors affecting coronavirus disease 2019 (COVID-19) infection control practices of nurses in negative pressure isolation rooms.Methods : The participants were 150 nurses working in three hospitals with negative pressure isolation rooms. Data were collected using structured questionnaires and analyzed using an independent t-test, one-way ANOVA, Scheffé test, Pearson correlation coefficients, and multiple regression analysis using the SPSS/WIN 26.0 program.Results : Factors significantly influencing the subject's COVID-19 infection control practice include Being married (β=.18, p =.016), working in a ward with negative pressure isolation rooms (β=.44, p <.001), working in an ICU with negative pressure isolation rooms (β=.27, p =.010), COVID-19 infection control attitude (β=.28, p =.001), anxiety for COVID-19 (β=.30, p <.001). The explanatory power of these variables for COVID-19 infection control practice was 24.6% (F=8.67, p <.001).Conclusion : It is expected that strategies that utilize positive attitudes which believe that COVID-19 disease may be overcome by COVID-19 infection control practice will help improve emerging infectious diseases infection control practice.
The Effects of Communication Ability, Job Satisfaction, and Organizational Commitment on Nursing Performance of Intensive Care Unit Nurses
Authors: Kim Nu Ri , Kim Sung Eun , Jang So Eun
Published: February 2022

Purpose : This study aimed to provide basic data for developing strategies to improve the nursing performance of nurses working in the intensive care unit by identifying the degree of their communication ability, job satisfaction, organization commitment, and nursing performance, and the relation between each of these variables in the intensive care unit by examining the factors affecting nursing performance.Methods : The participants comprised of 150 nurses working in the intensive care unit in two advanced general hospitals. Data were collected using structured questionnaires and analyzed using a t-test, ANOVA, the Scheffé test, Pearson’s correlation coefficients, and multiple regression analysis using the SPSS/WIN 25.0 program.Results : Nursing performance of the participants was positively correlated with communication ability (r=.64, p<.001), job satisfaction (r=.26, p<.001), and organization commitment (r=.29, p<.001). Factors significantly influencing the participants’ nursing performance included academic background (β=.16, p=.032) and communication ability (β=.50, p<.001). The explanatory power of these variables for nursing performance was recorded at 49.9% (F=19.04, p<.001).Conclusion : The use of various programs in the hospital and the development of effective communication ability with medical staff and other departments among nurses will help improve nursing performance, cooperation with other departments, and patient care.
STUDI KOMPARASI STANDAR PEMBEBANAN PADA JEMBATAN KOMPOSIT DIREKTORAT BINA MARGA BENTANG JEMBATAN 20 METER SESUAI DENGAN SNI PEMBEBANAN 2016
Authors: Mu’amar Aldi , Pribadi R Juli Ardita
Published: February 2022

Pemerintah Indonesia mengeluarkan Standarisasi untuk perhitungaan struktur jembatan yakni Standar dan Pedoman Jembatan Direktorat Jendral Bina Marga. Seiring berjalannya waktu peraturan-peraturan untuk perhitungan mengalami perubahan. Akan tetapi, aturan perhitungan di Standarisasi Bina Marga tidak diperbarui. Oleh karena itu dibutuhkan perhitungan struktur jembatan yang sesuai dengan peraturan-peraturan terbaru. Perencanaan yang dilakukan adalah  perencanaan jembatan struktur atas jembatan komposit terhadap perhitungan yang sudah ada dengan menggunakan SNI pembebanan 2016 pada jembatan dengan bentang 20 meter. Struktur atas   yang direncanakan meliputi   slab,  girder, diafragma, trotoar, tiang sandaran, stud connector dan sambungan. Perencanaan dilakukan dengan metode LFRD dan tanpa perancah. Berdasarkan hasil perencanaan diperoleh tebal slab 200 mm dengan tulangan utama pada tumpuan dan lapangan menggunakan besi D 32, sedangkan tulangan bagi pada tumpuan dan lapangan menggunakan besi D 29. Girder menggunakan profil IWF 900.300.16.28 yang direncanakan dengan jarak 1,2 m. Diafragma menggunakan profil IWF 500.200.10.16. Trotoar dengan lebar  1 m dan tebal 0,25 m menggunakan tulangan utama D 16 dan tulangan bagi D 10.
Sistem Rekayasa Internet Pada Implementasi Rumah Pintar Berbasis IoT
Authors: Hildayanti Andi , Sya’rani Machrizzandi M
Published: February 2022

Seiring perkembangan teknologi yang semakin meningkat dan pesat, segala sesuatu dibuat lebih mudah dengan bantuan rekayasa teknologi. Salah satunya telah dikembangkan dalam skala unit rumah yang mulai dikenal dengan istilah rumah pintar. Rumah ini didukung oleh rekayasa teknologi berbasis internet yang memudahkan penghuni menjalankan aktivitas didalam maupun diluar rumah. Kemudahan yang ditawarkan menjadi daya tarik sendiri bagi banyak kalangan masyarakat. Teknologi ini sedikitnya sudah menjawab beberapa impian rumah masa depan bagi sebagian masyarakat, tidak terkecuali di Indonesia. Oleh karena itu, penelitian ini bertujuan untuk menganalisis penggunaan system rekayasa teknologi internet dalam mewujudkan rumah pintar (smart home). Dengan menggunakan metode deskriptif, penelitian ini mampu menunjukkan bahwa rumah pintar dengan teknologi Internet of Things (IoT) menyediakan kenyamanan, keamanan, efisiensi energi bagi rumah setiap saat karena dapat dikontrol dari jarak jauh sehingga memudahkan penghuni untuk mengontrol keamanan rumah meski tanpa bantuan petugas keamanan. Salah satu rekayasa teknologi dapat mewujudkan rumah pintar tersebut adalah teknologi internet of things (IoT). Internet yang dapat digunakan di semua perangkat membuat penggunanya bisa berinteraksi langsung dengan beberapa perangkat rumah tangga yang ada dirumah.
ANALISA KEBUTUHAN SISTEM APLIKASI BURSA KERJA KHUSUS DI SMK NEGERI 2 KARAWANG
Authors: Setiyani Lila
Published: February 2022

Bursa Kerja Khusus (BKK) adalah sebuah lembaga yang di dirikan disekolah untuk membantu para siswa-siswa untuk mencari pekerjaan dengan bantuan pihak sekolah. Lembaga ini di dirikan secara resmi dan sudah mendapatkan izin dari Dinas Tenaga Kerja dan Transmigrasi. BKK berperan sebagai lembaga memberi informasi lowongan kerja dan penyalur tenaga kerja. BKK SMK Negeri 2 Karawang juga terbuka untuk kalangan umum tak hanya untuk siswa-siswa SMK Negeri 2 Karawang saja. Pengelolaan sistem informasi dan data yang digunakan di BKK SMKN 2 Karawang saat ini masih menggunakan cara manual, sehingga dalam pembuatan laporan perkembangan data pelamar serta data perusahaan menjadi kurang efektif dan efisien. Penelitian ini bertujuan untuk menganalisa kebutuhan sistem informasi dalam, termasuk identifikasi masalah dengan menggunakan metode analisa PIECES, analisa sebab akibat serta akar masalah dengan solusinya menggunakan analisa Fishbone. Dalam menganalisa kebutuhan sistem akan digambarkan dengan alur kerja sistem diagram usecase. Hasil dari observasi serta wawancara yang dilaakukan ini, ditemukan beberapa masalah dan beberapa faktor penyebab yang mengakibatkan manajeme sulit dalam pembuatan laporan. Dari masalah-masalah yang telah diidentifikasi akar masalahnya, berdasarkan proses input dan output serta solusinya yang menjadi landasan dalam menghasilkan informasi kebutuhan-kebutuhan fungsional yang diperlukan dalam membangun sistem informasi dalam Aplikasi BKK membutuhkan sistem informasi manajemen untuk menyelesaikan permasalahan pelaporan, pencarian dan perkembangan data pelamar serta data perusahaan.
Monitoring Kehadiran Dan Perilaku Peserta Didik Dengan Sistem Integrasi Presensi Dan Buku Penghubung Berbasis Android
Authors: Basri  , Asnari  , Tamin Rosmawati , Syarli  , Nurahmad
Published: February 2022

Penelitian ini bertujuan membangun sistem monitoring dengan penggabungan fungsi presensi dan buku penghubung berbasis Aplikasi Android. Penelitian ini dilakukan menggunakan sampel data di SDN 066 Pekkabata, Kabupaten Polewali Mandar, Sulwaesi Barat. Aplikasi ini di bangun dengan menggunakan model Client-Server dimana servernya berbasis website dan Clientya berbasis Aplikasi Android. Web server yang dibangun digunakan sebagai tempat pengolahan data seperti data peserta didik, guru, presensi dan buku penghubung. Data yang tersimpan dalam database server selanjutnya dapat di akses oleh aplikasi client yang berbasis sistem operasi Android. Selain itu, client juga dapat melakukan penginputan data presensi. Data yang diinput kemudian tersimpan dalam database server dengan menggunakan Web service JSON (JavaScript Object Notation). Implementasi sistem pada lokasi penelitian menunjukkan bahwa penerapan sistem dapat lebih memudahkan orang tua dalam memantau kehadiran dan perilaku anaknya di sekolah, selain itu bagi guru dan wali kelas, pengembangan sistem ini memudahkan dalam pengelolaan presensi dan buku penghubung, serta sistem yang dikembangkan dapat memfasilitasi kepala sekolah memonitor kehadiran peserta didik dan perilakunya sehingga dapat menjadi bahan evaluasi pendidikan.
Sistem Cerdas Monitoring Kehadiran Guru Dan Siswa Dengan Aplikasi Telegram Berbasis Web Responsive Pada Smp Negeri 16 Bulukumba
Authors: Butsiarah  , Markani
Published: February 2022

Informasi kehadiran guru dan siswa sangat diperlukan untuk pengolahan data dan pelaporan kehadiran kepada pihak yang membutuhkan. Namun. Misalnya ketika orang tua siswa membutuhkan informasi kehadiran anaknya disekolah dalam mengikuti mata pelajaran. Begitupun dengan kepala sekolah untuk mendapatkan informasi kehadiran guru mata pelajaran. Berdasarkan masalah tersebut dirancang sistem cerdas monitoring kehadiran guru dan siswa secara real time melalui aplikasi telegram kepada pihak-pihak yang membutuhkan informasi tersebut. Sistem cerdas ini bekerja secara real time dalam memberikan informasi kehadiran guru dan siswa. Orang tua siswa mendapatakn informasi kehadiran anaknya secara real time pada setiap mata pelajaran melalui aplikasi telegram tanpa harus dating ke sekolah demi mendapatkan informasi tersebut. Begitupun dengan kepala sekolah dapat memonitoring kehadiran guru mata pelajaran secara real time melalui aplikasi telegram, selain itu kepala sekolah juga dapat memilhat laporan kehadiran guru pada sistem cerdas tersebut tanpa meminta informasi lagi ke staft tata usaha. selain itu guru bimbingan konseling (BK) dan wali kelas juga dapat memonitoring kehadiran siswa. System cerdasar ini dibuat dengan menggunakan model pengembangan sistem yaitu Rapid Aplication Depelopment (RAD) dengan menggunakan tools perancangan system Unified Modelling Language (UML) yang terdiri atas Use Case Diagram, Class Diagram, Activity Diagram dam Sequence Diagram. Dalam pembuatan sistem ini menggunakan bahasa pemrograman html dan php dengan database mysql. Berdasarkan hasil pengujian sistem yang telah dilakukan kepada responden, maka sistem cerdas monitoring kehadiran guru dan siswa dengan aplikasi telegram berbasis web responsive pada SMP Negeri 16 Bulukumba dinyatakan layak dengan persentase kelayakan sebesar 93%.
Preferensi Learning Management System Di Masa Pandemi Covid
Authors: Hildayanti Andi , Sya’rani  Machrizzandi Muhammad
Published: February 2022

Penelitian ini bertujuan untuk mengkomparasikan Learning Management System yang digunakan selama masa pandemi Corona Virus Disease atau lebih dikenal dengan istilah CoViD-19 di lingkup perguruan tinggi. Hasil komparasi tersebut akan menunjukkan keunggulan dan kelemahan Learning Management System yang ada sehingga memudahkan dosen untuk memilih aplikasi Learning Management System yang dianggap sesuai dengan kebutuhan perkuliahan. Selain itu, hasil komparasi ini juga menjadi dasar perumusan skala prioritas aplikasi Learning Management System di lingkup perguruan tinggi, tidak terkecuali di Universitas Islam Negeri Alauddin Makassar. Informasi Learning Management System yang digunakan tersebut dikumpulkan melalui pembagian kuesioner online agar memudahkan dalam proses analisis statistik. Dari hasil analisis tersebut diketahui bahwa aplikasi Learning Management System yang dominan digunakan adalah Google Classroom karena banyaknya aplikasi penunjang yang dengan mudah disinkronkan dalam satu akun pengguna, serta beban kuota internet yang lebih murah menjadi alasan kuat pemilihan media pembelajaran daring dari aplikasi google ini
Komparasi Algoritma K-Means, K-Medoid, Agglomeartive Clustering Terhadap Genre Spotify
Authors: Rohmah Zaidah Ana , Indira Septiarani Chandra , Sholikhatun Nisa Mar’atus , Yusuf Ahmad , Wahyudi Noor
Published: February 2022

Perkembangan teknologi di berbagai bidang kehidupan manusia berdampak pada kebutuhan manusia yang semakin kompleks seperti contohnya muncul layanan streaming musik yang bisa didengarkan dengan mudah dari berbagai platform. Platform streaming musik yang banyak digunakan saat ini salah satunya spotify.com, menurut berita yang dirilis kompas.com spotify yang mengalami kenaikan 130 juta pelanggan baru sejak pandemi, sebagai platform yang memiliki pengguna yang banyak perlu penelitian lebih lanjut tentang konten streaming musik  untuk menawarkan user experience yang lebih baik dan upaya meningkatkan persaingan dengan platform streaming lain. Penelitian ini menggunakan data publik Global Top 50 yang dianalisis menggunakan algoritma k-means, k-medoid, agglomative clustering Berdasarkan hasil penelitian metode cluster terbaik yang digunakan untuk clustering lagu spotify adalah agglomerative hierarchical clustering metode Average Linked dengan 3 atau 4 klaster. Klaster paling direkomendasikan adalah sebesar 3 klaster karena klaster ke 4 hanya berisi 1 anggota saja. Pada pengelompokkan 3 klaster, klaster ke-1 berisi 2833 anggota, klaster ke-2 berisi 145 anggota, dan klaster ke-3 berisi 21 anggota.
DECISION TREE DALAM MENGKLASIFIKASI MATA KULIAH TERHADAP PEMAHAMAN SISTEM PEMASARAN
Authors: Fatkhudin Aslam
Published: February 2022

With the proliferation of applications that support the buying and selling process or better known as e-commerce, and currently online buying and selling is a trend among students, and also a source of income that can be done in spare time, therefore to be able to increase the results of using e-commerce. -commerce required an understanding of the marketing system. In this study, research was conducted on what subjects were taught to students at the Fakultas Teknik dan Ilmu Komputer, Universitas Muhammadiyah Pekajangan Pekalongan which would help in understanding the marketing system. The C4.5 classification algorithm is used to build a decision tree that will make it easier to see courses that can be used to understand the marketing system. After the analysis, the subjects of entrepreneurship, management information systems, design analysis and information systems, data communication and computer networks, computer organization and algorithms and structured programming can be used to gain an understanding of marketing systems.
Uma proposta de sequência didática sobre agrotóxicos fundamentada na abordagem de controvérsias sociocientíficas e na teoria das situações didáticas
Authors: De Abreu Fochesato Quidigno Raquel , Krupczak Carla , Aires Joanez Aparecida , Camargo Sérgio , Bruns Zimer Tania Teresinha
Published: February 2022

Resumo: A Teoria das Situações Didáticas é muito utilizada nas pesquisas da Educação Matemática para fundamentar as práticas educativas, mas é quase desconhecida e pouco utilizada nas pesquisas e práticas da área de Educação em Ciências. Nesse sentido, o presente trabalho tem como objetivo propor uma sequência didática sobre agrotóxicos, fundamentada na abordagem de controvérsias sociocientíficas e na Teoria das Situações Didáticas, indicando atividades que tornem as aulas de Química mais críticas e dinâmicas. Este artigo apresenta o processo de construção dessa sequência didática que conta com um total de 14 aulas voltadas ao último ano do Ensino Médio, abordando conteúdos da área de Química (funções orgânicas) por meio da temática do uso de agrotóxicos no Brasil e seus impactos na saúde humana e no meio ambiente. Espera-se com este artigo auxiliar e estimular os professores a utilizarem no planejamento e na aplicação de suas aulas as controvérsias sociocientíficas e a Teoria das Situações Didáticas, uma vez que, pelo uso dessas duas perspectivas teóricas no desenvolvimento das aulas de Química, existe a possibilidade de promover aos estudantes um aprendizado interessante, contextualizado e que possibilita compreender o mundo a sua volta.
Palavras-chave: Questões Sociocientíficas. Ensino de Química. Educação em Ciências.
O ‘bom professor’: uma perspectiva dos estudantes de cursos superiores de tecnologia em gestão
Authors: Miranda Carlos , Ferreira Rafael , Villas Bôas Lucia , Monteiro Rui , Gimenez Roberto
Published: February 2022

Resumo: O objetivo do presente artigo foi analisar a percepção de estudantes dos cursos de graduação tecnológica de gestão em relação ao desempenho docente. Tomaram parte deste estudo 120 (cento e vinte) discentes dos cursos de Graduação Tecnológica em Gestão de uma faculdade particular, situada na Zona Oeste da cidade de São Paulo/SP. Utilizou-se de abordagem quanti-qualitativa, com a aplicação de dois questionários aos discentes dos referidos cursos. Nas primeiras questões, utilizou-se a Técnica de Associação Livre de Palavras (TALP), por meio da qual os discentes apontaram uma qualidade pessoal e técnica dos docentes, nas duas últimas questões pontuaram tais qualidades utilizando-se dos critérios da Escala Likert. De modo geral, os resultados do presente estudo sugerem que, na ótica dos participantes da pesquisa, os atributos pessoais do professor seriam mais importantes do que os profissionais para o processo de aprendizagem.
Palavras-chave: Bom professor. Cursos de tecnologia. Tecnologia em gestão. Formação docente.
A formação de mestres e doutores e sua produção científica no âmbito da Chamada Pública voltada à prevenção e ao combate ao vírus Zika
Authors: Rocha de Queiroz Kelly , Calabró Luciana
Published: February 2022

Resumo: O presente estudo objetiva analisar o apoio à formação de mestres e doutores e a produção científica dos discentes apoiados pela Chamada Pública voltada à Prevenção e ao Combate ao vírus Zika. Efetuou-se uma análise descritiva dos dados relativos ao apoio à formação de recursos humanos e uma análise cientométrica acerca da produção científica dos discentes. A partir da base de dados da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, verificou-se o gênero dos discentes, a quantidade de bolsas concedidas, as Instituições de Ensino Superior, as notas, as áreas de avaliação e as áreas básicas dos programas de pós-graduação. A produção científica foi coletada a partir da base de dados da Web of Science. Constatou-se que o apoio à formação de recursos humanos se desenvolveu em diversas áreas do conhecimento e instituições de ensino superior. Com relação à produção científica, foram encontrados 115 documentos de autoria dos discentes. Ademais, foi possível observar uma significativa rede de colaboração com outros países. Conclui-se que apesar de parte dos discentes ainda não ter obtido a titulação, os dados se apresentam como favoráveis a um possível êxito da Chamada Pública acerca da formação de recursos humanos, haja vista que o investimento colaborou com o desenvolvimento de produções científicas de autoria dos discentes, com o fortalecimento do Sistema Nacional de Pós-Graduação, bem como com a instrução de profissionais qualificados.
Palavras-chave: Doutores. Mestres. Produção Científica. Vírus Zika.
A materialidade da prática educativa e as motivações do professor para a docência no ensino superior
Authors: Machado Araujo Francisco Antonio , COSME DE CARVALHO MARIA VILANI
Published: February 2022

Resumo: Este texto é parte dos estudos teóricos e síntese analítica de uma tese doutoral, e objetiva o desenvolvimento de discussões sobre a prática educativa e as motivações do professor para a docência no ensino superior. Para o processo de produção e análise dos dados fez-se uso de dois dispositivos distintos e interligados epistemologicamente, intitulados de sessões de reflexão crítica e unidades analíticas do concreto real. O estudo ressalta que a docência do ensino superior é um tipo de prática educativa e sua materialidade, de forma ampla, é orientada pela tríade ensino, pesquisa e extensão. Sobre as motivações dos professores investigados para a docência, constatou-se que elas estavam relacionadas às afetações familiares, ao envolvimento com movimentos sociais, à intervenção de ex-professores e à possibilidade de poder colaborar com o desenvolvimento da educação básica. No que se refere ao ingresso no ensino superior, os professores significaram que suas motivações foram produzidas com base em seus anseios de poder contribuir com a qualidade da educação e da formação dos futuros professores da educação básica, além das possibilidades de produzir conhecimento científico na universidade. Os resultados da síntese analítica apresentados nesta discussão sugerem novos estudos, a fim de que se compreendam as particularidades das relações pessoais, profissionais e institucionais do professor do ensino superior, bem como a sua representação na manifestação do desenvolvimento profissional docente.
Palavras-chave: Prática educativa. Docência no ensino superior. Narrativa docente.
A mediação pedagógica em escolas da Paraíba: o papel docente na construção do conhecimento escolar
Authors: Dos Santos Pereira Aline , De Almeida Baptista Maria das Graças
Published: February 2022

Resumo: Esse artigo é fruto da dissertação de mestrado e trata do processo de mediação na construção do conhecimento escolar fundamentado na psicologia histórico-cultural. O objetivo é compreender a concepção do (a) professor (a) dos anos iniciais acerca do processo de mediação em escolas municipais de João Pessoa-PB. Em um primeiro momento, é  apresentado o pensar vigotskiano acerca da construção do conhecimento na escola como a elevação das funções psíquicas superiores dos indivíduos a partir da mediação do adulto em sua relação com a criança. Assim, é necessária para que o sujeito, a criança, se aproprie de sua própria historicidade. Apresentam-se, com brevidade, algumas perspectivas pedagógicas atribuídas ao vocábulo mediação na modernidade, destacando os fundamentos teórico-metodológicos em Vigotski, ou seja, o desenvolvimento das funções psicológicas superiores e a formação dos conceitos na idade escolar. Para o desenvolvimento dessa pesquisa, optou-se por uma abordagem qualitativa, uma vez que ela parte dos significados sociais e subjetivos a ele relacionados. À guisa de considerações finais, constatou-se diferentes concepções acerca do processo de mediação que apontam uma dicotomia entre teoria e prática, o que corrobora a reprodução da divisão do trabalho manual e intelectual no meio da força de produção.
Palavras-chave: Mediação pedagógica. Concepção do mundo. Construção do conhecimento.
Feira de ciências: uma possibilidade para a educação e divulgação científica
Authors: Candito Vanessa , Mendonça Menezes Karla , Braz Carlan Rodrigues Carolina
Published: February 2022

Resumo: As Feiras de Ciências vêm se revelando como uma importante estratégia de valorização e estímulo à educação científica nas escolas, pois possuem características de atividades pedagógicas, interativas, educativas e culturais, com elevado potencial motivador do ensino e da prática científica no ambiente escolar, de modo a preparar os estudantes para uma prática reflexiva, a construção do conhecimento científico, e a difusão da cultura científica. Esse estudo analisou o desenvolvimento da II Feira de Ciências e Saberes: Semeando o Futuro, e sua relevância para a educação científica na Educação Básica. Esse evento ocorreu em uma escola pública, localizada no município de Santa Maria/RS, foi aberto ao público, e contou com a presença de estudantes e professores, além da comunidade escolar. Durante todo o terceiro trimestre letivo, os professores e estudantes estiveram envolvidos no planejamento, preparação e desenvolvimento dos estudos, que resultaram em um total de 130 educandos envolvidos e 40 trabalhos apresentados em forma de comunicação oral, organizados em blocos temáticos. O evento demonstrou ser um importante meio para a divulgação científica ao permitir a socialização do conhecimento científico entre os estudantes e o público em geral. Assim, esse estudo aponta a relevância do desenvolvimento de feiras de ciências nas escolas, promovendo a compreensão científica no estudante, a construção de competências e um importante momento de divulgação científica.
Palavras-chave: Educação Básica. Feiras de Ciências. Investigação Científica. Divulgação Científica.
Computation-in-memory simulation platform to investigate inference accuracy degradation by device non-ideality interactions in deep neural network applications
Authors: Higuchi Kazuhide , Matsui Chihiro , Misawa Naoko , Takeuchi Ken
Published: February 2022

This paper proposes a comprehensive computation-in-memory (CiM) simulation platform. The platform has the capability to emulate the degradation of inference accuracy caused by device non-ideality. In this paper, the effect of non-ideality by assuming non-volatile memory devices such as PRAM, ReRAM, MRAM, and FeFET in CiM were investigated. As the device is non-ideality, multi-level cell operation, conductance variation during verify-program, data retention error, sense amplifier offset, read current fluctuation, and device failure are considered. First, the acceptable amount of a single non-ideality was investigated. The results address that the conductance shift has much more of an adverse impact than conductance variation on inference accuracy in CiM. In the second place, interaction among multiple device non-idealities were also comprehensively investigated. The platform reveals paradoxical results that the inference accuracy of the combination of uniform shift and low conductance asymmetric error is higher than that of a single low conductance asymmetric error under specific conditions.
CMP legend: revolution and evolution
Authors: Tsujimura Manabu
Published: February 2022

Since the invention of the transistor in 1947, semiconductors have seen phenomenal development in accordance with Moore’s Law G. E. Moore, Electronics
38, 19, (1965), which is based on Dennard’s theory R. H. Dennard, et al. IEEE J. Solid-State Circuits, 9, 256 (1974) on scaling. More than 30 years have passed since the advent of CMP M. Kashiwagi, CMP Science, 26, (1977), the “most amazing technology that has contributed most to Moore’s law” according to Dr. Moore. Beginning with the CMP life cycle, this paper looks back on the history of CMP development, recognizes the current situation, and overlooks the future of polishing, cleaning, and monitoring. The paper also introduces the evolution of CMP, a revolutionary technology that emerged in the 1980s, together with some trivia from that period, and further introduces some episodes that are already or will be handed down as legends. In preparation for the paradigm revolution of semiconductors that is expected to occur in 2030, CMP software, as well as hardware, needs to advance more dramatically than before.
AlGaOx nanowires obtained by wet oxidation as a visible white phosphor under UV-LED illumination
Authors: Tanigawa Takeru , Tsutsumi Rikuo , Ishikawa Fumitaro
Published: February 2022

We obtain white luminescence by the oxidation of GaAs/Al-rich Al0.87Ga0.13As nanowire which is visible to the eye. The oxidized amorphous AlGaOx shell emits light over a wide spectral range covering entire visible wavelengths between 400–700 nm. The emission intensity depends on the oxidation temperature and time. Through the optimization of those conditions, we observe clear white light from the sample by the eye under the illumination of ultraviolet light-emitting diodes, which would be applicable as a white light phosphor.
Micro-print and nano-imprint methods combining laser-drilled screen printing and ultraviolet nanoimprint lithography: a review
Authors: Nakagawa Masaru
Published: February 2022

Ultraviolet (UV) nanoimprint lithography consists of molding–demolding and lithographic etching processes, which enable the shape transfer of molded resist patterns to underlying substrate surfaces. UV nanoimprint lithography has been applied in various fields, including optics, electronics, biology, and energy engineering. An important key to shape transfer through resist masks is to level the thicknesses of thin residual layers. To solve this issue, the region-selective placement of UV-curable droplets on a substrate is effective for leveling the thickness of the residual layer regardless of the differences in mold pattern density. Herein, we developed laser-drilled screen printing that allows the quantitative placement of high-viscosity UV-curable liquids on substrate surfaces via screen printing using a polyimide through-hole stencil mask prepared via ultrashort-pulse laser drilling. This review explains the practical demonstrations of UV nanoimprint lithography involving laser-drilled screen printing: nano/micro fabrication of Au split ring resonators, Au four-terminal electrodes, and silicon line patterns.
Measurement of liquid viscosity using series resonant resistance response of quartz crystal microbalance
Authors: Wang Yan , Li Chong , Zhao Baorui
Published: February 2022

Liquid viscosity measurement is widely used in petrochemical, medical and other fields, while the traditional viscosity measurement equipment is usually cumbersome and costly. This paper introduces a method for measuring the viscosity of liquid using the series resonant resistance response model of quartz crystal microbalance (QCM). In the confirmatory experiments of water and glycerol solution with 50% water content, the maximum absolute error is less than 4.50%, which shows the accuracy and validity of the theoretical model. At the same time, we found that the series resonant resistance response has higher accuracy and stability than the frequency response in the field test results of the viscosity of 0# diesel. This study is of great significance to the application of QCM in the liquid phase and has broad application prospects in the field of viscosity detection.
GaN channel waveguide with vertically polarity inversion formed by surface activated bonding for wavelength conversion
Authors: Yokoyama Naoki , Tanabe Ryo , Yasuda Yuma , Honda Hiroto , Ichikawa Shuhei , Fujiwara Yasufumi , Hikosaka Toshiki , Uemukai Masahiro , Tanikawa Tomoyuki , Katayama Ryuji
Published: February 2022

We proposed a nitride semiconductor transverse quasi-phase-matched wavelength conversion device with a polarity inverted structure along the vertical direction formed by surface-activated bonding and etching processes. Inductively coupled plasma etching of a GaN layer with maintaining a root mean square roughness of less than 2 nm in a 100 μm square area was achieved even after deep etching of 1 μm using Cl2/Ar mixture gas and optimizing the antenna and bias powers. This smooth etching enabled surface-activated bonding of the ultrathin GaN layer with designed thickness. The fabrication process of the GaN polarity inverted channel waveguide was established.
Исследование процесса обогащения и регенерации фосфоритов азотной кислотой и этиловым спиртом
Authors: Дехканова З. , Хошимханова М.
Published: February 2022

В монографии дана характеристика апатитовых и фосфоритовых руд и рассмотрены различные методы их обогащения. Для фосфоритов, содержащих большое количество карбонатов и органических веществ, наиболее приемлемым способом обогащения является термический обжиг. Химические методы обогащения основаны на селективном растворении карбонатов или минералов пустой породы. Найдены оптимальные условия процесса: химического обогащения высококарбонатного фосфатного сырья, конверсии нитрата кальция – побочного продукта обогащения фосфатного сырья в нитрат аммония и карбонат кальция и переработки раствора нитрата кальция в жидкую и гранулированную кальциевую селитру. По безотходной технологии проведено химическое обогащение карбонатных фосфоритов Центральных Кызылкумов азотнокислотной кислотой в присутствии органического растворителя – этанола. Последняя легко регенерируется и возвращатся в цикл промывки. Монография предназначена для ученых и специалистов, работающих в области химии и технологии удобрений, агрохимии, бакалавров и магистрантов, обучающихся по технологии неорганических веществ.
MANAGEMENT OF AN UNRECOGNIZED AND DELAYED DIAGNOSED CASE OF BILATERAL CONDYLAR DISLOCATION FOLLOWING ORAL CANCER SURGERY - A CASE REPORT
Authors: Sumedha Munka , Partha Sarathi Chakraborty , Subhas Ch. Debnath , Prasanta Kr. Rabha
Published: February 2022

Temporomandibular joint (TMJ) dislocation is characterized by displacement of the mandibular condyle from the glenoid fossa. There are various
reasons for the dislocation of TMJ, among which iatrogenic dislocation is one of the cause which is generally overlooked. Acute dislocations can be
corrected by various conservative methods like manual reduction, but long standing chronic dislocation requires surgical management. Here we
present a case report of an unrecognized and delayed diagnosed case of bilateral condylar dislocation following oral cancer surgery under general
anaesthesia with iatrogenic fracture of ramus of mandible which was managed surgically by vertical ramus osteotomy and ORIF.
THE COMPARATIVE STUDY BETWEEN FENTANYLAND LIGNOCAINE-TRAMADOLMAGNESIUM SULFATE COMBINATION ON INTRAOPERATIVE HEMODYNAMICS AND INTUBATION SURGE IN PATIENTS UNDERGOING SURGERY UNDER BALANCED GENERALANESTHESIA
Authors: Basu Paramita , Barua Debabanhi , Kumar Kundu Asim , Premanand Azgaonkar Sarvesh , Mukherjee Abhishek
Published: February 2022

INTRODUCTION- Laryngoscopy and endotracheal intubation invariably cause hemodynamic changes associated with increased heart rate,
increased blood pressure and occasional disturbance in cardiac rhythm. These hemodynamic changes arise as a form of autonomic reex and due to
release of norepinephrine and to a lesser extent epinephrine. Effective attenuation of sympathoadrenal response is an important goal in
anaesthesiology. Not only the intubation surge but the intraoperative hemodynamic maintenance is also a very challenging step for a successful
balanced general anaesthesia.
METHODOLOGY- 60 normotensive patients belonging to ASA1 and ASA2 (age between 18 to 60 yrs)scheduled for elective surgical procedure
were divided randomly into two groups of 30 each. All patients received premedication with Midazolam. Group F will received Fentanyl 2ug/kg 3
minutes before intubation and group M received Tramadol 1mg/kg , Lignocaine 2% 1.5mg/kg and Mgso4 2gm over 10 minutes 15 minutes prior to
intubation. Pre-oxygenation was done for 5 minutes before laryngoscopy. Induction of anaesthesia was done with Propofol. Intubation was done by
using Succinylcholine. Intraoperative hemodynamics was maintained by O2, N20, Sevourane and Atracurium. Heart rate, SBP, DBP and MAP
were documented non-invasively at baseline ,before induction,1 minute ,3,5,15 and 30 minutes after intubation.
RESULT- There was no statistically signicant difference in the demographic characteristics between the two groups. Immediately after
intubation heart rate, systolic blood pressure, diastolic blood pressure and mean blood pressure were better controlled in Fentanyl receiving
patients. But thereafter intraoperative hemodynamics (HR,SBP,DBP,MAP) are better maintained in patients receiving the Three Drug
Combination of Lignocaine-Tramadol-Magnesium Sulfate(statistically signicant).
Moreover intraoperative requirement of Non-depolarising muscle relaxant is signicantly less frequent in the Three Drug Combination receiving
patients as compared to Fentanyl receiving patients. Post-operative timing of receiving rst dose of rescue analgesic is also delayed in LignocaineTramadol-Magnesium Sulfate receivers.
EVALUATION OF EFFICACY OF ALOE VERA JUICE IN OSMF PATIENTS
Authors: Pallavi Pallavi , Agarwal Nitin , Tripathi Payal , S Saxena Vasu , Agarwal Neha , Shukla Sudhir
Published: February 2022

OSMF can be dened as a chronic, insidious disease which is extensively found in India and etiology is credited to the habit of betel nut and areca
nut chewing. AIM: Our study aimed at evaluating the efcacy of aloe vera juice in OSMF patients bases on the burning sensation, inter incisal
duistance, cheek exibility and tongue protrusion. Material & Methods: 50 Patients were administered with aloe vera juice systemically 30 ml
two times a day with a regular interval of follow up after every fortnight. Results:signicant improvement seen on the basis of all four parameters.
Conclusion: Many treatment modalities since decades have been provided by many authors but no totally effective modality is available. We can
conclude from our our study that Aloe vera is effective in treating OSMF but not yet considered to be a proven cure for it.
MUSCLE FUNGAL GRANULOMA DUE TO CLADOSPORIUM SPECIES: A NOVEL SURPRISE
Authors: Tendulkar Sushrut , Merchant Mikail , Thakur Abhijit , Misquitta Hansel
Published: February 2022

The spectrum of mycotic diseases continue to expand, making it challenging for treatment of infections caused by a diverse array of opportunistic
fungi especially in immuno-compromised individuals. The species of Cladosporium implicated in human infections is found as causative agents
for infections of the central nervous system, lung, liver, keratitis, and dental granulomas. Involvement of a muscle by a fungal granuloma in an
immunocompromised individual by Cladosporium species is very rare and has been never reported before to the best of our knowledge. Below we
present a novel case of a 34 year old, Post-transplant Immunocompromised male to have developed a lump within the Triceps Brachii muscle which
was found to be a Cladosporium Cladosporioides granuloma and was treated successfully with a multimodal approach of Surgery and Voriconazole
anti-fungal therapy.
RNAi: VIRAL THERAPEUTICS
Authors: Shah Jishwa , Patel Priyanka , Nayak Saryu
Published: February 2022

RNA interference or RNAi is a natural biological response in eukaryotic cells as their antiviral defense mechanisms. RNAi protects a range of
organisms by gene silencing or down regulating protein expression. RNAi induces the activation of ribonucleases targeting degradation of RNA
molecules encoding proteins. Genomic alterations have also been observed due to RNAi mechanisms. RNAi has been an important part of
biomedical research in terms of elimination and control of viral pathogens. Also RNAi intermediates as small interfering RNAs (siRNAs) are noted
to aid antiviral immunity. RNAi has also been involved in targeted transfer and activation of certain molecules which help in treatment of certain
clinical disorders. This technique has been used in many applications owed to its adaptabilities. RNAi is resilient over other techniques of gene
editing attributed to its dose-dependent applications providing the user a better control. The highly efcient results of RNAi have paved its way for
its application in viral infection diagnosis, control and treatment.
INGUINOSCROTAL SWELLINGS IN CHILDHOOD: A CLINICO-DIAGNOSTIC APPROACH TO DIFFERENTIAL DIAGNOSIS
Authors: Mhapsekar Rukmangad , Sarvaiya Sagar , Kalathiya Devang
Published: February 2022

BACKGROUNDS: Inguinoscrotal illnesses are one of the commonest gathering of problems seen in clinical careful practice. A wide scope of
swellings are found around here in youngsters and incorporates hydrocele, twist testis, ectopic testis, lymphadenopathy, inguinal hernias, sores,
epididymitis, orchitis, cancers and so on Careful clinical and radiological assessment of inguinoscrotum for changing infections helps in
appropriate determination and careful administration of its differential analysis.
METHOD: The current review was directed as an observational review over a time of 10 months and enlisted a sum of 50 patients.
RESULTS: In this review, 31 cases had hydrocele, 14 cases had inguinal hernia, 2 cases had epididymorchitis, 2 cases had lymphadenopathy and
one case had idiopathic scrotal edema. Individual sicknesses had changing introductions, clinical discoveries and post-usable discoveries.
CONCLUSIONS: There is a shifting wide range of swellings in the inguinoscrotal area in youthful male kids. It was inferred that legitimate
clinical and radiological assessment of the patient serves to opportune analyze the sickness and henceforth help in distinguishing right way to deal
with the administration of the case.
PREVALENCE AND RISK FACTORS FOR ANTENATALAND POSTPARTUM DEPRESSION AMONG WOMEN IN RURALAREA OF CHENNAI
Authors: Kannappan Jayashree , Mannam Abhilash Kannappan , Subathiraa V. S.Prema , Dinakaran Shanthi , Kalaiselvi P. S. Jikki
Published: February 2022

Background and Objective: Maternal depression is an important public health problem. Preterm labour, low birth weight, and intrauterine growth
restriction have all been linked to antenatal depression, which is generally underdiagnosed. Postpartum depression has been linked to motherinfant bonding issues, child maltreatment, child neglect, maternal drug misuse, and self-harm in studies. Depression among pregnant and
postpartum teenagers is prevalent in many parts of the world. The incidence of depression and its related risk factors among pregnant and
postpartum adolescents in Sriperumbudhur, Chennai, is reported in this research.
Methods: Descriptive cross-sectional research using a sample of 160 teenage girls using maternity health care in a medium-sized rural peripheral
district hospital in Chennai was undertaken between June and November 2021. The Edinburgh Postnatal Depression Scale was used to examine
pregnant and postnatal adolescents who took part in the study as the treatment of depression. Mean of parameters were assessed and correlation
value were calculated by Fisher's exact test. The statistically signicant Pvalue was less than 0.05.
Results: The sociodemographic factors have been demonstrated to have a major role in explaining the variation in prenatal and postpartum
depression prevalence rates. According to the data, less than a third of pregnant women suffer from depression as a result of life events such as
economic problems, which they must overcome in order to sustain their family. These were shown to be signicant risk factors (P>0.05). In the
meanwhile, it was 9.4% (15/160) among postpartum participants. Physical violence (adjusted odds ratio (aOR) 7.32, 95% CI 1.66-29.44, p =
0:005), verbal abuse (aOR) 4.3, 95% CI 1.03-15.79, p = 0:03), and intimate partner violence (aOR) 9.58, 95% CI 1.58-48.82, p = 0:008) were all
linked to postnatal depression.
Conclusion: In the research sample, prenatal depression was more common than postpartum depression. As a result of the ndings, maternal
healthcare providers are being advised to examine the mental health of pregnant and postpartum teenagers seeking treatment at health institutions.