bluuebunny/crossref_metadata_2025 huggingface dataset:
Multi-Objective Genetic Algorithm-Based Technique for Achieving Low-Power VLSI Circuit Partition
Authors: Roy Sharadindu , Banerjee Siddhartha
Published: November 2023

Minimizing the power consumption of electronic systems is one of the most critical concerns in the design of integrated circuits for very large-scale integration (VLSI). Despite the reality that VLSI design is known for its compact size, low power, low price, excellent dependability, and high functionality, the design stage remains difficult to improve in terms of time and power. Several optimization algorithms have been designed to tackle the present issues in VLSI design. This study discusses a bi-objective optimization technique for circuit partitioning based on a genetic algorithm. The motivation for the proposed research is derived from the basic concept that, if some portions of a circuit's system are deactivated during the processor's idle time, the circuit's power consumption is automatically reduced. To reduce the overall system's power consumption, maximization of sleep time and minimization of net cuts are required. To achieve these, an effective fitness function has been constructed in such a way that the balance criteria are also maintained. The approach has been tested on a set of net lists from the ISPD'98 benchmark suite, each containing 10 to 30 nodes. The experimental results are compared with two existing methods that clearly indicate the acceptability of the suggested method. The suggested strategy achieves an average reduction of 24.69% and 31.46% for net cut, whereas average extensions of 15.20% and 12.31% are observed in sleep time when compared with two existing methods. The proposed method also achieves an average power efficiency of 14.98% and 12.09% with respect to these two state-of-the-art methods.
A Lightweight Image Encryption Algorithm Based on Elliptic Curves and a 5D Logistic Map
Authors: Rashid Abdullah A. , Hussein Khalid A.
Published: November 2023

Cryptography can be thought of as a toolbox, where potential attackers gain access to various computing resources and technologies to try to compute key values. In modern cryptography, the strength of the encryption algorithm is only determined by the size of the key. Therefore, our goal is to create a strong key value that has a minimum bit length that will be useful in light encryption. Using elliptic curve cryptography (ECC) with Rubik's cube and image density, the image colors are combined and distorted, and by using the Chaotic Logistics Map and Image Density with a secret key, the Rubik's cubes for the image are encrypted, obtaining a secure image against attacks. ECC itself is a powerful algorithm that generates a pair of public and private elements, and we generate secret key values ​​with the help of the above key pair. This algorithm is applied to smart cards, sensors, and wireless network security. Whereas, the test results indicate that the highest value for PSNR is 7.9641, while the highest values for UACI and NPCR are 35.3721 and 99.9992, respectively. The encoding and decoding speeds reach 0.1561 and 0.1532 seconds, respectively.
Attention Mechanism Based on a Pre-trained Model for Improving Arabic Fake News Predictions
Authors: Wotaifi Tahseen A. , Dhannoon Ban N.
Published: November 2023

Social media and news agencies are major sources for tracking news and events. With these sources' massive amounts of data, it is easy to spread false or misleading information. Given the great dangers of fake news to societies, previous studies have given great attention to detecting it and limiting its impact. As such, this work aims to use modern deep learning techniques to detect Arabic fake news. In the proposed system, the attention model is adapted with bidirectional long-short-term memory (Bi-LSTM) to identify the most informative words in the sentence. Then, a multi-layer perceptron (MLP) is applied to classify news articles as fake or real. The experiments are conducted on a newly launched Arabic dataset called the Arabic Fake News Dataset (AFND). The AFDN dataset contains exactly 606912 news articles collected from multiple sources, so it is suitable for deep learning requirements. Both simple recurrent neural networks (S-RNN), long short-term memory (LSTM), and gated recurrent units (GRU) are used for comparison. According to evaluation criteria, our proposed model achieved an accuracy of (0.8127), which is the best and highest accuracy among the deep learning methods used in this work. Moreover, the performance of our proposed model is better compared to previous studies, which used the AFND.
PENERAPAN MODEL PEMBELAJAAN COOPERATIVE LEARNING TIPE STAD UNTUK MENINGKATKAN PRESTASI BELAJAR SISWA KELAS V SDN 2 SINDUWATI
Authors: I Wayan Buda Patrawan
Published: November 2023

Penelitian ini disusun bertujuan untuk meningkatkan prestasi belajar Pendidikan Agama Hindu melalui penerapan model pembelajaran STAD pada siswa Kelas V. Penelitian ini adalah penelitian tindakan kelas  yang dilaksanakan dalam dua siklus. Subjek penelitian adalah siswa Kelas V  semester I SD Negeri 2 Sinduwati sebanyak 13 orang. Pengumpulan data dalam penelitian ini dilakukan dengan metode tes. Data yang di dapat dari metode tes dianalisis dengan teknik deskriptif kuantitatif. Hasil penelitian menunjukkan bahwa penerapan pendekatan kontekstual dapat meningkatkan prestasi belajar Pendidikan Agama Hindu, hal ini menunjukkan hasil tes siswa tiap akhir siklus. Pada pra siklus rata-rata diperoleh yaitu 68 pada siklus I menjadi 76 dan pada siklus II menjadi 82. Persentase ketuntasan hasil belajar Pra Siklus sebesar 21% pada Siklus I 53% dan Siklus II Menjadi 93%. Sebagaimana paparan data tersebut dapat ditarik kesimpulan bahwa penerapan model pembelajaran Cooperative Learning Tipe STAD telah berhasil meningkatkan prestasi belajar pada mata pelajaran Pendidikan Agama Hindu pada siswa Kelas V di SD Negeri 2 Sinduwati.
Adapting or Adopting Digitisation: The Methodist Church of Southern Africa (MCSA) during Covid-19 Lockdown (2019 to 2022)
Authors: Madise Mokhele
Published: November 2023

The Covid-19 pandemic became an eye-opener for the church to reconsider technology due to the lockdown and its impact on the church. From 2019, when the World Health Organisation (WHO) declared Covid-19 as a global pandemic, the global church space and its functions were greatly affected. This forced the church to look at alternatives to ensure that it continued to maintain its sacred space as well as its offering of worship services to all Christian believers. The church needed to find new ground to perform its functions. Telephones, newspapers, radios, as well tape recorders have long been in existence and were already explored by the church, but during the Covid-19 pandemic, the main question was: How does the church enhance its own space, and how does it function in the new era of digital technology? The existence of social media meant that the church had to go digital and enhance its offerings of worship on other network systems rather than the traditional. The internet eased this movement by the church from the traditional way of doing things. This article will focus on how the church in South Africa began to embrace the digital world in enhancing its mission to the larger society, as 4IR was at the same time making inroads in public and private spaces. Popular social media platforms (such as Facebook, Zoom, Microsoft Teams, Twitter, WhatsApp, and so forth) were providing much-needed alternatives at a critical point in history—the Covid-19 pandemic. These platforms became the alternative means to ensure that worship services continued, as well as other church gatherings such as synods, councils, retreats and conferences. The spread of Covid-19 afforded the church enough room, time and space to venture into expanding its mission digitally, thereby entering into the world of technology that was new to it.
The role of crop rotation in the economy of sunflower production of the Russian Federation
Authors:   V.S. Pustovoit All-Russian Research Institute of Oil Crops, Krivoshlykov K.M. , Makarskaya E.Yu. ,   V.S. Pustovoit All-Russian Research Institute of Oil Crops
Published: November 2023

On the territory of the Russian Federation, the main cultivated oilseed crop is sunflower. The share of acreage under this agriculture has been steadily growing in recent years. In 2022, they increased by 280 thousand hectares and amounted to 10.0 million hectares, while over the period from 2013 to 2022, the acreage occupied by the crop increased by 38%. According to the Ministry of Agriculture of Russia, in 2022 the sunflower harvest increased by 4.5% compared to 2021 and amounted to 16.4 million tons, which in turn allowed to increase the production of sunflower oil by 14%. Sunflower seeds are in stable demand from domestic oil extraction plants, as well as on the international market, which in turn encourages farmers to increase the area of sowing. However, an increase in the share of sunflower in the structure of sown areas above the scientifically justified level is associated with a real risk of reducing crop yields and reducing the productivity of all crop rotations. According to the research result, the highest crop yield was obtained in the regions where the scientifically justified proportion of sunflower in the structure of crops is maintained.
The assessment of a complex treatment of soybean seeds with fungicides and inoculator
Authors:   V.S. Pustovoit All-Russian Research Institute of Oil Crops, Kurilova A.D. , Bushneva N.А. ,   V.S. Pustovoit All-Russian Research Institute of Oil Crops
Published: November 2023

The Russian and foreign scientists have already proved an important role of the symbiosis of rhizobia and soybean through which plants obtain the neces-sary nitrogen amount from the air for effective growth and protein synthesis. At the same time, they stated the seed treatment with some fungicides sup-press the rhizobia growth and lowered the formation of nitrogen-fixing nodules in fields. Now, the search of fungicides effective against pathogens but not suppressing rhizobia at joint application is actual in an agrotechnological system. In 2020–2021, we treated soybean seeds with an inoculant Hycout su-per soya based on a bacterium Bradyrhizobium japonicum. It did not reduce soybean plants infes-tation with diseases but caused additional seed yield 0.37 (2020) and 0.27 t/hа (2021) through the symbi-otic activity. The combined application of fungicides and an inoculant showed their effectiveness against fusarium wilt. The soybean seed treatment with Max-im, CS, Delit Pro, CS, and Tebu 60, OE combined with the inoculant did not suppress the formation of nitrogen-fixing nodules on soybean plant roots and did not reduce their air-dry weight. The highest amount (33 and 83 pcs./plant) and weight (0.09 and 0.32 g/plant) of nodules are noted on plant roots in a variant when treated the seeds with a mix Maxim, CS + inoculant, L.
Púrpura trombocitopênica grave em pré-escolar da amazônia ocidental
Authors: Kassem Riad Joekel , Medeiros Neta Leuda Leal de , Negraes Ricardo Torres , Azevedo Filipe Souza de
Published: November 2023

Objetivo: Descrever a evolução clínica, tratamento proposto e resolução do caso de um paciente com púrpura trombocitopênica idiopática. Detalhamento do caso: Paciente masculino 3 anos de idade apresentou após uma infecção viral quadro de petéquias e hematomas em membros inferiores. Ao exame físico apresentava-se hipocorado e em regular estado geral. Aos exames laboratoriais havia plaquetopenia grave, sendo diagnosticado com púrpura trombocitopênica grave e instituído tratamento com metilprednisolona mais imunoglobulina. Após alguns dias de internação e tratamento, apresentou melhora do quadro e recebeu alta médica. As descrições do caso são consoantes aos achados na literatura, discordando apenas da idade média de apresentação do caso, uma vez que, o paciente em questão é alguns anos mais jovem que a média. Considerações finais: Observa-se que o rápido diagnóstico e intervenções propostas foram conformes as indicações encontradas na literatura, mostrando que a equipe possui preparo e se mantém atualizada, fato que é fundamental para o bom manejo clínico e resolutividade do caso.
Transformations of surface-applied urea in an alkaline calcareous soil as affected by urease inhibitor N-(n-butyl) thiophosphoric triamide at different temperatures
Authors:   Soil & Environmental Sciences Division, Nuclear Institute for Agriculture & Biology, Jhang Road, Faisalabad 38000, Pakistan, Mahmood Tariq , Ali Rehmat ,   Soil & Environmental Sciences Division, Nuclear Institute for Agriculture & Biology, Jhang Road, Faisalabad 38000, Pakistan, Yaqub Muhammad ,   Soil & Environmental Sciences Division, Nuclear Institute for Agriculture & Biology, Jhang Road, Faisalabad 38000, Pakistan
Published: November 2023

Effects of the urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) on transformations of urea N in an alkaline calcareous soil were investigated at different temperatures. The urease inhibitor was incorporated in urea granules at 7 different concentrations ranging from 0 to 6% of N. The amended urea granules were applied at 250 mg N kg−1 on the soil surface and incubated for 20 days at 18, 25 and 35°C. Effects of NBPT on NH3 volatilization from the surface applied urea were also investigated at different temperatures. In the absence of urease inhibitor, most (96–98%) of the applied urea was hydrolyzed within 5 days. During this period, NBPT significantly inhibited urea hydrolysis at all temperatures (6–46% reduction); the extent of inhibition increased with increasing NBPT application rate and with decreasing temperature. After 10 days, almost all urea was hydrolyzed at all temperatures with NBPT applied up to 2% of N, whereas up to 23% inhibition was recorded with higher NBPT application rates. In the absence of NBPT, 23–41% of the applied urea-N was lost as NH3 during 20 days, with the highest loss recorded at 35°C. However, the application of NBPT significantly reduced NH3 volatilization loss at all temperatures; the beneficial effect of NBPT increased with increasing application rate. Results suggested that application of the urease inhibitor NBPT can cause up to 50% reduction in NH3 volatilization loss when applied at economically feasible application rates ranging from 0.5% of urea-N (during winter season; 18°C) to 1% of urea-N (during fall and summer seasons; 25–35°C).
Efficacy of cadmium tolerant bacteria in combination with jasmonic acid to alleviate cd-toxicity in cauliflower
Authors:   Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, 63100, Bahawalpur, Pakistan, Shahid Shumila , Hussain Azhar ,   Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, 63100, Bahawalpur, Pakistan, Ahmad Maqshoof ,   Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, 63100, Bahawalpur, Pakistan, Jamil Moazzam ,   Department of Soil Science, Faculty of Agriculture and Environment, The Islamia University of Bahawalpur, 63100, Bahawalpur, Pakistan
Published: November 2023

Application of untreated wastewater for vegetable production in peri-urban areas enters into the food chain leading to compromised human health. The present study was planned to evaluate the potential of cadmium (Cd) tolerant bacterial strains in combination with foliar application of Jasmonic acid (JA) under Cd stress. The Cd tolerant bacterial strains were isolated from wastewater and characterized for the production of exopolysaccharides (EPS), siderophore, and indole acdetic acid (IAA) under in vitro studies. The four most efficient strains SS5, SS7, SS8, and SS10 were selected based on growth-promoting traits and further evaluated with different levels of JA (20 μmol L-1 and 40 μmol L-1) in jar trial. Cauliflower (hyperaccumulator) was used as a test crop with Cd levels (0 and 150 mg kg-1). Our results depicted that the use of consortium (SS7+SS8) along with a foliar application of JA (40 μmol L-1) significantly improved shoot dry weight (15.5%), root dry weight (28.4%), shoot length (23.7%), root length (37%), superoxide dismutase (29.8%), peroxidase dismutase (29.7%), catalase (31.7%) and POX (29.2%). However, 29 and 26% reduction in Cd concentration in shoots and roots was observed, respectively. It was concluded that the Klebsiella strains SS7 and SS8 with foliar application of JA is a potential biofertilizer and a phyto-stabilizer for metal-contaminated soils and recommended to reduce the Cd toxicity among crop plants.
Ephedra shrubs facilitate local arthropod communities in the Andean Puna: Implications for conservation and habitat restoration
Authors: Yela Natalia I. , Torréns Javier , Díaz Casas Antonella Y. , San Martín Juca A. , Aranda-Rickert Adriana
Published: November 2023

In high-altitude deserts, the vegetation is spatially structured as a mosaic of patches with vegetation and interpatches of bare soil. Shrub patches create microhabitats that facilitate the persistence of other organisms by ameliorating climate extremes and increasing soil nutrients and moisture. Although this facilitative effect has been studied mainly on shrub understorey plants, the positive influence of desert shrubs may extend to the local arthropod community. In this study, we examined the hypothesis that plant facilitation by the desert shrub species Ephedra multiflora and E. breana positively influences the epigeal arthropod communities of the Andean Puna. We found that arthropod abundance, richness and diversity were all higher on Ephedra shrub microsites relative to paired open microsites. The harsh environmental conditions prevailing in the Puna ecosystems and the protection and resources provided by plants could jointly explain the positive influence of Ephedra shrubs over the arthropod community. The growth of tourism and the boom for lithium, as well as the increasing drought expected for the region under climate change scenarios, strengthens the importance of conserving shrub cover in these ecosystems to sustain biodiversity and ecosystem functioning. Our results are also relevant for restoration projects that consider the whole biological community, where using Ephedra as foundation shrubs to support desert endemics could be a strategy for land restoration.
Structural and kinetic insights into the stereospecific oxidation of 2,3-dihydroxypropanesulfonate by DHPS-3-dehydrogenase (HpsN) from Cupriavidus pinatubonensis
Authors: Burchill Laura , Kaur Arashdeep , Nastasovici Artur , Lee Mihwa , Williams Spencer
Published: November 2023

2,3-Dihydroxypropanesulfonate (DHPS) and sulfolactate (SL) are environmentally important organosulfur compounds that play key roles as metabolic currencies in the sulfur cycle. Despite their prevalence, the pathways governing DHPS and SL production remain poorly understood. In this study, we explore the DHPS-3-dehydrogenase CpHpsN from Cupriavidus pinatubonensis, a bacterium capable of utilizing DHPS as a sole carbon source. Kinetic analysis of CpHpsN reveals a strict preference for R-DHPS, catalyzing its 4-electron oxidation to R-SL, with high specificity for NAD+ over NADP+. The 3D structure of CpHpsN, elucidated through X-ray crystallography, unveils a fold akin to E. coli histidinol dehydrogenase (HisD), albeit with key differences around the Zn2+ centre that provide the structural basis for substrate specificity. These differences arise from a change in position of a protein loop that is a key sequence that distinguishes HpsN and HisD homologues. Site-directed mutagenesis pinpoint Glu318, His319, and Asp352 as active site residues important for the catalytic activity of CpHpsN. Taxonomic and pathway distribution analysis reveals the prevalence of HpsN within different pathways of DHPS catabolism and across bacterial classes including Alpha-, Beta-, Gamma-, and Deltaproteobacteria and Desulfobacteria, emphasizing its importance in the biogeochemical sulfur cycle.
Mineral fusion via dehydration-induced residual stress: from gels to ceramic monoliths
Authors: Li Bo , Yan Jie , Li Hongkun , Wu Haikun , Gu Jialun , Dong Weixia , Wang Peiyu , Li Lanxi , Tang Xinxue , Wang Xunli , Ren Yang , Lu Jian , Li YangYang
Published: November 2023

Man-made ceramics generally undergo harsh manufacturing conditions (e.g., high-temperature sintering). In contrast, mineral structures with superior mechanical strength (e.g., teeth) are generated in organisms under mild biocompatible conditions. Herein, we report that ceramic objects can be directly produced and strengthened by drying purely inorganic gels (PIGs), mimicking the biological tactic of fabricating continuous monoliths from hydrated amorphous precursors. The overall process is easy and biocompatible in that solutions of common iron and molybdate salts are mixed to generate a PIG, which, upon drying under mild temperature, turns into a strengthened ceramic block that displays a high mechanical performance. Analogous to the well-known Prince Rupert’s drop reinforced by residual stress upon quenching, the uneven volume shrinkage from the outside inwards during dehydration builds up residual stress that enables amorphous mineral fusion and strengthening. Furthermore, a dramatic bandgap reduction is achieved in the dried objects due to local structural changes of the Fe atoms under residual stress. This PIG-dehydration approach holds promise for green ceramic manufacturing and offers insights into biomineralization puzzles.
Gravity separation of fine itabirite iron ore using the Reflux Classifier – Part II – Establishing the underpinning partition surface
Authors: Rodrigues Armando , Delboni Jr Homero , Zhou James , Galvin Kevin
Published: November 2023

This work assessed the potential of a single stage Reflux Classifier to upgrade itabirite iron ore to high grade at satisfactory recovery. Part I reported on the detailed findings of the experimental program and the physical transport of the particles through the system. A key purpose of the present paper was to deduce the underlying partition surface from relatively basic feed information on the Fe assays obtained as a function of the particle size. Conversion of the feed data into a simple binary description based on the density of hematite and density of silicates was used. This approach then provided a basis for applying the partition surface to a given feed to predict the separation performance. Data from the experiments were compared to values predicted from the partition surface. A least squares objective function was used to deduce the parameters governing the partition surface. Across 12 of the experiments, the key exponent, n, governing the partition surface was found to be 0.26+/-0.02. This result was in very good agreement with the value of 0.28 determined previously. The second key parameter, the Ep, was also determined for each of the experiments. The lowest Ep, found to be 365 kg/m3 for a low slimes viscosity, was also in good agreement with the result reported previously for a deslimed feed. This work provides confidence in the application of the partition surface to predict similar dense mineral separations, and stronger insights into the mechanisms responsible for the separation.
“Me enteré por Instagram”. Consumo y competencias mediáticas de jóvenes de sectores populares y medios en Chile
Authors: Lazcano-Peña Daniela , Bustamante Pavez Guillermo , Lagos Lira Claudia , Cabalín Quijada Cristián
Published: November 2023

Caracterizamos las competencias mediáticas y el consumo informativo de una muestra de 79 estudiantes de entre 15 y 17 años, de establecimientos educacionales subvencionados y municipalizados de las regiones de Antofagasta, Valparaíso y Metropolitana (Chile). A través de entrevistas grupales, los participantes muestran una mirada crítica sobre los medios de comunicación tradicionales (prensa escrita, radio, televisión) y tienen mayor confianza en el funcionamiento algorítmico de las redes sociales, en especial Instagram, como fuente informativa. Los resultados abren desafíos para la alfabetización mediática de jóvenes en contextos educativos y extracurriculares.
EuroMed Cancer Network contributions to eliminating cervical cancer in low- and middle-income Mediterranean countries
Authors: Jaramillo Lina , Camussi Elisa , Dotti Marta , Ferrante Gianluigi , Segnan Nereo , Castagno Roberta , Ullrich Andreas , Giordano Livia
Published: November 2023

Background: Cervical cancer places a significant burden on low- and middle-income countries (LMICs). The EuroMed Cancer Network (EuMedCN) brings together cancer experts and stakeholders from the Mediterranean countries to promote sustainable cancer screening and support implementation of the WHO Global Strategy to Accelerate the Elimination of Cervical Cancer as a Public Health Problem. Aim: To highlight the constructive role of EuMedCN in mitigating inequalities in access to cervical cancer prevention and screening across the Mediterranean LMICs. Methods: Through its workshops and meetings, EuMedCN members discussed new developments in cancer prevention and control, and how best to translate the WHO Global Strategy to Accelerate the Elimination of Cervical Cancer as a Public Health Problem into public health policies in the Mediterranean LMICs. This led to targeted actions in the selected countries. Results: Seven priority actions were implemented to improve cervical cancer screening in the Mediterranean LMICs. EuMedCN supported organized screening, new pilot technologies and enhancement of evaluation systems. Integrating cervical cancer screening into other disease programmes and fostering multidisciplinary networks were promoted as key to achieving targets of the WHO global strategy. Conclusion: International networks, such as EuMedCN, have the potential to bring together experts and stakeholders to share experiences and catalyse resource mobilization. They can support affordable and synergistic solutions for cervical cancer prevention.
Pengaruh Media Audio Visual Terhadap Hasil Belajar Tematik Siswa Kelas IV SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone
Authors: Satriani, DH Satriani, DH , Jauhar Sitti , Ayu Lestari Ayu Lestari
Published: November 2023

Penelitian ini adalah penelitian kuantitatif jenis pre- eksperimen yang untuk mengetahui pengaruh media audio visual terhadap hasil belajar siswa kelas IV SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone. Desain penelitian yang digunakan adalah control group design pretest-postest. Populasi dalam penelitian ini yaitu siswa kelas IV A dan IV B SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone dengan sampel sebanyak 55 siswa yang dipilih berdasarkan teknik sampling jenuh. Teknik Analisis data yang digunakan adalah analisis statistik deskriptif dan inferensial. Hasil belajar siswa kelas IV SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone sebelum diajar menggunakan media audio visual berada pada kategori baik.Hasil belajar siswa kelas IV SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone sesudah diajar menggunakan media audio visual berada pada kategori sangat baik. Hasil penelitian menunjukkan terdapat pengaruh sebelum dan sesudah pembelajaran menggunakan media audio visual terhadap hasil belajar siswa kelas IV SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone. Hasil belajar siswa kelas IV SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone sebelum dan sesudah diajar menggunakan media audio visual berbeda secara. Ini berarti penggunaan media audio visual berpengaruh terhadap hasil belajar tematik siswa kelas IV SDN 24 Macanang Kecamatan Tanete Riattang Barat Kabupaten Bone.
PENGEMBANGAN MEDIA PEMBELAJRAN BERBASIS AUDIO UNTUK SISWA PENDERITA TUNA NETRA DI SLB-A YAPTI MAKASSAR
Authors: Saputra Rimba , Asrib Ahmad Rifqi , Mappalotteng Abdul Muis
Published: November 2023

Tujuan penelitian ini dilakukan untuk (1) Menghasilkan media pembelajaran berbasis audio untuk siswa penderita tuna netra di SLB-A YAPTI Makassar, (2) Mengetahui kualitas kelayakan Media Pembelajaran Berbasis Audio Untuk Siswa Penderita Tuna Netra menggunakan pengujian standar ISO/IEC 9126. Jenis penelitian yang digunakan dalam penelitian ini adalah Research and Development (R&D) dengan menggunakan model pengembangan Research and Development (ADDIE), terdiri dari 5 (lima) tahap yaitu, yaitu analyze (analisis), design (perancangan), develop (pengembangan), implement (implementasi), dan evaluate (evaluasi). Subjek dalam penelitian ini adalah siswa penderita tuna netra dan guru di SLB-A YAPTI Makassar. Data dikumpulkan melalui studi pustaka, angket dan dokumentasi. Data dianalisis menggunakan metode pengujian perangkat lunak ISO/IEC 9126 yaitu meliputi aspek functionality, usability, portability dan maintainability. Pada aspek functionality menggunakan test caseoleh dua ahli system, aspek usability menggunakan angket kuisioner, aspek portability menggunakan berbagai jenis smartphone dan aspek maintainability menguji perangkat lunak pada aspek analyzability dan changebility.Hasil dari penelitian ini adalah media pembelajaran berbasis audio untuk siswa penderita tuna netra. Hasilpengujian aspek functionality sistem dinilai baik karena X mendekati 1, aspek usability memperoleh nilai 65 dalam kategori “sangat tinggi”, aspek portability tidak memiliki error diberbagai jenis smartphone,aspek maintainability menunjukkan sub-karakteristik yang dinilai pada aplikasi dari sisi maintainability sudah baik. Sehingga dapat disimpulkan bahwa kualitas perangkat lunak sudah memenuhi kriteria kualitas perangkat lunak.
PENGARUH KINERJA GURU PRODUKTIF TERHADAP MINAT BELAJAR DAN KREATIVITAS SISWA PROGRAM KEAHLIAN TATA BUSANA DI SMK NEGERI 2 GOWA
Authors: Darnita Devi , Idkhan Muhammad Andi , Aisyah Aisyah
Published: November 2023

Penelitian ini bertujuan untuk mengetahui tingkat kinerja guru produktif, tingkat minat belajar, dan tingkat kreativitas serta pengaruh kinerja guru produktif terhadap minat belajar, dan pengaruh kinerja guru produktif terhadap kreativitas siswa. pada Program Studi Tata Busana SMKN 2 Gowa tahun ajaran 2020/2021. Jenis penelitian ini adalah penelitian kuantitatif, dan teknik pengambilan sampel yang digunakan adalah teknik proportional cluster random sampling dengan jumlah sampel 64 responden. Metode pengumpulan data menggunakan observasi, dokumentasi, dan angket. Hasil penelitian menunjukkan bahwa 56,3% kinerja guru dalam kategori tinggi, 68,8% siswa dalam minat belajar sedang, dan 57,8% siswa berada pada tingkat kreativitas sedang. Berdasarkan hasil penelitian, secara parsial kinerjaguru berpengaruh signifikan terhadap minat belajar dengan persentase 28,2%, sedangkan kinerja guru tidak berpengaruh terhadap kreativitas siswa.
PENGARUH PEMBELAJARAN KOMPETENSI DASAR KETERAMPILAN, PRAKTIK KERJA LAPANGAN, DAN SELF EFFICACY TERHADAP KESIAPAN KERJA SISWA DI SMK NEGERI TAKALAR TAHUN 2023
Authors: Ariyanto Ariyanto , Amiruddin Amiruddin , Amir Faizal
Published: November 2023

Penelitian ini bertujuan untuk mengetahui: (1) gambaran pembelajaran kompetensi dasar keterampilan siswa di SMK Negeri Takalar, (2) gambaran Praktik Kerja Lapangan (PKL) siswa di SMK Negeri Takalar, (3) gambaran Self-Efficacy siswa di SMK Negeri Takalar, (4) gambaran kesiapan kerja siswa di SMK Negeri Takalar, (5) pengaruh pembelajaran kompetensi dasar keterampilan terhadap kesiapan kerja siswa di SMK Negeri Takalar, (6) pengaruh Praktik Kerja Lapangan (PKL) terhadap kesiapan kerja siswa di SMK Negeri Takalar, (7) pengaruh Self-Efficacy Terhadap Kesiapan kerja siswa di SMK Negeri Takalar, (8) pengaruh secara bersama-sama pembelajaran kompetensi dasar keterampilan, praktik kerja lapangan, dan self efficacy terhadap kesiapan kerja siswa di SMK Negeri Takalar. Jenis penelitian ini adalah penelitian kuantitatif dengan metode Ex-post Facto. Sampel pada penelitian sebanyak 123 siswa kelas XII. Data penelitian diperoleh dengan teknik dokumentasi dan angket. Teknik analisis data yang dilakukan adalah analisis statistik desktiptif, statistik inferensial dan uji hipotesis menggunakan program SPSS. Hasil penelitian menunjukkan bahwa; (1) pembelajaran kompetensi dasar keterampilan siswa berada pada kategori “tinggi”, (2) Praktik Kerja Lapangan siswa berada pada kategori “tinggi”, (3) Self-Efficacy berada pada kategori “tinggi”, (4) kesiapan kerja siswa berada pada kategori “tinggi” (5) ada pengaruh pembelajaran kompetensi dasar keterampilan terhadap kesiapan kerja siswa di SMK Negeri Takalar, (6) ada pengaruh Praktik Kerja Lapangan (PKL) terhadap kesiapan kerja siswa di SMK Negeri Takalar, (7) ada pengaruh Self-Efficacy Terhadap Kesiapan kerja siswa di SMK Negeri Takalar, (8) adanya pengaruh secara bersama-sama antara pembelajaran kompetensi dasar keterampilan, praktik kerja lapangan, dan self efficacy terhadap kesiapan kerja siswa  di SMK Negeri Takalar.
Analysis of the Influence of Third Party Fund Composition, BI Rate, and Firm Size on Corporate Loan Prime Lending Rate
Authors: Romli Romli , Jayanti Dwi , Lestari Dwi Indah , Adi Patria Prasetio
Published: November 2023

Abstract

The purpose of this study is to ascertain if the basic credit interest rate (SBDK) for corporate credit in banking businesses listed on the Indonesia Stock Exchange in 2018–2021 is influenced by the TPF composition, the BI-7 Day Reverse Repo Rate (BI Rate), and the size of the company. This study employed secondary data for its data collection. Publications representing the completed version of the data are acquired. Regression coefficient research indicates that the factors related to current accounts and business size are negative, but the variables related to savings, deposits, and BI Rate are positive. Joint hypothesis testing results indicate that the basic credit interest rate is influenced by the size of the company, the BI Rate, and the makeup of third-party funds. The basic credit interest rate is influenced by the BI Rate and company size, but not by the makeup of third-party funds. The value of R square is 0.271. This demonstrates how the BI Rate, the size of the company, and the makeup of third-party funds affect the basic credit interest rate by 27.1%, with other factors influencing the remaining amount. 

 

Abstrak

Penelitian ini bertujuan untuk mengetahui apakah komposisi DPK, BI-7 Day Reverse Repo Rate (BI Rate), dan ukuran perusahaan berpengaruh terhadap suku bunga dasar kredit (SBDK) kredit korporasi pada perusahaan perbankan yang terdaftar di Bursa Efek Indonesia. pada tahun 2018 – 2021. Data yang digunakan dalam penelitian ini adalah data sekunder. Data yang diperoleh sudah dalam bentuk jadi berupa publikasi. Hasil penelitian koefisien regresi variabel transaksi berjalan dan ukuran perusahaan bernilai negatif, sedangkan variabel tabungan, deposito dan BI Rate bernilai positif. Hasil pengujian hipotesis bersama menunjukkan bahwa komposisi dana pihak ketiga, BI Rate, dan ukuran perusahaan berpengaruh terhadap suku bunga dasar kredit. Secara parsial BI Rate dan ukuran perusahaan berpengaruh terhadap suku bunga dasar kredit, sedangkan komposisi dana pihak ketiga tidak berpengaruh. Nilai R square sebesar 0,271. Hal ini menunjukkan bahwa komposisi dana pihak ketiga, BI Rate, dan ukuran perusahaan berpengaruh terhadap suku bunga dasar kredit sebesar 27,1% sedangkan sisanya dipengaruhi oleh faktor lain.
Prototipo de levitación neumática para enseñanza-aprendizaje de teoría de control
Authors: Reyes-Orta Mónica , Pérez-López Brian , Cuvas-Castillo Carlos , Villafuerte-Segura Raúl
Published: November 2023

Actualmente existen distintos tipos de levitación, entre ellas se encuentra la magnética, neumática, acústica, óptica y electrostática. Las cuales son el principio básico del funcionamiento de procesos reales tales como, la levitación del tren bala (tren de alta velocidad, TAV), simuladores de paracaidismo, manipulación y posicionamiento de materiales a través de la levitación, y demás. La levitación neumática es aquella en la que se suspende un objeto con el aire contrarrestando la fuerza gravitacional, para esto se suele implementar un sistema de control en lazo cerrado para mantener una posición de levitación deseada. En este trabajo se propone el diseño y la construcción de un prototipo de levitación neumática de bajo costo para la enseñanza-aprendizaje de conceptos de control clásico y la sintonización de leyes tipo PID.
Sistema de visión para detección de fallas de calidad en la identificación de etiquetas en una línea de producción del giro automotriz
Authors: Hernández-Laguna José Rodrigo , Romero-Guerrero Jorge Adan , Reta Carolina
Published: November 2023

Este artículo presenta la implementación de un sistema de visión para la detección de fallas en la identificación de etiquetas en una línea de producción de motores eléctricos de confort para vehículos. Anteriormente, la línea de producción dependía completamente de la inspección visual realizada por un operador. La solución propuesta considera tanto los aspectos técnicos del sistema de visión como otros factores clave para asegurar la calidad del proceso, como: las políticas de aseguramiento de calidad de las normas automotrices vigentes en México (IATF 6949:2016 e ISO9000), la mejora continua, la estadística, la ergonomía y la estandarización de procesos. Los resultados demuestran el éxito de la implementación. El sistema demostró ser efectivo al identificar las fallas de manera precisa; se logró una reducción significativa en el número prioritario de riesgo en el análisis y modo de efectos de falla; y se logró una reducción en la estadística de fallas internas y con el cliente, de 2021 a 2022.
Akurasi Data Stunting Melalui Kegiatan Pendataan Di Dusun Tengah Gampong Blang Pulo Oleh Mahasiswa KKNT Kelompok 2
Authors: Harinawati Harinawati
Published: November 2023

Kegiataan Pendataan Kependudukan terkait stunting dilakukan oleh 13 (tiga belas) mahasiswa KKN-T Kelompok 2 di Dusun Tengah Desa Blang Pulo, Kecamatan Muara Satu, Kota Lhokseumawe. Tujuan Pendataan Kependudukan ini untuk mengetahui data masyarakat desa Blang Pulo yang akan dikelompokkan sesuai kategori yaitu Pasangan Usia Subur (PUS), Wanita Usia Subur (WUS), Lansia, Remaja dan Balita. Metode pelaksanaan dalam program pencegahan stunting kepada masyarakat melalui pendataan di Dusun Tengah. Populasi dalam pendataan ini ialah seluruh masyarakat Dusun Tengah Desa Blang Pulo, terutama lansia, keluarga, remaja dan balita. Tahap pelaksanaan pendataan di bagi menjadi 4 yaitu tahap pertama pemberdayaan kader desa Blang Pulo yang difungsikan sebagai pendamping dan penyalur informasi, tahap kedua terjun langsung kesetiap rumah masyarakat di Dusun Tengah dan tahap terakhir merekap data yang dikategorikan menjadi PUS, WUS, Remaja, Balita dan Anak Stunting. Pendataan kependudukan ini dilakukan dalam rentang waktu satu bulan bertepatan pada tanggal 16 Mei 2023 s/d 16 Juni 2023 yang dilakukan oleh 13 (tiga belas) mahasiswa yang didampingi oleh beberapa kader desa Blang Pulo. Serta dampak dari adanya pendataan mengenai stunting ini masyarakat diharus lebih menjaga lingkungan dan perilaku berperan dalam menentukan status kesehatan pada keluarganya. Lingkungan yang sehat dan bersih akan menciptakan dampak positif terhadap kesehatan masyarakat yang optimal seperti kondisi perumahan, ketersediaan air bersih, fasilitas jamban yang layak, dan pembuangan sampah dan limbah dikelola dengan benar dan sehat. Lingkungan yang tidak sehat tidak hanyak berdamapk pada prevalensi stunting, namun akan menimbulkan berbagai faktor penyebab penyakit di masyarakat.
Aplikasi Pembuatan Shampo Berbahan Dasar Minyak Kemiri Pada Pesantren Hidayatullah Nisam, Aceh Utara
Authors: Sylvia Novi , Dewi Rozanna , Sulhatun Sulhatun , Nurlaila Rizka , Meriatna Meriatna , Bahri Samsul
Published: November 2023

Kemiri (Aleurites moluccana) merupakan potensi kekayaan hayati di Aceh Utara. Minyak kemiri adalah bahan organik yang berasal dari biji kemiri. Minyak kemiri mempunyai sifat mudah menguap dibandingkan dengan minyak lain. Minyak kemiri juga sering dimanfaatkan dalam industri sebagai shampo dan minyak rambut. Sejauh ini pemanfaatan kemiri di Aceh Utara hanya sebatas bumbu masak dan sebagai minyak rambut. Rambut adalah organ seperti benang yang tumbuh di kulit manusia. Rambut dikenal sebagai mahkota bagi kaum hawa dan tak dipungkiri juga bagi kaum adam, oleh karena itu ketika rambut menjadi rontok akan menjadi suatu masalah yang besar. Untuk mengatasi kerontokan rambut biasanya, minyak kemiri langsung digunakan pada kulit kepala. Namun pengabdian yang dilakukan ini bertujuan membuat shampo organik berbahan dasar kemiri untuk mengatasi kerontokan rambut. Pembuatan shampo ini dilaksanakan di pesantren Hidayatullah Nisam, sebagai wujud  kepedulian terhadap mutu pendidikan anak bangsa khususnya bagi santriwati Hidayatullah yang merupakan pesantren yatim yang berlokasi di kecamatan Nisam, Aceh Utara. Shampo ini dapat diimplementasikan oleh santriwati melalui pelatihan dan bimbingan serta dukungan menyiapkan peralatan untuk proses produksi shampo tersebut dari tim pengabdian masyarakat Universitas Malikussaleh.
STUDI PENERAPAN EKSTRAK DAUN PANDAN WANGI (Pandanus amaryllifolius Roxb) SEBAGAI INHIBITOR KOROSI PADA PIPA BAJA KARBON DALAM MEDIUM KOROSI AIR LAUT DAN AIR HUJAN DENGAN VARIASI SUHU
Authors: Ratnasari Yuki , Prasajojo Ikhwan Mahendra , Maharani Fadhilla
Published: November 2023

Pada industri kimia, peristiwa korosi adalah suatu hal yang sering terjadi khususnya pada alat proses. Komponen yang biasa terdapat pada sebuah alat proses adalah pipa baja. Korosi tidak bisa dihilangkan, akan tetapi bisa dikendalikan. Agar dapat bisa mengendalikan korosi pada baja dilakukan dengan cara menggunakan inhibitor korosi. Inhibitor korosi yaitu sebuah zat kimia yang apabila ditambahkan kedalam suatu lingkungan bisa menurunkan laju penyerangan korosi lingkungan itu terhadap suatu logam. Terdapat dua macam jenis inhibitor korosi yaitu inhibitor anorganik dan organik. Penggunaan inhibitor organik merupakan sebuah alternatif karena lebih ramah lingkungan. Penelitian ini memanfaatkan ekstrak daun pandan sebagai inhibitor korosi organik. Ekstrak daun pandan didapatkan dengan metode ekstraksi maserasi menggunakan etanol. Hasil uji fitokimia ekstrak daun pandan menunjukkan adanya kandungan senyawa flavonoid dan tanin. Senyawa tersebut dapat menghambat laju korosi. Hasil penelitian menunjukan meningkatnya suhu mengakibatkan banyak nya massa yang berkurang, yang berarti dapat meningkatnya laju korosi
SINTESIS KATALIS KARBON AKTIF TANDAN KOSONG KELAPA SAWIT TERIMPREGNASI NAOH PADA REAKSI TRANESTERIFIKASI BIODIESEL
Authors: Nabillah Afrah , Zamhari Mustain , Dewi Erwana
Published: November 2023

Katalis heterogen dihasilkan dengan memanfaatkan tandan kosong kelapa sawit yang diolah menjadi karbon aktif, lalu diimpreganasi dengan larutan NaOH. Katalis basa heterogen yang dihasilkan akan aplikasikan dalam reaksi transesterifikasi biodiesel untuk mengukur aktifitas dari  katalis. Karbon aktif harus dimodifikasi dengan menambahkan sisi aktif pada karbon aktif agar dapat digunakan sebagai katalis dalam reaksi tranesterifikasi biodiesel, sehingga dilakukan impregnasi sisi aktif ke permukaan karbon dengan larutan NaOH dengan memvariasi konsentrasi impregnasi 1N, 2N, 3N, 4N dan 5N selama 18, 21, 24 jam untuk mendapatkan katalis karbon aktif tebaik berdasarkan kandungan natrium terserap. Penentuan jumlah natrium teradsopsi pada karbon aktif dilakukan dengan analisis Atomic Absorption Spectrophotometer (AAS) dan untuk menganalisis sifat-sifat katalis karbon aktif dilakukan analisis Fourier Transform Infrared  (FTIR)  dan Scanning Electron Microscopy (SEM)  Hasil penelitian menunjukan Katalis NaOH/karbon aktif terbaik dengan kandungan natrium tertinggi, yakni sebesar 4,38% diperoleh pada konsentrasi 5N selama 24 jam dengan yield sebesar 91,15%. Dengan nilai densitas sebesar 866 kg/m3, viskositas 5,2 Cst, angka asam 0,5 mg-KOH/g dan titik nyala 91℃, Biodiesel yang diperoleh dengan menggunakan katalis NaOH/Karbon aktif masuk kedalam standar parameter SNI:7182-2015.
OPTIMASI EKSTRAKSI FLAVONOID DARI DAUN PISANG KEPOK (MUSA PARADISIACA L) MENGGUNAKAN MICROWAVE-ASSISTED EXTRACTION (MAE)
Authors: Zahara Fazrina , Yuniharni Dewi , Arziqni Intan
Published: November 2023

Ekstraksi flavonoid dari daun pisang kepok (Musa paradisiaca L) dilakukan dengan menggunakan teknologi microwave-assisted extraction (MAE). Ekstraksi dengan bantuan gelombang mikro merupakan metode yang tepat untuk mengisolasi bahan kimia aktif. Proses ekstraksi flavonoid selanjutnya disempurnakan dengan menggunakan response surface methodology (RSM) berdasarkan hasil yang diperoleh dari percobaan faktorial tiga level dan desain Box-Behnken (BBD). BBD adalah bentuk spesifik dari desain eksperimental yang dikenal sebagai desain faktorial tiga tingkat, yang bertujuan untuk mencegah masuknya kombinasi faktor yang ekstrim. Tujuan utama dari penelitian ini adalah untuk meningkatkan efisiensi teknik ekstraksi dengan bantuan gelombang mikro dengan mengoptimalkan daya gelombang mikro, waktu ekstraksi, dan konsentrasi pelarut untuk ekstraksi flavonoid. Variabel yang diteliti dalam percobaan ini meliputi tingkat daya, konsentrasi pelarut etanol, dan waktu ekstraksi. Tingkat daya diukur dalam watt dan mencakup tiga tingkat: 150, 300, dan 4500 Watt. Konsentrasi pelarut etanol dinyatakan sebagai persentase dan terdiri dari tiga konsentrasi: 50%, 60%, dan 70%. Serta waktu ekstraksi diukur dalam menit dan mencakup tiga durasi: 10, 15, dan 20 menit. Kondisi optimal untuk ekstraksi flavonoid dengan menggunakan teknologi microwave-assisted extraction (MAE) meliputi tingkat daya 300 watt, waktu ekstraksi 15 menit, dan konsentrasi pelarut 60%. Yield ekstraksi flavonoid dari daun pisang kapok ditentukan sebesar 11,38% pada kondisi tersebut.
PENGURANGAN KANDUNGAN LIMBAH Zn MENGGUNAKAN METODE ADSORPSI DENGAN MENGGUNAKAN FLY ASH
Authors: Maliki Syariful , Wardana Safril Kartika , Sulastriani Sulastriani , Alamsyah Mochammed , Shafira Nada , Lestari Sri Dwi
Published: November 2023

Fly ash batubara adalah limbah industri yang dihasilkan dari pembakaran batubara dan terdiri dari partikel halus. Fly ash merupakan salah satu sisa pembakaran batu bara yang dihasilkan dalam jumlah besar. Aktivasi alkali pada fly ash dapat meningkatkan kapasitas adsorpsi fly ash. Dalam penelitian ini, fly ash yang telah diaktivasi dengan alkali digunakan sebagai adsorben ion Zn(II). Pengaruh berat fly ash, waktu adsorpsi serta konsentrasi awal ion Zn(II) dipelajari. Hasil penelitian yang dilakukan adalah bahwa fly ash terbukti cukup efektif untuk menurunkan kadar Zn dengan efisiensi yang bervariasi dari 80% hingga 90% tergantung dari variabel-variabel yang dipakai.
Effect of Gallium Content on Diode Characteristics and Solar Cell Parameters of Cu(In1-xGax)(Se0.98Te0.02)2 Thin Film Solar Cells Produced by Three-stage Co-evaporation at Low Temperature
Authors: AĞCA Semih , ÇANKAYA Güven
Published: November 2023

In this study, Cu(In1-xGax)(Se0.98Te0.02)2 thin film solar cells with x values of 0.17, 0.20, 0.23, and 0.26 were successfully produced by three-stage co-evaporation technique at low temperatures. The diode characteristics and solar cell parameters of thin film chalcopyrite solar cells with the structure of SLG/Mo/Cu(In1-xGax)(Se0.98Te0.02)2/CdS/ZnO/ITO/Ni-Al-Ni were investigated by current-voltage measurements. The ideality factor, series resistance, and barrier height were obtained by the Cheung-Cheung method using the current-voltage results measured in the dark at room temperature. Open-circuit voltage, short-circuit current density, fill factor, and the power conversion efficiency of the thin film solar cells were derived from the current-voltage measurements realized by a four-point measurement setup under AM1.5G standards at room temperature. It was found that the increase in the gallium content first decreased the ideality factor, however, it increased again after exceeding the x value of 0.23. While the amount of gallium was increasing, fluctuations were observed in the series resistance values. The barrier height first increased with the increasing amount of gallium and decreased after exceeding the x value of 0.23. The solar cell parameters increased by increasing the x value up to 0.23 and decreased after exceeding this point. It was found that the diode parameters have an effect on each other but the most effective diode parameter was the ideality factor. The efficiency of the Cu(In1-xGax)(Se0.98Te0.02)2 thin film solar cells was increased from 3.7% to 6.3% by increasing the x value from 0.17 to 0.23.