bluuebunny/crossref_metadata_2025 huggingface dataset:
Quality Improvement of SiC Substrate Surface with Using Non-Abrasive CMP Slurry
Authors: Lee Seung Jun , Park Byeong Hun , Lee Cheol Ho , Lee In Kyu , Seo Jung Doo , Ku Kap Ryeol , Choi Bo Hyeok , Kim Eun Ock , Shin Na Ra , Jung Su Yeong , Kim Dong Wook , Na Jun Hyuck , Lee Won Jae
Published: August 2024

Transition metal ion was added to CMP (chemical-mechanical polishing) slurry without abrasive particle to solve the problem of CMP. MRR (material removal rate) value of SiC substrate processed using non-abrasive slurry was comparable to MRR values of SiC substrates using abrasive slurries. The scratch formation was successfully suppressed in SiC substrate polished with using non-abrasive slurry and no residual particle resulting from agglomeration of abrasive particles could suppress scratches and forms a good quality of SiC substrate surface. Uniform and high-quality SiC substrates could be prepared through the non-abrasive CMP process.
Optical Ionization of Qubits and their Silent Charge States
Authors: Bockstedte Michel , Schober Maximilian
Published: August 2024

Color centers in the technologically mature material silicon carbide are candidates for the implementation of quantum applications. Chargestate control and electrical read-out of qubits includes spin-to-charge conversion via optical excitation and subsequent ionization. In this work we address the dominant photoionization mechanism and the photophysical properties of the ionized silicon vacancy in 4H SiC using ab initio theory. We find that its nominally dark chargestates are infrared emitters.
Charge Carrier Capture by Prominent Defect Centers in 4H-SiC
Authors: Samperi Orazio , Vines Lasse , Hallén Anders , Fragalà Maria Elena
Published: August 2024

The knowledge of capture properties of electrically active defects is of primary importance as it helps to understand which deep states are effective in controlling the excess free carriers’ lifetime. Combining DLTS capture experiments with thermal emission measurements enables an overall thermodynamic description of deep states, thus making it possible to characterize recombination centers in semiconductor-based devices. In the present study, junction DLTS capture rate measurements were employed to extract the true capture cross-sections (inversely proportional to the carrier lifetime) and capture energy barriers for the main lifetime limiting defects in 4H-SiC (silicon carbide). A peculiar forward bias dependence of the capture parameters was observed for the shallow boron (B) hole trap. Capture rate measurements on the deep boron (D-center) trap also evidenced the presence of two capture mechanisms, thus allowing discrimination of D1 and D2 deep states within the D-center DLTS peak. The results were combined with activation energies and apparent capture cross-sections to obtain the free energy (ΔG) of electronic activation for the analysed deep states.
Free-Standing 3C-SiC P-Type Doping by Al Ion Implantation
Authors: Canino Maria , Torregrosa Frank , Zielinski Marcin , Boldrini Virginia , Bidini Camilla , Russo Manuela , Maccagnani Piera , La Via Francesco
Published: August 2024

Free standing wafers of the cubic polytype of silicon carbide (3C-SiC) grown on micromachined silicon substrates can be a platform for new power electronic devices, provided that suitable device fabrication processes are understood and optimized. In this frame, p-type doping is still an open issue, as results on the electrical activation of ion implanted Al in 3C-SiC are limited. This work analyses high level p-type doping with post-implantation annealing carried out at temperatures in the range 1650-1850 °C with different durations. A coherent picture emerges, showing that the resulting resistivity in 3C-SiC Al-implanted layers is higher than the one obtained in 4H-SiC implanted layers, the result being ascribed to low carrier mobility and possibly presence of compensation centers, rather than to poor Al electrical activation. The reported results highlight the importance of working on material and processing optimization.
Increasing Mobility in 4H-SiC MOSFETs with Deposited Oxide by In-Situ Nitridation of SiC Surface
Authors: Yakut Merve , Roy Atreyee , Arith Faiz , Whitworth Andrew , Alexander Andrew , Gryglewicz Jacek , Sheriff Jake , Olsen Sarah , Vasilevskiy Konstantin , O'Neill Anthony
Published: August 2024

We present the improvement of SiO2/4H-SiC interface quality and high field-effect (FE) mobility (µFE) in 4H-SiC MOSFETs. This is achieved by introducing a nitrous oxide (N2O) plasma in-situ pre-treatment before gate stack formation using plasma enhanced chemical vapour deposition (PECVD) oxide followed by a post deposition anneal (PDA) in diluted N2O for times ranging from 30 to 120 minutes thereby creating an ultra-thin thermally grown SiO2 layer at the SiO2/4H-SiC interface. MOS capacitors with SiO2 deposited on in-situ pre-treated SiC surfaces had a lower density of interface traps (DIT) for all PDA durations, compared with devices having untreated PECVD oxides or control devices with 30 nm thermally grown oxide. After PDA for 90 minutes, a minimum DIT value of 1.2×1011 cm-2·eV-1 was measured. A peak µFE value reaching 94 cm2/(V·s) was measured in n-channel planar MOSFETs fabricated with PECVD oxide on in-situ pre-treated devices, which significantly exceeds a maximum µFE of 6 cm2/(V·s) in control devices.
Near-Interface Defect Decomposition during NO Annealing Analyzed by Molecular Dynamics Simulations
Authors: Ohuchi Yuki , Saeki Hidenori , Sakakima Hiroki , Izumi Satoshi
Published: August 2024

We have used molecular dynamics simulations to investigate the decomposition mechanisms of residual C defects near the interface of 4H-SiC/SiO2 during NO annealing. We have observed drastically rapid defect decomposition by NO and O2 mixed gas, which is thermodynamically more realistic, compared with single NO or O2 gas annealing. We have constructed simplified defect decomposition model. This model numerically reproduced the simulation results, suggesting that multi-step and cooperative reactions caused by the coexistence of NO and O2 during NO annealing effectively promote the decomposition of residual C defects.
Electrical and Structural Properties of Ohmic Contacts of SiC Diodes Fabricated on Thin Wafers
Authors: Badalà Paolo , Bongiorno Corrado , Fiorenza Patrick , Bellocchi Gabriele , Smecca Emanuele , Vivona Marilena , Zignale Marco , Massimino Maurizio , Deretzis Ioannis , Rascunà Simone , Frazzica Marcello , Boscaglia Massimo , Roccaforte Fabrizio , La Magna Antonino , Alberti Alessandra
Published: August 2024

New generations of SiC power devices require to be fabricated on very thin substrates, in order to significantly reduce the series resistance of the device. The role of thinning process on the formation of backside ohmic contact has been investigated in this work. Three different mechanical grinding processes have been adopted, resulting in different amounts of defectivity and surface roughness values. An excimer UV laser has been used to form a Ni-silicide based ohmic contact on the backside of the wafers. The reacted layer has been studied by means of Atomic Force Microscopy (AFM), Transmission Electron Microscopy (TEM) and X-Ray Diffraction (XRD) analyses, as a function of grinding process parameters and laser annealing conditions. The ohmic contact has been evaluated by measuring the Sheet Resistance (Rs) of silicided layers and the Vf at nominal current of Schottky Barrier Diode (SBD) devices, fabricated on 150 mm-diameter 4H-SiC wafers. A strong relationship has been found between the crystal damage, induced by thinning process, and the structural, morphological and electrical properties of silicided ohmic contact, formed by UV laser annealing, revealing that the silicide reaction is moved forward, at fixed annealing conditions, by the increasing of crystal defectivity and surface roughness of SiC.
Epitaxial Defectivity Characterization Combining Surface Voltage and Photoluminescence Mapping on 200mm 4H-SiC Wafers
Authors: Thörnberg Jimmy , Polisski Gennadi , Carria Egidio , Isacson Mathias , Magnusson Björn
Published: August 2024

Charge biased non-Contact Voltage imaging, QUAD (Quality Uniformity And Defects) is measured on epitaxial layers grown on 25 wafers of 200 [mm] 4H-SiC. Electrical data is analyzed and deviations in the ΔV signal are compared with defectivity observed by the optical surface detection system with UV-PL capability. Reliable statistical data of the relationship between decreasing voltage and defect classification show good detection of triangles and several other defects in the epitaxial layers. The QUAD mapping gives a good first indication of the electrical active defectivity of an epitaxial layer.
The Role of Defects on SiC Device Performance and Ways to Mitigate them
Authors: Das Hrishikesh , Justice Joshua , Sunkari Swapna , Kostelník Petr , Novak Tomas , Kochoska Sara , An Daeeun
Published: August 2024

Several defects were analyzed through the manufacturing chain along with their impact on devices. High kill rate of micropipes were seen on both Diodes and MOSFETs as expected. The purity of micropipe detection was found to be affected by the presence of inclusions. Inclusions were successfully sub-classified and separated out from micropipes, based on their location depth from the wafer surface. The effect on devices was found to relate to how deep the inclusion was located, with the ones at the surface having the biggest impact. Various sources of Stacking Faults (SFs) were reported, with Basal Plane Dislocations (BPDs) in the crystal being a major contributor. Higher local densities of BPDs were found to have a more detrimental effect. SFs were sub-classified using the wavelength of each peak. The effect of both overall SFs and each SF sub-type on devices was determined, each sub-type having different effect on the device. Various ways of mitigating the effects of defects and dislocations are demonstrated. Reducing killer defects, SF nucleation probability, and BPDs propagation by epitaxial process optimizations are shown. Resilience up to 3500A/cm2 against bipolar degradation is demonstrated by using an engineered buffer layer. Process and device design optimizations show high resiliency against crystal and epi defects and dislocations, with improved yield and lower leakage.
The balance between hemorrhage and thrombosis in patients surviving spontaneous intracerebral bleeding: the nightmare of a neurologist
Authors: Pezzini Alessandro
Published: August 2024

With approximately 3 million people worldwide affected each year and the highly associated mortality and morbidity, intracerebral hemorrhage is the stroke subtype with the most severe clinical consequences. This is mainly due, on the one hand, to the lack of specific acute treatments, as opposed to the ischemic counterpart of stroke, on the other hand, to the occurrence of further vascular events after the index bleeding [...].
Socioeconomic disparities in children's posture defects: a comparison between private and public educational institutions
Authors: Kolodziej Lukasz , Kwiatkowski Sebastian , Gebska Magda , Walaszek Ireneusz , Skonieczna-Żydecka Karolina
Published: August 2024

The topic of risk factors for posture pathology in Polish children is relevant at present, as it is insufficiently studied and reflects the need to investigate the relationship between family socioeconomic status and the occurrence of posture defects, to develop relevant prevention and treatment strategies in the context of current socioeconomic conditions in Poland. The research aims to study posture defects in children depending on their socioeconomic status in the example of private and public schools. A comparison of the prevalence of deformities and posture disorders of participants in private and public educational institutions from 2017 to 2020 is presented. Theoretical research methods (literature analysis, generalisation); empirical methods (study of other researchers' experience), statistical analysis, and graphical presentation of data were used. More than 1300 Polish schoolchildren from private and public schools took part in this cross-sectional study. The most common problems were flat feet (54.73%), calf muscle contracture (44.30%), and valgus deformity (21.22%). The least common problems were funnel chest (0.37%), cavus foot (0.10%), and hammer toe deformity (0.04%). The general trend shows that problems with flat feet and calf muscle contracture were more common among participants in both types of educational institutions. There was a general trend of increasing the number of nosological forms per patient in both private and public institutions over a period of three years. Private institutions had significantly fewer cases of one patient having more than one nosological form as compared to public institutions.
Bambara groundnut landraces response and tolerance to drought stress: A meta-analysis
Authors: Mabitsela Mosima M. , Phiri Ethel E. , Booysen Marthinus J. , Mavengahama Sydney
Published: August 2024

Background: Drought stress severely limits agricultural productivity. Bambara groundnut, an underutilised legume, shows promise for its resilience to harsh environments, particularly drought. Drought duration and manipulation type have been used to evaluate the response of Bambara groundnut to drought stress. Although studies have explored the effects of drought duration and manipulation on Bambara groundnut, an understanding of the legume’s response to drought stress remains inadequate.Aim: This meta-analysis assessed Bambara groundnut’s response to different drought durations (long-term, medium-term, short-term) and manipulation types (constant, dry-and-rewetting, intermittent).Setting: The study integrates data from multiple independent studies to evaluate how various drought durations and manipulations affect Bambara groundnut.Methods: A systematic review and meta-analysis of studies examining drought’s effects on Bambara groundnut were conducted. Data from qualifying studies were extracted and statistically analysed to quantify drought’s impact on various physiological and yield parameters.Results: Drought stress significantly reduced yield (–10.22), stomatal conductance (–8.04), and pod number (–4.20). Short-term and medium-term droughts had a greater negative impact than long-term droughts. Intermittent drought did not affect biomass, plant height, leaf number, and chlorophyll content, while dry-and-rewetting cycles did not affect seed number.Conclusion: Based on the meta-analysis, future drought scenarios are predicted to negatively impact Bambara groundnut productivity, surpassing the challenges posed by current drought conditions.Contribution: This study emphasises the importance of developing strategies to enhance the resilience of indigenous crops, such as Bambara groundnut to drought, crucial for ensuring future food security in the face of changing climate patterns.
Factors influencing data quality in routine health information systems in Maridi county, South Sudan
Authors: Morris Lubang D. , Nyongesa Margaret W. , Sokiri Tobijo D.
Published: August 2024

Background: Health system planning and monitoring rely on routine data collection, analysis and utilisation. However, underdeveloped countries need more data for decision-making. South Sudan’s data management framework only partially functions, with delayed data collection and inaccurate data. The study examined the factors affecting data quality in Maridi County, South Sudan, aiming to improve resource forecasting and equitable health service delivery.Objective: The study sought to identify the obstacles and opportunities for improving data quality in health information systems (HIS) in Maridi County, Western Equatoria State, South Sudan.Methods: A cross-sectional study involving 106 respondents was conducted on 12 healthcare facilities in Maridi County. Statistical Package for the Social Sciences (SPSS) version 25 was used for descriptive, factor and thematic analysis to understand data quality, focussing on behavioural, organisational and technical aspects.Result: The study revealed that insufficient motivation, negative staff attitudes, excessive workloads, a lack of cooperation, personnel insufficiency, inadequate supervision, feedback and training influenced data quality. These factors were interrelated, with over 50% of variables showing weak to strong correlations. Set of standard indicators correlated with the presence of standard data collection tools (r = 0.51). Regular feedback from the County Health Department linked with completeness (r = 0.63) and the training of personnel on health management information systems (HMIS) and completeness resulted in moderate association (r = 0.488).Conclusion: Staff motivation, optimal staffing, training, regular feedback, and continuous supervision are crucial for maintaining the appropriate skill set for data quality.Contribution: Data quality can be achieved when standard tools and human resources are maintained and are evenly distributed.
Holiness and sustainable social transformation among neo-Pentecostal prophets in South Africa
Authors: Banda Collium
Published: August 2024

This article critically examines how African neo-Pentecostal prophets (ANPPs) address the pervasive issues of uncertainty and hopelessness in South Africa through controversial prophetic practices that challenge conventional notions of divine holiness. In light of South Africa’s persistent state of uncertainty, despite its status as one of the most progressive countries in Africa, do ANPPs inspire and support actions that can transform this adverse context into a positive and sustainable one? The question is addressed by first describing how South Africa remains a context of uncertainty, even though it is one of the most progressive countries in Africa. The article then discusses the pivotal role of ‘holiness’ in fostering sustainable social transformation. Thereafter, it examines the ANPPs’ attempts to transform the context of uncertainty and hopelessness in the country, analysing how the perceived unholiness in their activities obstructs sustainability in these efforts. Finally, the article concludes by affirming the importance of holiness in the quest for sustainable social transformation in South Africa.Intradisciplinary and/or interdisciplinary implications: The article combines frameworks from sustainable development and systematic theology to call ANPPs to reform their religious practices in alignment with God’s holiness, in order to make meaningful contributions to the contemporary quest for sustainable transformation and development in South Africa.
Corrigendum: Enhancing youth involvement in community development: A pragmatic strategy for local churches
Authors: Msebi Mawethu , Beukes Jacques W.
Published: August 2024

No abstract available.
Intermittent fasting and the liver: Focus on the Ramadan model
Authors: Emara Mohamed H , Soliman Hanan , Said Ebada M , Elbatae Hassan , Elazab Mostafa , Elhefnawy Shady , Zaher Tarik I , Abdel-Razik Ahmed , Elnadry Mohamed
Published: August 2024

Intermittent fasting (IF) is an intervention that involves not only dietary modifications but also behavioral changes with the main core being a period of fasting alternating with a period of controlled feeding. The duration of fasting differs from one regimen to another. Ramadan fasting (RF) is a religious fasting for Muslims, it lasts for only one month every one lunar year. In this model of fasting, observers abstain from food and water for a period that extends from dawn to sunset. The period of daily fasting is variable (12-18 hours) as Ramadan rotates in all seasons of the year. Consequently, longer duration of daily fasting is observed during the summer. In fact, RF is a peculiar type of IF. It is a dry IF as no water is allowed during the fasting hours, also there are no calorie restrictions during feeding hours, and the mealtime is exclusively nighttime. These three variables of the RF model are believed to have a variable impact on different liver diseases. RF was evaluated by different observational and interventional studies among patients with non-alcoholic fatty liver disease and it was associated with improvements in anthropometric measures, metabolic profile, and liver biochemistry regardless of the calorie restriction among lean and obese patients. The situation is rather different for patients with liver cirrhosis. RF was associated with adverse events among patients with liver cirrhosis irrespective of the underlying etiology of cirrhosis. Cirrhotic patients developed new ascites, ascites were increased, had higher serum bilirubin levels after Ramadan, and frequently developed hepatic encephalopathy and acute upper gastrointestinal bleeding. These complications were higher among patients with Child class B and C cirrhosis, and some fatalities occurred due to fasting. Liver transplant recipients as a special group of patients, are vulnerable to dehydration, fluctuation in blood immunosuppressive levels, likelihood of deterioration and hence observing RF without special precautions could represent a real danger for them. Patients with Gilbert syndrome can safely observe RF despite the minor elevations in serum bilirubin reported during the early days of fasting.
Correlation between non-alcoholic fatty liver disease and metabolic parameters in persons with newly diagnosed type 2 diabetes mellitus
Authors: Mukherjee Supriyo , Mukherjee Sushmita , Shing Kwok Chun , Phillips Anne
Published: August 2024

BACKGROUND

There are limited studies investigating the association between type 2 diabetes mellitus (T2DM) and non-alcoholic fatty liver disease (NAFLD) in the region of Bihar, India.

AIM

To estimate the prevalence of NAFLD in persons with newly diagnosed T2DM in the population of North Bihar, India.

METHODS

This single centre cross-sectional study was undertaken in the Research Centre for Diabetes Hypertension and Obesity, Samastipur, Bihar, India. Data were collected from persons newly diagnosed with T2DM or those diagnosed within 6 months of when the study was conducted between December 2022 to May 2023.

RESULTS

A total of 148 people with newly diagnosed T2DM were included (median age 47 years, 46.6% female) and 109 patients with liver disease on ultrasound evaluation. The persons with liver disease consumed more fats and oils (88.1% vs 74.4%, P = 0.042) and they had significantly greater body mass index (27.4 vs 23.0, P < 0.001), waist circumference (37 vs 33, P < 0.001), and waist-to-hip ratio (1.00 vs 0.70, P = 0.025). Females were associated with greater liver disease [odds ratio (OR): 3.09, 95% confidence interval (CI): 1.09-8.80, P = 0.32]. Waist circumference (OR: 1.42, 95%CI: 1.22-1.66, P < 0.001) and low-density lipoprotein cholesterol (OR: 1.01, 95%CI: 1.01-1.02, P = 0.048) were associated with any liver disease. The factors most associated with grade 2/3 liver disease was right upper quadrant pain or heaviness (OR: 5.22, 95%CI: 1.40-19.41, P = 0.14), greater income (OR: 3.58, 95%CI: 1.28-10.04, P = 0.015) and waist circumference (OR: 1.31, 95%CI: 1.02-1.69, P = 0.036).

CONCLUSION

NAFLD is common in new/recently diagnosed T2DM and disease burden is high and common among patients who are either high consumers of fats and oils or have obesity-associated markers.
Preliminary Design of Permanent Magnet Motor Using Machine Learning
Algorithm and Analytical Method
Authors: Bolagond Vrashabha , Atre Aniruddha , Gurumurthy Amogh
Published: August 2024

The global attention toward electric vehicles is growing tremendously, mainly
because of environmental issues in recent years. There has been a significant
increase in the development of hybrid and pure electric vehicles as they are
considered as an effective solution for reducing the carbon footprint. There is
a lot of research happening, especially in the design of high-performance
e-motors for electric powertrain applications. In this paper, the focus is on
the permanent magnet synchronous motors (PMSM) due to its higher efficiency and
more advantageous torque characteristics compared to other types of motors. This
paper presents a procedure for determining the initial design parameters using
analytical calculation method for a PMSM, followed by developing machine
learning algorithms (XGBoost, random forest, and artificial neural networks)
with the available benchmarking data and compare their performance to determine
the motor design parameters. A comparison study with the results obtained from
analytical calculation and machine learning algorithm is carried out in
determining the initial sizing parameters, and we have obtained an accuracy of
80%. We believe that this machine learning algorithm design approach will help
in saving the time needed for theoretical design, and with an optimum design
solution, can reduce the time and iterations of FEA required while designing an
e-motor.
$W_{1+\infty}$ flows and multi-component hierarchy (KP case)
Authors: Orlov A. Yu.
Published: August 2024

We show that abelian subalgebras of generalized $W_{1+\infty}$
($GW_{1+\infty}$) algebra gives rise to the multicomponent KP flows. The matrix
elements of the related group elements in the fermionic Fock space is expressed
as a product of a certain factor (generalized content product) and of a number
of the Schur functions and the skew Schur functions.
PEMANFAATAN APLIKASI iPUSNAS DALAM MEMENUHI KEBUTUHAN INFORMASI MAHASISWA ILMU PERPUSTAKAAN UIN SUMATERA UTARA
Authors: Gulo Elsa Karenina , Fathurrahman Muslih
Published: August 2024

Cara orang mendapatkan informasi telah berubah karena teknologi informasi dan komunikasi (TIK), termasuk perpustakaan yang kini beralih menjadi digital. iPusnas adalah salah satu aplikasi perpustakaan digital yang ada di Indonesia, yang dirancang untuk memudahkan akses informasi bagi masyarakat, termasuk mahasiswa. Pendekatan deskriptif digunakan dalam penelitian kualitatif ini. 10 mahasiswa ilmu perpustakaan UIN Sumatera utara diwawancarai guna mengumpulkan data untuk memahami pemanfaatan iPusnas dan faktor-faktor yang mempengaruhinya. iPusnas dinilai mudah digunakan dan bermanfaat untuk kebutuhan akademik mahasiswa. Namun, terdapat beberapa kendala seperti kesalahan sistem, koleksi yang kurang lengkap, tidak adanya notifikasi pesan chatting, dan batas peminjaman buku yang rendah. Kendala-kendala ini mempengaruhi efektivitas penggunaan aplikasi oleh mahasiswa.  iPusnas memiliki potensi besar untuk mendukung kebutuhan akademik mahasiswa, namun belum optimal digunakan. Diperlukan peningkatan dalam sistem teknis, perluasan koleksi, penambahan notifikasi pesan chatting, dan revisi batas peminjaman buku untuk meningkatkan pemanfaatan aplikasi ini.
IMPLEMENTASI TRANSFER LEARNING UNTUK KLASIFIKASI PENYAKIT PADA DAUN CABAI MENGGUNAKAN CNN
Authors: Setyadi Rahmat Arief , Rahman Sayuti , Manurung Dionikxon , Hasanah Mardiatul , Indrawati Asmah
Published: August 2024

Penelitian ini bertujuan untuk mengklasifikasikan penyakit pada daun cabai merah menggunakan metode Convolutional Neural Network (CNN) dengan pendekatan transfer learning, khususnya arsitektur ResNet101. Indonesia, sebagai negara agraris, memiliki banyak petani yang mengandalkan tanaman cabai merah sebagai salah satu komoditas utama. Namun, penyakit daun cabai sering kali menurunkan kualitas dan kuantitas hasil panen. Dalam upaya meningkatkan deteksi dini penyakit, penelitian ini memanfaatkan teknologi deep learning untuk menganalisis citra daun cabai. Dataset yang digunakan terdiri dari citra penyakit daun cabai merah yang telah diaugmentasi, dengan total 2128 gambar yang dibagi menjadi data training sebanyak 1702 citra dan data validasi sebanyak 426 citra. Penelitian ini membandingkan kinerja berbagai arsitektur CNN, termasuk AlexNet, GoogleNet, VGGNet16, dan ResNet50, serta lapisan-lapisan pada arsitektur ResNet. Hasil penelitian menunjukkan bahwa augmentasi dataset meningkatkan akurasi validasi dari 89.72% menjadi 97.18%. ResNet101 mencapai akurasi validasi tertinggi sebesar 98.12%, menunjukkan efektivitas transfer learning dalam tugas klasifikasi penyakit daun cabai. Penelitian ini menunjukkan bahwa penggunaan metode CNN dengan transfer learning, khususnya arsitektur ResNet101, sangat efektif untuk mendeteksi dan mengklasifikasikan penyakit pada daun cabai merah. Peningkatan kinerja model melalui augmentasi dataset dan pemilihan arsitektur yang tepat dapat membantu meningkatkan kualitas dan kuantitas hasil panen, serta mendukung pertanian cerdas di Indonesia
INTEGRASI MODEL DEEP LEARNING EFFICIENTNET-B0 UNTUK DETEKSI PENYAKIT DAUN TOMAT PADA APLIKASI SELULER BERBASIS FLUTTER
Authors: Sari Indah Clara
Published: August 2024

This research aims to develop the EfficientNet-B0 Deep Learning model for detecting diseases in tomato leaves and integrate it into a mobile application based on Flutter. The research method includes training the model using an image dataset with optimization techniques such as quantization and pruning for efficiency on resource-limited devices. The results show a loss value of 0.0939 and an accuracy of 0.9955 on test data, with detection times ranging from 0.150 to 0.554 seconds. The implementation in the application allows farmers to detect tomato leaf diseases in real-time with high accuracy, supporting sustainable agricultural practices. The application is designed to be user-friendly, enabling users to capture images of suspected diseased tomato leaves and obtain quick diagnostic results. Through optimization techniques, this model operates efficiently on resource-constrained devices without sacrificing accuracy. This research provides a significant contribution to the application of artificial intelligence technology in the agricultural sector, offering practical and innovative solutions for detecting plant diseases via mobile devices, and potentially enhancing efficiency and effectiveness in managing tomato plant diseases.Keywords: Deep Learning, EfficientNet-B0, Tomato Leaf Disease Detection, Flutter, TensorFlow Lite.
SENTIMENT ANALYSIS SUDUT PANDANG GENERASI Z TERHADAP KETERWAKILAN KEPEMIMPINAN MUDA PILPRES DI TWITTER MENGUNAKAN ID CONVULATION NEURAL NETWORK
Authors: Astuti Tri , Toyib Rozali
Published: August 2024

Penelitian ini mengeksplorasi penggunaan pemrosesan bahasa alami (NLP) untuk menganalisis sentimen dalam tweet mengenai kepemimpinan muda dalam pemilihan presiden. Data dikumpulkan dari Twitter, kemudian diproses dan diekstraksi. Proses tokenisasi menghasilkan tokenisasi kata yang kemudian diklasifikasikan menggunakan algoritma Convolutional Neural Network (CNN). Penelitian ini bertujuan untuk membandingkan akurasi algoritma CNN dalam klasifikasi sentimen. Data dikategorikan menjadi dua kelas: positif dan negatif, setelah dikumpulkan dari Twitter. Pre-processing dilakukan menggunakan teknik NLP sebelum tokenisasi. Token yang dihasilkan kemudian dimasukkan ke dalam model CNN untuk proses klasifikasi. Model 1D CNN yang digunakan terdiri dari satu lapisan konvolusi dan satu lapisan pooling, dengan aktivasi ReLU pada lapisan konvolusi. Dataset terdiri dari 200 data, dipecah menjadi 160 data pelatihan dan 40 data uji. Hasil penelitian menunjukkan bahwa label prediksi sesuai dengan label sebenarnya dari kalimat baru. Namun, beberapa faktor seperti ejaan yang tidak konsisten, penggunaan bahasa yang tidak formal, kata-kata yang memiliki arti tersirat atau ambigu,dan kesamaan kata dalam data pelatihan dan uji menyebabkan kesalahan klasifikasi. Penemuan ini menunjukkan bahwa meskipun CNN efektif dalam klasifikasi sentimen, ada tantangan yang perlu diatasi untuk meningkatkan akurasi, terutama dalam memahami konteks bahasa yang kompleks.
PERFORMANCE EVALUATION ALGORITMA C 4.5 PADA KLASIFIKASI DATA
Authors: Gustiana Zelvi
Published: August 2024

Algoritma C4.5 merupakan salah satu algoritma yang populer digunakan dalam pengambilan keputusan dan klasifikasi data. Artikel ini mengevaluasi performa algoritma C4.5 dalam berbagai kondisi dataset, termasuk dataset dengan atribut numerik dan kategorikal, dataset dengan missing values, serta dataset yang tidak seimbang. Penelitian ini menggunakan beberapa dataset dari UCI Machine Learning Repository seperti Iris, Adult, Breast Cancer, dan Wine. Proses evaluasi meliputi preprocessing data, pembagian data menjadi set pelatihan dan pengujian, implementasi algoritma C4.5, serta evaluasi performa menggunakan metrik seperti akurasi, presisi, recall, dan F-measure. Hasil penelitian menunjukkan bahwa Algoritma C4.5 mampu memberikan performa yang baik dalam berbagai kondisi dataset, namun performanya dapat dipengaruhi oleh ketidakseimbangan data dan jumlah missing values. Selain itu, penelitian ini juga mengevaluasi pengaruh parameter-parameter seperti nilai minimum gain ratio dan ukuran minimum untuk simpul daun terhadap performa algoritma. Temuan ini memberikan wawasan yang berguna bagi para peneliti dan praktisi dalam mengoptimalkan penggunaan Algoritma C4.5 untuk berbagai aplikasi klasifikasi data.
ANALISIS PENERIMAAN APLIKASI PERPUSTAKAAN DIGITAL BAGI PEMUSTAKA DI PERPUSTAKAAN UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA (UMSU)
Authors: Rahmadani Skb Sari Laily , Desky Ahmed Fernanda
Published: August 2024

Penelitian ini bertujuan untuk menganalisis  penerimaan aplikasi Perpustakaan digital UMSU bagi pemustaka di Perpustakaan UMSU dengan menggunakan pendekatan Technology Acceptanced Model (TAM) yaitu Persepsi Kegunaan (Perceived Usefulness), Persepsi Kemudahan (Perceived Ease of Use), Sikap Terhadap penggunaan (Attitude toward Behavior, Niat Perilaku untuk menggunakan ( Behavioral Intent to Use), dan Penggunaan sistem secara aktual (Actual System Use). Penelitian ini merupakan penelitian  kualitatif deskriptif, alasan peneliti menggunakan penelitian kualitatif deskriptif karena ingin mengetahui pemahaman yang lebih mendalam mengenai penerimaan aplikasi Perpustakaan Digital UMSU untuk pemustaka dalam memanfaatkan aplikasi Perpustakaan Digital UMSU. Pada proses pengumpulan data, peneliti menggunakan tiga teknik pengumpulan data yaitu observasi, wawancara, dan dokumentasi. Pemilihan informan yang digunakan adalah purposive sampling dengan memilih partisipan yang spesifik untuk menjawab pertanyaan penelitian. Setelah melakukan pengumpulan data, peneliti akan melakukan analisi data menggunakan pendekatan analisis interaktif yang diajukan oleh Milles & Huberman yaitu reduksi data, penyajian data, dan penarikan kesimpulan. Hasil penelitian menunjukkan bahwa penerimaan aplikasi perpustakaan digital UMSU adalah pemustaka merasa bahwa aplikasi ini memudahkan akses terhadap sumber-sumber informasi yang mereka butuhkan dan meningkatkan efisiensi dalam proses pencarian informasi. Selain itu, mereka juga menganggap aplikasi ini sangat berguna dalam mendukung kegiatan akademik mereka. Namun, beberapa kendala teknis dan kebutuhan akan pelatihan lebih lanjut juga diidentifikasi sebagai faktor yang mempengaruhi tingkat penerimaan. Secara keseluruhan, penerimaan aplikasi perpustakaan digital di kalangan pemustaka di UMSU cukup positif, dengan rekomendasi untuk peningkatan fitur dan dukungan teknis untuk lebih mengoptimalkan penggunaannya.
IMPLEMENTASI METODE AGILE DALAM PENGEMBANGAN APLIKASI ABSENSI BERBASIS QRCODE PADA SMP NEGERI 7 PERCUT SEI TUAN
Authors: Tinambunan Medi Hermanto , Wahyuni Sri , Yasir Amru , Simanjuntak Marthin Yohannes , Siregar Amir Hamzah
Published: August 2024

Perkembangan teknologi saat ini sangat cepat, hampir seluruh elemen pekerjaan sudah menggunakan teknologi, hal ini juga yang menjadi perhatian penting oleh kepala sekolah SMP Negeri 7 Percut Sei Tuan, tentunya sangat dibutuhkan sebuah sistem absensi yang dapat memberikan informasi dan rekapitulasi data dengan cepat, saat ini SMP Negeri 7 Percut Sei Tuan hanya menggunakan absensi secara manual, yang dimaksud dengan manual adalah menggunakan cetakan absensi dan melakukan tanda tangan langsung pada cetakan dan guru memanggil nama siswa, hal ini tentunya memakan waktu yang lama serta tidak efisien dalam menjalankan proses belajar mengajar. Berdasarkan informasi yang didapatkan dari wawancara dengan para guru, dibutuhkan waktu sekitar 10 sampai dengan 20 menit hanya untuk melakukan absensi sehingga waktu untuk pembelajaran terpotong cukup banyak. Berdasarkan permasalahan tersebut perlu dilakukan penyelesaian terkait waktu yang lumayan banyak termakan oleh absensi, salah satu cara yang dapat dilakukan adalah dengan membangun sebuah aplikasi dengan menerapkan metode Agile Software Development yang dapat membantu siswa dan guru untuk melakukan absensi dengan cepat, cukup hanya dengan guru mengingatkan kembali siswa untuk melakukan absensi dengan aplikasi absensi berbasis qrcode pada saat pembelajaran berakhir atau sebelum mata pelajaran terakhir selesai. Saat pengujian sistem tentunya sangat membantu para guru dan orangtua dalam melakukan pemantauan kehadiran siswa disekolah, karena fitur aplikasi ini dapat memberikan informasi melalui email ketika siswa melakukan absensi disekolah, sehingga orang tua dapat mengetahui apakah anak mereka sudah hadir disekolah. Berdasarkan hasil pengujian blackbox didapatkan tingkat kepuasan pengguna baik orangtua dan guru sangat terbantu dalam pemantuan absensi serta memberikan penilaian positif.
IMPLEMENTASI PENDUKUNG KEPUTUSAN METODE SAW UNTUK PENERIMAAN KIP
Authors: Sitorus Peniel Sam Putra
Published: August 2024

Sekolah pendidikan di perguruan tinggi dalam negeri Indonesia sangat banyak bermunculan. Tingginya pembiayaan pendidikan di perguruan tinggi negeri maupun swasta, mengakibatkan pemerintah Indonesia memberikan beasiswa kepada mahasiswa-mahasiswi di perguruan tinggi dengan golongan yang tertentu saja. Pemberian beasiswa kepada perguruan tinggi memunculkan persaingan yang ketat, dimana peminat di indonesia sangatlah tinggi dalam pendaftaran beasiswa. Beasiswa yang diberikan oleh pemerintah pada perguruan tinggi negeri dan swasta adalah beasiswa Kartu Indonesia Pintar (KIP). Beasiswa dengan peminat yang tinggi tersebut maka menjadi tantangan bagi pihak yang mengelola beasiswa yang diberikan, untuk mengambil suatu keputusan dalam penerimaan beasiswa Kartu Indonesia Pintar di Perguruan Tinggi. Dalam penseleksian calon penerima beasiswa dibutuhkan metode dalam pengambilan keputusan dengan tepat, efisien dan akurat. Justru dalam penseleksian beasiswa supaya tepat, efisien dan akurat pasti memiliki kriteria-kriteria yang ditentukan pada perguruan tinggi itu sendiri. Metode yang digunakan dalam penseleksian beasiswa kartu indoensia pintar yaitu metode Simple Additve Weighting (SAW), yang mana metode ini sederhana dan menghasilkan analisa yang tepat, efesien dan akurat berdasarkan kriteria-kriteria, bobot preferensi yang telah ditentukan. Penelitian ini bertujuan untuk menganalisa metode simple additive weighting yang di implementasikan ke dalam penseleksian penerimaan kartu indonesia pintar di perguruan tinggi. Pada pengujiannya dengan metode simple additive weighting perhitungan bobot dengan konsep penjumlahan terbobot dari tiap alternatif dan semua atributnya. Hasil perhitungan dalam perankingan yang terbaik nilainya diperoleh dari semua alternatif yang digunakan, maka berhak menjadi penerima beasiswa kartu indonesia pintar (KIP) pada suatu perguruan tinggi. Dengan adanya metode simple additve wighting (SAW) dapat disimpulkan bahwa tepat, efesien akurat dan mempermudahkan penyeleksian penerimaan kartu indonesia pintar.
Advancement of Local Culture Through Static Archive Management
Authors: Ramadhan Gilang , Pamungkas Wildan , Lestari Aghnia Dian
Published: August 2024

The decline in appreciation for local cultural values among the younger generation is concerning, particularly due to the lack of authentic sources that detail the origins of the surrounding culture. This study aims to identify and evaluate the management process of static archives at the Cirebon Regency Culture and Tourism Office and assess its effectiveness in preserving local culture. Utilizing a qualitative approach grounded in static archive theory, the research focuses on seven key dimensions of archive management, including appraisal, maintenance, labeling, description, services, reference retrieval, and the provision of research space. The findings reveal that archive management in Cirebon has been effective through a system that involves community collaboration, which plays a crucial role in preserving culturally valuable archives. In conclusion, effective static archive management can enhance the appreciation of local culture among the younger generation, with community participation being a key factor in its success.
Penerapan Asas Keadilan Dalam Hal Penjatuhan Sanksi Pidana Bagi Pelanggar Pembatasan Sosial Berskala Besar Di Masa Pandemi
Authors: Anita Dwi Lestari  , Imami Vidi Al , Arafah Mutia Aldina , Zahida Irya Rizka , Ramadhan Ari , Oktarina Evi
Published: August 2024

The increasing rate of spread of the COVID-19 virus has prompted the government to reiterate its policy of restricting public activity. The increased rate of transmission of Covid-19 virus is estimated to be due to the new variant of SARS-CoV-2 (Delta) and increased mobility of citizens during holidays. The government must issue new rules and policies in this situation, which is crucial in the current abnormal state conditions. Hopefully these new laws and policies will help maintain order and peace. Normative legal research, or legal research that uses library material or secondary data, is used. If viewed from the perspective of justice in society, the granting or enforcement of criminal sanctions has not given a sense of justice to the society if the perpetrator.
Penerapan Asas Proporsionalitas Dalam Perjanjian Pembangunan Perumahan Antara Pengembang Dengan Pemilik Lahan
Authors: Yudhi Wahab Aprisandi  , Dedi  , Anantasiah Putri  , Fathiya Geumala  , Lindawati Saleh  , Cayo Putri Sari Nilam
Published: August 2024

The basic definition of proportionality is balance in everything, which means that everything is balanced materially, both in terms of profits and losses. Proportionality also includes balance according to the fair proportions that each party has. The author will discuss how the developer's obligations are regulated in the housing development cooperation agreement. A writer uses normative legal research, which uses library material or secondary data. Developers must keep the safety and security of landowners after they occupy the building that has been built. The rights of landowners must be protected by adhering to all agreements.
Penerapan Asas Itikad Baik Dalam Pelaksanaan Perjanjian Jual Beli Tanah
Authors: Ahmad Riansyah  , Roihan  , Riski Rahmadhan  , M.Willy Pratama  , Ricky Nopriyadi
Published: August 2024

The principles of faith in civil law must apply to any agreement, whether between individuals and individuals or between individuals with legal bodies. In paragraph 3 of article 1338 of the Covenant, referred to in this document as the "Covenant", it is stated that "good will" in this sense means acting in the right way morally. Normative law research also gathers secondary law sources. A company should not harm others or exploit others for personal gain is a topic of talk about faith. To conclude, in the case of sale of land, the application of the credentials occurs at the time of entry into force of the law or when the rights and obligations established in the legal relationship are implemented.Any party to a treaty must do so in good faith, according to article 1338, paragraph 3.
Sanksi Pidana Terhadap Penumpang Yang Melanggar Tata Tertib Di Dalam Pesawat Udara Berdasarkan Undang-Undang Nomor 1 Tahun 2009 Tentang Penerbangan
Authors: Dewa Ayu Made Mayani  , M. Lucky Septian Mulia  , Muhamad Dwi Septiawan  , Muhamad Alyo Vidawarman  , Sunarto
Published: August 2024

Aviation Law Number 1 of 2009 regulates aviation. Article 1 of the Aviation Law describes aviation as a system that includes the use of airspace, aircraft, airports, aircraft, navigation, safety and security, and the environment. General supporting infrastructure, such as equipment. The problem of this research is the types of violations of aviation laws and regulations committed by passengers during flights according to Aviation Law Number 1 of 2009, as well as the criminal sanctions given to them.
Sanksi Hukum Pelaku Menguasai Tanah Milik Orang Lain Tanpa Izin Berdasarkan Undang-Undang Nomor 51 Prt Tahun 1960 Tentang Larangan Pemakaian Tanah Tanpa Izin Yang Berhak Atau Kekuasaannya
Authors: Roni  , Sukma Andi Wijaya  , Satrio Margo Utomo  , M. Deri Okta Pratama  , Boy Santosa
Published: August 2024

Land is an important component of human life because it serves as a place of human habitation and activity. Even after death, humans still need land to do many things. One of the reasons for the crime of neglect of land rights is because of economic factors, where the perpetrators do so because they are driven by material needs, or because they possess the land without the permission of the owner. The lack of public knowledge of the law, especially of land crimes, is due to the fact that the perpetrators of land abduction do not understand the legal consequences or the sanctions that will be accepted if they do so.
Akibat Hukum Sertifikat Hak Guna Usaha Yang Diterbitkan Oleh Badan Pertanahan Nasional Karena Kesalahan Prosedur Penerbitan Sk Izin Lokasi
Authors: M. Dwi Yogananto  , Mohammad Omar Braddley  , Muhammad Ridho Chalik  , Muhammad Farhan  , Abdul Rasid  , Rusmini Rusmini
Published: August 2024

Location permits are written permits given to companies or individuals to direct the location of capital planters according to the territorial planning plan and at the same time as permits to obtain the necessary land. Article 20 of the Regulations of the Minister of State of Agriculture/Head of the BPN No. 9 of 1999 regulates the procedure for granting the right of use of the enterprise.On the basis of Section II of Articles 106 and 107 of the Rules of the minister of state of agriculture No. 9, 1999 on the Procedure for the Granting and Cancellation of Rights on National Land and Rights of Management, and Articles 107 and 108 of the regulation of the Ministry of the State of Agricultural Affairs No.9 of 1999 on Procedures for the granting and cancellation of rights on national land and rights of management, the certificate of the right to use of enterprise that has been canceled will be canceled.
Acute Appendicitis in Pregnancy in Baghdad Teaching Hospital
Authors:   MBChB, FICMS, Specialist of general surgery, Nursing Home Hospital, Medical City, Baghdad, Iraq., Abbas Dr. Omar Fadhil , Ibraheem Abbas Dr. Mohammed ,   MBChB, FICMS, Specialist of general surgery, Al-Hussein Teaching Hospital, Samawah, AlMuthana, Iraq., Khudhair Dr. Ismail Hasan ,   MBChB, FICMS, Specialist of general surgery, Mahmoudiya General Hospital, Baghdad, Iraq.
Published: August 2024

Background: Acute appendicitis is the most common surgical problem in pregnancy (non-obstetric emergencies in pregnancy) but it does not occur more often in pregnant women than in non-pregnant women, the incidence is 0.1% - 0.2%. The aim of the study was to evaluate the clinical presentation of pregnant patients at different trimesters, the change in pain location during pregnancy and maternal complications during hospitalization. Patients & methods: Sixty two pregnant patients with diagnosis of acute appendicitis from October 2010 to February 2012 in Baghdad Teaching Hospital - Medical City were followed up prospectively. Analysis was done on relation of acute appendicitis to trimesters of pregnancy, site of pain changing according to trimesters, and whether maternal complications and abortion occurred during hospitalization. Results: Sixty two pregnant patients with diagnosis of acute appendicitis underwent emergency appendectomy. The age range of the patients was 16-41 years, occurred most commonly in the second trimester, majority of pregnant patients with acute appendicitis were multigravidas. The most common presenting symptom was abdominal pain. Patients who did not have a scar of previous caesarean section, the change in the site of the appendix and maximum site of tenderness was more than those who had previous scar. Conclusion: The diagnostic accuracy of acute appendicitis in pregnant women is vital. Early appendectomy prevents complicated conditions.