bluuebunny/crossref_metadata_2025_split huggingface dataset:
Minimisation of AC Grid Side Input Power Factor Angle for Three-phase AC to Three-phase AC Matrix Converter under Varying Load
Authors: Basak Abhinandan , Syam Prasid , Mukherjee Kaushik 
Published: March 2024

Abstract
Minimisation of AC grid side input power factor angle for a ‘matrix converter (MC)’ improves the efficiency of the grid. Input volt-ampere requirement is minimum if the current drawn by the ‘MC’ is sinusoidal and input displacement power factor (IDPF) is unity. A MC is inherently capable of maintaining a unity displacement power factor (UDPF) angle at its input terminals. However, the input currents drawn from the grid are not sinusoidal. The high-frequency ripples are suppressed by input current filters (ICFs).These filters additionally introduce a leading phase angle for the current which varies with the loading. This phase lead can be compensated by adjusting the angle between the input current space vector and the input voltage space vector of the MC. The computation of this adjustment angle depends on the estimation of power losses in the switching devices. A simple method is proposed in this paper to estimate the switching losses without measuring device voltages and currents using the perturbation technique. The perturbation logic depends on input current, instantaneous active and reactive power computed at regular intervals of time. The proposed method effectively minimises the IDPF angle very close to zero. The experimental results are included for validation,
Modified ResNet152v2: Binary Classification and Hybrid Segmentation of Brain Stroke Using Transfer Learning-Based Approach
Authors: Parimala Nallamotu , Muneeswari G 
Published: March 2024

Abstract

Introduction: The brain is harmed by a medical condition known as a stroke when the blood vessels in the brain burst. Symptoms may appear when the brain’s flow of blood and other nutrients is disrupted. The World Health Organization (WHO) claims that stroke is the leading cause of disability and death worldwide. A stroke can be made less severe by detecting its different warning symptoms early. A brain stroke can be quickly diagnosed using computed tomography (CT) images. Time is passing quickly, although experts are studying every brain CT scan. This situation can cause therapy to be delayed and mistakes to be made. As a result, we focused on using an effective transfer learning approach for stroke detection.

Material and methods: To improve the detection accuracy, the stroke-affected region of the brain is segmented using the Red Fox optimization algorithm (RFOA). The processed area is then further processed using the Advanced Dragonfly Algorithm. The segmented image extracts include morphological, wavelet features, and grey-level co-occurrence matrix (GLCM). Modified ResNet152V2 is then used to classify the images of Normal and Stroke. We use the Brain Stroke CT Image Dataset to conduct tests using Python for implementation.

Results: Per the performance analysis, the proposed approach outperformed the other deep learning algorithms, achieving the best accuracy of 99.25%, sensitivity of 99.65%, F1-score of 99.06%, precision of 99.63%, and specificity of 99.56%.

Conclusions: The proposed deep learning-based classification system returns the best possible solution among all input predictive models considering performance criteria and improves the system’s efficacy; hence, it can assist doctors and radiologists in a better way to diagnose Brain Stroke patients.
First implementation of quality control procedures on selected X-ray machines in South of Benin
Authors: Soglo Tino Romeo , Inkoom Stephen , Hasford Francis , Sosu Edem K. , Biaou Olivier 
Published: March 2024

Abstract

Introduction: The use of X-ray equipment for medical diagnostic radiography procedures has increased due to advances and complexity of radiological procedures. Achieving good image quality while keeping exposure of workers, public and patient exposure to an acceptable level has become a prerequisite for the radiology department in order to comply with best international practices. The aim of this study was to undertake quality control measurement of seven (7) diagnostic radiography equipment in the south of Benin, the first of its kind.

Material and methods: Multifunction detector (Piranha) and beam alignment test tool were used to perform quality control tests on seven (7) X-ray units. The method used as well as the interpretation of the results was based on the American Association of Physicists in Medicine (AAPM), United States Food and Drug Administration (FDA), Healing Arts Radiation Protection (HARP), Institute of Physics and Engineering in Medicine (IPEM), International Atomic Energy Agency (IAEA) and Canadian Safety code 35 (S.C 35) recommendations.

Results: The quality control results showed that all X-ray equipment investigated were within standard limits for accuracy of exposure time below 10 ms; reproducibility of kVp, exposure time and dose output; specific dose-kVp2 linearity; and specific dose-mAs linearity. Five (5) out of seven (7) diagnostic X-ray machines passed quality control tests such as X-ray beam alignment, exposure time above 10 ms and kVp accuracy. One (1) X-ray machine failed the quality control test of beam filtration at 70 kVp and above.

Conclusions: The findings of this study have provided baseline data for other radiology departments to embark on similar QA/QC activities, and also explore options for optimization of patient dose. However, there is a need to extend the study to cover more diagnostic X-ray machines throughout the country. It is anticipated that this would ultimately assist in improving radiation protection and safety during medical diagnostic radiological procedures.
Aplikasi Plasma Dingin pada Produk Segar
Authors: Arda Gede 
Published: March 2024

Plasma non-termal adalah gas terionisasi yang terdiri dari molekul netral, atom tereksitasi, dan molekul bermuatan. Beberapa molekul sangat reaktif sehingga bereaksi dengan cepat terhadap bahan organik atau non-organik. Karena sifatnya, plasma baru-baru ini diterapkan untuk mendekontaminasi produk pertanian dari berbagai kontaminan. Dalam produk segar seperti buah dan sayuran, plasma non-termal digunakan untuk membunuh bakteri dan mikroorganisme lain yang menempel pada permukaan produk, atau untuk mendegradasi residu pestisida yang melapisi produk. Kontaminan ini mempengaruhi kualitas produk dengan cara tertentu sehingga dapat mengurangi keuntungan yang diperoleh produsen, penangan, dan penjual. Beberapa mekanisme yang menjelaskan bagaimana plasma non-termal mengurangi tingkat kontaminan telah diusulkan oleh para peneliti. Intinya adalah spesies reaktif merusak dinding sel mikroorganisme sehingga tidak dapat hidup atau rusak, dan mereka juga dapat bereaksi terhadap senyawa pestisida dan mendegradasinya menjadi senyawa yang tidak terlalu berbahaya. Namun, spesies reaktif yang sama tidak hanya bereaksi terhadap materi target tetapi juga bereaksi terhadap jaringan produk di sekitar plasma yang diaplikasikan dan mempengaruhi kualitas produk yang diolah. Makalah ini mengulas pengaruh plasma non-termal terhadap kualitas produk segar dari sudut pandang fisik, fisiologis, kimia, dan mikrobiologis.

Non-thermal plasma is ionized gas which comprised of neutral molecules, excited atom, and charged molecules. Some of the molecules are so very reactive that react rapidly to almost organic or non-organic matter. Due to its properties, plasma is recently applied to decontaminate agricultural products from various contaminants. In the case of fresh produce such fruit and vegetable, non-thermal plasma is used to kill bacteria and other microorganisms attached to a product’s surface, or to degrade the pesticide residues coating the product. These contaminants affect product quality in a certain way thus, they could reduce the profit gain by producers, handlers, and sellers. Some mechanisms explained how non-thermal plasma reduce the level of contaminant have been proposed by researchers. The point are the reactive species damage the cell wall of microorganisms making them non-viable or damaged, and they could react to pesticide compounds as well and degrade them to less harmful compounds. However, the same reactive species not only react to target-matter but also react to product tissues around the plasma applied and affect the quality of the treated product. This paper reviews the effect of non-thermal plasma on fresh product quality from physical, physiological, chemical, and microbiological viewpoints.
The Mediating Effect of Job Satisfaction in the Influence of Non-Physical Environment on Employee Performance
Authors: Sundjoto  , Roy Sumaryono  , Sari Anita Kartika 
Published: March 2024

Purpose: This study explores the impact of non-physical environment on job satisfaction and employee performance, with an emphasis on the mediating role of job satisfaction. Involving 125 staff-level respondents from paper companies in East Java,

Methods: This study used Structural Equation Modeling Partial Least Squares (SEM PLS) method to analyze quantitative data collected through Likert-scale questionnaires.

Resullt and Conclusion: The findings showed that the non-physical environment has a significant positive influence on job satisfaction and employee performance. In addition, the mediating role of job satisfaction was found to be significant, indicating that job satisfaction is able to mediate the relationship between non-physical environment and employee performance.

Research Implication: Managerial implications include improving non-physical facilities and strategies to increase job satisfaction.

Originality/Value: This research contributes to the understanding of the complex dynamics in the work environment and offers insights for human resource managers to improve working conditions and employee performance. Recommendations involve improving management policies and practices to create an environment that supports and stimulates optimal performance.
Pendampingan Sertifikasi Halal Pada UMKM Makanan Ringan Di Desa Bansari Kecamatan Bansari Kabupaten Temanggung
Authors: Pradewi Gunarti Ika , Chailani Muchammad Iqbal , Arifah Siti 
Published: March 2024

Nowadays, halal products have become a lifestyle as well as a necessity for people in Indonesia. The government has tried to fulfil these needs by providing halal certification. This effort certainly requires the participation of various parties including academics. To support these efforts, the author conducted community service in Bansari village related to obtaining halal certification for existing MSMEs. Assistance is carried out using the PAR (Participatory Action Research) method which starts from the stages of (1) Community Research Social Problem Diagnostic, (2) Community Strategic Planning, (3) Community Resource Mobilisation, and (4) Reflection. The results of the assistance carried out are first, the Bansari Village community has insight into the processing and presentation of halal products that have been determined by the government; second, the community has an NIB; third, the Bansari village community becomes skilled in processing and marketing their processed products so that they can be accepted by the market both offline and online markets.Keywords: Halal certification, Halal products, UMKMAbstrakSaat ini produk halal menjadi gaya hidup sekaligus kebutuhan bagi masyarakat di Indonesia. Pemerintah telah berupaya memenuhi kebutuhan tersebut dengan menyediakan sertifikasi halal. Upaya tersebut tentu membutuhkan partisipasi berbagai pihak termasuk akademisi. Untuk mendukung upaya tersebut penulis melakukan pengabdian kepada masyarakat di desa Bansari terkait dengan perolehan sertifikasi halal bagi UMKM yang ada. Pendampingan dilakukan dengan menggunakan metode PAR (Participatory Action Research) yang dimulai dari tahap (1) Community Research Social Problem Diagnostic, (2) Community Strategic Planning , (3) Community Resource Mobilication, dan (4) Reflection. Hasil dari pendampingan yang dilakukan adalah pertama, masyarakat Desa Bansari memiliki bekal wawasan dalam pengolahan dan penyajian produk halal yang telah ditetapkan oleh pemerintah; kedua, masyarakat memiliki NIB; ketiga, masyarakat desa Bansari menjadi terampil dalam mengolah dan memasarkan produk olahan mereka agar bisa diterima oleh pasar baik pasar offline maupun online.Kata Kunci: Sertifikasi halal, Produk halal, UMKM
استخدام استراتيجيات ترتيب الكلمات في تعليم الصرف خاصة في موضوع الصيغة لطالبات الصف الثاني في معهد دار الأخوة للبنات الثاني
Authors: Hanifa Faricha Nidaul , Muassomah Muassomah , Salsabila Jehan 
Published: March 2024

Pembelajaran shorof atau morfologi terkadang dianggap mudah dipelajari bagi pembelajar bahasa Arab tingkat pemula, sehingga mata pelajaran ini pun mulai diajarkan di kelas 2 SMP di berbagai sekolah, salah satunya di Pondok Pesantren Daarul Ukhuwwah Putri 2 Malang. Penelitian ini mebahas tentang strategi pembelajaran shorof dengan permainan susun kata yang disesuaikan dengan kurikulum dan buku ajar pondok tersebut, yaitu kurikulum KMI. Peneliti ingin mendeskripsikan bagaimana proses pembelajaran dengan strategi susun kata pada materi shorf sighatul kalimat santriwati kelas 2 di Pondok Pesantren Daarul Ukhuwwah Putri 2 serta mendeskripsikan kelebihan dan kekurangan strategi tersebut. Metode penelitian ini menggunakan metode penelitian deskriptif kualitatif. Data yang diperoleh berupa catatan lapangan, foto, dokumentasi dan lain-lain. Penellitian kualitatif adalah penelitian yang dilakukan berdasarkan paradigma, strategi dan implementasi model secara kualitatif. Hasil pembahasan dapat disimpulkan bahwa penggunaan Strategi Susun Kata Pada Pembelajaran Shorf Sighatul Kalimat Santriwati kelas 2 di Pondok Pesantren Daarul Ukhuwwah Putri 2 membawa pengaruh positif pada pembelajaran shorof. Dilihat dari hasil observasi yang menunjukkan peningkatan kesemangatan santriwati dalam belajar serta memberi inovasi baru bagi guru dalam menyampaikan materi dan mengambil evaluasi.
Hubungan Laju Endap Darah (LED) dengan Kejadian Syok pada Pasien Multisystem Inflammatory Syndrome in Children (MIS-C)
Authors: Rahmi Yannisa Mutiara , Ihsan Indra , Indra Beni , Yani Finny Fitry , Rofinda Zelly Dia 
Published: March 2024

Latar Belakang: Multisystem Inflammatory Syndrome in Children (MIS-C) merupakan respon inflamasi yang melibatkan > 2 organ pasca infeksi SARS-CoV-2. Pemeriksaan marker inflamasi dapat membantu klinisi dalam menegakkan diagnosis dan memprediksi luaran buruk, seperti kejadian syok. Laju endap darah (LED) merupakan marker inflamasi yang murah dan mudah dilakukan di layanan primer yang memiliki keterbatasan fasilitas.
Objektif: Mengetahui hubungan LED dengan kejadian syok pada pasien MIS-C yang dirawat di RSUP Dr. M. Djamil Padang.
Metode: Jenis penelitian ini adalah analitik retrospektif dengan menggunakan data rekam medis pasien yang memenuhi kriteria inklusi dan eksklusi. Penelitian dilakukan di RSUP Dr. M. Djamil Padang pada pasien yang didiagnosis MIS-C sesuai kriteria World Health Organization (WHO). Data kemudian dianalisis dengan uji Mann-Whitney.
Hasil: Penelitian ini mendapatkan median LED adalah 25,5 (1-117) mm/jam pada pasien MIS-C. Sebanyak 43,8% pasien mengalami syok. Uji statistik Mann-Whitney menunjukkan bahwa tidak terdapat perbedaan yang signifikan antara nilai LED pada pasien MIS-C yang mengalami syok dengan yang tidak (p = 0,055).
Kesimpulan: Median LED pada pasien MIS-C ditemukan meningkat melebihi batas normal. Pasien MIS-C yang mengalami syok memiliki median nilai LED yang lebih tinggi jika dibandingkan dengan yang tidak (43 vs. 19,5 mm/jam), namun tidak terdapat hubungan yang signifikan antara nilai LED dengan kejadian syok pada pasien MIS-C. Pemeriksaan LED tidak dianjurkan untuk digunakan dalam memprediksi kejadian syok pada pasien MIS-C.
Kata kunci: Laju Endap Darah, Luaran, MIS-C, SARS-CoV-2, Syok
Pengaruh Suplementasi Vitamin D Terhadap Perubahan Skor Psoriasis Area and Severity Index (PASI) Pada Pasien Psoriasis: Studi Kasus Dengan Pendekatan Berbasis Bukti
Authors: Rahmawati Anni , Lestari Wiji 
Published: March 2024

Latar Belakang: Psoriasis merupakan suatu penyakit autoimun dan inflamasi kulit yang bersifat kronis. Perjalanan penyakit psoriasis membuat kualitas hidup pasien menurun dan meningkatkan mortalitas. Vitamin D memiliki peran penting dalam fungsi kekebalan tubuh dengan meningkatkan respons imun bawaan dan adaptif. Efek suplementasi vitamin D masih menjadi perdebatan karena hasil yang tidak konklusif.
Objektif: Mengetahui efek pemberian suplementasi Vitamin D terhadap perubahan skor Psoriasis Area and Severity Index (PASI) pada pasien psoriasis.
Metode: Penelusuran literatur dilakukan pada empat pangkalan data, yaitu PubMed, Cochrane, ProQuest, dan Embase menggunakan kata kunci MeSH terms. Penyeleksian artikel dilakukan dengan penapisan judul atau abstrak, telaah teks lengkap, dan menentukan terpenuhinya kriteria inklusi dan eksklusi. Dilakukan telaah kritis pada dua studi kajian literatur sistemik/meta-analisis dari uji acak terkontrol berdasarkan telaah validity, importance, dan applicability.
Hasil: Dua literatur dipilih dan dinilai secara kritis. Artikel pertama menunjukkan bahwa tidak terdapat perbedaan skor PASI antara pasien psoriasis yang mendapat plasebo dengan pasien psoriasis yang mendapatkan suplementasi vitamin D setelah 3, 6, dan 12 bulan pemberian suplementasi. dengan p>0,05. Pada artikel kedua, suplementasi vitamin D lebih unggul dibandingkan plasebo dalam memperbaiki skor PASI setelah 6 bulan intervensi (MD = -0,92, 95% CI = -1,72 hingga -0,11). Namun setelah penyesuaian Hartung-Knapp, hasil menjadi tidak signifikan (MD = 0.92, 95% CI = 2.21 hingga 0.38).Suplementasi Vitamin D tidak menurunkan keparahan pada psoriasis yang dinilai melalui PASI.
Kesimpulan: Pemberian suplementasi vitamin D tidak memberikan pengaruh terhadap perbaikan keparahan pada pasien psoriasis yang dinilai melalui skor PASI.
Kata kunci: Vitamin D, Psoriasis, keparahan psoriasis, PASI
A study to assess the prevalence and risk factors for Clostridioides difficile infection in patients with inflammatory bowel disease in a tertiary care hospital in Northern India
Authors: Ghoshal Ujjala , Singh Romya , Tejan Nidhi , Sahu Chinmoy , Pandey Ankita , Ghoshal Uday C. 
Published: March 2024

Objectives:
The prevalence of Clostridioides difficile infection (CDI) is on rise among patients with inflammatory bowel disease (IBD). This study sought to describe the prevalence and risk factors of CDI in patients with IBD as compared to non-IBD controls.

Materials and Methods:
This was a prospective study conducted at a Department of Microbiology in collaboration with a Department of Gastroenterology. The patients with IBD and controls without IBD presenting with diarrhea were included in the study. The screening test for C. difficile infection was done by glutamate dehydrogenase (GDH) assay and toxin detection by enzyme-linked immunoassay (ELISA). Anaerobic culture for C. difficile was done on a selective cycloserine cefoxitin fructose agar and polymerase chain reaction (PCR) was done for Toxin A (TcdA) and Toxin B (TcdB) gene detection. C. difficile infection was confirmed if GDH and toxin ELISA or PCR were positive.

Statistical Analysis:
Data were analyzed with the Statistical Package for the Social Sciences version 20.0.The numerical variables were presented by means and standard deviations. Comparison of continuous variables was done using Student’s t-test. Categorical variables were analyzed by Chi square test. P<0.05 was considered to be statistically significant.

Results:
A total of 160 cases and 112 age- and gender-matched control were included in IBD group and nonIBD group, respectively. Only one culture was positive, 12 and six were positive for GDH ELISA and TcdA and TcdB ELISA, respectively, and 7 were positive by PCR for toxin genes. The factors found significantly associated with CDI were proton-pump inhibitors use (P = 0.001), levofloxacin (P =0.001), and azathioprine (P =0.042). Using PCR as a reference method for C. difficile toxin detection, the sensitivity, and specificity of GDH ELISA and ELISA for toxins were 100%, 96.8% and 85.7%, and 100%, respectively.

Conclusions:
The prevalence of CDI among patients with IBD has been found to be low, that is (only 4.4%) in this study population.
INNOVATIVE TECHNOLOGICAL TOOLS FOR TEACHING SITUATED ENTREPRENEURSHIP: A CASE STUDY IN A HIGHER EDUCATION
Authors: Hernández Maritza Arias , Virgüez Jesús Enrique Beltrán 
Published: March 2024

Purpose: To present, through a case study, two technological tools for the playful-business teaching of entrepreneurship, one called the digital channel "cvivo.digital," and another of a curricular type called "Didactic Contents for Entrepreneurship."

Theoretical Framework: The Communication Revolution poses a challenge to one of the oldest and most persistent problems in the world, and technological tools represent determining factors in entrepreneurship processes (González et al., 2020).

Design/Methodology/Approach: As a methodological strategy, the phases of conceiving, designing, implementing, and operating (CDIO) were implemented. Although originally a teaching strategy in engineering, it is also applicable to research processes in other fields of knowledge. The stated stages were accompanied by documentary reviews, exercises of participant observation, and pilot testing, leading to the materialization of the technological tools.

Findings: The results highlighted the joint management and circulation of knowledge (students-teachers), functionality, usability, and portability of technological tools according to the real context of students and the current and growing challenges of entrepreneurship in Colombia.

Research, Practical & Social Implications: The article shows a path to promote and strengthen entrepreneurship in higher education by offering the pillars that can contribute to this important task for society.

Originality/Value: The results reflect an innovative way of addressing formative needs and promoting innovation, inviting reflection and experimentation with these forms of university work in various contexts.
FOSTERING LOYALTY AMONG YOUNG CONSUMERS: STRATEGIC APPROACHES FOR BANK SUSTAINABILITY
Authors: Bakar Juhaida Abu , Adzis Azira Abdul 
Published: March 2024

Objective: This study examines the influence of service quality, satisfaction, bank image, and trust on bank loyalty among youngsters in Malaysia, represented by university students.

Theoretical Framework: This study integrates cognitive and behavioral approaches from the Learning Theory to model customer loyalty. Cognitive processes involve assessing service quality for future decisions, while behavioral aspects focus on observable actions. Both perspectives are essential for understanding and predicting consumer behaviors in the context of loyalty.

Method: Using a sample of 290 university students, data was collected through a self-administered survey and analyzed using Partial Least Square-Structural Equation Modeling (PLS-SEM).

Results and Discussion: The results reveal that only bank image and trust significantly affect loyalty, while satisfaction, bank image, and trust are influenced by service quality but not on students’ loyalty. Interestingly, bank image also influences satisfaction. These findings suggest that banks should prioritize building a positive image and trust among customers to enhance loyalty, rather than solely focusing on service quality and satisfaction.

Research Implications: The study offers practical implications for Malaysian banks, highlighting the importance of loyalty for long-term sustainability and targeting undergraduate students as future assets. It contributes to the literature by exploring these relationships specifically among undergraduate students in Malaysia, offering insights for banks to consolidate their market share and tailor products and services for young consumers

Originality/Value: This pioneering study examines how service quality, satisfaction, image, trust, and loyalty interrelate among Malaysian undergraduate students, offering insights for banks targeting young consumers