bluuebunny/crossref_metadata_2025 huggingface dataset:
ASSESSING EFFECTIVENESS JEMBER REGENCY EDUCATION DEPARTMENT WEBSITE USING COBIT FRAMEWORK
Authors: Sari Ciptianingsih Ghonita , Wardoyo Ari Eko , A’yun Qurrota
Published: September 2024

Abstract: In the digital era of transformation, educational websites serve as vital platforms for transparently disseminating information to stakeholders. This study evaluates the effectiveness of the Jember Regency Education Department website using the COBIT 5 framework. This study aims to enhance the effectiveness and usability of the Department of Education website in Jember Regency by aligning it with stakeholders' evolving needs through comprehensive evaluation and targeted recommendations. Employing a qualitative descriptive approach, the research identifies challenges such as mobile optimization issues, slow loading times, security vulnerabilities, and content relevance concerns. Despite commendable accessibility, these challenges significantly impact user experience and website credibility. The findings underscore the urgent need for website optimization, improved security measures, and continuous content updates. This research provides actionable recommendations to align the website with IT governance standards, offering a roadmap for enhancement. Furthermore, the MEA Capability Results highlight discrepancies between the current scores and expected standards, indicating the necessity for comprehensive alignment with COBIT 5 guidelines to optimize website functionality and better meet user expectations.Top of Form            Keywords: COBIT 5 framework; Jember Regency Department of Education; website effectiveness  Abstrak: Pada era transformasi digital, situs web pendidikan menjadi platform penting untuk menyebarkan informasi secara transparan kepada para pemangku kepentingan. Studi ini mengevaluasi efektivitas situs web Dinas Pendidikan Kabupaten Jember menggunakan kerangka kerja COBIT 5. Studi ini bertujuan untuk meningkatkan efektivitas dan kegunaan situs web Dinas Pendidikan di Kabupaten Jember dengan menyelaraskannya dengan kebutuhan yang berkembang dari para pemangku kepentingan melalui evaluasi komprehensif dan rekomendasi yang ditargetkan. Dengan pendekatan deskriptif kualitatif, penelitian ini mengidentifikasi tantangan seperti masalah optimasi seluler, waktu muat yang lambat, kerentanan keamanan, dan kekhawatiran tentang relevansi konten. Meskipun aksesibilitasnya baik, tantangan-tantangan ini secara signifikan memengaruhi pengalaman pengguna dan kredibilitas situs web. Temuan ini menegaskan perlunya pengoptimalan situs web, peningkatan langkah-langkah keamanan, dan pembaruan konten yang berkelanjutan. Penelitian ini memberikan rekomendasi yang dapat dilaksanakan untuk menyelaraskan situs web dengan standar tata kelola TI, menawarkan panduan untuk peningkatan. Selain itu, hasil Kemampuan MEA menyoroti perbedaan antara skor saat ini dan standar yang diharapkan, menandakan kebutuhan akan penyesuaian yang komprehensif dengan pedoman COBIT 5 untuk mengoptimalkan fungsionalitas situs web dan memenuhi harapan pengguna dengan lebih baik.Top of Form Kata kunci: Dinas Pendidikan Kabupaten Jember; efektivitas website; kerangka kerja COBIT 5
SOFTWARE ENGINEERING OF COSTUMER SAVINGS AT LANCANG KUNING UNIVERSITY WASTE BANK
Authors: Asril Elvira , Muzdalifah Indah , Syahtriatna Syahtriatna , Zamsuri Ahmad , Ramadani Indah
Published: September 2024

Abstract: Based on observations and analysis of the current information system and website of the Unilak waste bank, it can be concluded that it is necessary to develop the software and information management system of this waste bank. The application does not yet support the transaction needs at the waste bank. Although there are features, they don’t run as they should. This was also complained about by the director and staff of the Unilak waste bank. Therefore, this study was conducted to design a waste bank transaction management information system and software that will support its business processes, starting from calculating waste prices, managing customer savings to final reports. The research method used is qualitative, using information system analysis techniques and websites that are currently running at the Unilak waste bank. While for the SDLC (software development life cycle) development method, the XP Agile Methodologies cycle is used which is simpler and can be completed in a short time. There are 4 stages, namely Planning (requirements), design, implementation and testing. This study resulted in a customer transaction system design and software development that can help manage customer transaction activities at the Unilak waste bank. Keywords: costumer; savings; software engineering; waste bank.  Abstrak: Berdasarkan observasi dan analisis terhadap sistem informasi dan website bank sampah Unilak yang berjalan saat ini, dapat disimpulkan bahwa perlu dilakukan pengembangan terhadap perangkat lunak maupun sistem informasinya. Aplikasi belum mendukung kebutuhan transaksi di bank sampah. Meskipun ada fitur-fiturnya, namun tidak berjalan sebagaimana mestinya. Hal ini juga dikeluhkan oleh direktur dan pengelola bank sampah Unilak. Maka penelitian ini dilaksanakan untuk merancang sistem informasi transaksi nasabah bank sampah dan perangkat lunak yang akan mendukung proses bisnisnya, yaitu mulai dari perhitungan harga sampah, pengelolaan tabungan nasabah hingga laporan akhir. Metode penelitian yang digunakan adalah kualitatif, menggunakan teknik analisis sistem informasi dan website yang sedang berjalan di bank sampah Unilak. Sedangkan untuk metode pengembangan SDLC (software development life cycle) menggunakan siklus XP Agile Methodologies yang lebih sederhana dan bisa diselesaikan dalam waktu singkat. Terdapat 4 tahap yaitu planning (requirements), analys, design, dan implementation. Penelitian ini menghasilkan rancangan sistem transaksi nasabah dan pengembangan perangkat lunak yang dapat membantu pengelolaan aktivitas transaksi nasabah di bank sampah Unilak. Kata kunci: bank sampah; nasabah; rekayasa perangkat lunak; tabungan.
EXPERT SYSTEM FOR STUNTING DETECTION IN TODDLERS USING DEMPSTER SHAFER METHOD
Authors: Apridonal M Yori , Maharani Dewi , Prayoga J
Published: September 2024

Abstract: Stunting is a chronic or chronic malnutrition that can be seen in the height of toddlers shorter than toddlers their age. the prevalence of toddlers affected by stunting nationally was 37.6 percent (2007) and decreased to 35.8 percent (2010). However, it increased to 37.2 percent (2013) and decreased again to 29.9 percent (2018). The data shows an erratic stunting prevalence. Many factors influence stunting, especially parents' knowledge about balanced nutrition that prevents stunting. Prevention of stunting needs to be done by monitoring nutritional status regularly and fulfilling balanced nutrition for toddlers. For early detection of stunting, an expert system using the Dempster Shafer method is needed. The Dempster Shafer method allows decision making based on various possibilities based on symptoms in toddlers. The results of the expert system calculation show that the Dempster Shafer method can detect stunting in toddlers by more than 90%.      Keywords: dempster shafer; expert system; stunting  Abstrak: Stunting yaitu kekurangan gizi menahun atau kronis yang dapat terlihat pada tinggi badan balita lebih pendek dari balita seusianya. pravelensi balita yang terjangkit stunting secara nasional sebesar 37,6 persen (2007) dan mengalami penurunan menjadi 35,8 persen (2010). Namun meningkat menjadi 37,2 persen (2013) dan menurun kembali menjadi 29,9 persen (2018). Data tersebut menunjukkan pravelensi stunting yang tidak menentu. Banyak faktor yang mempengaruhi stunting khususnya pengetahuan orang tua mengenai gizi seimbang pencegah stunting. Pencegahan stunting perlu dilakukan dengan pemantauan status gizi secara berkala dan pemenuhan gizi seimbang Balita. Untuk deteksi stunting sejak dini dibutuhkan seuatu sistem pakar menggunakan metode dempster shafer. Metode dempster shafer memungkinkan pengambilan keputusan berdasarkan berbagai kemungkinan berdasarkan gejala pada balita. Hasil perhitungan sistem pakar menunjukkan bahwa metode dempster shafer dapat mendeteksi stunting balita lebih sebesar 90%.Kata kunci: dempster shafer; sistem pakar; stunting
DEEP LEARNING FOR CALCULATING BRAIN TUMOR VOLUME IN 3D MRI IMAGES USING HYBRID ACTIVE CONTOUR SEGMENTATION METHOD
Authors: Yuma Febby Madonna , Ramadhani Andrew
Published: September 2024

Abstract: Brain cancer is a serious medical condition that requires intensive and meticulous care. One of the critical steps in identifying brain cancer is the accurate measurement of tumor volume. Magnetic Resonance Imaging (MRI) is one of the most important diagnostic tools used in the medical field for brain visualization. In this discussion, we will explain how the Active Contour method can be used to calculate brain tumor volume in MRI images and how 3D visualization can assist doctors in making better diagnoses and treatment decisions. The Active Contour method, also known as the “Snake,” is an image processing technique used to identify the contours or edges of objects in images. This method works by defining an initial curve around the desired object and then iteratively shifting the curve to match the actual contour of the object in the image. In this study, the Active Contour method will be applied to brain MRI images to identify tumor edges. This research represents an important step in improving the care of brain cancer patients, enabling more accurate diagnoses and more effective treatmentsKeywords: active contour; brain cancer diagnosis; 3D visualization; tumor volume  Abstrak: Kanker otak merupakan kondisi medis yang bersifat serius dimana memerlukan perawatan yang intensif dan teliti. Salah satu langkah penting dalam mengidentifikasi kanker otak adalah dengan mengukur volume tumor secara akurat. Citra Magnetic Resonance Imaging (MRI) adalah salah satu alat diagnostik yang paling penting dalam bidang medis yang digunakan untuk visualisasi otak. Dalam pembahasan ini, akan dijelaskan bagaimana metode Active Contour dapat digunakan untuk menghitung volume tumor otak pada citra MRI dan bagaimana visualisasi 3D dapat membantu dokter dalam diagnosis dan perawatan yang lebih baik. Metode Active Contour, juga dikenal sebagai “Snake,” yaitu teknik pengolahan citra yang digunakan untuk mengidentifikasi kontur atau tepi objek dalam citra. Metode ini bekerja dengan mendefinisikan suatu kurva awal di sekitar objek yang diinginkan dan kemudian menggeser kurva tersebut secara iteratif untuk menyesuaikan dengan kontur objek yang sesungguhnya dalam citra. Dalam penelitian ini, metode Active Contour akan diterapkan pada citra MRI otak untuk mengidentifikasi tepi tumor. Penelitian ini merupakan langkah penting dalam meningkatkan perawatan pasien yang terkena kanker otak dan memungkinkan diagnosis yang lebih tepat dan perawatan yang lebih efektif.Kata kunci: active contour; diagnosis tumor otak; visualisasi 3D; volume tumor
Factors Causing Diagnostic Delay and Treatment Delay Patient Breast Cancer in Universitas Andalas Hospital
Authors: Alfaini Fadhli , Rafli Rhandyka , Oktara Meta Zulyati
Published: September 2024

Background: Diagnostic and treatment delays are contributing factors to the increasing incidence and mortality of breast cancer worldwide, including in Indonesia. The study aimed to discern the underlying factors contributing to diagnostic and treatment delays in breast cancer patients.  Methods: This study uses a descriptive method. Primary data collection through guided interviews using questionnaires to 40 breast cancer patients who underwent treatment. This study was conducted at the University Andalas Hospital from January 2022 to September 2022. Results: The breast cancer diagnostic delay is caused by poor knowledge (52.5%), negative attitudes and behaviors (57.5%), a strong fear of breast cancer (55.0%), good social support (65.0%), and the impact of the Coronavirus Disease 2019 (COVID-19) pandemic on breast cancer examination (75.0%). The breast cancer treatment delay is due to poor knowledge (52.5%), positive attitudes and behaviors (52.5%), a strong fear of breast cancer treatment (55.0%), good social support (67.5%), the impact of the COVID-19 pandemic on breast cancer treatment (75.0%). Conclusions: The overview of factors causing diagnostic delay and treatment delays in breast cancer patients is dominated by negative categories, particularly in terms of knowledge, attitudes and behaviors, fear, and the COVID-19 pandemic. Only social support is positive, falling into a good category, as well as the attitudes and behaviors related to breast cancer treatment, which are also categorized as good.
The Association of Circumcision and Genitourinary Cancer, Especially Penile Cancer and Prostate Cancer: A 30-Year Systematic Review and Meta-Analysis
Authors: Surya Prima Ardiansah , Putratama Alfin , Surya Radika Naufal Hadi , Ananda Gede Yogi Prema
Published: September 2024

Background: The relationship between genitourinary cancer and circumcision has been debated for a long time. Two types of genitourinary cancer that are often discussed in relation to circumcision are penile cancer and prostate cancer. Methods: A systematic review was conducted on the Science Direct database and Perish with the following databases: Pubmed, Google Scholar, and Crossref. Case-control studies were assessed with the Newcastle-Ottawa Scale. Meta-analysis was performed on penile cancer in situ, invasive penile cancer, and prostate cancer. Meta-analysis of proportions was carried out on penile cancer. Results: 10 studies were analyzed for penile cancer and prostate cancer, and 9 studies were analyzed for penile cancer proportion. Total OR in circumcision and penile cancer in situ (OR = 0.90; 95% CI 0.48–1.69; p = 0.74). Total OR in circumcision and invasive penile cancer (OR = 1.04; 95% CI 0.27–3.94; p = 0.95). Total OR in circumcision and prostate cancer (OR = 0.97; 95% CI 0.79–1.19; p = 0.78). The uncircumcised proportion among penile cancer cases (0.82; 95% CI 0.60–0.97). Conclusions: There was no significant relationship between circumcision and genitourinary cancer. Malignant cells in penile cancer and prostate cancer occur due to a chronic inflammatory process.
The Role of Biphosphonate and Denosumab in Bone Metastasis
Authors: Cahyanur Rahmat , Pravita Aravinda
Published: September 2024

Metastasis is a major contributor to cancer-related morbidity and mortality. Bone metastasis is prevalent and associated with pain and fractures, particularly in breast cancer where up to 80% of patients may be affected. Bisphosphonates, traditional anti-resorptive drugs, have been crucial in managing bone metastatic cancers. This article reviews the pathophysiology of bone metastasis, focusing on the invasion-metastasis cascade and the role of matrix metalloproteinases (MMPs). The formation of metastatic tissue in bones involves disrupting the balance of the bone remodeling process. The study delves into the three generations of bisphosphonates, elucidating their structural differences and mechanisms of action. First-generation bisphosphonates, such as etidronate and clodronate, lack nitrogen and interfere with cellular processes. Second-generation bisphosphonates, including alendronate and pamidronate, bind to nitrogen and inhibit farnesyl pyrophosphate synthase (FPPS) in the mevalonate pathway. Third-generation bisphosphonates like risedronate and zoledronate have a heterogeneous nitrogenous chain, enhancing anti-resorptive activity. Denosumab's distinct pharmacokinetics and potential risks upon discontinuation are discussed. The article emphasizes the need for clinicians to be vigilant about potential adverse effects, especially kidney toxicity with bisphosphonates, and to tailor treatment based on individual patient characteristics.
The Most Powerful Member of the Power-Divergence Family for the Independence Model in Contingency Tables
Authors: Altun Gokcen
Published: September 2024

The family of power-divergence (PD) test statistic contains many well-known test statistics used in the analysis of the contingency tables under the independence model. In this work, we compare the various test statistics for the independence model. The type-I and type-II errors of the test statistics are obtained and compared via simulation study considering the different degree of freedoms and sample sizes. According to the simulation results, we recommend the PD(0.4) test statistic for the small sample size based on its power and type-I error rates. Two applications are given to demonstrate the usefulness of the PD(0.4) test statistic over the chi-square test statistic {contingency tables}.
CHATGPT IN FOREIGN LANGUAGE TEACHING AND ASSESSMENT: EXPLORING EFL INSTRUCTORS’ EXPERIENCE
Authors: Zaiarna Inna , Zhyhadlo Olena , Dunaievska Olha
Published: September 2024

The paper presents the results of the first stage of the research into the specifics of ChatGPT application in assessment development for English as a Foreign Language (EFL) courses. The article aims to investigate the perceptions of English language teachers regarding the utilization of ChatGPT in their teaching and assessment practices obtained through a survey in order to establish the degree of their familiarity with the possibilities of ChatGPT for teaching a foreign language and the mechanics of AI-generated test tasks design. The participants are mostly experienced English language instructors, affiliated with higher education institutions in Ukraine, the EU and the USA. Findings reveal varying levels of respondents’ confidence in ChatGPT's functionalities. A considerable proportion of educators appeared to be either unfamiliar with ChatGPT or possess limited knowledge of its capabilities. Hesitancy in implementing ChatGPT in teaching practice primarily stems from a lack of guidance as to its effective utilization closely followed by academic integrity concerns. However, educators who have employed ChatGPT recognize its potential as an assistant in lesson planning, content creation, task design, and assessment, especially for vocabulary, grammar, and writing. Despite acknowledging the tool's benefits, respondents express reservations about ChatGPT-generated tasks’ accuracy for assessment purposes. Challenges include the need for meticulous proofreading, issues with biased information, and insufficient task complexity. Nonetheless, overall satisfaction levels among educators implementing ChatGPT range from moderate to high, substantiating its value in foreign language teaching. Thus the survey stage of the research revealed the growing interest in ChatGPT’s potential for foreign language teaching and assessment among Ukrainian and international EFL and ESP instructors and underscored the need for guidelines and recommendations to create effective ChatGPT-generated test tasks. Future research will develop criteria for evaluating ChatGPT-generated tasks, provide prompt design guidelines, and formulate ethical policies for AI in assessment, addressing educators' concerns and
Te’vîl Yöntemi Ve Mezhebî Kimliğinin Kur’ân Yorumuna Etkisi Bağlamında Rummânî’nin El-Camiʿ Li-İlmi’l-Kur’ân Adlı Tefsiri
Authors: Dilek Burcu
Published: September 2024

Muʿtezile’nin Kur’ân ve tefsir anlayışına dair görüşleri tefsir tarihinde birçok kavram ve nazariyenin tartışılmasına, sünnî müfessirlerin özellikle iʿtikadî konulardaki te’vîllerini Muʿtezile’ye muhalif bir kurguyla şekillendirmesine zemin hazırlamıştır. Böylece ayetlerin farklı yönlerden yorumlandığı bir te’vîl çeşitliliği meydana gelmiştir. Dolayısıyla Muʿtezile tefsiri, literatürde bıraktığı etki bakımından ciddi bir öneme sahiptir. Rummânî de mezhebi içerisindeki konumu ve ilmî birikimi açısından Muʿtezilî müfessirler arasında dikkat çeken bir isim olmuştur. Bununla birlikte Rummânî’nin tefsirine dair yapılan çalışmaların sınırlı olduğu söylenebilir. Bu çalışmada, müellifin tefsir yöntemi ve Muʿtezilî oluşunun ayet yorumlarına ne ölçüde yansıdığının tespiti amaçlanmaktadır. Bahsedilen amacı gerçekleştirmek için betimleyici içerik analizine başvurulmuş ve tefsirdeki mezhebî atıflar tematik olarak tasnif edilmiştir. Daha bütüncül bir değerlendirme yapabilmek adına tefsirin sınırlı bir kısmını içeren matbu nüshasının yanında, tefsir tarihinde ve çağdaş literatürde Rummânî’nin tefsirine yapılan atıflar da dikkate alınmıştır. Tefsir, ilk olarak Rummânî’nin te’vîl yöntemi ve tefsirinde başvurduğu ilimler açısından tahlil edilmektedir. Bunun yanında Rummânî’nin, Muʿtezilî esasları tefsirine ne ölçüde ve hangi kavramlarla yansıttığı analiz edilmektedir. Neticede müellifin teorik olarak bahsettiği te’vîl yöntemini tefsirine uyguladığı, mezhebî kimliğini özellikle hüsün, kubuh, aslah kavramları, Allah’ın sıfatları ve fiilleri gibi bazı konularda ayet yorumlarına tutarlı şekilde yansıttığı tespit edilmiştir.
Research on the settlement rules with the forecast error penalty of aggregation of photovoltaic systems and energy storage systems considering the capacity factor-based capacity payment coefficient
Authors: Cha Seong-Hyeon , Ko Woong
Published: September 2024

Distributed energy resources are gaining worldwide momentum as a key strategy for achieving carbon neutrality. However, their inherent volatility and unpredictability pose significant challenges to the stability and efficiency of power system operations. In the Korean electricity market, the incentives for forecasting renewable energy generation are inadequate for enhancing prediction accuracy. Consequently, there is a growing effort to develop methods to seamlessly integrate aggregated resources into the electricity market, thereby addressing the shortcomings of current incentive structures. With this trend, the previous study introduced the concept of a capacity factor-based capacity payment coefficient aimed at mitigating the gap between installed and available capacity of the aggregator. Nonetheless, the proposed approach could not enhance the reliability of the aggregator’s available capacity. Thus, we aim to present a penalty system capable of minimising the prediction errors associated with aggregated resources. Furthermore, we intend to develop a settlement rule that incorporates the penalty within the previously proposed capacity factor-based capacity payment coefficient. To assess the effectiveness of our proposed settlement rule, we conduct a comprehensive case study, comparing profit outcomes with and without the application of the penalty. Our analysis encompasses variations in profit for aggregators and strategies for their profit maximisation.
Polycystic ovarian disease in aquarium-managed cownose rays Rhinoptera bonasus
Authors: Barrett CE , Fogelson S , Carlson A , Berliner A , Torres J , Michaels L , Daniel W , Hughes SM , Comolli J , Stilwell JM
Published: September 2024

Significant knowledge gaps remain in our understanding of the reproductive physiology and diseases of elasmobranchs. The objective of this work is to describe the clinical, imaging, and pathologic findings associated with polycystic ovaries in cownose rays housed in public aquariums. Ten adult female cownose rays Rhinoptera bonasus housed in 4 public aquariums presented with variable nonspecific (lethargy, anorexia, cutaneous discoloration) or no clinical signs. Clinical antemortem examination revealed a large, heterogeneously hyperechoic mass with many variably sized and shaped anechoic cavitations within the coelom on ultrasound in 2 animals. Necropsies of 10 animals revealed polycystic, fluid-filled ovarian masses filling approximately 65-75% of the coelomic cavity in severe cases along with substantial liver atrophy. Microscopically, the masses were composed of delicate connective tissue supporting a combination of cysts lined by attenuated squamous to foamy columnar epithelium, hemorrhage, embedded anovulatory follicles, and oocytes along the periphery. Polycystic ovarian disease is understudied in elasmobranchs and presumptively resulted from failure of follicular ovulation in these cases. Along with southern stingrays, cownose rays appear to be at heightened risk for developing polycystic ovaries under human care. Further study into disease prevalence, epidemiologic factors, etiopathogenesis, and treatment modalities are needed in order to prevent and medically manage this condition in cownose rays under human care.
Effect of Vermicompost Supplement on Rainbow Trout Performance
Authors: Parsa Khanghah Ali , Can Erkan
Published: September 2024

Vermicompost is the product of organic waste digestion by earthworms besides aerobic decomposition at ambient temperature. It is a rich composition containing plant nutrients and beneficial microorganisms. Some fishes, especially predatory species such as rainbow trout, need nutritive feed so that they can be healthy; a useful and cheaper additive such as vermicompost can supply this aim. In this study, the effect of different percentages of vermicompost in the diet of rainbow trout was investigated. For this purpose, 100 rainbow trout with an average weight of 120±3 g were distributed in 5 groups in concrete tanks. Their nutrition and physical and chemical water parameters were determined according to the standard. Vermicompost with confirmable analysis was added to their daily feed (2, 4, 6, and 10%). After 2 months, the feed conversion ratio and survival rate were examined. The results showed that there was a significant relationship between the performance of the control group and the treatment groups (p
Non trivial zeros of the generalized Zeta function
Authors: OUKIL Walid
Published: September 2024

In this paper, the generalized Riemann Zeta function is defined on the right half-plane. In particular, this allows us to prove for every $\tau\in \mathbb{R}$ there exists at most one point $r\in (0,1)$ such that $|\zeta(r+i\tau) |=0$.
EVALUASI PENGERINGAN RODENTISIDA MENGGUNAKAN METODE UDARA KERING DENGAN BANTUAN INSTRUMEN KIPAS ANGIN
Authors: Arshy David Permana , Nugroho Imam Wahyu Beny , Muharja Maktum , Khotimah Husnul , Salsabila Putri Ayu
Published: September 2024

Tikus sawah (Rattus argentiventer) menjadi hama utama pada tanaman padi yang menyebabkan kerusakan dan kehilangan hasil panen, sehingga dibutuhkan pengendalian untuk mengatasi tikus yaitu rodentisida. Tingginya populasi tikus mengakibatkan meningkatnya kebutuhan rodentisida, namun terdapat permasalahan pada proses pengeringan yang membutuhkan waktu selama 20 jam. Penelitian ini bertujuan untuk mengevaluasi proses pengeringan rodentisida dengan bantuan instrumen kipas angin menggunakan variabel waktu pengeringan 1 jam, 2 jam, 3 jam, 4 jam, dan 5 jam. Metode percobaan yang digunakan adalah metode pengeringan udara kering dengan bantuan kipas angin. Parameter yang diuji adalah parameter kadar air, fisik, dan kemurnian bahan aktif rodentisida. Hasil percobaan menunjukkan bahwa semakin lama waktu pengipasan mengakibatkan terjadinya kenaikan kadar air setelah 3 jam dan semakin lama waktu pengipasan membuat tekstur rodentisida semakin keras dan kering. Berdasarkan penelitian ini didapatkan bahwa kondisi paling optimum adalah pada waktu selama 3 jam dengan kondisi fisik yang sempurna dan kadar air yang rendah.
EFEKTIFITAS DARI PERANCANGAN ULANG TATA LETAK LABORATORIUM IC (INTERMEDIATE CONTROL) TERHADAP PROSES PRODUKSI H2O2 DI INDUSTRI PEROKSIDA
Authors: Nurhaliza Siti , Maryanty Yanty
Published: September 2024

Laboratorium IC (Intermediate Control) merupakan tempat pengujian spesifikasi produk akhir dan pemantauan efisiensi proses, sehingga laboratorium ini sangat dibutuhkan di Industri Peroksida. Laboratorium IC berperan penting dalam pengendalian standar dan mutu produk, sehingga kelayakan bangunan, luas dan penempatan di laboratorium IC harus sesuai dengan SNI (Standar Nasional Indonesia). Penelitian dilakukan untuk menganalisis tata letak ruang dan fasilitas pada laboratorium IC dan disesuaikan dengan persyaratan sistem mutu laboratorium SNI ISO/IEC 17025: 2008. Dilakukan analisis penempatan fasilitas laboratorium terkini, dilakukan perhitungan luas laboratorium yang diperlukan, analisis kedekatan fasilitas dengan membuat ARC dan ARD sehingga didapatkan hasil akhir berupa layout laboratorium IC yang sesuai dengan SNI. Berdasarkan penelitian ini didapatkan bahwa tata letak area kerja dan fasilitas pada laboratorium IC pada Industri Peroksida tidak sesuai dengan sistem mutu laboratorium sehingga perlu dilakukan pembaruan berdasarkan layout baru yang dihasilkan berdasarkan penelitian yang telah dilakukan. Parameter yang digunakan adalah tata letak laboratorium IC yang disesuaikan dengan persyaratan sistem manajemen mutu laboratorium SNI/IEC 17025:2008 untuk membuat gedung laboratorium yang lebih tertib, layak dan sesuai dengan standar yang digunakan. Sehingga diharapkan analis laboratorium IC menghasilkan data yang valid untuk membantu pihak production control dalam menjaga efisiensi proses produksi H2O2 berdasarkan data analis yang dihasilkan.
ANALISIS KELAYAKAN PRARANCANGAN PABRIK MINUMAN KOMBUCHA DARI TEH HIJAU DENGAN KAPASITAS 2000 TON/TAHUN BERDASARKAN EVALUASI EKONOMI
Authors: Wulandari Desy Fitria , Dewi Ernia Novika
Published: September 2024

Kesehatan telah menjadi fokus utama masyarakat modern yang mempengaruhi pilihan konsumsi mereka secara signifikan. Salah satu tren yang menonjol adalah minat yang meningkat terhadap minuman sehat seperti minuman kombucha yang berasal dari teh hijau. Oleh karena itu, prarancangan pabrik minuman kombucha dilakukan dengan tahapan awal melakukan analisis evaluasi ekonomi untuk menentukan kelayakan berdirinya suatu pabrik. Pendirian pabrik minuman kombucha dari teh hijau direncanakan pada tahun 2026 dengan kapasitas 2000 ton/tahun. Perhitungan dimulai dari penaksiran indeks harga tahun 2026 untuk menghitung harga peralatan dengan persamaan linier. Didapatkan total harga peralatan dengan faktor keamanan 20% sebesar Rp 9.300.201.195. Laba kotor didapatkan sebesar Rp 5.719.690.514 dan laba bersih sebesar Rp 3.717.798.834. Nilai Return On Investment (ROI) sebesar 38% dengan Pay Out Time (POT) selama 2,1 tahun. Break Even Point (BEP) dihasilkan 57% pada kapasitas 1143 ton/tahun dan titik Shut Down Point (SDP) sebesar 36%. Perhitungan Internal Rate of Return (IRR) menggunakan metode cashflow didapatkan nilai 19% yang berada diatas nilai suku bunga bank sebesar 12%. Dari perhitungan menggunakan beberapa parameter untuk analisis ekonomi dapat dinyatakan bahwa pabrik minuman kombucha dari teh hijau dengan kapasitas 2000 ton/tahun layak untuk didirikan.
PERBANDINGAN KUALITAS PRODUK SODIUM HYPOCHLORITE MONOPOLAR ELECTROLYZER DENGAN BIPOLAR ELECTROLYZER PADA INDUSTRI KLOR-ALKALI
Authors: Tsabita Agatha Rifda , Santosa Sandra , Wahjoedi Ryan Ayub
Published: September 2024

Industri klor-alkali merupakan salah satu jenis industri yang menggunakan proses elektrolisis dengan produk samping berupa excess gas Cl2. Lepasnya gas Cl2 sangatlah berbahaya, sehingga pemanfaatan excess gas Cl2 dapat membantu untuk mengurangi tingkat bahaya tersebut. NaOCl atau Sodium Hypochlorite merupakan salah satu bahan kimia yang didapatkan dari pereaksian antara NaOH atau Natrium Hidroksida dengan gas Cl2. Terdapat dua jenis alat proses elektrolisis, yaitu Monopolar Electrolyzer dan Bipolar Electrolyzer untuk memproduksi bahan baku dari pembuatan NaOCl atau sodium hypochlorite. Selain kadar klor aktif sebagai Cl2 dan pengujian kadar alkali bebas sebagai NaOH yang sesuai dengan SNI, tingkat kejernihan juga menjadi salah satu pertimbangan pelanggan. Berdasarkan dua jenis alat tersebut, terdapat perbedaan kejernihan produk NaOCl atau sodium hypochlorite. Penelitian ini bertujuan untuk menganalisis penyebab adanya perbedaan kualitas produk antara Monopolar Electrolyzer dengan bipolar Electrolyzer. Analisis yang dilakukan adalah pengujian kadar klor aktif dan pengujian kadar alkali bebas dengan titrasi, serta pengecekan tingkat kejernihan produk dengan pengamatan fisik. Berdasarkan hasil analisis, terdapat perbedaan tingkat kejernihan produk yang disebabkan karena perbedaan proses treatment brine sebelum masuk Electrolyzer, treatment gas Cl2 keluaran Electrolyzer, treatment dalam penurunan konsentrasi NaOH, dan perancangan alat serta utilitasnya.
EFEKTIVITAS TEPUNG TEH DAN TEPUNG AMPAS TEH SEBAGAI FILLER PHENOL-FORMALDEHYDE RESIN TERHADAP KUALITAS PLYWOOD
Authors: Afrillia Ellysa Rahma , Sulha Balgis , Santosa Sandra , Prayitno Prayitno , Sulistio Any
Published: September 2024

Hasil polimerisasi kondensasi antara phenol dengan formaldehyde disebut phenol-formaldehyde resin yang diaplikasikan untuk merekatkan lapisan veneer pada kayu lapis kelas eksterior. Bahan pengisi atau filler ditambahkan pada phenol-formaldehyde resin untuk meningkatkan keteguhan rekatnya. Bahan ini biasanya mengandung selulosa. Ditinjau dari kandungan selulosa yang cukup besar pada teh 34%  dan ampas teh 43,87%, maka digunakan kedua bahan tersebut sebagai alternatif bahan pengisi (filler). Tujuan penelitian adalah untuk mengidentifikasi  pengaruh kadar filler tepung teh dan tepung ampas teh terhadap viskositas phenol-formaldehyde resin serta pengaruhnya terhadap kualitas plywood. Penelitian dilakukan menggunakan metode pengempaan dingin selama 30 menit dan pengempaan panas dengan suhu 125°C selama 330 detik. Variabel tetap yang digunakan yaitu jenis veneer berupa kayu meranti, phenol-formaldehyde resin sebagai perekat, dan waktu pengadukan selama 5 menit. Sedangkan, variabel bebas yang digunakan adalah tepung ampas teh dan tepung teh sebagai filler dengan kadar 12,5% dan 6%. Efektivitas penambahan filler dinilai dari hasil analisis bonding strength dan delaminasi. Hasil penelitian menunjukkan bahwa kadar filler yang ditambahkan dapat meningkatkan viskositas campuran. Hasil bonding strength dan delaminasi menunjukkan bahwa tepung ampas teh dan tepung teh telah memenuhi JAS dengan nilai rata-rata tepung ampas teh yang lebih besar baik pada range viskositas 20-30 Poise (kadar filler 12,5%) dan 6-10 Poise (kadar filler 6%). Sehingga, tepung teh dan tepung ampas teh dapat dijadikan sebagi filler phenol-formalehyde resin.
ANALISIS PROSES KIMIA DALAM SIKLUS UAP AIR DI PLTU PAITON UNIT 1 DAN 2
Authors: Rahmawati Amelia Umi , Wikendi Lika , Maryanty Yanty , Yusuf Novan Kurnia
Published: September 2024

Energi listrik merupakan pilar utama dalam mendorong perkembangan berbagai sektor kehidupan manusia. PLTU merupakan pembangkit listrik tenaga uap yang memanfaatkan tenaga kinetik yang berasal dari uap air untuk menghasilkan energi listrik. Pada proses pembuatan uap, air harus dilakukan pengolahan terlebih dahulu untuk menghindari pembentukan kerak dan korosi pada peralatan yang dapat mengganggu produksi. Penelitian ini bertujuan untuk mengetahui parameter analisis proses kimia pada siklus uap air serta untuk mempelajari cara mengontrol parameter siklus uap air dan bahan bakar. Metodologi yang digunakan pada penelitian ini meliputi analisis daya hantar listrik (konduktivitas), uji kadar klorida, uji kadar fosfat, serta uji kadar hydrazine dengan variabel yaitu jenis air yang dihasilkan dari proses yang berbeda. Hasil menunjukkan bahwa kondisi air selama bulan Januari di PT PLN Nusantara Power relatif aman, pada condensat water nilai pH>9,5; sepesific conductivity>9, serta cation conductivity<0,3 us/cm. Namun, pada air boiler terdapat satu hari dengan kadar silika tinggi (200 ppb), yang memerlukan tindak lanjut perbaikan kualitas air. Dari penelitian yang sudah dilakukan dapat disimpulkan bahwa parameter analisis yang digunakan berguna untuk mengontol parameter kualitas air di PT PLN Nusantara Power, dari hasil analisis yang didapatkan dapat diketahui informasi mengenai kerusakan alat dan kelayakan air dalam siklus uap air
EDUKASI PENCEGAHAN MONEY POLITIC TERHADAP PEMILU TAHUN 2024 DI DESA SUMERTA KAUH
Authors: Pratiwi Nuning Indah , Sari Ni Luh Putu Ananda
Published: September 2024

Money politic atau politik uang merupakan aktivitas yang dilakukan oleh pihak calon atau anggota partai politik untuk mempengaruhi suara rakyat dalam memilih pasangan calon melalui pemberian uang kepada masyarakat. Bahayanya politik uang dapat menggerus sistem demokrasi di Indonesia. Kegiatan politik uang ini menjadi kebiasaan yang sering terjadi ketika mulai kegiatan pemilihan umum. Beberapa masyarakat sudah merasa terbiasa dengan fenomena politik uang ini, sedangkan kegiatan politik uang merupakan kegiatan yang koruptif dan melanggar hukum. Meskipun begitu, kegiatan politik uang ini dapat dihentikan dengan cara pengabdian masyarakat di Desa Sumerta Kauh. Kegiatan pengabdian masyarakat dilakukan dengan tujuan untuk memberikan edukasi kepada masyarakat Desa Sumerta Kauh tentang pencegahan politik uang sebelum terjadinya pemilu tahun 2024. Metode kegiatan ini menggunakan metode sosialisasi dengan judul “Pencegahan money politic terhadap pemilu tahun 2024”. Hasil dari kegiatan sosialisasi ini yaitu memberikan edukasi kepada masyarakat desa mengenai pengertian politik uang. Selanjutnya masyarakat diberikan pemahaman tentang bagaimana bahayanya jika politik uang terus terjadi dimasyarakat. Materi penutup dari sosialisasi ini yaitu mengenai strategi pencegahan politik uang terhadap pemilu tahun 2024. Masyarakat telah sepakat bekerjasama dalam kegiatan sosialisasi ini untuk mengingkatkan masyarakat lainnya agar tidak menjadi penerima ataupun pelaku dari kegiatan money politic/politik uang di Desa Sumerta Kauh.
LEARNING BY DOING HIDROPONIK DARI WARGA UNTUK WARGA
Authors: Daurrohmah Eka Wirajuang , Hendrian  , Robiansyah Anton , Puspitasari Nindya Farah Dwi , Firman Antares
Published: September 2024

Kompleks Bukit Pamulang Indah merupakan kompleks yang penduduknya aktif dalam kegiatan bermasyarakat. Salah satu kegiatan yang dapat memberikan manfaat kepada warga adalah dengan memberikan kegiatan pembelajaran. Penting untuk selalu terbuka terhadap kesempatan untuk belajar dan meningkatkan diri, baik melalui pendidikan formal atau informal. Belajar sambil praktik dapat membantu mengatasi masalah ketika seseorang kesulitan memahami konsep secara teoretis. Manfaat yang diharapkan dari kegiatan pelatihan kepada masyarakat adalah peningkatan kualitas hidup masyarakat dengan memperoleh keterampilan. Metode ditawarkan oleh tim PkM adalah pelatihan praktek hidroponik. Kegiatan ini merupakan kegiatan lanjutan dari kegiatan PkM tahun sebelumnya yang berupa perancangan taman belajar online terbuka yang berisi content pembelajaran. Salah satu content pembelajaran tersebut berupa pembelajaran hidroponik. Hasil dari kegiatan ini yaitu telah dipahaminya materi hidroponik dan dapat dilaksanakannya pelatihan hidroponik oleh peserta pelatihan.
Nutritional Status and Food Habits of Child Labor in Rangpur City, Bangladesh
Authors: Islam Md Rafiul , Promity Jannatul Ferdous , Afroz Khanam Maraj , Kaniz Sadia Marjan , Hassan Md. Razibul , Islam Khandaker Fadwana
Published: September 2024

Background: In Bangladesh, the harsh reality of child labor persists, with over 8 million children engaged in such work. This not only deprives them of their childhood but also has severe implications for their mental and physical health. This study seeks to investigate the daily food intake and nutritional status of child laborers in Rangpur City, shedding light on the broader health impacts of child labor in this region. Methods: The study employed a structured questionnaire and anthropometric measurements to assess the socioeconomic status and dietary habits of participants. Pretesting ensured questionnaire accuracy, while daily and weekly recall methods captured comprehensive food consumption data. Socioeconomic inquiries included income, education, employment, and family details, providing a holistic understanding of participants' circumstances. Results: The survey highlights that most working children are aged 12-14, predominantly employed in mechanics and sales, working long hours under precarious conditions for low wages, primarily to support their families. Despite some attending primary school and receiving employer-provided meals and medical aid, these children struggle with inadequate education and nutrition, and a high incidence of workplace accidents. Conclusion: Child laborers have often poorer nutritional status than the average person. They are not provided with a proper diet. Consequently, they are dealing with various health problems.
Evaluating the Impact of Nabila Cantika’s Innovation on Reducing Stunting in the Kawedanan Community Health Center, Magetan, Indonesia
Authors: Handayani Mastuti , Setiyani Astuti , Sunarto Sunarto , Wisnu Nurwening Tyas
Published: September 2024

Background: Nabila Cantika is an innovation to overcome the problem of stunting. This innovation is in the form of toddler class training involving grandmothers. The training was conducted twice, each lasting 120 minutes. The novelty of the study lies in the involvement of grandmothers in the Toddler class. The purpose of the study was to evaluate the effectiveness of the Nabila Cantika innovation in reducing stunting rates. Methods: This study was descriptive and was conducted at the Kawedanan Health Center, Magetan, Indonesia, from February to May 2024. The study population consisted of 90 stunted toddlers cared for by their grandmothers. Samples were taken from the entire population that met the inclusion criteria. The independent variable was grandmothers who attended the Toddler class. Data collection used observation sheets and secondary data in the form of reports from nutrition officers. Data analysis was carried out descriptively, and the effectiveness of this innovation was tested using the McNemar test. Results: The results showed that the effectiveness of the Nabila Cantika program varied in each village. Before the innovation was implemented, 71 toddlers (78.9%) were classified as short, and 19 toddlers (21.1%) were classified as very short. After the innovation was implemented, out of 71 toddlers who were classified as short, 48 toddlers (67.6%) increased to the normal category, while 23 toddlers (32.4%) were still classified as short. Out of 19 toddlers who were classified as very short, 8 toddlers (42.2%) remained in that category, while 10 toddlers (57.8%) increased to the short category. This program has proven effective in reducing stunting rates with a significance value of 0.000. Conclusion: Nabila Cantika's innovation has proven very effective in reducing stunting rates in the Kawedanan Health Center area. This program needs to be continued and monitored until it reaches the target of zero stunting.
Toxoplasma-induced behavior changes - is microbial dysbiosis the missing link?
Authors: Prandovszky Emese , Severance Emily G. , Splan Victor W. , Liu Hua , Xiao Jianchun , Yolken Robert H.
Published: September 2024

Toxoplasma gondii (T. gondii) is one of the most successful intracellular protozoa in that it can infect the majority of mammalian cell types during the acute phase of infection. Furthermore, it is able to establish a chronic infection for the host’s entire lifespan by developing an encysted parasite form, primarily in the muscles and brain of the host, to avoid the host immune system. The infection affects one third of the world population and poses an increased risk for people with a suppressed immune system. Despite the dormant characteristics of chronic T. gondii infection, there is much evidence suggesting that this infection leads to specific behavior changes in both humans and rodents. Although numerous hypotheses have been put forth, the exact mechanisms underlying these behavior changes have yet to be understood. In recent years, several studies revealed a strong connection between the gut microbiome and the different organ systems that are affected in T. gondii infection. While it is widely studied and accepted that acute T. gondii infection can lead to a dramatic disruption of the host’s normal, well-balanced microbial ecosystem (microbial dysbiosis), changes in the gut microbiome during the chronic stage of infection has not been well characterized. This review is intended to briefly inspect the different hypotheses that attempt to explain the behavior changes during T. gondii infection. Furthermore, this review proposes to consider the potential link between gut microbial dysbiosis, and behavior changes in T. gondii infection as a novel way to describe the underlying mechanism.
Design and development of an IoT-based trolley for weighing the patient in lying condition
Authors: Meenatchi Sundaram S. , Naik Jayendra R. , Natarajan Manikandan , Acharya K Aneesha
Published: September 2024

Introduction

An immobile patient cannot be weighed on a stand-on weighing machine, i.e., a bathroom scale. They have to get weighed while lying, which is not easy. The main objective of this research is to design a medical apparatus that measures the patient's weight in a lying condition. To achieve this the apparatus is designed as a stretcher to carry the patient in and around the hospital.

Methods

The stretcher has four load cells to measure the patient's weight; it can bear a weight of 500 kg and has a self-weight of 20 kg. A Microcontroller unit (MCU) is embedded into the apparatus to weigh the patient lying on it. The stretcher comprises the top frame, middle frame, and base frame. The top frame can be detached and mounted back to the middle frame; this will help the medical personnel shift the patients from a medical bed. The middle frame is a plate structure where the four load cells are mounted at the corners of the lower plate. The upper plate functions as a pressure plate on the load cell. The base plate has four heavy-duty wheels that can bear the load. The middle frame and base frame, together, form a single structure, giving mobility to the structure. A control panel is employed with reset, tare, and on-off buttons to control the embedded platform. The LCD panel on the side of the apparatus shows the weight when the patient is placed on top of the apparatus.

Results and discussion

A prototype trolley equipped with a wireless data logging system was tested on 10 healthy participants. The device accurately measured weight within ±50 g across a scale range of 2–140 kg, with data captured every 30 s over a 5-min testing period. Wireless communication was successfully demonstrated over a 100-m range. The important add-on feature of this work is the apparatus is connected to the internet, transforming it into an IoT-based medical device.
Subtle yet encouraging developments: exploring intergroup relations between Arab and Jewish college students over seven years
Authors: Sindiani Mahmood , Hellerstein Devora , Sky Bosmat , Ben Zaken Sigal , Arnon Michal
Published: September 2024

Introduction

This study investigates the dynamics of intranational intergroup contact between Arab and Jewish students in a higher education institution in Israel. Guided by the contact hypothesis, the research examines the gap between students’ willingness for intergroup closeness and their reported actual intergroup interactions.

Methods

Using a cross-sectional survey design, quantitative data were collected from a total of 733 Arab and Jewish students at two timepoints: in 2016 (n = 419) and in 2023 (n = 314). All students were studying to become physical education teachers.

Results

The findings revealed both persistent challenges and encouraging trends in intergroup relationships. Despite reported willingness for meaningful connections, the students’ reported actual intergroup interactions remained limited. A significant increase in willingness for academic and friendship relationships was observed from 2016 to 2023, suggesting the potential for constructive change. Arab students consistently reported higher willingness for closeness and more frequent interactions than their Jewish counterparts.

Discussion

These findings underscore the importance of structured interventions in higher education settings to foster meaningful intergroup relations, amidst broader societal challenges.