bluuebunny/crossref_metadata_2025 huggingface dataset:
La cerámica "blanca lisa" del convento franciscano de Las Palmas de Gran Canaria
Authors: Sosa Suárez Elena E.
Published: August 2023

En el año 1992 se realizó la excavación arqueológica del solar en el que estuvo ubicado el antiguo Convento de San Francisco de Asís de Las Palmas de Gran Canaria. La importancia de esta intervención radicó en que se trataba de un edificio fundado a finales del siglo XV, en fechas próximas a la conquista de la isla por la Corona de Castilla. Entre el abundante material exhumado, de procedencias y cronologías diversas, presentamos en este trabajo los resultados del estudio de “la serie blanca lisa”. Gracias a los trabajos precedentes y a hallazgos arqueológicos paralelos en tierras americanas, portuguesas y españolas, conocemos sus fechas de producción, desde la mitad del siglo XV hasta mediados del XVIII. La falta de datos en la memoria de excavación nos llevó a analizar la serie cerámica a partir de la observación macroscópica de la pasta, del tipo de cubierta y de los diseños aplicados en su superficie, para identificar, a través de su lectura, posibles indicadores cronológicos o de procedencia. Los análisis petrográficos de los recipientes cerámicos han permitido confirmar su procedencia andaluza. En este trabajo describimos el análisis sistemático que hemos desarrollado para caracterizar “la serie blanca lisa” e identificar su alfar de procedencia. Proponemos, además, una cronología a partir de la evolución tipológica de las diferentes morfologías de los recipientes de la vajilla que fueron exhumados del solar franciscano, a partir del análisis de los resultados obtenidos en excavaciones arqueológicas en Marruecos, en América y en la Península Ibérica (Portugal y España); por tanto aportamos una visión general unificando criterios de los estudios precedentes desde los tres continentes que rodean al Archipiélago Canario.
Penulisan Cerita Pendek Mengenai Lingkungan Alam di Mubut Darat
Authors: Aji Satriya Bayu , Antoni Condra , Siahaan Arta Uly
Published: August 2023

Perubahan Batam dari kota industri ke kota wisata berpotensi memberi dampak buruk terhadap kelestarian lingkungan pantai, salah satunya di pulau Mubut Darat, yang direncanakan menjadi tempat tujuan wisata. Selain sains, perlu adanya pendekatan dari sisi budaya melalui ekokritik guna mencegah dan mengurangi dampak buruk perusakan lingkungan atas nama pembangunan. Jelas bahwa manusia adalah bagian dari alam dan dualisme budaya dan alam merupakan salah satu sorotan dalam ekokritik. Tujuan utama kegiatan pengabdian ini adalah menggali perspektif masyarakat setempat terkait pembangunan desa wisata dan permasalahan kerusakan lingkungan yang menyertainya. Data didapat melalui wawancara dengan pengelola pantai di Mubut Darat dan awak media Batam Pos. Melalui wawancara, warga diajak untuk berdialog, menerima opini, dan mengungkapkan pendapatnya. Cerpen yang dihasilkan diterbitkan dalam bentuk cerita pendek di kolom Zetizen Batam Pos sebagai media untuk memperkenalkan pantai di Mubut darat dan memberi perspektif kepada pembaca mengenai pelestarian lingkungan. Menurut hasil wawancara, tokoh, alur, dan latar cerita menarik dan mudah dipahami tetapi isu lingkungan tidak cocok disampaikan lewat genre romansa.
Sistem Keamanan Pintar Menggunakan Kamera Berbasis OpenCV
Authors: Sani Abdullah , Julianto Randa , Maulidiah Hana Mutialif , Wimbang Wicaksono Muhammad Jaka
Published: August 2023

Security is a condition that is free from denger, every individual has the right to feel safe in daily life or activities. As time goes by, the security level can be disrupted or dangerous things can happen beyond prediction, in other words, it can happen suddenly, therefore of course there must be a system development as a medium for anticipating this. With the aim of develop the system, it is necessary to design a system that can reduce crimes that are beyond human expectations. This system is called the Smart Security System which is a development of CCTV in general, this system uses cameras and smartphones as information media that will provide notifications to each individual to get notifications regarding real-time conditions in areas under camera surveillance via telegram. This system is assisted by Machine Learning in the form of OpenCV which is programmed on a Raspberry pi4 device which is connected directly to the camera to detect people ormovement in areas under CCTV monitoring so that it can immediately provide information to users which is sent via telegram in the form of video. It is hoped that with this system the level of security can be more effective so as to reduce the risk of theft in a room. From the results of the tests that have been carried out, it is found that to determine the effectiveness of the work of this study, an optimal distance is needed with a minimum distance range of 2 meters - 10 meters from the front of the camera and bright lighting
Assembly Modul Pembaca Transponder RFID dan Pengujiannya
Authors: Arifin Muhammad , Wivanius Nadhrah , Sonsania Creed Ridho
Published: August 2023

Teknologi berkembang sangat pesat beberapa tahun terakhir terutama pada teknologi berbasis Radio Frequency Identification Device (RFID). Hal ini disebabkan oleh banyaknya kebutuhan yang menggunakan teknologi. Pemanfaatan sistem RFID di Indonesia sebagian besar masih menggunakan perangkat keras RFID seperti transponder RFID dan RFID reader module yang dibeli dari negara lain seperti Cina atau negeri lainnya. Industri di Indonesia yang menggunakan RFID juga rata-rata masih membeli dan tidak memproduksi sendiri. Dari masalah yang ada, maka adanya peluang untuk memproduksi perangkat RFID ini baik transponder RFID maupun modul pembaca transponder RFID yang mirip dengan RFID yang sudah ada. Dalam penelitian ini dilakukan pembuatan modul pembaca transponder RFID dengan tahapan yang dimulai dari membuat skematik rangkaian modul pembaca transponder RFID, membuat layout PCB, mencetak PCB sesuai desain PCB, melakukan assembly komponen dengan menggunakan solder manual, dan melakukan pengujian. Hasil pengujian fungsi menunjukkan bahwa modul pembaca transponder RFID yang dibuat hanya bisa membaca kartu RFID dengan jarak tapping maksimal pada jarak 7 mm, sedangkan modul pembaca transponder RFID yang di pasaran bisa membaca kartu RFID dengan jarak tapping bisa lebih dari 7 mm.
Diagenesis Analysis of Padengo Limestone Area, Gorontalo Regency Based on Petrographic Method
Authors: Boften Fikri , Permana Aang Panji , Kasim Muhammmad
Published: August 2023

Carbonate rocks are rocks composed of carbonate minerals that are chemically formed in the form of solutions, and there are organisms involved in their formation. The limestone found around Lake Limboto is very interesting, because the water in the lake is freshwater while the limestone is characteristic of a marine environment. Diagenesis is a natural process in sedimentary rocks that occurs from the initial deposition until it reaches the limit of metamorphism will be formed. The research area is located in Padengo Village, West Limboto Subdistrict, Gorontalo Regency with a research area of 7.72 Km2. This research aims to analyze the diagenesis of limestone in the Padengo area of Gorontalo Regency using the petrographic method. The methods used are field geological survey and petrographic analysis. The results showed that the geology of the Padengo area is composed of a wackestone limestone facies unit, a crystalline limestone facies unit, and an alluvial sediment unit. The diagenesis type of the study area consists of neomorphism, micritization, dissolution, cementation, and dolomitization. From the type of diagenesis, it can be determined that the limestone diagenesis environment of the study area starts from the marine phreatic zone, then the burial zone, and ends at the meteoric vadose zone.
Penerapan Data Mining Untuk Memprediksi Prestasi Akademik Mahasiswa Menggunakan Algoritma C4.5 dengan CRISP-DM
Authors: Pratama Suprayuandi , Iswandi Iswandi , Sevtian Andre , Anjani Tsabita Putri
Published: August 2023

Data siswa merupakan database yang sangat penting karena data ini dapat digunakan untuk menganalisis prestasi akademik siswa, seperti halnya data indeks prestasi siswa. Di Fakultas Teknik dan Sains Universitas Muhammadiyah Bangka Belitung yang terdiri dari program studi Ilmu Komputer, Teknik Sipil dan Konservasi Sumber Daya Alam memiliki data prestasi mahasiswa. Data tersebut digunakan untuk analisis. Pada data siswa diterapkan metode data mining klasifikasi dengan Algoritma C4.5 untuk memprediksi prestasi akademik siswa. Algoritma C4.5 merupakan algoritma yang digunakan untuk membentuk pohon keputusan. Pohon keputusan berguna untuk mengeksplorasi data, menemukan hubungan tersembunyi antara sejumlah variabel input dengan satu variabel target. Dengan mengklasifikasikan data siswa, diperoleh hasil kinerja dari hasil analisis. Hal ini menjadi acuan bagi dosen dan mahasiswa untuk meningkatkan proses pembelajaran di perkuliahan dan kedisiplinan mahasiswa untuk belajar.
Optimasi Pengendalian Persediaan dengan Metode Reorder Point dalam Pengembangan Aplikasi Kontrol Stok Berbasis Web
Authors: Maulidi Rakhmad , Listianti Prima
Published: August 2023

Stock control is a process of keeping track of owned items, their location, and their movements in and out of storage. It helps businesses to manage their inventory efficiently and meet consumer demand while reducing the cost of storing goods. However, online shops like Omah Mode often struggle to meet the demand of consumers due to the lack of a stock control system, resulting in penalties from the marketplace. To solve this problem, a web-based stock control application was designed using the reorder point method. This method determines the minimum stock of goods that should be in the warehouse and the right time to order goods with low stock from suppliers. The purpose of this research is to develop an inventory control system that displays the minimum stock of goods needed in the warehouse. The study used the SDLC Prototype method, consisting of needs analysis, prototype making, prototype evaluation, system coding, system testing, system evaluation, and system use. The results showed that the system created has an 85.71% accuracy rate based on a comparison of manual calculations and system calculations of 28 sample items.
Pengenalan Wajah Resolusi Rendah Menggunakan Arsitektur Lightweight VarGFaceNet dengan Adaptive Margin Loss
Authors: Ramadani Daffa Tama , Adam Riza Ibnu , Jaman Jajam Haerul , Rozikin Chaerur , Garno G.
Published: August 2023

Pengenalan wajah merupakan solusi keamanan modern yang cepat dan mudah di integrasikan pada kebanyakan device yang ada saat ini, sehingga sistem ini banyak diterapkan pada beberapa domain sebagai salah satu otorisasi keamanan. Pengembangan model pengenalan wajah menggunakan arsitektur mainstream (AlexNet, VGGNet, GoogleNet, ResNet, dan SENet) dapat menyebabkan model pengenalan wajah sulit diimplementasikan pada perangkat mobile dan embedded system. Selain itu input dengan resolusi yang rendah seperti pada footage kamera pengawas CCTV ataupun drone menyebabkan model kesulitan untuk mengenali wajah yang di input-kan karena gambar tidak punya cukup petunjuk untuk dikenali. Oleh karena itu penelitian ini akan menganalisis performa model pengenalan wajah yang dikembangkan dengan arsitektur lightweight VarGFaceNet dengan fungsi adaptive margin loss AdaFace pada dataset gambar resolusi rendah. Berdasarkan hasil evaluasi pada dataset LFW, didapatkan akurasi sebesar 99.08% pada data resolusi tinggi (112x112 piksel), sedangkan pada data resolusi rendah sintetis dengan resolusi terendah (14x14 piksel) didapatkan akurasi sebesar 79.87% dengan batuan model super resolution Real-ESRGAN dan GFP-GAN. Pada dataset TinyFace, tanpa melakukan fine tune, didapatkan akurasi Rank-1 sebesar 46.08% tanpa menggunakan model super resolution dan 45.03% dengan menggunakan model super resolution.
Perbandingan Metode Klasterisasi Data Bertipe Campuran: One-Hot-Encoding, Gower Distance, dan K-Prototype Berdasarkan Akurasi (Studi Kasus: Chronic Kidney Disease Dataset)
Authors: Fadilah Zahra Rizky , Wijayanto Arie Wahyu
Published: August 2023

Penelitian ini bertujuan untuk membandingkan metode one-hot-encoding, Gower distance yang dikombinasikan dengan algoritma k-means, DBSCAN, dan OPTICS, serta k-prototype untuk pengelompokan data bertipe campuran. Dataset yang digunakan dalam penelitian ini adalah dataset penyakit ginjal kronis (CKD) yang bersumber dari UCI Machine Learning Repository. Berdasarkan evaluasi dengan menggunakan indeks siluet, diketahui bahwa k-prototype dengan jumlah cluster k=2 merupakan metode clustering yang paling optimal karena memberikan nilai indeks siluet paling tinggi dibandingkan keempat metode lainnya, yaitu dengan nilai 0,3796. Cluster 1 berisi 175 observasi, sedangkan cluster 2 berisi 225 observasi. Jika dikaitkan dengan label pada dataset, hasil clustering memberikan nilai akurasi sebesar 81,25 persen.
ANALISIS KESESUAIAN MATERI BUKU TEKS ILMU PENGETAHUAN SOSIAL TERBITAN ERLANGGA
Authors: Nurhayati Nurhayati , Sudarman Sudarman , Astuti Ratna Fitri
Published: August 2023

Pemilihan buku teks terbitan Erlangga belum di sertai pengetahuan guru apakah buku teks tersebut sudah sesuai dengan kurikulum yang berlaku. Tujuan penelitian adalah mengetahui kesesuaian materi pada buku teks terbitan Erlangga mata pelajaran IPS Kelas IX berdasarkan kurikulum yang berlaku, metode yang digunakan dalam penelitian ini adalah deskriptif dengan jenis penelitian pendekatan kualitatif (Content Analysis). Dengan demikian hasil yang didapatkan oleh peneliti dalam penelitian Analisis Kesesuaian Materi Buku Teks Ilmu Pengetahuan Sosial Terbitan Erlangga untuk Kelas IX SMP Negeri 22 Samarinda menghasilkan 74,78% buku teks sudah sesuai, namun 25,22% buku teks tersebut masih harus disempurnakan.
PENGEMBANGAN MEDIA PEMBELAJARAN BERBASIS WEB GOOGLE SITES PADA MATA PELAJARAN EKONOMI
Authors: Firmansyah Yanuar , Sudarman Sudarman , Partha Made Ngurah
Published: August 2023

Penelitian ini bertujuan untuk mengembangkan dan mengetahui kelayakan media pembelajaran berbasis web google site pada mata pelajaran Ekonomi kelas XI. Metode penelitian yang digunakan adalah Research and Development (R&D) dengan model pengembangan ADDIE yang terdiri dari lima tahapan, yaitu analysis, design, development, implementation dan evaluation. Berdasarkan hasil penelitian yang sudah dilakukan oleh peneliti (1) Diperoleh rata-rata nilai persentase dari ahli materi sebesar 80% dengan kategori layak. (2) Hasil validasi ahli media diperoleh rata-rata nilai persentase sebesar 80% dengan kategori layak. (3) Hasil uji coba kelompok kecil diperoleh rata-rata nilai persentase sebesar 88,7% dengan kategori sangat layak. (4) Hasil uji coba kelompok kecil diperoleh rata-rata nilai persentase sebesar 93% dengan kategori sangat layak. Dapat disimpulkan bahwa media pembelajaran berbasis Web Google Sites pada mata pelajaran ekonomi kelas XI dinyatakan “Sangat Layak” digunakan untuk pembelajaran.
Response of high-growth enterprises to the crisis caused by the Covid -19 pandemic
Authors: Otola Iwona , Grabowska Marlena , Krupka Zoran
Published: August 2023

This paper aims to evaluate the response of high-growth enterprises (HGEs) to the circumstances caused by the COVID-19 pandemic. Adaptation to the pandemic situation presented an enormous challenge for these enterprises. The ability to exercise sound judgment affects rational decision-making and adaptation to the circumstances. The study adopts a situational theory perspective related to high-growth enterprises. Data collection was conducted twice - at the beginning of 2019, and after the third wave of the COVID-19 pandemic, in October 2021. The Generalized Estimating Equations (GEE) method was used to analyze the sample of 150 Polish HGEs. Results show that the impact of the pandemic mainly relates to the reduction or stagnation of market opportunities. The importance of human resources decreased in favor of technological and financial resources. The majority of the surveyed companies also maintained their HGE status.
The digital transformation process in the small and medium enterprise (SME) sector in the era of the Covid-19 pandemic
Authors: Kuczewska Joanna , Garbin Praničević Daniela , Borowicz Aleksandra , Talaja Anita
Published: August 2023

This paper aims to explore the extent to which the pandemic has forced SMEs to accelerate their digital transformation efforts to remain competitive and adapt to the changing business landscape. The focus is set on three key research questions: (i) How did digitalization manifest itself in SMEs before the pandemic outbreak? (ii) how did SMEs’ digital transformation evolve during the pandemic? and (iii) what business challenges do SMEs face in the post-COVID period due to the acceleration of digital transformation? For the empirical investigation, qualitative research methods are used as in-depth interviews in 10 SMEs in Poland (six) and Croatia (4). The main results emphasize three main findings. First, even before the pandemic, SMEs recognized and used various digital transformation technologies to improve their business processes and performance. Second, the development of digitalization processes in the observed SMEs during the pandemic was mainly driven by the need for remote work, e-commerce, virtual events, and automation of business relationships among all stakeholders. Third, the post-pandemic world confirms the need for SMEs to invest in cybersecurity, talent acquisition, infrastructure, customer engagement, and data privacy to remain competitive in the digital economy.
Matrix-based assessment of spatial correlations between marine uses and ecosystem service supply in German marine areas
Authors: Kuhn Tinka , Trentlage Jennifer , Burkhard Benjamin
Published: August 2023

Marine ecosystems are highly dynamic and complex and contribute immensely to human well-being. Spatiotemporal overlaps of marine uses and human activities are constantly pressuring ecosystems, and that in turn impacts the supply quantity and quality of various ecosystem services (ES). This study is the first attempt to use the ES matrix to link marine uses and the capacity to supply ES. Combining expert- and literature-based evaluations, we assessed the relationships of twelve marine uses and five selected ecosystem services in the German North and Baltic Sea and mapped their spatial distribution. Despite a limited data availability and a higher need for simplification, the matrix approach proved to be applicable for the marine realm. Areas used for tourism and those that provide coastal safeguarding show high values of ES supply in comparison to areas used for sediment extraction and areas previously used as ammunition dumping areas. Nature conservation areas tend to have the highest capacity to supply ES. Differences in the ES supply pattern between the North Sea and Baltic Sea were identified. The results show the influence of anthropogenic activities on the spatial distribution of ES supply and can support future marine planning.
Primeros resultados de las investigaciones arqueológicas en el sitio Campo Coronel Sarmiento Mirador (Parque Nacional Pre-Delta, Diamante, Entre Ríos)
Authors: Costa Angrizani Rodrigo , Coll Moritan Victoria , Colobig María de los Milagros , Passeggi Esteban , Schimpf Claudio , Azzolina Priscila
Published: August 2023

En este trabajo se presentan los primeros resultados de los estudios arqueológicos, sedimentológicosy paleoetnobotánicos del sitio Campo Coronel Sarmiento-Mirador (CCS-M). Estas investigaciones tienencomo objetivo aportar al conocimiento de los grupos que habitaron las colinas altas que bordean el Deltadel Paraná (suroeste de Entre Ríos) y su marco paleoambiental holoceno. Este sitio, localizado dentro delParque Nacional Pre-Delta (Dpto. Diamante), está emplazado sobre una lomada alta a 46 msnm. En total seexcavaron 13 m2 en el sitio, donde se recuperó principalmente material cerámico. En menor medida, se hanhallado restos faunísticos, carbones vegetales y toscas calcáreas. Se recolectaron muestras de sedimentospara la extracción de microrrestos biosilíceos y análisis pedológicos y sedimentológicos, tanto de perfilesdel sitio como de columnas sedimentarias testigo. La evidencia obtenida hasta el momento permite proponerque este sector de las colinas altas posee un registro arqueológico que se diferencia de la zona insulardeltaica, principalmente en lo que se refiere a las características más sobresalientes de la alfarería y del tipode asentamiento identificado. Sin embargo, para comprender mejor el significado de estas diferencias esnecesario profundizar las investigaciones en el área.
Ombú de Basualdo: nuevas intervenciones en un sitio a orillas de orillas del río Coronda (Departamento San Jerónimo, Santa Fe)
Authors: Balducci Fernando , Galligani Paula E. , Lancellotti Florencia N. , Riberi Viale Macarena , Castagnola Abril , Sartori Julieta I.
Published: August 2023

En este trabajo se presentan las primeras intervenciones sistemáticas realizadas en el sitio Ombúde Basualdo, localizado en la ciudad de Coronda (Santa Fe), sobre la margen derecha del río homónimo.Desde las primeras décadas del siglo XX, este sitio y sus materiales fueron trabajados por diferentesautores, quienes realizaron especial hincapié en el análisis del registro cerámico recuperado. Casi un siglodespués, se renovaron los trabajos arqueológicos en el sitio para obtener, por primera vez, materialesen estratigrafía. Con este objetivo, se realizaron dos excavaciones, en donde se llevaron a cabo sondeos y perfiles en diferentes sectores, lo cual permitió evaluar su potencial y delimitar el área en donde se concentra el registro arqueológico. Producto de tales intervenciones se recuperaron mayormente materiales cerámicos, pero también líticos y restos arqueofaunísticos, entre los que se destaca un artefacto óseo. Los resultados obtenidos en estas aproximaciones iniciales, así como también las prácticas de socialización del conocimiento que se vienen llevando a cabo desde diferentes proyectos, se describen en este trabajo con el objetivo de dar a conocer el sitio en el contexto arqueológico del área.
De Animales Y Plantas A La Producción De Comidas En El Sitio Las Marías (Magdalena, Buenos Aires)
Authors: Auge Melisa Ayelén , Day Pilaría Fernanda Anabella
Published: August 2023

La presente contribución tiene por objetivo indagar en las actividades de producción de las comidas del sitio Las Marías (Magdalena, Buenos Aires). Esta tarea se realiza a partir de la revisión y articulación de los resultados producidos previamente a partir de los estudios de microrrestos vegetales obtenidos de fragmentos cerámicos y de restos arqueofaunísticos de dicho sitio arqueológico. Esto permitió interpretar diversas prácticas de obtención, procesamiento, cocción y conservación. Esta instancia nos ofrece evidencias para conocer los complejos entramados de saberes, creencias y prácticas involucradas en las cocinas y las comidas del pasado
Diseño Experimental Aplicado A Coberturas Cerámicas De Cazadores-Recolectores-Pescadores Pampeanos
Authors: Frere María Magadela , Francese Alicia , González María Isabel , Miguéliz Guillermina , Sabbatella Mariana
Published: August 2023

Con el propósito de contribuir al conocimiento de la tecnología cerámica de los grupos cazadoresrecolectores-pescadores del río Salado bonaerense llevamos a cabo desde hace treinta años un proyecto de arqueología experimental. En este artículo presentamos los resultados experimentales referidos a la preparación y al uso de materiales colorantes. Las sustancias preparadas las aplicamos sobre pequeñas réplicas de cuencos que sometimos a cocción. En estos experimentos usamos pigmentos minerales rojos y blancos provenientes de las sierras de Tandilia, espacio que formaba parte del circuito recorrido por estas bandas durante el Holoceno tardío, para el abastecimiento y el transporte de las rocas. Algunos de los resultados obtenidos con la experimentación nos permiten decir que estos grupos contaron con conocimientos técnicos acerca de las sustancias colorantes, del modo de obtenerlas, de las prácticas de elaboración y de la aplicación sobre determinados soportes. El trabajo experimental muestra que las durezas de los pigmentos implicaron distintos esfuerzos para el molido; qué momento fue mejor para fijar el colorante; las diferencias en las técnicas de aplicación y el comportamiento de los colores después de la cocción.
The Influence of Waste Plastic Fiber on the Characteristics of Light Weight Concrete with Expanded Polystyrene (EPS) as Aggregate
Authors: Salah Alden Aya Sabah , AL-Hadethi Abdulkader Ismail
Published: August 2023

This research aims to create lightweight concrete mixtures containing waste from local sources, such as expanded polystyrene (EPS) beads and waste plastic fibers (WPFs), all are cheap or free in the Republic of Iraq and without charge. The modern, rigid, and mechanical properties of LWC were investigated, and the results were evaluated. Three mixtures were made, each with different proportions of plastic fibers (0.4%, 0.8%, 1.2%), in addition to a lightweight concrete mixture containing steak fibers (0.4%, 0.8%, 1.2%), in addition to a lightweight concrete mixture. It contains 20% EPS. The study found that the LWC caused by the addition of WPFs reduced the density (lightweight) of the concrete mixtures because EPS tends to form more blocks, absorb water, and dry the mixture. While the increase in WPF content increased in compressive strength, as the compressive strength of the concrete mix containing (EPS) was only 13.6 MPa, the compressive strength increased to 17.6 MPa when WPFs were added. The addition of plastic also increased the bending resistance, where the bending resistance of the concrete mix containing (EPS) was only 2.26 MPa and increased to 2.66 MPa when (WPFs) were added.
Flexural Behavior of Reinforced Rubberized Reactive Powder Concrete Beams under Repeated Loads
Authors: Mohammed Hussein Haider , Ali Ahmed Sultan
Published: August 2023

Non-biodegradability of rubber tires contributes to pollution and fire hazards in the natural environment. In this study, the flexural behavior of the Rubberized Reactive Powder Concrete (RRPC) beams that contained various proportions and sizes of scrap tire rubber was investigated and compared to the flexural behavior of the regular RPC. Fresh properties, hardened properties, load-deflection relation, first crack load, ultimate load, and crack width are studied and analyzed. Mixes were made using micro steel fiber of the straight type, and they had an aspect ratio of 65. Thirteen beams were tested under two loading points (Repeated loading) with small-scale beams (1100 mm, 150 mm, 100 mm) size.
The fine aggregate is replaced by 5, 10, and 15%, respectively, with crumb rubber. While replacement of silica fume was 10, 20, 30, and 50%, respectively, with very fine rubber. Also, chip rubber was added to the mixture as coarse aggregate with 5, 10, and 15%. Five tested beams were chosen as case studies to analyze and compare the results of the ABAQUS software with the experimental results. The results showed that the flexural behavior of RRPC beams that contains rubber was acceptable when compared with the flexural behavior of the RPC beam (depending on load-carrying capacity). The crack width was decreased by including waste rubber and steel fibers. There is a satisfactory agreement between the results of the numerical analysis and the results of the experimental testing. Slight ultimate load differences are targeted between the effects of the monotonic loading and the repeated loading.
Review about the Applications of Nanoparticles in Batteries
Authors: Hasen Huda Majid , Tuama Rasha Jasim
Published: August 2023

Nanoparticles are defined as an organic or non-organic structure of matter in at least one of its dimensions less than 100 nm. Nanoparticles proved their effectiveness in different fields because of their unique physicochemical properties. Using nanoparticles in the power field contributes to cleaning and decreasing environmental pollution, which means it is an environmentally friendly material. It could be used in many different parts of batteries, including an anode, cathode, and electrolyte. This study reviews different types of nanoparticles used in Lithium-ion batteries by collecting the advanced techniques for applying nanotechnology in batteries. In addition, this review presents an idea about the advantages and disadvantages of using nanoparticles in batteries to harness energy without harming the environment. This review showed that applying nanotechnology and using nanoparticles in the production technique of batteries open the field for developing energy storage in Nano sized batteries. This, in turn, is important in the new era of technology in the industries of electronic devices and precision electrical appliances such as mobile phones, digital cameras, etc.
Impact of Anchored CFRP Composites on the Strengthening of Partially Damaged PC Girders
Authors: Abbas Hayder Qays , Al‐Zuhairi Alaa Hussein
Published: August 2023

This manuscript investigated the effect of anchorage CFRP wrapping sheets, bolts, and laminate interlock on increasing the efficiency of flexural strengthening for the post-tension girder using CFRP composites techniques longitudinal laminates at the soffit for partially damaged loss of about 14.3% from its area of prestressed concrete beams, and the impact on restoring the original flexural capacity of PC girder. Mitigating delamination of the soffit of horizontal laminates (CFRP). The texture of the laminate and anchorages influenced the stress of the laminate carbon fiber, the mode of crack propagation and failure, and consequently, the beam's attitude has been investigated in this manuscript. The experimental findings demonstrated that using CFRP laminates significantly affects strand strain, especially when anchorage wrapping is applied. The laminates CFRP-EB enhanced the flexural capacity by around 13% of the original strength, which equates to a 13% increase in strand damage. Despite an increase in flexural capacity of 20%, 22%, and 29% when using anchorage wrapping, mechanical bolts, and laminate interlock, respectively. It has been proposed to use quasi-experimental equations to predicate the actual stress of un-grouted strands, considering the influence of CFRP laminate and wrapping anchorage sheets techniques only. The experiment outcomes demonstrated that using Anchored CFRP significantly affects load-carrying capacity and cracking load by up to 29% and delays the bonding failure.
Developing a Proposed System to Organize the Investment Opportunities in Iraq
Authors: Salih Sarah M. , Muhsin Ibrahim F.
Published: August 2023

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The Iraqi government seeks to overcome the financial crisis by investing and privatizing some projects to achieve sustainable growth. Most of the investment projects in Iraq suffer from many constraints that greatly impact the success of these projects. A survey of the opinions of a group of experts was conducted to identify the most important constraints facing the investment process in Iraq. Then the experts' answers were arranged in a closed questionnaire and distributed to the research sample for which the statistical analysis was conducted. Through it, the most important (17) factors that had the greatest impact on the failure of investment projects in Iraq were reached. One of the main constraints was the slow and routine administrative procedures. Therefore, the main objective of the research is to identify the most important constraints facing the investment process in Iraq and to develop a proposed system to organize the procedures for applying for investment opportunities, given the importance of long-term investment, the importance of the referral stage, and the selection of the competent investor who meets the criteria required for the success of the investment project. The researcher concluded that many factors impact the failure of investment projects, which must be addressed for the success of these projects, as management systems and computer technology programs greatly organize investment procedures, save time and reduce routine and slow procedures.
A Institucionalização da Inteligência Penitenciária Nacional
Authors: Torres Eli Narciso da
Published: August 2023

Este artigo tem como objetivo analisar os fatores determinantes que conduziram o processo de institucionalização da Diretoria de Inteligência Penitenciária (Dipen) no âmbito do Departamento Penitenciário Nacional -, órgão do Ministério da Justiça e Segurança Pública (Depen/MJSP). Para isso, procurou-se demonstrar a expansão do encarceramento, a origem e consolidação da organização criminosa Primeiro Comando da Capital (PCC) e as ações de enfrentamento ao Estado (motins, rebeliões e homicídios) que motivaram ou influenciaram o processo de institucionalização. A análise utilizou-se, de fontes bibliográficas, mediante consulta à literatura especializada, documental e de entrevista com gestores. Assim, o estudo demonstra, cronologicamente, o contexto de encarceramento, os caminhos percorridos e os agentes públicos envolvidos no processo de criação e consolidação da Diretoria. Por fim, identifica as ações desenvolvidas pelo órgão, com especial atenção aos avanços e desafios experienciados pela Inteligência Penitenciária no combate ao crime organizado que atua a partir das prisões brasileiras.
Microfungi associated with dying Euphorbia mauritanica in South Africa and their relative pathogenicity
Authors: Marincowitz S. , Pham N.Q. , Wingfield B.D. , Roets F. , Wingfield M.J.
Published: August 2023

Euphorbia mauritanica is a succulent shrub that is indigenous to South Africa and widely distributed throughout the country. Dying plants have been observed in their natural habitat in the Northern and Western Cape Provinces of South Africa in recent years. Stems displaying
lesions were collected and the emerging cultures were identified based on ITS, LSU, ACT, RPB2, TEF1 and/or TUB2 sequence data. Four filamentous fungi were consistently observed and isolated. One was identified as Alanphillipsia (Ala. ) aloes,
and the other three were new to science and are described here as Cytospora euphorbiicola sp. nov., Nothomicrosphaeropsis namakwaensis sp. nov. and Austrophoma (Aus.) euphorbiae gen. et sp. nov. These new species and Ala. aloes were the most commonly
encountered, and their pathogenicity was tested on E. mauritanica plants in a greenhouse trial. All four species gave rise to lesions that were significantly larger than those associated with the controls, but they were not significantly different to each other. Although the lesions
associated with the inoculations were well-developed, they did not give rise to plant death, suggesting that they are not responsible for the large-scale die-off of E. mauritanica in the field. The primary cause of the death of E. mauritanica in the studied area remains unknown
and could be due to environmental factors such as has been found with the die-off of Euphorbia ingens in South Africa.
Lagrangian approach to deriving the gravity equations for a 3D-brane universe
Authors: Sharipov Ruslan Abdulovich
Published: August 2023

Recently some arguments were suggested saying that our universe should be considered as a three-dimensional brane equipped with a Riemannian metric depending on the cosmological time. These arguments are based on the concept of temporal coexistence applied to events in the four-dimensional spacetime. Relying on the three-dimensional brane presentation of our universe, the four-dimensional Einstein’s gravity equations were rewritten as three-dimensional time-evolution equations for the three-dimensional metric presenting the gravitational field in the framework of this three-dimensional brane model. In the present paper some of these time-evolution equations for the three-dimensional metric are rederived using the Lagrangian approach
A note on electromagnetic energy in the context of cosmology
Authors: Sharipov Ruslan Abdulovich
Published: August 2023

The density of electromagnetic energy and its flux are given by the well-known formulas which are widely used in classical electrodynamics. We rederive these formulas in the framework of special relativity and then extend them to the context of cosmology with the Big Bang.
Serverless Computing Security: Considerations and Best Practices
Authors: Abbas Asad
Published: August 2023

Serverless Computing Security: Considerations and Best Practices
Masculinity and Power in Wole Soyinka’s Death and The King’s Horseman
Authors: Khan Mujahid
Published: August 2023

Wole Soyinka is considered one of the foremost Nigerian literary writers of Yoruba descent. His corpus traversesall the genres of literature and covers a wide range of themes and subject matters. One prominent concern of his work is thejuxtaposition of Yoruba tradition and Western notions. This paper uses his play text, Death and the King’s Horseman, as a casestudy to examine the injustices of male autocracy that objectify women and men under the Yoruba feudal and British colonialmilieu. Masculinity has often been associated with being a breadwinner, being sexually aggressive, unemotional, etcetera;while power is often construed as a tool of authority, superiority, and influence. The consequences of the misconceptioninclude intolerance, humiliation, intimidation, and opportunities. The paper is thus a critique of the masculine presumptionsthat underpin the ruling class in the play. The main argument advanced in this paper is the greedy, dominant, and unprincipledmasculinity practiced by characters like Elesin Oba and Simon Pilkings, which is destructive, not only to other people but alsoultimately to its practitioners. By portraying abusive characters and their challenges in Nigerian drama, this paper situates thearguments of the masculinist theory within the textual construct of the play with detailed rationalization. One major finding ofthe paper is that masculinity is largely a defense mechanism used to cover up for the deep sense of inadequacy in the characterswho advance it.
Bitcoin Gold, Litecoin Silver: An Introduction to Cryptocurrency’s Valuation and Trading Strategy
Authors: Yu Haoyang , Sun Yutong , Liu Yulin , Zhang Luyao
Published: August 2023

Historically, gold and silver have played distinct roles in tra- ditional monetary systems. While gold has primarily been revered as a superior store of value, prompting individuals to hoard it, silver has com- monly been used as a medium of exchange. As the financial world evolves, the emergence of cryptocurrencies has introduced a new paradigm of value and exchange. However, the store-of-value characteristic of these digital assets remains largely uncharted. Charlie Lee, the founder of Lite- coin, once likened Bitcoin to gold and Litecoin to silver. To validate this analogy, our study employs several metrics, including unspent transac- tion outputs (UTXO), spent transaction outputs (STXO), Weighted Average Lifespan (WAL), CoinDaysDestroyed (CDD), and public on-chain transaction data. Furthermore, we’ve devised trading strategies centered around the Price-to-Utility (PU) ratio, offering a fresh perspective on crypto-asset valuation beyond traditional utilities. Our back-testing re- sults not only display trading indicators for both Bitcoin and Litecoin but also substantiate Lee’s metaphor, underscoring Bitcoin’s superior store-of-value proposition relative to Litecoin. We anticipate that our findings will drive further exploration into the valuation of crypto assets. For enhanced transparency and to promote future research, we’ve made our datasets available on Harvard Dataverse and shared our Python code on GitHub as open source.
Koefisien Reliabilitas dengan Teori Generalizabilitas (G-Theory) two-Facet i:h:p design
Authors: Hapsan Amran , Rosnawati Raden
Published: August 2023

Artikel ini membahas estimasi pada keandalan atau reliabilitas rubrik pengamatan petani yang merupakan bagian dari pengukuran pengairan yang diberikan menggunakan teori generalizability (G-Theory). Pengamatan ini dilakukan dengan mengamati pengairan yang diberikan kepada beberapa varietas kedelai. Pada estimasi ini, menggunakan data 4 varietas kedelai (P) dan terdiri dari tiga pengamat sebagai rater (R) atau penilai. Tiap rater menilai seluruh perlakuan yang diberikan sejumlah 2 dengan perlakuan yang diberikan adalah pengairan tersebut. Hasil analisis estimasi keandalan menggunakan Teori G menunjukkan karakteristik instrumen pengamatan yang mencakup studi G dan Studi D dapat diketahui. Koefisien G untuk instrumen ini sebesar 0,96 dan keofisien D-Study adalah 1,0. Lebih jauh lagi analisis D Study menghasilkan kesimpulan bahwa untuk mencapai kesepahaman dan kesepakatan yang memenuhi tingkat observasi yang dapat diterima untuk faset yang lebih luas, yaitu >0,70, penilai masih dapat menggunakan beberapa aspek.
Which Large Language Model should You Use in Vietnamese Education: ChatGPT, Bing Chat, or Bard?
Authors: Quy Dao Xuan
Published: August 2023

This paper aims to determine the most suitable large language model (LLM) among ChatGPT, BingChat, and Bard for Vietnamese educators and students. The results show that ChatGPT and BingChat exhibit similar performances and outperform Bard in mathematics. In literature, ChatGPT performs better than BingChat and Bard. However, BingChat demonstrates superior performance compared to ChatGPT and Bard in English. All three LLMs demonstrate relatively comparable performances in physics. For biology, BingChat and Bard outperform ChatGPT. Notably, Bard outperforms both ChatGPT and BingChat in chemistry. In the domain of social sciences, both BingChat and Bard exhibit comparable and better performances than ChatGPT. These findings provide valuable insights for educators and students in Vietnamese high schools in selecting suitable LLM for specific subjects.
Our first Anthroponomic task: Remove the infrared pea soup
Authors: MacIntyre Ferren
Published: August 2023

Some underappreciated aspects of the climate. [Idealization]: Earth has a partially IR-opaque 5-km-deep tropospheric layer whose (slowly rising) top radiates waste heat to space at the -18°C Stefan-Boltzmann temperature and below which the temperature increases 33°C by adiabatic compression. Fossil-fuel CO2 has deepened this layer by 308 m and added 2°C of Anthropogenic Global Warming. [Hypothesis]: The final Vostok glaciation was aborted anthropogenically (it was the “Little Ice Age”): we are in terra incognita because [Fact] the 800,000 years of ice-core and sea-floor climate-proxy data describe a world whose mobile CO2 inventory was 300 ppm, largely irrelevant to a world with >424 ppm. [Fact]: The climate-disinformation policy of the U.S. far right promotes "quantum saturation" to claim that global warming is ignorable. Such saturation of CO2 may occur in spectrophotometer tubes, but not in the free atmosphere. Warming will increase as long as we emit CO2. [Fact]: The threat is existential, the necessary fix is to return the atmospheric burden of CO2 to 300±20 ppm, and there are helpful things we should have been doing for 50 years.
Eleven years of student replication projects provide evidence on the correlates of replicability in psychology
Authors: Boyce Veronica , Mathur Maya B , Frank Michael C.
Published: August 2023

Cumulative scientific progress requires empirical results that are robust enough to support theory construction and extension. Yet in psychology, some prominent findings have failed to replicate, and large-scale studies suggest replicability issues are widespread. The identification of predictors of replication success is limited by the difficulty of conducting large samples of independent replication experiments, however: most investigations re-analyse the same set of ~170 replications. We introduce a new dataset of 176 replications from students in a graduate-level methods course. Replication results were judged to be successful in 49% of replications; of the 136 where effect sizes could be numerically compared, 46% had point estimates within the prediction interval of the original outcome (versus the expected 95%). Larger original effect sizes and within-participants designs were especially related to replication success. Our results indicate that, consistent with prior reports, the robustness of the psychology literature is low enough to limit cumulative progress by student investigators.
MEMPELAJARI PERAN SOSIAL WANITA DALAM OLAHRAGA DENGAN KONTROVERSI CITRA PATRIARKI DIMASYARAKAT
Authors: Zani Yulia , Eri Barlian  , Padli
Published: August 2023

Women are known as people who have to obey men so that the stigma in women's society as people who have to stay at home and take responsibility in it, in accordance with the existing stigma, people are starting to know sports and women have managed to get gold as proof that women are not weak. With his character, women in sports are not as thought. Until now, women have been considered to complement the zuforia of competitions, such as cheering and cheerleading, but so far many women have been able to show achievements. This research aims to find out the social role of women in sports with the patriarchal image controversy. The method used in this research is descriptive qualitative using observation, interviews and literacy. Based on the results and discussion through women's sports, character in sports can be formed, as well as the values ​​of cooperation, sportsmanship, honesty, responsibility. The conclusion in this research is that women are indispensable in sport by adopting an attitude of responsibility, fairness and sportsmanship.
Keyword: sosial role of women, patriarchal image, sport
PERSEPSI MAHASISWA PENJASKESREK UNIVERSITAS RIAU KELAS B DALAM PENGUNAAN GOOGLE MEET DAN ZOOM PADA PEMBELAJARAN DARING SELAMA MASA PANDEMI
Authors: Meri Meri Andriani , Zainur  , Ardiah juita
Published: August 2023

Masalah dalam penelitian ini adalah pada kebijakam pemerintah yang mengharuskan semua lembaga pendidikan di seluruh Indonesia untuk melakukan kegiatan belajar mengajar secara daring dikarenakan sedang terjadi wabah covid-19, Tujuan dari penelitian ini adalah untuk mengetahui bagaimana persepsi mahasiswa penjaskesrek Universitas Riau angkatan 2019 kelas b dalam pengunaan google meet dan zoom dalam pembelajaran daring. Populasi pada penelitian ini adalah Mahasiswa penjaskesrek Universitas Riau angkatan 2019 kelas b yang menggunakan teknik total sampling yang berjumlah 38 mahasiswa. Instrument yang digunakan dalam penelitian ini adalah dengan mengunakan lembar angket. Teknik pengumpulan data pada penelitian ini menggunakan angket, wawancara dan dokumentasi. Teknik analisis data menggunakan presentase %. Berdasarkan uraian hasil penelitian dan pembahasan maka penelitian yang dilakukan  dapat disimpulkan dari seluruh jumlah yang akumulasikan pada kuisioner dari 38 mahasiswa mendapatkan 93,85% dengan kategori sangat baik.
Kata Kunci: Pembelajaran daring, Google Meet, Zoom
THE EFFECT OF ZIG ZAG RUN TRAINING ON THE AGILITY OF FOOTBALL PLAYERS IN SSB WONER
Authors: Hafiz Abdul Hafiz , Ramadi  , Agus Prima Aspa
Published: August 2023

The problem in research is the lack of agility that students have at SSB Woner. the purpose of this study was to determine the effect of the zig zag run exercise on the agility of SSB Woner students. The population in this study were all students aged 15 years using a total sampling technique, amounting to 15 students. This type of research is, using a one-group pre-test-post-test design. From the results of this study it can be concluded that the average pre-test was 19.13 and the post-test was 17.05, based on the normality test LoMax pretest was 0.1329 <L table 0.22, and LoMax posttest was 0.1224  ttable. It can be concluded that the zigzag run exercise (X) has an influence on agility (Y) on soccer players in SSB Woner
Keyword: zig zag run training, agility, soccer