bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Board Diversity Terhadap Konservatisme Akuntansi (Studi Empiris Pada Perusahaan Yang Terdaftar Di Bursa Efek Indonesia 2017-2019)
Authors: Dharma Fitra , Ulviana Lia , Amelia Yunia
Published: February 2023

This study aims to examine and obtain empirical evidence of the influence of female Chief Executive Officer (CEO), female Chief Financial Officer (CFO), female Board of Commissioners on accounting conservatism in all companies listed on the IDX in 2017-2019. The sample of this research is all companies listed on the Indonesia Stock Exchange (IDX) during the 2017-2019 period. The sample selection in this study using purposive sampling method, obtained 124 companies and multiplied during the year of the study, so that the total sample in this study was 372. The dependent variables used in this study were accounting conservatism, female CEO, female CFO, and female Board of Commissioners as independent variable. Tests in this study using analysis tools E-Views (Econometric Views) and for data analysis in this study using linear regression analysis. The results of this study indicate that female CEOs, female CFOs, and female Board of Commissioners have no significant effect on accounting conservatism
Host range, damage extent and leaf consumptions by the bagworm, Thyridopteryx ephemeraeformis Haw. (Lepidoptera: Psychidae) in Bangladesh
Authors: Hussain Khan Md Mohasin
Published: February 2023

Bagworm, Thyridopteryx ephemeraeformis Haw. (Lepidoptera: Psychidae) is a polyphagous pest in Northern America and southern Australia, causing severe damage to several host plants. A study was conducted to record the host plants, damage extent, and morphometrics of bagworms in Patuakhali Science and Technology University (PSTU) from 2015 to 2018. Results revealed a limited number of host plants for bagworm namely guava (Psidium guajava), arborvitae/juniper (Thuja standishii), rangan or jungles, geranium (Ixora grandiflora/Ixora coccinea), mussaenda (Mussaenda philippica), cropperleaf (Acalypha wilkesiana ‘Ceylon), henna (Lawsonia inermis), mango (Mangifera indica), pomegranate (Punica granatum) and betel nut (Areca catechu). The length of tiny larvae, fully-grown larvae, pupa, adult winged male moths, and wingless adult maggot-like females was 1.02 mm, 24.8 mm, 14 mm, 15 mm, and 48 mm, respectively. The average length of the bag was 24.7 mm with a range of 21-28 mm, and the average breadth in the middle of the bag was 6.9 mm with a range of 6-8 mm. The highest number of larval cases per branch was found in guava (56), and the lowest was in copperleaf (8). The highest percent of leaf damage (86.23%) per plant was also observed in the guava plant, and the lowest percent of leaf damage (37.46%) was in copperleaf. The highest number of infested leaves and bags per leaf was observed in the lower stratum of the guava branch, while the lowest infestation was in the top stratum. The highest percentage of leaf area (30%) damage was recorded 72 hours after release (HAR), and the lowest percentage of leaf area (10%) damage was at 24 HAR in guava. The maximum amount of leaf was consumed by bagworm larva at 72 HAR and the minimum amount was consumed at 24 HAR in guava. The maximum leaf area (13.46 cm2) consumption was recorded at 72 HAR, while the minimum amount (3.42 cm2) was consumed at 24 HAR. No significant damage by T. ephemeraeformis was observed in the case of mango, pomegranate, and betel nut plants.
J. Asiat. Soc. Bangladesh, Sci. 48(1-2): 1-17, June-December 2022
Community structure, ecology, and conservation issues of avifauna of two human-dominated landscapes in Faridpur district, Bangladesh during Covid-19 pandemic
Authors: Biswas Dipto , Jaman Mohammad Firoj , Alam Md Mahbub , Rabbe Md Fazle , Shome Ashikur Rahman
Published: February 2023

A study was conducted on community structure, ecology, and conservation issues of the avifauna of two human-dominated landscapes in a lower Ganges Madhukhali Upazila, under the Faridpur district during the COVID-19 pandemic period. Direct field observations were made from April 2020 to March 2021. In total, 109 species of birds belong to 18 orders, and 49 families were observed, with a total count of 5,453 individuals. Resident bird species (93 species, 85.32%) dominant in the study area, whereas the migratory species were only 16 (14.68%). The highest number of bird species (93 species, 85.32%) with the highest number of individuals (n=3171, 58.15%) was observed in Beleswar (rural site) area. Shannon diversity index value (H=3.89, Ds= 0.9724) was higher in the rural site than Madhukhali municipal area (urban site). In the winter season, the highest number of bird species (95 species, 87.15%) with the highest number of individuals (n=2303, 42.23%) was observed. Among micro-habitats, trees, particularly the native tree species, were the preferable sites for bird nesting, foraging, and roosting. Among birds, Acridotheres tristis was the most abundant species (n=316, 5.79%) in the study area, and an uneven distribution of species in the community structure was observed. The abundance of birds shows that 59 (54.12%) species were very common, 8 (7.33%) common, 9 (8.25%) uncommon, and 33 (30.27%) rare. Among the bird species, Ichthyophaga ichthyaetus was categorised as Near Threatened (NT), and the rest are Least Concerned (IUCN Bangladesh 2015). Illegal hunting of birds, especially waterbirds, is the major threat in the rural site. Preparing a proper management plan based on the baseline data is essential for protecting of avian diversity in the study area.
J. Asiat. Soc. Bangladesh, Sci. 48(1-2): 53-66, June-December 2022
Academic Fraud during the Covid-19 Pandemic for High School Students
Authors: Alhamuddin Alhamuddin , Inten Dinar Nur , Adwiyah Rabiatul , Murniati Andi , Fanani Ahmad
Published: February 2023

This study aims to determine the academic fraud students committed to doing assignments during the Covid-19 pandemic. This study used a descriptive method with a quantitative approach. Data collection was done by randomly distributing Google Forms to high school students in West Java Province. There were about 540 samples that were successfully captured in this study. The data analysis technique was carried out employing descriptive statistics. The results showed that as many as 88.3% of students stated that they committed academic fraud in doing the assignments given to them by the teacher. The fraud was done by copying and pasting a friend's assignment from the internet and doing things without obligation. It was done because there was no particular action from the teacher against cheating students. Particular policies need to be made by schools; namely, the teacher instills the values of Honesty and other anti-corruption values in the learning process. Besides that, the use of technology is to determine whether there is an element of plagiarism in student assignments. Parents at home also need to instill anti-corruption values ​​in their children from an early age so that they are familiar with these things.
Potenciais inoculantes de bactérias diazotróficas em Hibiscus sabdariffa L.
Authors: Morinishi Caio Takeshi , Silva Luis Felipe Lima e , Florentino Ligiane Aparecida , Lima Felipe Mendes de
Published: February 2023

O Hibiscus sabdariffa L., conhecido como vinagreira ou azedinha é uma hortaliça classificada como Planta Alimentícia Não Convencionai (PANC), exigente em alta fertilidade de nitrogênio. O uso de microrganismos para suprir a demanda do nutriente é uma alternativa viável. Com isso, o objetivo desta pesquisa experimental foi avaliar isolados de bactérias diazotróficas no crescimento vegetativo de hibisco. O delineamento estatístico utilizado foi em blocos casualizados, contendo 8 tratamentos e 5 repetições, totalizando-se 40 parcelas experimentais, sendo cada parcela um vaso contendo duas plantas. Os tratamentos foram constituídos por 6 diferentes mix bacterianos (B1, B2, B3, B4, B5 e B6) de estirpes mantidas em armazenamento controlado no Laboratório de Microbiologia Agrícola- UNIFENAS, acrescido de 2 controles, controle positivo (CP), sem inoculação, acrescido de fertilização completa, controle negativo (CN), sem inoculação e fertilização. A colheita da parte aérea e das raízes foi realizada após 90 dias do plantio, avaliando-se as principais medidas biométricas. O tratamento B4 utilizando as estirpes HNFB3B e HJR3, apresentou o melhor resultado nas variáveis biométricas de altura, número de folhas e biomassa radicular da planta.
Influência da solução de imersão e da interação com a dentina na solubilidade de cimentos endodônticos biocerâmicos pronto para uso ou pó-líquido
Authors: Gonçalves Alessandra Alves , Santos-Junior Airton Oliveira , Tavares Karina Ines Medina Carita , Pinto Jáder Camilo , Guerreiro-Tanomaru Juliane Maria , Tanomaru-Filho Mario
Published: February 2023

O objetivo deste estudo foi avaliar o efeito da solução de imersão e da interação com a dentina na solubilidade de cimento biocerâmico pronto para uso NeoSEALER® Flo (NSF) ou pó-líquido BioRoot RCS (BR). Moldes com diâmetro interno de 5 mm e 1,5 mm de altura foram confeccionados em polietileno ou dentina bovina. Após preenchimento com NSF ou BR, foram mantidos em estufa por 24h. Após determinação da massa inicial em balança de precisão, os espécimes foram imersos em 7,5 mL de água destilada (AD) ou solução salina tamponada com fosfato (PBS) (n=8) por 7 ou 14 dias. A massa final foi obtida após pesagem até estabilização da massa. A solubilidade foi avaliada de acordo com a diferença entre a massa inicial e final em porcentagem. Teste ANOVA de duas vias, Bonferroni e teste t não pareado foram utilizados (α=0,05). Após 7 dias, ambos materiais apresentaram menor solubilidade em PBS que em AD (p<0,05). Modelo de preenchimento não influenciou a solubilidade (p>0,05), exceto para polietileno/NSF em AD após 7 dias (p<0,05). NSF apresentou menor solubilidade que BR em AD (dentina) ou PBS (polietileno) após 14 dias (p<0,05). Conclui-se que PBS proporciona menor solubilidade que AD para NSF e BR após 7 dias. Modelo de preenchimento de polietileno influencia a solubilidade de NSF após 7 dias. A solução de imersão não influencia a alteração de massa após 14 dias. Novas abordagens metodológicas podem representar alternativas importantes para avaliação de solubilidade de cimentos biocerâmicos.
Próstata Feminina: Concepções históricas, morfológicas, patológicas e evolutivas
Authors: Frazão Luiz Felipe Neves , Batista Matheus Neres , Maia Pétala Diane Koster , Alves Cleiber Amaro , Lobo Isabella Rodrigues , Silva Maria Eduarda Barbosa , Gomes Gabrielly Caroliny Souza , Penha Lívia Franco , Santos Antônio José Coimbra dos , Mariano Ester Emanuela , Lacerda Virgínia Mara Modesto da Silva , Lemos Eduarda de Paiva , Oliveira Giovana Jenifer Santana de
Published: February 2023

O objetivo desta revisão é demonstrar aspectos essenciais da próstata feminina, agregando literaturas históricas e científicas, e contextualizando relatos atuais sobre o desenvolvimento, aspectos morfológicos, patológicos e funções biológicas que esta glândula pode vir a apresentar.  O presente estudo trata-se de uma revisão narrativa, na pesquisa sobre a próstata feminina. Foi realizada uma pesquisa de artigos nas bases de dados Medical Literature Analysis and Retrievel System Online (MEDLINE), Scientific Electronic Library Online (SciELO) e PubMed, com os seguintes Descritores em Ciências da Saúde (DeCS): Female ;Female Gland; Prostate Gland; Prostate. Foram selecionados artigos entre os períodos de 1880 a 2023, nos idiomas Alemão, Espanhol, Inglês e Português. Ao contrário do que se pensava a próstata não é uma glândula existente apenas em humanos do sexo masculino. Pesquisas mostram que essa glândula está presente em diversos mamíferos inclusive no humano do sexo feminino. O ambiente hormonal é alterado pela ação de vários disruptores endócrinos e através destes fatores podem ocorrer tumores malignos em sua estrutura, assim como ocorrem em indivíduos do sexo masculino. É perceptível a gama de patologias que possuem potenciais de acometerem a próstata feminina, doenças presentes em casos já relatados na literatura. É necessário a aprimoramento em estudos observacionais e literários acerca da próstata feminina, para o esclarecimento detalhado das funções biológicas e evolutivas dessa glândula. Além de pesquisas epidemiológicas sobre as patologias que podem acometer o público feminino, pois, mesmo em casos raros, podem ser empecilhos na saúde humana no futuro.
Aspectos imunológicos durante o processo inflamatório: uma revisão narrativa
Authors: Frazão Luiz Felipe Neves , Batista Matheus Neres , Lima Sarah Flores Sotério , Lima Leandro Luís Sotério , Silva Ketlen Kellen , Lopes João Arthur de Paiva , Ferraz Bhrisa Avlis , Spagnoly Yago Gabriell Loiola , Botelho Lara Fabian Silva , Mendonça Raíssa Freire de , Duarte André Furtado , Oliveira Ana Luiza Niedermeyer de , Morais Ana Caroline da Silva
Published: February 2023

O sistema imunológico é constituído por uma intrincada rede de órgãos, células e moléculas, e tem como principal função manter a homeostase do organismo humano, combatendo as agressões em geral. É constituído por dois grupos de imunidade, a inata e a adaptativa. Frente às inconsistências entre os estudos, a presente proposta caracteriza-se por uma revisão narrativa que objetivou elucidar as hipóteses da literatura referentes ao paradigma da associação entre a resposta imune e o processo inflamatório. Este estudo trata-se de uma revisão narrativa com o propósito de discutir e descrever sobre resposta imune e sua relação com os processos inflamatórios. Foi utilizado o banco de dados: SciElo (Scientific Eletronic Library Online) e PubMed (US National Library of Medicine), com dados científicos de 2 de outubro de 2022, com restrição de idioma (português) e sem restrição ao ano de publicação. Os estudos analisados abordaram principalmente a resposta inflamatória. A inflamação inicia-se na microcirculação. É nela que nutri os tecidos dos micronutrientes essenciais e limpa os resíduos indesejáveis. A microcirculação tem um papel valioso na pressão sanguínea. Ela é composta pelas arteríolas, capilares e vênulas pós-capilares. Eles são constituídos por uma camada de células endoteliais revestidas por colágeno. Em suma, os linfócitos agem no organismo como um importante estrutura de defesa, interagindo em um complexo de células e moléculas específicas, reconhecendo os agentes invasores e impedindo a sua ação, mantendo a integridade e equilíbrio do mesmo.
Impactos do isolamento social causados pela COVID-19 no comportamento de cães e gatos
Authors: Melo Ana Gabriela Cardoso , Santana Alessandra de , Aragão Emilly Oliveira , Rocha Leandro Branco
Published: February 2023

Uma sucessão de mudanças na rotina humana ocorreu devido à pandemia da COVID-19 (Sars-CoV-2) com a recomendação de isolamento social. Sendo assim, os cães e gatos permaneceram mais tempo com seus tutores. Este projeto de pesquisa objetivou averiguar as implicações dessa situação no comportamento destes animais residentes em Aracaju, Sergipe, Brasil. Para o estudo foi aplicado questionário padrão de caráter fechado por meio da plataforma Google Forms e disseminado de forma digital. Foram feitas perguntas objetivas referentes a realização das necessidades fisiológicas fora do local, a condição corpórea e aos níveis dos comportamentos de inquietação, tristeza, miado/latido, queda de pelo, lambedura/mordedura, coceira, morder/arranhar objetos e carência. Dentre as alterações apresentadas, a carência obteve maior média e tristeza a menor média, os animais continuaram a realizar suas necessidades nos locais habituais e houve algum ganho de peso. Conclui-se que o isolamento social não provocou estresse importante nos animais de estimação, e sim, uma maior troca afetiva com os tutores.
O papel da endometriose na infertilidade feminina: uma revisão integrativa de literatura
Authors: Carneiro Heitor Laborão , Figueiredo Bárbara Queiroz de , Machado Katiuscia Silva , Cunha Lara Lima Pereira da , Pereira Rafaela Miranda Proto , Naves Priscila Gomes Ribeiro , Silva Jhully Lane Andrade , Lage Letícia Tupinambá , Sousa Josilene Maria de , Souza Reinaldo Luiz de
Published: February 2023

Este artigo procurou destacar a relação entre endometriose e infertilidade, caracterizando aspectos a respeito da epidemiologia, sintomatologia e diagnóstico com enfoque nas possíveis causas da infertilidade nas mulheres acometidas por esta patologia. A endometriose é uma doença inflamatória crônica que causa danos à saúde da mulher, a reprodução, aumenta o risco de depressão, traz limitações nas atividades de vida diárias e consequente redução da atividade social e laboral, devido à sintomatologia que lhe é tão característica. A infertilidade causada pela endometriose pode estar associada a distúrbios imunológicos, endócrinos ou por distorções anatômicas juntamente à aderências de tecido fibroso. Atualmente existem três opções terapêuticas disponíveis como terapia para a infertilidade associada à endometriose: tratamento clínico, cirurgia e tecnologias adaptadas para reprodução assistida. Por fim, é notório que a endometriose causa infertilidade, porém requer mais pesquisas devido aos mecanismos pelos quais leva a este fim ainda não estão totalmente elucidados e não existe uma terapêutica padronizada para as pacientes portadoras da patologia.
ANALISIS SENTIMEN MASYARAKAT INDONESIA TERHADAP PEMBELAJARAN ONLINE DARI DI MEDIA SOSIAL TWITTER MENGGUNAKAN LEXICON DAN K-NEAREST NEIGHBOR
Authors: Halimi Ahmad , Kusrini Kusrini , Arief M Rudyanto
Published: February 2023

Semenjak keputusan pembelajaran secara online oleh mendikbud di masa pandemi covid-19, membuat masyarakat emosi serta meluapkan opini merka ke media sosial. Tujuan penelitian ini untuk mengetahui sentimen positif, negatif ataupun netral terkait kebijakan mendikbud terhadap pembelajaran online yang keberlangsungan.Data yang diperoleh dari media sosial twitter yang berkaitan dengan hastag-hastag pembelajaran online. Di penelitian ini untuk melakukan klasifikasi sentimen menggunakan Lexicon dan K-Nearest Neighbors untuk mengetahui sentimen yang terjadi pada tweet dan pengujian hasil akurasi menggunakan K-Nearest Neighbors dengan validasi Nilai K=3 sampai K=9. Maka dalam pengujian data yang telah dikumpulkan kurang baik untuk dilanjutkan klasifikasi sentimennya, di perlunya preprocessing kata pada kalimat tweet supaya lebih baik serta menghapus kalimat yang kembar, sehingga proses klasifikasi sentimen dengan K-Nearest Neighbors dan Lexicon sangat baik. Hasil dari penelitian ini memperoleh tweet positif sebanyak 1433, tweet negatif sebanyak 461 dan tweet sebanyak netral 71 untuk K-Nearest Neighbors dan Lexicon tweet sebanyak positif 759, tweet negatif sebanyak 653 dan tweet netral sebanyak 553 serta hasil akurasi dari pengujian validasi nilai K yang terbaik pada nilai K=3 dengan data sentimen K-Nearest Neighbors sebesar 80.66% dan data sentimen sebesar Lexicon 80.92%. Maka hasil lebih baik pada data sentimen Lexicon dengan validasi K=3.
Integrasi Aplikasi Manajemen Praktikum dan Tugas Akhir dengan Kredit Poin Mahasiswa Berbasis Android Untuk Mempermudah Dosen Dalam Memonitoring Kegiatan Mahasiswa
Authors: Rizal Fathur , Julianto Erik Eko , Firmansyah Edi , Jannah Nuril Lukluwatil
Published: February 2023

Sistem kredit poin mahasiswa dan Sistem informasi monitoring praktikum dan tugas akhir yang terdapat di Universitas Nurul Jadid saat ini masih belum terintegrasi dengan baik. Hal ini meminbulkan permasalahan dosen atau pun mahasiswa sering meminta akun untuk dapat mengakses aplikasi monitoring bimbingan kembali saat pelaksanaan praktikum dilaksanaan serta dosen maupun mahasiswa harus melskukan instalasi dua aplikasi tersebut dan menggunakan akun yang berbeda untuk dapat menggunakan dua sistem yang ada. Oleh sebab itu, penelitian ini bertujuan untuk mengintegrasikan dua sistem yang ada menjadi satu sistem yang terpadu sehingga dapat mengatasi masalah yang ada. Metode yang digunakan dalam penelitian ini yakni menggunakan Reseach and Development serta Model Prototyping dalam pengembangan sistemnya. Penelitian ini menghasilkan satu sistem terpadu dari dua sistem yang ada sebelumnya. Hasil pengujian diperoleh 15% responden menyatakan baik terhadap user interface, 49% menyatakan baik terhadap user experiences, 47% menyatakan sangat baik terhadap functionality, 49% menyatakan sangat baik terhadap usable  dan 47% menyatakan baik terhadap friendly sistem yang telah dikembangkan
Perbandingan Algoritma K-Nearest Neighbor Untuk Klasifikasi Jenis Mangga Menggunakan Berdasarkan Fitur Gray Level Co-Occurrence Matric dan Fitur Warna
Authors: Rizal Fathur , Nadiyah Nadiyah
Published: February 2023

Indonesia merupakan negara dengan sumber daya manusia serta sumber daya alam yang memiliki pontesial untuk dapat membangun industri buah nusantra, serta mata pencaharian sebagian besar penduduk indonesia yakni petani. Produksi pertanian diantaranya padi, jagung dan lain-lain [1][2]. Budidaya tanaman kebun jenis buah-buahan di indonesiaa seperti alpukat, nanas, kelengkeng, pisang, mangga dan lain-lain. Sebagian besar penduduk indonesia sangat gemar menanam pohon mangga di halaman rimah atau kebun mereka. Akan tetapi dari kegemaran mereka menanam pohon mangga tidak jarang masyarakat tertipu dengan jenis mangga yang ditanam. Oleh sebab itu dibutuhkan suatu model atau metode untuk dapat mengklasifikasikan jenis mangga serta untuk mengetahui jenis mangga tersebut dapat dilihat dari ciri yang ada seperti bentuk tekstur dan warna. Terdapat beberapa metode yang telah diusulkan serta telah dikerjakan utnuk mengklasifikasikan jenis mangga, akan tetapi hasil rata-rata akurasi yang diperoleh kurang dari 80%. Dalam penelitian ini mengusulkan pendekatan menggunakan k-nearest neighbor dengan optimasi algoritma genetika serta menggunakan fitur gray level co-occurrence matrix dan fitur warna daun mangga jumlah dataset yang digunakan sebanyak 800 daun citra. Penggunaan algoritma genetika untuk optimasi berhasil meningkatkan nilai akurasi pada metode k-nearest neighbor. Akurasi tertinggi terdapat pada nilai k=3 yakni 93.50%. Sedangkan metode k-nearest neighbor tanpa menggunakan optimasi memperoleh akurasi sebesar 93.00% dengan nilai k=1.
Optimasi Peletakan Watermark pada Citra Digital Menggunakan Algoritma Genetika
Authors: Supomo Eko , Sunyoto Andi , Kurniawan Mei P
Published: February 2023

Pengolahan citra digital termasuk bagian dari ilmu komputer, banyak peneliti yang tertarik untuk meneliti watermark citra digital karena dengan adanya teknologi watermark citra digital sangat dibutuhkan. Namun pada prakteknya para peneliti kesulitan untuk menentukan letak watermark yang paling baik karena jumlah piksel atau koordinat citra digital yang sangat banyak, misalnya pada citra digital yang berukuran 512 x 512 terdapat 262.144 piksel atau titik. Untuk itu diperlukan suatu metode yang dapat menyelesaikannya, salah satunya adalah metode optimasi Algoritma Genetika (Genetic Algorithm). Pada algoritma ini terdapat beberapa tahapan yaitu: Evaluasi nilai fitnes, pemilihan individu, Kombinasi (Crossover), mutasi, populasi baru. Untuk memudahkan pemilihan individu sehingga diperoleh kromosom yang unngul maka penulis menggunakan metode seleksi Roulette Wheel Selection (RWS). Berdasarkan pemilihan piksel dari ribuan piksel, dengan metode yang dipilih penulis telah menemukan 9 titik koordinat terbaik pada citra digital pertama, 12 titik koordinat terbaik sedangkan pada citr digital ketiga ditemukan 10 titik koordinat terbaik dan titik-titik tersebut merupakan sebagai rekomendasi tempat watermark citra digital
Sistem Pakar Diagnosa Penyakit Tanaman Cabe Menggunakan Metode Forward Chaining Berbasis Web (Studi Kasus BPP Mlandingan)
Authors: Wijaya Andi , Shudiq Wali Ja'far , Purnomo Eko
Published: February 2023

Tanaman cabe (Capsicum annuum L) merupakan tanaman sayuran yang tergolong tanaman tahunan berbentuk perdu. Penyakit tanaman adalah gangguan pada tanaman yang disebabkan oleh mikro  organisme (virus, bakteri, protozoa, jamur, cacing nematoda). Permasalahan pada penelitian ini adalah minimnya pengetahuan petani dalam mendiagnosa penyakit yang sedang dialami pada tanaman cabe. Metode yang di gunakan adalah metode Forward Chaining. Metode ini digunakan sebagai sebagai salah satu teknik inferensi dalam sistem pakar ini, dikarenakan data dan fakta dalam melakukan proses penelitian telah didapatkan dan dari data atau fakta tersebut dapat dibuat sebuah sistem yang akan memberikan sebuah konklusi atau solusi berdasarkan atas sekumpulan data dan fakta tersebut. Dengan menggunakan teknik inferensi ini pula peluang dalam mendapatkan suatu konklusi yang lebih spesifik dapat dengan mudah didapatkan.tujuan dari penelitian ini adalah menghasilkan suatu sistem pakar diagnosa penyakit tanaman cabe menggunakan metode Forward Chaining berbasis web sehingga dapat membantu petani dalam mendiagnosa penyakit tanaman cabe. Model pengembangan yang digunakan pada penelitian ini adalah model waterfal, model waterfall (air terjun) artinya menyediakan pendekatan alur perangkat lunak yang terurut dimulai dari analisis, desain, pengkodean, uji sistem dan perawatan. Hasil pengujian terhadap user, dapat di simpulkan bahwa aplikasi sistem pakar diagnosa penyakit tanaman cabe menggunakan metode Forward Chaining berbasis web telah 68% baik untuk digunakan.
Optimasi Parameter Support Vector Machine Menggunakan Algoritma Genetika untuk Meningkatkan Prediksi Pergerakan Harga Saham
Authors: Sudriyanto Sudriyanto , Hidayad Rian , Ronaldo Rafsanjai Akbar , Prasetiyo Riangga Aji , Edho Wicaksono Setyo Agung
Published: February 2023

Prediksi pergerakan harga saham menjadi satu topik yang menarik terutama bagi para investor saham, dealer dan broker. Kesulitan dalam memprediksi pergerakan harga saham dikarenakan banyak faktor ketidak pastian yang terlibat seperti kinerja perusahaan, faktor ekonomi nasional maupun internasional, iklim politik dan perbedaan persepsi dari setiap orang terhadap suatu saham. Tujuan penelitian ini adalah meningkatkan hasil prediksi pergerakan harga saham. Salah satu metode yang dapat digunakan untuk memprediksi pergerakan harga saham yaitu Support Vector Machine (SVM). SVM memiliki kelemahan pada sulitnya memilih parameter terbaik dari suatu kernel termasuk parameter pinalti untuk data yang diklasifikasikan secara benar. Untuk meningkatkan akurasi dari prediksi harga saham, yang bertujuan untuk mengoptimasi algoritma SVM dengan algoritma genetika (GA) untuk mendapatkan parameter terbaik sehingga akurasi prediksi dapat ditingkatkan. Pada penelitian ini menggunakan data historis dari perusahaan PT Astra International Tbk mulai dari 2013 sampai 2021. Atribut yang digunakan pada penelitian ini yaitu (Date, Open, High, Low, Close dan Volume). Dari hasil percobaan didapat akurasi prediksi dengan metode Support Vector Machine dengan nilai Root Mean Squared Error (RMSE) sebesar 140.000 +/- 5.698 dan Squared Error (SE) sebesar 19629.215 +/- 1609.864. Sedangkan dengan metode Support Vector Machine Berbasis Algoritma Genetika dengan nilai Root Mean Squared Error (RMSE) sebesar 101.208 +/- 9.475 dan Squared Error (SE) sebesar 10323.858 +/- 1956.237. Dari hasil percobaan dapat dilihat bahwa nilai tingkat akurasi untuk prediksi pergerakan harga saham menggunakan metode Support Vector Machine Berbasis Algoritma Genetika mendapatkan hasil dengan tingkat akurasi yang lebih baik.
APLIKASI PENGOLAHAN DATA KEARSIPAN DOKUMEN ELEKTRONIK BERBASIS WEB LSP UNIVERSITAS NURUL JADID
Authors: Wijaya Andi
Published: February 2023

Arsip merupakan kumpulan dokumen yang disimpan secara sistematis karena mempunyai kegunaan agar setiap kali diperlukan dapat dengan cepat ditemukan kembali. Sistem kearsipan pada LSP Universitas Nurul Jadid selama ini masih menggunakan pengarsipan secara manual yaitu dengan menyimpan dokumen seperti, dokumen pengurus, asesor, asesi dan dokumen Tempat Uji Kompetensi (TUK) disebuah lemari penyimpan atau filling cabinet, map, rak dan lainnya sehingga dalam pencarian dokumen akan membutuhkan waktu yang lama. Selain itu sistem kearsipan pada LSP Universitas Nurul Jadid (LSP UNUJA) juga masih menggunakan pengarsipan yang mengandalkan sebuah komputer yang berperan sebagai server yang hanya dapat diakses pada saat terhubung kedalam satu jaringan lokal sehingga pengurus tidak mampu mengakses data dari luar dan harus ke kantor LSP. LSP UNUJA adalah salah satu lembaga yang berperan melakukan sertifikasi profesi mahasiswa Universitas Nurul Jadid. LSP UNUJA saat ini sedang berkembang sehingga data semakin kompleks seperti data asesor, asesi dan data TUK. Berdasarkan permasalahan yang telah diuraikan tersebut maka sangat penting adanya sebuah sistem kearsipan yang mampu menjawab segala kendala dan masalah pada LSP UNUJA. Metode kualitatif digunakan untuk pengumpulan data serta metode research and development (R&D) digunakan untuk pengembangan sistem. Penelitian ini menghasilkan Aplikasi Pengolahan Data Kearsipan Dokumen Elektronik Berbasis Web di LSP UNUJA yang dapat mempermudah proses dokumentasi dokumen LSP UNUJA.
Algoritma Decision Tree Dengan Menggunakan Pruning dan Missing Value Untuk Prediksi Kredit Macet
Authors: Inda Arifin Nur Hatima , Shudiq Wali Ja'far
Published: February 2023

Sebagai industri yang mempunyai perkambangan sangat pesat yang di ikuti dengan resiko kredit pada setiap kegiatan usaha perbankan. Kredit merupakan penghasilan utama dari sebuah perbankan dan juga merupakan sumber resiko terbesar karena sebagian besar dana operasional bank berputar dalam bentuk kredit. Proses data nasabah, data jaminan hingga pada  proses pengambilan keputusan menjadi peran penting untuk menekan dan mengurangi resiko bagi pihak pengajuan kredit. Syarat perbankan menjadi indikator pemberian pinjaman kepada nasabah agar layanan yang diberikan tepat dan tidak memberikan efek buruk pada manajemen bank , misalnya kredit macet [2]. Tujuan dari penelitian ini adalah untuk memprediksi tingkat resiko kredit yang terjadi pada sebuah perbankan. Berdasarkan beberapa metode yang telah diusulkan dan telah dilakukan prediksi kredit macet, menghasilkan nilai akurasi terendah. Dalam penelitian ini menggunakan metode pruning pada missing value dengan menerapkan Algoritma decision tree untuk prediksi kredit macet dengan jumlah dataset sebanyak732 record dengan 11 variabel dan terdapat data yang tidak lengkap (missing value) pada salah satu variable dataset kredit macet. Pada pengujian algoritma decision tree dengan metode pruning berhasil meningkatkan nilai akurasi menjadi 75.80%, sedangkan algoritma decision tree tanpa metode pruning hasil akurasinya adalah 72.61%.
A gravity study of silicic domes in the Krafla area, N-Iceland
Authors: Ágústsdóttir Thorbjörg , Guðmundsson Magnús Tumi , Einarsson Páll
Published: February 2023

Silicic rocks in Iceland are generally associated with central volcanoes and are often emplaced as domes on or around caldera rims. Some of these domes were formed subglacially while others were erupted under ice-free conditions. A gravity survey was carried out in the area of Krafla in 2007 and 2008 to determine the mean bulk densities of three silicic domes; essential data for meaningful modelling of the emplacement of cryptodomes and lava domes. Such data are scarce. Profiles were measured over three formations: Hlíðarfjall, made of rhyolite, 310 m high, 2 km long and formed under ice 90 000 years BP, Hrafntinnuhryggur, made of rhyolite, 80 m high, 2.5 km long and formed subglacially 24 000 years BP and Hraunbunga made of dacite, 125 m high and 1.8 km long, formed under ice-free conditions 10 000 years BP. Mean bulk density for each formation was obtained by the Nettleton method. Mean bulk density and volumes obtained were; Hlíðarfjall: 1600–1800 kg/m³, 0.143±0.014 km³; Hrafntinnuhryggur: 1575–1875 kg/m³, 0.021±0.002 km³; Hraunbunga: 1750–1775 kg/m³, 0.040±0.004 km³. The results show that all the domes have low densities, reflecting both low grain-density and high porosity. The density values are significantly lower than those of the surroundings, creating a density contrast possibly sufficient to drive the ascent of silicic magma. Furthermore, results from forward gravity modelling demonstrate that these formations are neither buried by younger volcanic eruptives nor are any roots detected. The domes studied were therefore emplaced by a dike to the surface.
Paleomagnetic studies on the lava pile between Skálavík and Álftafjörður, Northwest Iceland
Authors: Kristjánsson Leó
Published: February 2023

This paper focuses on the lava pile in the westernmost part of the south coast of the Ísafjarðardjúp fjord in the Northwest peninsula of Iceland, between Skálavík and Álftafjörður. New laboratory measurements on the paleomagnetism of over 60 lava flows in four profiles are utilized in the completion of a tentative polarity column for a composite section of 3.4 km thickness along Ísafjarðardjúp. The magnetic results which among other things document the occurrence of several excursions of the geomagnetic field, are consistent with other available data from the area. They also strengthen correlations with a composite section running south from Skálavík to Breiðafjörður. Some relevant previous studies on the Northwest peninsula are reviewed, with emphasis on the question whether the presence of the oldest lignite-containing sediments there is related to major volcano-tectonic events. Judging from the thickness of polarity zones, the rate of buildup of lavas below these sediments seems to have been of similar order of magnitude as elsewhere in Iceland.
Erratum: Removing the ice cap of Öræfajökull central volcano, SE-Iceland: Mapping and interpretation of bedrock topography, ice volumes, subglacial troughs and implications for hazards assessments
Authors: Magnússon Eyjólfur , Pálsson Finnur
Published: February 2023

In the paper ‘Removing the ice cap of Öræfajökull central volcano, SE-Iceland: Mapping and interpretation of bedrock topography, ice volumes, subglacial troughs and implications for hazards assessments’ by Magnússon et al. (2012) published in vol. 62 of Jökull, a small part of the Radio Echo Sounding (RES) data used to constrain the subglacial topography included a scaling error resulting in 20\% underestimate of the ice thickness. This only applies to data acquired in 2012 but not data acquired in 2009 or earlier (see Figure 1). The receiver used in 2009 recorded at 100 MHz, whereas in 2012 an upgraded receiver was used sampling at 80 MHz. Unfortunately the MATLAB code used for post-processing of the data was inadequately updated to read the data from the upgraded receiver resulting in this scaling error.
Jöklabreytingar (Glacier variations) 1930–1970, 1970–1995, 1995–2012 og 2012–2013
Authors: Sigurðsson Oddur , Einarsson Bergur
Published: February 2023

Jöklaárið 2012–2013 lagðist í dúr við fyrri ár á þessari öld með hlýindum og var fremur úrkomusamt. Veturinn lagðist líkt og 2012 snemma að, einkum norðanlands og kom það aftur í veg fyrir mælingar á sumum jökulsporðum.
Afkoma íslenskra jökla 2021–2022 (Mass balance measurements)
Authors: Gunnarsson Andri , Pálsson Finnur , Þorsteinsson Þorsteinn , Hannesdóttir Hrafnhildur , Brynjólfsson Skafti
Published: February 2023

Jökulárið 2021–2022 var afkoma mæld á 123 stöðum á stærri jöklum landsins. Mælt var í 67 punktum á Vatnajökli (frá 1992), 20 punktum á Hofsjökli (frá 1988), 25 punktum á Langjökli (frá 1997), fjórum á Mýrdalsjökli (frá 2001), fimm í Tindfjöllum, og tveimur á Eyjafjallajökli. Einnig voru þrír jöklar á Tröllaskaga mældir í 10–20 mælipunktum hver (mismargir mælipunktar á hverjum jökli). Afkoma hefur verið mæld frá árinu 2008 á Búrfellsjökli, en skemur annars staðar. Vetrarafkoma er metin með mælingu rúmmáls og massa kjarna í gegnum vetrarsnjóinn, en sumarafkoma útfrá aflestri á lengd stiku eða vírs sem komið er fyrir í borholu að vori. Um þessar mundir má líta svo á að nýtt jökulár hefjist um 1. október, enda eru þá fyrstu snjóar yfirleitt fallnir á jökla landsins. Oftast er nú farið til haustmælinga á leysingu um það leyti. Ákoma vetrarins er svo mæld í vorleiðöngrum um mánaðamótin apríl/maí. ...
Bylgjubrotsmælingaferð á Mýrdalsjökli í júní 1991 (Mýrdalsjökull refraction measurements in June 1991)
Authors: Ólafsson Halldór
Published: February 2023

Mér var ætlað að aðstoða Bryndísi Brandsdóttur við útsetningu jarðskjálftamæla til bylgjubrotsmælinga á Mýrdalsjökli um miðjan júní 1991, en meiningin með þeim leiðangri var að kanna hvort kvikuhólf væri undir Kötlu. Þannig var að því staðið að sprengja átti í vötnum norðan og sunnan Mýrdalsjökuls og dreifa skjálftamælum á línur yfir jökulinn. Karl Ingólfsson sótti mig heim kl. 21:30 þann 18. júní á nýja HiLúxinum (PM 932) og var hann með vélsleðakerruna í eftirdragi. Það var búið að hækka bílinn og setja undir hann 36" dekk til að auðvelda honum akstur í snjó. Við komum við hjá Karli Pálssyni og fór hann með okkur austur. Bryndís hafði farið á Toyotu Raunvísindastofnunar með 15 skjálftamæla og með henni fór Brandur litli sonur hennar. Aðalbækistöðin var í Vík í Mýrdal og komum við þangað upp úr miðnætti. Þar fengum við kaffisopa hjá Bryndísi en hún leigði íbúð við hliðina á símstöðinni hjá þeim heiðurshjónum Katrínu og Guðgeiri. Ég tók bensín fyrir vélsleðana og annan búnað okkar en Bryndís ætlaði að forrita skráningartæki skjálftamælanna áður en hún kæmi upp á jökul. ...
MARKET ANALYSIS OF MERGERS AND ACQUISITIONS BY BRAZILIAN EDUCATIONAL GROUPS
Authors: FERREIRA SERGIO MORENO LOPES , SINDEAUX RONEY VERSIANI
Published: February 2023

O presente estudo é uma análise documental dos fatos relevantes que marcaram o processo mercantilista na expansão das IES (Instituições de Ensino Superior) privadas no Brasil. O objetivo é demonstrar que foram criados grandes oligopólios educacionais privados, e a formação de holdings de capital aberto que adquirem IES menores, acabou causando uma possível depreciação da qualidade do ensino, uma vez que as concepções educacionais dessas instituições nunca obtiveram o máximo mensurável de qualidade (nota 5 no Ministério da Educação e Cultura - MEC). Além disso, também levantamos a hipótese de que o oligopólio das IES brasileiras utiliza as fusões e aquisições como forma de sobrevivência, mais do que de expansão.
INSPEÇÃO DE FACHADAS COM VEÍCULO AÉREO NÃO TRIPULADO (VANT)
Authors: Pereira Valdir Moraes
Published: February 2023

Novas tecnologias têm sido usadas em todas as áreas do conhecimento visando facilitar as atividades que antes eram realizadas de forma tradicional. No Brasil, o projeto de fachadas ainda não é muito difundido e, na prática, a inspeção após a execução é realizada com o uso de binóculos pelo engenheiro responsável pela obra. Outra maneira de inspeção é com o uso de balancins, o que torna a atividade perigosa e com a necessidade de treinamentos para trabalho em altura. No entanto, algumas técnicas inovadoras têm sido usadas para essa finalidade, como o uso de câmeras térmicas e uso de veículos aéreos não-tripulados (VANTs). Estas técnicas buscam melhorar a eficiência da inspeção e possibilita que a avaliação seja realizada por meio de análise de imagens e com o uso de tecnologias mais sofisticadas. Nesse sentido, o presente trabalho tem o objetivo de apresentar a inspeção de fachadas com VANT de duas edificações em construção na região metropolitana de São Paulo-SP, avaliando os principais problemas encontrados e as vantagens e desvantagens do seu uso para a inspeção. As inspeções foram realizadas por meio de análise visual das imagens geradas pelo VANT. Observou-se que os principais problemas encontrados nas fachadas foram na textura e/ou revestimento aplicado como no final da fachada, bem como problemas na pintura e em juntas. O uso do VANT mostrou-se promissor, principalmente, devido à rapidez para realização das capturas de fotos. As principais desvantagens observadas foram a troca de baterias do VANT que pode prejudicar o tempo de inspeção e o distanciamento entre o VANT e a fachada que pode prejudicar a visualização de pequenas patologias.
Deciphering the microbial community structures and functions of wastewater treatment at high-altitude area
Authors: Zhu Yuliang , Liu Yucan , Chang Huanhuan , Yang Hao , Zhang Wei , Zhang Yanxiang , Sun Hongwei
Published: February 2023

Introduction: The proper operation of wastewater treatment plants is a key factor in maintaining a stable river and lake environment. Low purification efficiency in winter is a common problem in high-altitude wastewater treatment plants (WWTPs), and analysis of the microbial community involved in the sewage treatment process at high-altitude can provide valuable references for improving this problem.

Methods: In this study, the bacterial communities of high- and low-altitude WWTPs were investigated using Illumina high-throughput sequencing (HTS). The interaction between microbial community and environmental variables were explored by co-occurrence correlation network.

Results: At genus level, Thauera (5.2%), unclassified_Rhodocyclaceae (3.0%), Dokdonella (2.5%), and Ferribacterium (2.5%) were the dominant genera in high-altitude group. The abundance of nitrogen and phosphorus removal bacteria were higher in high-altitude group (10.2% and 1.3%, respectively) than in low-altitude group (5.4% and 0.6%, respectively). Redundancy analysis (RDA) and co-occurrence network analysis showed that altitude, ultraviolet index (UVI), pH, dissolved oxygen (DO) and total nitrogen (TN) were the dominated environmental factors (p < 0.05) affecting microbial community assembly, and these five variables explained 21.4%, 20.3%, 16.9%, 11.5%, and 8.2% of the bacterial assembly of AS communities.

Discussion: The community diversity of high-altitude group was lower than that of low-altitude group, and WWTPs of high-altitude aeras had a unique microbial community structure. Low temperature and strong UVI are pivotal factors contributing to the reduced diversity of activated sludge microbial communities at high-altitudes.
Safety and efficacy of direct oral anticoagulants in bioprosthetic valves: A systematic review and meta-analysis
Authors: Bakr Lubna , Elsayed Ahmed , Saleh Omar , Abdalraouf Mostafa , Ng Ghulam André , Ibrahim Mokhtar
Published: February 2023

Background

Direct oral anticoagulants are efficient alternatives to vitamin K antagonists. There is little evidence regarding their use in patients who underwent bioprosthetic valve replacement whether surgically or through a transcatheter approach and have another indication of anticoagulation. Trials have compared different members of the DOACs family to VKAs and showed that they were at least non-inferior to VKAs with regard to safety and efficacy. However, this is still controversial. Our meta-analysis aims at providing a clearer view of their future use in this subgroup of patients.

Methods

PubMed and Cochrane were searched for randomised clinical trials and observational studies. Bleeding, stroke, and all-cause mortality were the outcomes of interest.

Results

Ten papers with a total of 4,088 patients were included. Our meta-analysis revealed no significant differences between the incidence of bleeding between DOACs and warfarin (16% vs. 17%, OR = 0.94, 95% CI [0.56–1.57], p = 0.81, I2 = 81%). No statistical difference was found in stroke between both groups (2.5% vs. 3.3%, OR = 0.75, 95% CI [0.41–1.38], p = 0.36, I2 = 35%). All-cause mortality was not statistically significant between both groups (9.2% vs. 13.7%, OR = 0.85, 95% CI [0.68–1.07], p = 0.16, I2 = 56%). Interestingly, subgroup analysis of randomised controlled trials and prospective studies favoured DOACs with lower risks of both bleeding and stroke.

Conclusion

Direct oral anticoagulants appear to be at least as safe and effective as VKAs in patients with bioprosthetic valves and another indication of anticoagulation. There could be potential benefit from the use of DOACs; however, further evidence is required.

Systematic Review Registration

https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021222146, identifier CRD42021222146.
Estimates of volcanic mercury emissions from Redoubt Volcano, Augustine Volcano, and Mount Spurr eruption ash
Authors: Kushner D. Skye , Lopez Taryn M. , Wallace Kristi L. , Damby David E. , Kern Christoph , Cameron Cheryl E.
Published: February 2023

Ash is a potential sink of volcanically sourced atmospheric mercury (Hg), and the concentration of particle-bound Hg may provide constraints on Hg emissions during eruptions. We analyze Hg concentrations in 227 bulk ash samples from the Mount Spurr (1992), Redoubt Volcano (2009), and Augustine Volcano (2006) volcanic eruptions to investigate large-scale spatial, temporal, and volcanic-source trends. We find no significant difference in Hg concentrations in bulk ash by distance or discrete eruptive events at each volcano, suggesting that in-plume reactions converting gaseous Hg0 to adsorbed Hg2+ are happening on shorter timescales than considered in this study (minutes) and any additional in-plume controls are not discernable within intra-volcanic sample variability. However, we do find a significant difference in Hg concentration of ash among volcanic sources, which indicates that volcanoes may emit comparatively high or low quantities of Hg. We combine our Hg findings with total mass estimates of ashfall deposits to calculate minimum, first-order Hg emissions of 8.23 t Hg for Mount Spurr (1992), 1.25 t Hg for Redoubt Volcano (2009), and 0.16 t Hg for Augustine Volcano (2006). In particular, we find that Mount Spurr is a high Hg emitting volcano, and that its 1992 particulate Hg emissions likely contributed substantially to the global eruptive volcanic Hg budget for that year. Based on our findings, previous approaches that use long-term Hg/SO2 mass ratios to estimate eruptive total Hg under-account for Hg emitted in explosive events, and global volcanogenic Total Hg estimates need revisiting.
Non-equilibrium effect modeling and particle velocity estimation for particulate flow in porous media
Authors: Jin Yi , Zhang Zenghua , Moghanloo Rouzbeh Ghanbarnezhad
Published: February 2023

The complex dynamics of fluid and particles flowing through pore space demands some relaxation time for particles to catch up with fluid velocity, which manifest themselves as non-equilibrium (NE) effects. Previous studies have shown that NE effects in particle transport can have significant consequences when relaxation time is comparable to the characteristic time associated with the fluid flow field. However, the existing models are lacking to account for this complicated relation between particles and fluid. In this paper, we adapt the general form of the harmonic oscillation equation to describe NE effects in the particulate flow system. The NE effect is evaluated by solving coupled mass balance equations with computational fluid dynamic (CFD) techniques using COMSOL Multiphysics®. A simplified straight-tube model, periodic converging–diverging tube model, and SEM image of a real pore network are applied in NE analyses. The results indicate that the time variation of the NE effect complies with the theory of stability. Two key parameters of the oscillator equation are amplitude (A) and damping ratio (ζ), where the former represents the magnitude of NE and the latter is an indication of flow path geometry. The velocity equations for particle transport in different flow path geometries are derived from the proposed NE equation, offering a quick estimation of particle velocity in the particulate flow. By conducting simulation on the SEM image of a real pore structure, the equivalent radii of the pores where particles move through were obtained. The outcome of this work can shed light on explaining the complex NE effects in porous media. The generalized equation to model NE can help temporarily decouple particle transport equations from fluid equations, facilitating much advanced particulate flow modeling problems in the large-scale problems.