bluuebunny/crossref_metadata_2025 huggingface dataset:
Karşıt Akışlı Ranque– Hilsch Vorteks Tüpünün Makine Öğrenmesi Metotları ile Performans Analizi
Authors: KORKMAZ Murat , DOĞAN Ayhan , KIRMACI Volkan
Published: January 2024

Bu çalışmada, basınçlı oksijen gazı kullanarak aynı anda hem soğutma hem de ısıtma yapabilen ve kontrol vanası dışında hareketli parçası bulunmayan basit borudan meydana gelen Karşıt Akışlı Ranque-Hilsch Vorteks Tüp (KARHVT) kullanılmıştır. KARHVT’nün tasarımında boru 7 mm iç çapında ve 100 mm gövde uzunluğunda imal edilmiştir. KARHVT’ünde, nozul olarak pirinç, çelik, alüminyum ve polyamid üretilen 2, 3, 4, 5 ve 6 orfisli malzemesi kullanılmıştır. Yapılan deneylerde sıcak akışkan tarafında bulunan kontrol vanası tam açık konumda bırakılmış olup, giriş basıncı ilk 150 kPA olarak ayarlanmıştır. Daha sonra 50 kPa aralıklarla 700 kPa kadar veriler alınmıştır. KARHVT’de çıkan soğuk akışın sıcaklığı (Tsoğ) ve çıkan sıcak akış sıcaklığı (Tsck) ile arasındaki fark (ΔT) cinsinden bulunarak KARHVT’ün performansı optimizasyonu yapılmıştır. KARHVT’nün performansının optimizasyonunu, makine öğrenimi metotlarından Lineer Regresyon (LR), Regresyon Ağaçları (RA) ve Ağaç Toplulukları (AT) yöntemleri kullanılarak literatürdeki eksikliğin tamamlanması amaçlanmıştır. Çalışmada makine öğrenimi metotlarının her birinin analizi için, tüm verinin %80’i eğitim verisi, tüm verinin %20’si ise test verisi olarak kullanılmıştır. Çalışmanın sonunda eğitilen modeller sonunda gerçekleşen tahmin sonuçları ile gerçek deney sonuçları karşılaştırılarak yorumlanmıştır.
Alteridad, introspección, autorreconocimiento en las obras Bruna soroche y los tíos y la pasión según G.H.
Authors: Viñamagua-Quezada Glenda , Puma-Torres Paúl
Published: January 2024

En este trabajo de investigación se realizó un análisis crítico e interpretativo de las obras Bruna, soroche y los tíos de Alicia Yánez Cossío y La pasión según GH de Clarice Lispector, se tomó como punto de convergencia el tema de la imagen como un espacio donde la mirada del otro es determinante en la construcción de la identidad. Para el desarrollo de esta investigación se tomó la metodología propuesta por la tematología y los imagotipos. En el concerniente al sustento teórico se partió de los postulados de Córdova 2016, Boadas 2016 y Sánchez 2005, quien se basa en la propuesta teórica de Moura sobre los tres aspectos de la imagen. De esta manera se determinó como ejes temáticos la concepción religiosa en la impostación de la identidad y la etnia como un constructo social producto de la mirada de centro y periferia. Este análisis, que se sustenta en la tradición hermenéutica, tiene por objetivo analizar la construcción de la identidad a partir de la mirada del otro y como esta idea se perpetúa y se concibe como verdadera a partir de la trascendencia de la imagen y de la simbología religiosa, como ocurre en la novela Bruna Soroche y los tíos. Mientras que en la obra La pasión según GH, la imagen se asume como un detonante del autorreconocimiento a través de la introspección que provoca la mirada subalterna.  El aporte de esta investigación radica en determinar cómo desde la ficción se crean espacios narrativos donde existe una relación entre la mirada y la imagen en la construcción de la identidad.
Obtención de colorantes vegetales como recurso didáctico en los laboratorios de biología
Authors: Pozo-Zapata Raúl , Barahona-Ibarra Adriana , Tigasig-Urcuango Jonathan , Vivar-Toapanta Marxuri
Published: January 2024

Los colorantes naturales son descubrimientos milenarios que se utilizaban desde la Grecia antigua para dar color a numerosos objetos como las esculturas, pero que han perdido su utilidad siendo sustituidos por los colorantes artificiales que pueden resultar dañinos para la salud. El propósito de este estudio es obtener un colorante vegetal natural a partir de la flor de jamaica empleando como solvente el vinagre, para utilizarlo como recurso didáctico en las prácticas experimentales del laboratorio de Biología. La hipótesis del estudio indica que se puede obtener un colorante útil de los cálices de la flor de jamaica demostrando su funcionamiento en las observaciones experimentales en las prácticas de mitosis y meiosis. El método empleado fue descriptivo y de observación, ya que se realizaron actividades experimentales aplicando el reactivo y el colorante obtenidos. Los colorantes y reactivos que se requieren para dichas prácticas son de alto costo y, los que se obtuvieron como resultado de esta investigación fueron de bajo costo, la orceína acética en el mercado tiene el valor de $31,3 los 60 ml, mientras que en la investigación realizada el costo del pigmento fue $0.76 los 60 ml y el reactivo que reemplazó al ácido clorhídrico que en el mercado cuesta $6 los 500 ml, el reactivo obtenido tuvo un valor de $2.36 los 500 ml; los productos obtenidos tuvieron un funcionamiento similar a los que se adquieren en la industria. Los resultados aportan con recursos que permitirán mejorar la calidad de la enseñanza– aprendizaje en el laboratorio de Biología.
Portrait of Rural Social Studies Teachers (and Their Students)
Authors: Allen Amy , Williams Thomas , Hicks David
Published: January 2024

In this study, we first provide a snapshot of key demographics and characteristics of social studies teachers in a rural setting based the 2017-2018 National Teacher and Principal Survey (NTPS) restricted-use data file from the National Center for Educational Statistics (NCES), administered by the Institute for Education Sciences (IES). Second, we look at potential implications based on specific insights from the data, including recognition of the change happening in the demographics of rural communities and a need for sustained PD about teaching students with diverse identities.
Competence Learning Brought to Life
Authors: Picardo Kathryn
Published: January 2024

As a Fulbright Fellow in Finland, I researched Finnish pedagogical strategies and systemic norms that implement competence based learning. In working with classroom teachers, school administrators, and university experts, I learned how Finnish teachers are responding to new curriculum directives, as well as structural barriers that make teaching towards competences difficult. This paper is an abridged recollection of my findings, with specific emphasis on tangible strategies, norms and ideas that American teachers can implement in their classrooms immediately.
The Activity Test of Dewandaru Fruit (Eeugenia uniflora L.) in Trachea of Male Mice (Mus musculus L.) Which Exposed to Cigarette Smoke
Authors: Antari Ni Wayan Sukma
Published: January 2024

Smoking has a serious negative impact on health because cigarettes contain harmful chemical compounds. To combat these negative effects, using natural antioxidants such as Dewadaru fruit has become the research focus. Dewandaru contains high antioxidants, namely flavonoids, anthocyanins, saponins, and tannins, which can fight free radicals in the body. The trachea is an air channel between the larynx and bronchi. To identify the activity test of dewandaru fruit (Eugenia uniflora L.) in the trachea of male mice (Mus musculus L.) exposed to cigarette smoke. This study employed true experimental di laboratory with post-test only control group design, probability sampling. The data were analyzed by using Shapiro Wilk and followed by the ANOVA test and Duncan's test. The finding showed that administering a Dewadaru fruit filter could maintain the histopathology of the male mice trachea exposed to cigarette smoke (P<0.05). Dewandaru fruit filter (Eugenia uniflora L.) has activity in the trachea exposed to cigarette smoke among male mice. Using a Dewadaru fruit filter also affects the presence of cilia, goblet cells, epithelial height, and lumen diameter in the trachea of male mice.
Analisis Historis Ruang Budaya Saleh Danasasmita, 1973-1986
Authors: Nugraha Muhamad Satria , Dienaputra Reiza D. , Mulyadi Raden Muhammad
Published: January 2024

This research is entitled Historical Analysis of Cultural Space of Saleh Danasasmita (1973-1986). This analysis produces a picture of Saleh Danasasmita's living environment from an internal and external point of view. The purpose of this study is to analyze the factors that influence Saleh Danasasmita's thinking, especially from the socio-cultural environment and educational environment as Saleh Danasasmita's cultural space. This research will also reveal the ideas of Saleh Danasasmita about Sundanese culture. This research uses historical research methods consisting of heuristics, criticism, interpretation, and historiography. Saleh Danasasmita is a figure from Sunda and has an interest in analyzing Sundanese history and culture. His closeness with other Sundanese researchers led to his interest in focusing on research on Sundanese history, especially during the Sundanese kingdom. His ideas and analysis of Sundanese involve his basic knowledge as a Sundanese along with other diverse sources. The tendency of his thinking was to preserve Sundanese values that had existed since the time of the kingdom.Penelitian ini berjudul Analisis Historis Ruang Budaya Saleh Danasasmita (1973-1986). Analisis ini menghasilkan gambaran mengenai lingkungan kehidupan Saleh Danasasmita dari sudut pandang internal dan eksternal. Tujuan dari penelitian ini adalah menganalisis faktor-faktor yang mempengaruhi pemikiran Saleh Danasasmita terutama dari lingkungan sosial budaya dan lingkungan pendidikan sebagai ruang budaya Saleh Danasasmita. Penelitian ini juga akan mengungkap gagasan dari Saleh Danasasmita mengenai kebudayaan Sunda. Penelitian ini menggunakan metode penelitian sejarah yang terdiri dari heuristik, kritik, interpretasi, dan historiografi. Saleh Danasasmita merupakan tokoh yang berasal dari Sunda dan mempunyai ketertarikan untuk menganalisis sejarah dan budaya Sunda. Kedekatannya dengan peneliti Sunda lainnya menimbulkan ketertarikannya untuk fokus dalam penelitian mengenai sejarah Sunda khususnya masa kerajaan Sunda. Gagasan dan analisis dari kesundaannya melibatkan pengetahuan dasarnya sebagai orang Sunda disertai sumber-sumber lainnya yang beragam. Tendensi dari pemikirannya adalah untuk melestarikan nilai-nilai Sunda yang telah ada sejak masa kerajaan.
PARENTS ARE NOT BORN, THEY BECOME.EXPERIENCE OF THE REPRODUCTIVE LIMIT AND THE EDUCATIONAL DIMENSION IN PARENTING, BETWEEN PMA AND ADOPTION
Authors: Lorenzini Stefania
Published: January 2024

Gli indicatori demografici dell’Istat mostrano come la natalità in Italia sia “al minimo storico” e la popolazione residente in continuo calo. Eppure, la popolazione mondiale aumenta a ritmo incessante. Da questo si potrebbe dedurre l’irrilevanza della decrescita italiana nella dimensione planetaria. D’altra parte, però, da un punto di vista psicopedagogico, alla denatalità nostrana deve essere volta un’attenzione mirata, per l’intenso dolore che spesso accompagna le difficoltà riproduttive. La denatalità non sempre infatti deriva dalla scelta di non avere figli, e il desiderio di genitorialità si evidenzia anche nel significativo ricorso alla PMA e all’adozione, nazionale e internazionale. La ricerca Genitori non si nasce, si diventa evidenzia le difficoltà che molti affrontano per soddisfare il desiderio di genitorialità e indaga il ruolo da esse giocato nell’esperienza genitoriale di coppie che si sono rivolte alla PMA e/o all’adozione. Il contributo offre i primi esiti della ricerca.
Integration of renewable energy in industrial operations: experiences from Canada, USA, and Africa
Authors: Onyinyechukwu Chidolue  , Adetomilola Victoria Fafure  , Valentine Ikenna Illojianya  , Bright Ngozichukwu  , Cosmas Dominic Daudu  , Kenneth Ifeanyi Ibekwe
Published: January 2024

This research paper explores integrating renewable energy into industrial operations, drawing insights from experiences in Canada, the United States, and various African nations. Against a global imperative to transition towards sustainable energy sources, the study delves into this transformative process's economic, environmental, and technological dimensions. The economic implications encompass a detailed analysis of upfront capital costs, return on investment, and broader considerations such as job creation and market competitiveness. Environmental impacts, including reducing greenhouse gas emissions and improving air and water quality, underscore the transformative potential of renewable energy integration. The technological landscape, marked by innovations in renewable energy technologies and energy storage solutions, offers opportunities for industries to embrace cleaner and more efficient energy practices. However, challenges related to intermittency, grid integration, and technological risks necessitate strategic planning. Barriers and challenges, ranging from regulatory uncertainties to social acceptance issues, are examined, emphasizing the complexities of the transition. The conclusion emphasizes the need for a holistic and strategic approach, including stable policies, financial mechanisms facilitating access to capital, and initiatives promoting awareness.
Risk factors of acute stress disorder after emergency cesarian section in Mahajanga
Authors: H. A. Bakohariliva  , M. F. M. Ramarokoto  , H. A. Razakandrainy  , R. Randrianambinina  , E. N. A. Raobelle  , D. K. Andrianarimanana  , B. H. Rajaonarison  , A. Raharivelo
Published: January 2024

Introduction: Emergency caesarean section is decided when vaginal delivery is not possible, in order to save the mother and her child. The objective of our study was to determine the risk factors for the occurrence of an acute stress disorder after an emergency cesarean section. Methods: We conducted a descriptive and analytical prospective study over a period of 3 months from September to December 2020, at the Mother-Child Center of the Universitary Hospital Pzaga Androva Mahajanga, in Madagascar. Results: The practice rate of caesarean section was 44.66% with a predominance of emergency caesarean section in 65% of cases compared to planned caesarean section (34.4%). These emergency caesareans were performed more in young parturients (p=0.001), nulliparous (p=0.005) and with a low level of education (p=0.016). The Acute Stress Disorder was found only and significantly in emergency caesareans in 15.3% of cases than planned caesareans with p-value=0.022 (OR=1.620 and CI: [1365-1.923]. The history of a traumatic event (p=0.004) and the perception of a negative experience of the cesarean section (p<0.001) were the determining factors significantly associated with the occurrence of the Acute Stress Disorder after emergency cesarean section. Conclusion: The urgency of the caesarean section would be a risk factor for acute stress disorder. A psychological intervention in the immediate postpartum would be an asset in the care of women undergoing caesarean emergency.
Retrospective evaluation of epidemiological and clinical data of patients diagnosed with vitiligo in our outpatient clinic
Authors: Mert Baran  , Alper Alyanak  , İlgül Bilgin
Published: January 2024

Objective: It was aimed to evaluate retrospectively the epidemiological and clinical data of patients who applied to our clinic and were diagnosed with vitiligo. Epidemiological and clinical evaluation guide the progression, choice of treatment, and diagnosis of the comorbidities of the disease. Methods: 327 patients evaluated as non-segmental vitiligo were included in the study. Demographic characteristics of the patients (age and gender), age at onset of vitiligo, treatments used for vitiligo, clinical type of vitiligo, location of lesions, and accompanying autoimmune thyroid disease data were evaluated. Results: Of 327 patients, 169 (51.7%) were male and 158 (48.3%) were female. The male/female ratio was found to be 1,1:1. The mean age of the patients was 37.26±18.07 years, and the mean age according to gender was 37.44±18.19 years in females and 37.08±18 years in males. The mean age of onset of the disease was 29.17±15.79 years, and the mean age of onset by gender was 29.13±16.46 years in females and 29.2±15.15 years in males. Regarding onset of the disease, 54% of the patients were <30 years old, and 46% of the patients were 30 years or older. Generalized vitiligo (58.8%) and acrofacial vitiligo (29.9%) were the most common clinical types. Head and neck (68.9%) and extremities (64%) were the most common locations of the lesions. Concomitant autoimmune thyroid disease was seen in 13.5% of the patients. Accompanying autoimmune thyroid disease according to gender was 19.5% in females and 7.4% in males, and there was a statistically significant difference between the groups. It was observed that 89.5% of the patients received treatment for vitiligo, and 10.5% did not receive any treatment. The most commonly used treatments were found to be topical treatment (76.1%) and topical treatment+phototherapy (14.6%). Conclusion: The epidemiological and clinical characteristics of the patients in our study were similar to other studies in the literature. Concerning the highest prevalence of generalized vitiligo in our study, phototherapy and/or systemic therapy use should have been considered when their use was indicated, and factors precluding their more widespread use could be investigated in other studies.
PENGGUNAAN MEDIA FILM ANIMASI UNTUK MENINGKATKAN KOSA KATA PADA ANAK USIA DINI
Authors: Widiyaningrum Novita , Wulandari Fitrianti , Masturoh Umi
Published: January 2024

Tujuan penelitian ini untuk meningkatkan kosa kata anak usia dini pada anak taman kanak-kanak Aisyah 3 Sidoarjo dengan penggunaan media visual. Jenis penelitian ini menggunakan Penelitian Tindakan Kelas dengan jumlah 11 siswa. Pada peneitian ini untuk teknik pengumpulan data menggunakan observasi aktivitas guru, aktivitas siswa dan tes. Teknik analisis data dengan hasil pengamatan serta hasil tes siswa secara individu. Penelitian ini dilakukan 3 siklus, siklus I diperoleh rata-rata guru sejumlah 2,75 dengan jumlah persentase 68,75%, pada siklus II memperoleh rata-rata 3,7 dengan jumlah persentase 92% dan pada siklus III meningkat dengan memperoleh rata-rata 4 dengan jumlah persentase 100%. Aktivitas siswa pada siklus I jumlah rata-rata yang diperoleh sebesar 2,7 dengan jumlah persentase 66%, pada siklus II diperoleh rata-rata 3,2 dengan jumlah persentase sebesar 79% dan meningkat pada siklus III dengan perolehan rata-rata 4 dan jumlah presentase 100%. Sedangkan hasil tes lisan rata-rata siswa memperoleh 2,77 dan perolehan presentase sebesar 69,25%, pada siklus II sebesar sebesar 3,10 dan perolehan presentase sebesar 77,5%. Dan meningkat pada siklus III perolehan rata-rata siswa 3,63 dan perolehan presentase sebesar 90,75%.Dapat disimpulkan dari hasil diatas, bahwa dengan penggunaan media video dapat meningkatkan kosa kata anak usia dini.
Anggun Pranessia Anggrasari, S.K PARENT CARE PATTERNS WITH PICKY EATING BEHAVIOR IN PRE-SCHOOL AGE
Authors: Anggrasari Anggun Pranessia
Published: January 2024

Pre-school age children are a time when children need adequate nutrition for children's growth and development. This is just the opposite of eating behavior in children. At that age, parents often experience difficulties in feeding. A son has been able to choose the type of meal 's what you want to consume or often (picky eating) where children can refuse to eat given, mealtime be long until more than 30 minutes, or the child will only eat certain food-only. One of the efforts to overcome the problem of picky eating in children is to apply parenting in every child's life. The purpose of this study was to identify the relationship between parenting style and picky eating behaviorin pre-school age children at TK Bahtera Mojokerto. Researchers used a correlation design with a sample size of 60 parent respondents. The instruments used were the parenting style questionnaire and the picky eating behavior questionnaire which was adapted from previous research. The results of the study using the k chi square statistical test showed a p-value of 0.001, which means that there is a relationship between parenting styles and picky eating behavior in pre-school children. The hope is that by implementing proper parenting styles from an early age, it can make children's eating habits become regular and in accordance with the Nutritional Adequacy Rate needed by preschoolers.
Toga Garden Cultivation (Plants Drug Family) in Sukobendu Village, Mantup District, Lamongan
Authors: Putut Wijonarko Gilang , Asmawati Siti Nor
Published: January 2024

In frame support development potency resource rural in Village Sukobendu in particular Hamlet Krajan 2, utilization And management environment can done with planting TOGA. Purpose of activity This is for increase knowledge And Skills inner society cultivating a garden TOGA. Method Which used in this activity is application steps which is implemented in cultivation park TOGA. devotion This face problem form lack of knowledge about caring for TOGA, so that solution Which offered is delivery about method nurse TOGA at a time demonstrate steps in planting TOGA. And results Which achieved on activities this gained a lot benefit like give knowledge about efficacy from a number of TOGA Which There is around public, method planting toga Which Good with practice making park TOGA Which can be utilized public around And method processing TOGA. Many kinds of solution Which offered is expected to be able overcome problem Which in facing by devotion.
ENTREPENEUR KELOMPOK PEREMPUAN FILLET IKAN DI TELUK BETUNG TIMUR BANDAR LAMPUNG
Authors: Asmaria Asmaria , Astuti Hesti Widi , Dewi Ade Sandra
Published: January 2024

Entreprenur di teluk betung sudah berjalan tetapi hanya sebatas untuk menghasilkan uang, belum dilakukan dengan baik. Keberadaan usaha pengolahan ikan di Teluk Betung Timur yang dilakukan oleh warga yang tinggal diwilayah itu, selain  memberikan kontribusi ekonomi pada keluarga, juga menciptakan stuktur ekonomi yang kuat dan kokoh khususnya kontribusi terhadap perekonomian kota Bandar Lampung. Usaha pengolahan ikan ijuga tidak lepas dari peran aktif kaum perempuan, potensi kaum perempuan sangat penting dalam kegiatan sosial ekonomi dan modal dasar dalam pembangunan. Untuk itu perlu mengetahui bagaimana Peranan perempuam dalam kelompok usaha pengolahan ikan  yang dilakukan di Teluk Betung Timur.Permasalahan yang dihadapi adalah mengenai pemahaman mengenai entrepreneur pada kelompok perempuan yang ada di Teluk Betung. Usaha Fillet ikan masih banyak dikerjakan oleh per orangan, hal ini dikarenakan perempuan atau istri sudah membantu suami untuk menjual hasil tangkapan ikan selama berlayar di laut.  Solusi Yang Ditawarkan Ke Mitra  adalah dengan pemberian edukasi mengenai Entrepreneur, edukasi yang berisi pelatihan berjenjang diharapkan mampu membentuk pola pikir bahwa entrepreneur dengan mudah dapat dilakukan oleh kelompok perempuan fillet ikan. Sebelum pelatihan, Tim Universitas Sang Bumi Ruwa Jurai akan membuat metode penyuluhan dan pelatihan entrepreneur agar kelompok perempuan lebih mudah menjalan usaha tidak dengan hanya menjual produk fillet ikan saja tetapi produk mempunyai nilai jual yang lebih tinggui. Pelatihan disiapkan untuk kelompok perempuan mempersiapkan usaha mereka menjadi usaha yang dikenal banyak orang, bukan hanya di daerah teluk betung timur hususnya daerah lempasing yang memang terkenal dengan pusat penjualan ikan segar dari nelayan.  Target luaran dalam kegiatan PkM ini adalah sebagai berikut: a) Semua anggota Mitra memahami dan melakukan Entrepreneur fillet ikan sehingga dalam melakukan kegiatan usaha/bisnis lebih tergerak dalam memperluas pasar, memodifikasi produk yang sudah ada menjadi lebih berkualitas dan mempunyai diversifikasi dari produk lain seperti Sempol Ikan,Nugget Ikan ,dan Lumpia Ikan, b) Meningkatkan kesejahteraan Mitra, dengan kegiatan PkM ini mitra lebih memahami tentang entrepreneur dan mempunyai merek dagang, sehingga produk lebih mempunyai nilai jual yang tinggi, sehingga produk ini lebih banyak dikenal oleh masyarakat di Bandar lampung.
Rancang Bangun Sistem Informasi Pelayanan Administrasi Model Desa Cerdas Berbasis Web di Desa Mumbang Jaya
Authors: Zulkarnaini Zulkarnaini , Setiawan Agus , Nursiyanto Nursiyanto , Sriyanto Sriyanto
Published: January 2024

The use of information technology in Mumbang Jaya Village which is located at Jl. Radin Intan No.49, Mumbang Jaya, Jabung, East Lampung Regency, South Sumatra 34184 with a population of 10470 people with 226 heads of families known to problems such as conveying information to the community in the form of activities and announcements are still carried out using notice boards or using pamphlets, so that the impact that arises is the high operational costs and information coverage  which is limited. Another problem is that the process of processing villagers' data and information on letter requests that are carried out is still done manually, such as residents having to come to the village office to apply for letters based on the required file, this has an impact on the slow process and can cause data collection errors.The method used in the research is extreme programming based on a brief history that software development is widely used for faster development by covering the stages of planning, design, coding and testing. The system is built using php programming language and Mysql database which aims to facilitate or implement the use of website technology to obtain information in urban villages. The results of the study are in the form of a population data administration service system and complaints services with a smart village model to provide convenience in conveying important information to the community. The implementation of the population administration information system using a web-based government to citizen model produces a system with three main features, namely requests for letters, complaints, criticisms and suggestions and can see information about the village.
Komparasi Algoritma Suport Vector Machine Dan Naive Bayes Dalam Analisis Sentimen Kebijakan PPKM
Authors: Pramestiawan Rico
Published: January 2024

Corona virus is an infectious disease that attacks human respiration. This virus originated in China, more precisely in Wuhan City, Hubei Province. early March 2020 this virus entered Indonesia and has spread throughout the world. In Indonesia there are 6,721,095 people exposed to Covid-19 and 160,648 people have died. This makes the government quickly make policies, in a policy there will be pros and cons in the community, so that sentiment analysis is needed to find out the response of the community regarding policies issued by the government, in this case the policy on the Implementation of PPKM.Keywords: Suport Vector Machine algorithm and Naïve Bayes algorithm; Rapid Miner;
Perbandingan Algoritma C4.5 dan Naive Bayes Untuk Menentukan Penerima Bantuan Bedah Rumah di Kabupaten Tanggamus
Authors: Gunawan Arbi , Hasibuan M Said
Published: January 2024

A livable house is a basic human need, a livable house is said to be if the home owner has a sense of peace and comfort living in that house. A livable house is interpreted as a house that has facilities to meet human needs in carrying out daily activities. The government assistance has not been distributed evenly to the homes of the residents of Tiga Dolok Village, because the program that has been running so far is very complicated, the system that runs is still manual in processing community data. Therefore, the authors provide a solution to classify the eligibility level of the house using the C4.5 algorithms and the Naïve Bayes algorithm. This algorithm was chosen because it is one of the methods in the Decision Tree that is widely used to make predictions about a case. Thus, government subsidies for renovating uninhabitable houses can be channeled in an appropriate manner. The research objective is to use a decision tree based on the C4.5 algorithms, which is expected to increase the accuracy of receiving housing feasibility renovation assistance. The research method used is Data Mining. Analysis and calculations using this algorithm really help the decision-making process to determine people who are eligible to receive housing renovation assistance and people who are not eligible to receive housing renovation assistance. Keywords: Livable House; C4.5 Algorithm; Decision tree, Naïve
Penentuan Kelayakan Penerima Pembiayaan Kredit Menggunakan Metode Naive Bayes dan Algoritma C4.5 (Studi Kasus: KSPPS BMT Adil Berkah Sejahtera)
Authors: Ardiyanto Tri , Nugroho Handoyo Widi
Published: January 2024

Banking provides credit services to facilitate the community in running a business. To minimize risk, banks need to analyze the feasibility of extending credit to customers. This research aims to obtain the best procedure for classifying credit worthiness to customers. The reason for choosing the best method is the method that is appropriate for use in the classification of credit granting with the highest accuracy value. The highest accuracy was selected through a comparison of the c4.5 and naive bayes algorithms. The accuracy results obtained from the c4.5 algorithm with three tests were 91.23% and AUC 0.686 while Naive Bayes produced an accuracy of 89.90% and AUC 0.744 Keywords: Creditworthiness, classification, algorithm c4.5, naive bayes
Growth of Aluminium Nitride Thin Film using Pulse-Modulated Rf Magnetron Sputtering Plasma
Authors:   Universiti Tun Hussein Onn Malaysia, Tahan M. , Nafarizal N. ,   Universiti Tun Hussein Onn Malaysia, Sahdan M. Z. ,   Preston GeoCEM Sdn. Bhd., Bakri A. S. ,   Universiti Tun Hussein Onn Malaysia, Raship N. A. ,   National Defense University of Malaysia, Ahmad M. K. ,   Universiti Tun Hussein Onn Malaysia, Soon C. F. ,   Universiti Tun Hussein Onn Malaysia, Ahmad M. Y. ,   Nanorian Technologies Sdn Bhd
Published: January 2024

Aluminum nitride (AlN) thin films on silicon (Si) (100) substrates are grown by pulsed rf magnetron sputtering at constant power 200 W, 50 % duty cycle, and substrate at room temperature. The films were characterized using filmetrics, X-ray diffraction, energy dispersive spectroscopy (EDS) and atomic force microscopy (AFM) techniques. The deposited AlN thickness using frequency of 5 Hz for distance of 1-inch and 6- inches were70.74 nm and 20.40 nm, respectively. The depositions rate is obviously affected by the working distance between the target to the substrates. This is because, at shorter distance between target to substrate, the kinetic energy of bombardment particles become higher. Thus, higher deposition rate and good crystallinity can be obtained as the Al atom and N atom will deposited directly to the substrates. Then, the effect of pulse frequency was investigated. The thickness of AlN thin films using frequency of 5 Hz, 3 Hz and 1 Hz is 70.74 nm 63.72 nm, and 70.23 nm, respectively. The effects of frequency using pulsed rf magnetron was significantly small. The experimental results clearly demonstrate that the energy supplied to the plasma significantly influence the stoichiometric and crystallisation of the thin films.
Booth Algorithm with Implementation of UART Module using FPGA
Authors:   Universiti Tun Hussein Onn Malaysia, Mahamad Abd Kadir , Sidek Azmi ,   Universiti Tun Hussein Onn Malaysia, Saon Sharifah ,   Universiti Tun Hussein Onn Malaysia, Fatt Kong Kenneth Wong ,   Iconix Consulting Sdn Bhd, Khan Iqbal A. ,   Umm Al-Qura University
Published: January 2024

FPGA gives high level of flexibility to the user to rapidly construct and test any hardware. It has a lot of gates which are used depending upon the hardware to be implemented. These project aims at designing Booth multiplier using VHDL for signed bit multiplication in FPGA for high speed operations, developed and implemented of UART module required to enable two-way communication between the DE-2 board and computer. It is also designed GUI interface using MATLAB for sending data and enable the output of the process result to be displayed. The Booth multiplier was implemented using the algorithm in both signed and unsigned number and the input and output of the multiplication was successfully achieved and confirmed through simulation. The GUI was implemented and tested, which UART module also performed well for transmitting and receiving of 8-bit width data. In general, the objective of this project was successfully achieved, which, the result of the component part were able to be tested.
Application of Polarization and Depolarization Current in High Voltage Insulator - A Review
Authors:   Universiti Tun Hussein Onn Malaysia, Sunthrasakaran Nishanthi , Mohd Jamail Nor  Akmal ,   Universiti Tun Hussein Onn Malaysia, Mohd  Jamail Nor Shahida ,   Prince Sultan University, Baharom Md Nor Ramdon ,   Universiti Tun Hussein Onn Malaysia, Mohamed Piah Mohamed Afendi ,   Universiti Teknologi Malaysia, Kamarudin Qamarul  Ezani ,   Universiti Tun Hussein Onn Malaysia, Sies Mohamad Farid ,   Universiti Tun Hussein Onn Malaysia, Othman Nordiana Azlin ,   Universiti Tun Hussein Onn Malaysia, Abd Rahman Rahisham ,   Universiti Tun Hussein Onn Malaysia
Published: January 2024

Deterioration of cable insulator can be caused by many factors such as aging, fault and breakdown. These factors are caused by the presence of moisture, impurities and heat due to high temperatures in an insulator. The maintenance and replacement for insulation system in power cables, power transformers and electric machine stator are generally expensive and time consuming. Thus, the performance and ability of an insulator can be monitored through polarization and depolarization current (PDC). Polarization and depolarization current (PDC) is a non- destructive test method that is used to analyse many factors that affects the behaviour of an insulator in time domain. This paper presents the review on application of polarization and depolarization current test method on different type of insulator. The factors that affects the performance of different type of insulator will be discussed in this paper. Moreover, the theory of polarization and depolarization current will be explained in order to understand the behaviour of polarization and depolarization current curve when fault occurs. Last but not least, this paper will provide a review on the different type of factors that affects the performance of different types of insulation.
Investigating Phase Space Reconstruction of ECG for Prediction of Malignant Ventricular Arrhythmia
Authors:   Universiti Teknologi Malaysia, Heng Wei Wei , Ming Eileen Su Lee ,   Universiti Teknologi Malaysia, Jamaluddin Ahmad Nizar B ,   Ara Damansara Medical Centre, Yeong Che Fai ,   Ara Damansara Medical Centre
Published: January 2024

Prediction of malignant ventricular arrhythmia is imperative to enable early diagnosisand prevent sudden cardiac death. There are a wide variety of methods employed in previous works with box counting of phase space reconstruction diagrams achieving the highest performance. However, there is no follow-up work investigating or improving this method. This work is performed to objectively assess the feasibility of box counting technique for prediction of malignant ventricular arrhythmia and to validate the prediction technique across larger data sets, including the widely acceptable MIT-BIH database. Box counting using different windowing methods, data representation methods of phase portrait and testing database are investigated for performance and versatility. By using windows of RR segments and linking phase portraits, this modified box counting method has higher resistance to signal noises, which are common in the electrocardiogram. It is verified using four Physionet databases (CUDB, SDDB, PTBDB and NSRDB) which contain either arrhythmic or control records. High prediction accuracy of 94.12%, sensitivity of 88.46% and specificity of 100% are achieved by the coefficient of variation derived from this method. This technique is proven useful in predicting malignant ventricular arrhythmia and its implementation is envisaged to enable early detection and diagnosis.
Design and Investigate of Flushing System for Electrical Discharge Machining (EDM) Application
Authors:   Telkom University, Rachmat Haris , Ibrahim Rasidi ,   Universiti Tun Hussein Onn Malaysia, Ming Kee Hem ,   Universiti Tun Hussein Onn Malaysia, Ismail Al Emran ,   Universiti Tun Hussein Onn Malaysia, Rahim Zulafif ,   Universiti Tun Hussein Onn Malaysia, Swangsari Worapong ,   Telkom University
Published: January 2024

Electrical Discharge Machining (EDM) is high precision machining process in which no actual contact between the workpiece and electrode during sparking. Dielectric fluid play a role as flushing medium and semiconductor between workpiece and electrode to stabilization and controlled spark gap ionization condition. In real condition, nozzle flushing system in EDM machine not able to complete remove debris formed during machining and affect the machining performance. Improper flushing due to lack of guideline at setup position of nozzle and inlet pressure caused low material removal rate, irregular tool and higher cost on raw material. To overcome this problem, the design and investigate of flushing system in EDM application is required. The design and investigation undergo by simulation of ANSYS Computational Fluid Dynamics (CFD) with a virtual experiment to accurate prediction of flushing performance. The influence of nozzle size and inlet pressure supplied on flushing efficiency were analyzed to avoid improper flushing on die-sinking EDM process. The simulation and experiments clarified that the higher inlet pressure, P=0.20 bar and larger nozzle diameter, D=6mm resulting in higher total pressure which is 2647.16 Pa. Furthermore, the streamline of velocity and eddy viscosity contour in the work tank using to analyze the turbulence zone by nozzle flushing obtained by the CFD analysis. The condition in case 5 (D=5mm, P=0.15 bar) is more efficiency on debris removal rate based on the result of high total pressure on machining zone and eddy viscosity contour showed the turbulence zone only formed area near to outlet of system. The model results have been shown good agreement with experiment and co-relation data.
GIS-MCDM Approach to Determine Forest Plantation Areas in U-tapao River Basin in Songkhla, Thailand
Authors:   Prince of Songkla University, Ali Dilawer , Batool Shahida ,   Pir Mehr Ali Shah Arid Agriculture University, Techato Kua-anan ,   Prince of Songkla University, Gyawali Saroj ,   Prince of Songkla University, Suklueng Montri ,   Prince of Songkla University
Published: January 2024

Land suitability assessment is indispensable for the successful forest land use development. This will provide a rational basis to accomplish the land use decisions. Forest land degradation owing to distinct reasons (rapid urbanization, transformation to the agricultural land) has become a matter of great concern. Therefore, this research aim was to determine the forest plantation area in U-tapao river basin (URB), Southern Thailand. Multicriteria decision making (MCDM) technique was used in Geographic Information System (GIS) environment to find as well as to validate a suitable land for forest planation in the study area considering two main factors i.e. bio-physical and socio-economic. This study found that out of total area of the URB (2305 km2), approximately 59.66 percent (1375.2 km2) is highly suitable for forest plantation. This study may assist the future researchers and forest policymakers to take measures against the forest land degradation.
Impact of the evaporation duct uncertainty on the tropospheric radio wave propagation
Authors:   St. Petersburg Federal Research Center of the Russian Academy of Sciences 199178, Russia, Saint Petersburg, 14 Linia, 39, Lytaev M.S.
Published: January 2024

This study is dedicated to the radio wave propagation modeling in the evaporation duct. Special attention is given to the fact that the parameters of tropospheric waveguides are practically always determined with some degree of error. An algorithm based on the parabolic equation method has been developed, which takes into account the measurement error of the tropospheric refractive index and assesses the statistical characteristics of the spatial distribution of radio wave amplitude. A series of numerical experiments have been conducted for various propagation conditions. It has been demonstrated that in many cases, ignoring the refractive index error can lead to significant discrepancies in simulation results.
Digital radio receiver based on neural network
Authors:   Siberian Federal University, 660041, Russia, Krasnoyarsk, Svobodny Ave, 79, Yukhmanov A.D. , Mishurov A.V. ,   Siberian Federal University, 660041, Russia, Krasnoyarsk, Svobodny Ave, 79, Konovalenko A.I. ,   Siberian Federal University, 660041, Russia, Krasnoyarsk, Svobodny Ave, 79, Evstratko V.V. ,   Siberian Federal University, 660041, Russia, Krasnoyarsk, Svobodny Ave, 79
Published: January 2024

One of the areas of digital signal processing used in radio receivers and currently being investigated is the use of artificial neural networks. Signal reception is one of the most difficult theoretical and engineering problems in message transmission. The difficulty lies in the fact that messages need to be extracted from modulated signals, which are exposed to various distorting factors and interference in the radio channel. Therefore, it is desirable to have methods of reception that would be the best (optimal) in the given conditions. There are many different neural network topologies. Single–layer and multi-layer direct propagation are known – perceptrons, recurrent networks, self-organizing networks, as well as hybrid networks (radial-basis, hierarchical classifiers). Each of these types of topologies has its own advantages and disadvantages.The article analyzes current research and development in this area. The implementation of a radio receiver (demodulator) based on a multilayer perceptron is shown and the neural network is trained. Using National Instruments PXI equipment, a study was carried out, which showed that in comparison with an optimal receiver, the probability of a bit error in a receiver based on a neural network is higher, but insignificant. The operation of the receiver under the influence of harmonic interference showed that as the power of the interference increases, the probability of a BER error increases, and the closer the interference is to the carrier frequency, the higher the BER also becomes. Nevertheless, the neural network-based digital receiver under study remains operational at significant levels of interference that are close enough to the carrier frequency of the desired signal.
Asociación entre metaplasia, displasia y cáncer de vesícula biliar en una EPS de Bogotá, D.C., Colombia
Authors: Robin Germán Prieto-Ortiz , Bustos-Molina John Alexander , Pérez-Hernández María Alejandra , Sánchez-Monroy Jenny Alexandra
Published: January 2024

Introducción. El cáncer de vesícula biliar es el más común en el tracto biliopancreático y una importante causa de mortalidad. La metaplasia y la displasia han sido mencionados como probables precursores relacionados con la secuencia metaplasia-displasia-cáncer. El objetivo de este estudio fue establecer las posibles asociaciones entre estas alteraciones histopatológicas y su relación con la edad y el sexo de los pacientes.
Métodos. Estudio observacional retrospectivo descriptivo, con un componente analítico de corte transversal. Se incluyeron los informes de patología de pacientes llevados a colecistectomía laparoscópica electiva y ambulatoria, entre enero de 2015 y diciembre de 2020, con colecistitis crónica, colelitiasis o pólipos vesiculares, mayores de 18 años. Se describieron las características demográficas por sexo y edad utilizando medias, desviaciones estándar y porcentajes. Se emplearon la prueba de chi cuadrado y la prueba exacta de Fisher para evaluar la asociación entre las variables cualitativas.
Resultados. Se incluyeron 4871 informes de patología. En esta cohorte se encontró asociación estadísticamente significativa entre metaplasia, displasia y cáncer de vesícula (p<0,05), al igual que con el sexo y la edad de los pacientes.
Conclusiones. Los resultados sugieren una asociación entre metaplasia, displasia y cáncer de vesícula biliar en la población estudiada. Se recomienda la realización de investigaciones complementarias para definir la posible causalidad entre metaplasia, displasia y cáncer de vesícula biliar en una población más heterogénea.
Development of Instructional Media Using 'Canva' Based on Animated Videos for the Subject of Biology
Authors: Fitri Ainil , Annas Firdaus , Efriyanti Liza , Darmawati Gusnita
Published: January 2024

Instructional media are essential for effectively conveying teaching materials to students. However, if the media used remain traditional and uninteresting, the teacher's delivery of the material may not reach students optimally. At SMAN N 1 Harau, the use of media in biology subjects only involves slides containing explanatory text narratives, leading to students encountering difficulties in comprehending the material quickly. This paper aims to create a valid, practical, and effective design for animated video-based media for biology subjects using Canva at SMA Negeri 1 Harau. The method employed is Research and Development (R&D) in the 4D version, which encompasses defining, designing, developing, and disseminating. The findings of this research were derived from product testing, including a validity test stage conducted by 3 experts, yielding a score of 0.79 in the valid category. Additionally, a practicality test was administered by 6 practitioners, resulting in a score of 0.88 in the very high category. Furthermore, an effectiveness test was conducted with 15 assessors, achieving a score of 0.65 in the effective category. In conclusion, instructional media designed based on animated videos proves to be practical and effective.

Media pembelajaran sangatlah diperlukan untuk menyampaikan materi ajar pada peserta didik. Namun jika media yang digunakan masih tradisional dan tidak menarik mengakibatkan materi ajar yang disampaikan guru tidak sampai kepada siswa dengan maksimal. Penggunaan media pada mata pelajaran biologi di SMAN N 1 Harau hanya menggunakan slide yang berisikan narasi penjelasan berupa teks, sehingga siswa mengalami kendala dalam memahami materi dengan cepat. Tujuan dari tulisan ini untuk menghasilkan sebuah rancangan media berbasis video animasi pada mata pelajaran biologi menggunakan Canva di SMA Negeri 1 Harau yang valid, praktis dan efektif . Metode yang digunakan adalah Research and Development (R&D) versi 4D yaitu define, design, develop dan dissiminate. Temuan dari artikel ini didapatkan dari uji produk dengan tahapan uji validitas dari 3 orang ahli dengan nilai 0,79 kategori valid, uji praktikalitas dari 6 orang praktikalator dengan nilai 0,88 kategori sangat tinggi, dan uji efektivitas dari 15 orang penilai dengan nilai 0,65 kategori efektif. Dapat disimpulkan bahwa media pembelajaran yang diracangan berbasis video animasi dapat digunakan dengan valid praktis dan efektif.