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All Journal JOURNAL OF SCIENCE AND SOCIAL RESEARCH SCRIPTA SCORE Scientific Medical Journal Engineering, Mathematics and Computer Science Journal (EMACS) Narra J JIMKI: Jurnal Ilmiah Mahasiswa Kedokteran Indonesia Journal Arbitrase : Economy, Management and Accounting
Elbert, Elbert
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Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Education Engineering Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mathematics Medicine & Pharmacology Public Health Social Sciences

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Optimizer Comparison In Convolutional Neural Network For Real Time Face Recognition Elbert, Elbert; Wulandari, Meirista; Fat, Joni
Engineering, MAthematics and Computer Science Journal (EMACS) Vol. 7 No. 1 (2025): EMACS
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/emacsjournal.v7i1.12058

Abstract

Face recognition is one of the computer vision technologies that's used in many industries. Face recognition always used in various sector that require the verification of an individual identity. There are many ways that can be used to develop face recognition, one of them is convolutional neural network. Convolutional neural network (CNN) is a deep learning neural network that is created specifically to process and analyze visual data, such as images and videos. CNN have the ability to learn many features from visual data, making them highly effective for tasks like face recognition. There are many factors that can affect CNN performance including the optimizers that are used in the neural network. Optimizers are the algorithm that adjust weights of the neural network to minimize error between the predicted output and actual target. This study used 10 different subjects for face recognition. In this study, the CNN model uses a training algorithm called backpropagation then will compare 3 different types of optimizers. The optimizers that used in this study are Adaptive Momentum (Adam), Root Mean Square Propagation (RMSProp), and Stochastic Gradient Descent (SGD). The results of the comparison will be shown in the form of performance metrics. The performance metrics include correct classification rate (CCR) as well as the confusion matrix of each model. CNN model with SGD optimizers has the highest CCR of 97.07%.
Comparative efficacy of solifenacin and tamsulosin in alleviating stent-related symptoms: A systematic review and meta-analysis Harahap, Dianita H.; Adhyatma, Kharisma P.; Elbert, Elbert; Khosasi, Felix; Warli, Muhammad H.
Narra J Vol. 5 No. 2 (2025): August 2025
Publisher : Narra Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52225/narra.v5i2.1683

Abstract

Ureteral stents, commonly used in urology, can cause side effects affecting patient quality of life. However, studies on managing lower urinary tract symptoms showed inconsistencies due to the use of various alpha-blockers and antimuscarinic drugs. The aim of this study was to evaluate the effectiveness of combining tamsulosin and solifenacin therapy compared to tamsulosin and solifenacin monotherapy for treating stent-related symptoms. Randomized controlled trials assessing tamsulosin, solifenacin, or their combination for stent-related symptoms treatment were identified through a comprehensive search of four databases (PubMed, Scopus, Web of Science, and Cochrane) from January 2018 to December 2023. Ureteral stent symptom questionnaire (USSQ), international prostate symptom score (IPSS), visual analog scale (VAS), and quality of life (QoL) were pooled for meta-analysis. Eleven studies with a total of 1,627 patients were included in the quantitative analysis. Solifenacin significantly improved urinary symptoms (MD: 15.31; 95%CI: 0.36–30.26; p=0.040) and reduced the IPSS (MD: -2.52; 95%CI: -3.68–-1.36; p<0.00001) compared to the control group. Tamsulosin reduced urinary symptoms on the USSQ (MD: 14.27; 95%CI: 8.68–19.86; p<0.00001), general health problems (MD: 4.53; 95%CI: 2.13­–6.94; p=0.0002), and IPSS (MD: -0.95; 95%CI: -1.86–-0.03; p<0.00001) compared to the control group. Solifenacin demonstrated a more significant reduction in the overall IPSS compared to tamsulosin (MD: -1.57; 95%CI: -2.85–-0.29; p=0.020). The combination of solifenacin and tamsulosin resulted in a significantly superior reduction in IPSS compared to solifenacin monotherapies (MD: -2.30; 95%CI: -3.23–-1.37; p<0.00001) and tamsulosin monotherapy (MD -3.17; 95%CI: -5.07­–-1.27; p=0.00001). No significant differences were found between tamsulosin and solifenacin in terms of QoL (MD: 0.12; 95%CI: -0.01–0.26; p=0.070) and VAS (MD: 0.25; 95%CI: -0.95–1.44; p=0.690). In conclusion, solifenacin was more effective than tamsulosin in reducing stent-related symptoms, and the combination of tamsulosin and solifenacin was superior to either monotherapy in alleviating stent-related symptoms.
IN VITRO EVALUATION OF PHYTOCHEMICAL COMPOUND FOR ANTIBACTERIAL ACTIVITY AT MURRAYA KOENIGII LEAF EXTRACT AGAINST THE GROWTH OF ESCHERICHIA COLI Elbert, Elbert; Adella, Cut Adeya; Faradina, Dwi; Lubis, Lokot Donna; Khosasi, Felix
JIMKI: Jurnal Ilmiah Mahasiswa Kedokteran Indonesia Vol 11 No 1 (2024): JIMKI: Jurnal Ilmiah Mahasiswa Kedokteran Indonesia Vol. 11.1 (2024)
Publisher : BAPIN-ISMKI (Badan Analisis Pengembangan Ilmiah Nasional - Ikatan Senat Mahasiswa Kedokteran Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53366/jimki.v11i1.767

Abstract

Introduction: In developing nations, like Indonesia, urinary tract infection, or UTI, is a frequent infection in women that results from the growth of microorganisms in the urinary tract. Escherichia coli is the most common cause. Antibiotics are the major form of treatment; however, misuse of these drugs has led to resistance. Innovation in potential medical plants is crucial. The curry leaf plant (Murraya koenigii) is one of them. Methods: The agar diffusion method was used to assess antibacterial activity. Murraya koenigii leaves were gathered from a garden in Tanjong Morawa. Escherichia coli ATCC 25922 is the type of bacteria that is used. Using 96% ethanol as the solvent, Murraya koenigii leaves were extracted using the maceration method. There were six treatments with concentrations of 6.25%, 12.5%, 25%, and 50%, positive control levofloxacin, and negative control DMSO. Results: The results of the phytochemical screening of the extracts showed that metabolites like flavonoids, tannins, and triterpenes had antibacterial effects. Data on the diameter of the inhibition zone were examined using the Kruskal-Wallis statistical test. The findings demonstrated that all treatments had statistically significant differences (p<0.05). Discussions: The presence of compounds such as flavonoids, tannins, and triterpenes in curry leaf extract has an antibacterial effect on Escherichia coli. This compound can prevent the creation of nucleic acids, inhibit cell membrane function, damage the permeability of bacterial cells, and deactivate bacterial enzymes. Conclusion: The ethanol extract of curry leaves has an inhibitory effect on the growth of Escherichia coli bacteria.
AKIBAT HUKUM PEMBATALAN AKTA HIBAH SAHAM OLEH PENGADILAN KARENA PERBUATAN MELAWAN HUKUM OLEH NOTARIS Elbert, Elbert; Sirait, Ningrum Natasya; Siregar, Mahmul
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 2 (2025): May 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i2.3124

Abstract

Abstract: Unlawful conduct by a notary refers to actions that violate the legal and ethical obligations inherent to the notarial profession. This includes the preparation of inaccurate documents, abuse of authority, of failure to adhere to professional ethics. This study aims to examine and analyze the validity requirements for share transfer through a grant and its legal implications for the implementastion of the General Meeting of Shareholders (GMS). This research employs a normative juridical method with a descriptive analytical approach, utilizing both statutory and cased-based approaches. Seceondary data is the main source, consisting of primary, secondary, and tertiary legal materials, collected through literature review and analyzed qualitatively. Keywords: Notary, Share Grant Deed, Unlawful Conduct Abstrak: Perbuatan melawan hukumun notaris adalah tindakan seorang notaris yang bertentangan dengan aturan atau prinsip yang harus ditaati dalam melaksanakan tugasnya. Hali ini mencakup pelanggaran terhadap kewajiban professional, seperti membuat dokumen yang tidak sesuai kenyataan, menyalahgunakan kewenangan, atau mengabaikan etika yang berlaku dalam profesinya. Penelitian ini bertujuan untuk mengetahui dan menganalisis syarat keabsahan pengalihan saham dengan hibah dan akibat hukumnya terhadap pelaksanaan RUPS. Penelitian ini menggunakan metode penelitian yuridis normative bersifat deskriptif analisis dengan pendekatan penrundang-undangan dan penedekatan kasus. Data sekunder menjadi data utama penelitian yang terdiri dari bahan hukum primer, sekunder, tersier yang dikumpulkan dengan studi kepustakaan dan dianalisis dengan analisis data kualitatif. Kata kunci: Notaris, Akta Hibah Saham, Perbuatan Melawan Hukum 
The influence of e-commerce and public relations on sales at PT. Indonesian Property Map Elbert, Elbert; Irwansyah Djali
Journal Arbitrase : Economy, Management and Accounting Vol. 2 No. 01 (2024): Journal Arbitrase : Economy, Management and Accounting, January 2024
Publisher : Paspama Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58471/arbitrase.v2i01.98

Abstract

PT Peta Property Indonesia is located on Jl. Sutrisno no. 54, Kotamatsum III, District. Medan City, Medan City, North Sumatra 20211, Indonesia. PT Peta Property Indonesia operates as a distributor selling housing. The company was unable to achieve its housing sales target and sales tended to decline in September and October 2022. Employees also interacted less with consumers via telephone. During this pandemic, consumers reduced demand for housing so that the level of housing sales was low. The purpose of this study was to test and analyze e-commerce and public relations on sales at PT. Indonesian Property Map. The type of data used by researchers in this study are: quantitative data originating from the results of respondents' answers to the questionnaire. The population is 242 customers of PT. Indonesian property map. The sample is 71 customers of PT. Indonesian property map. Multiple linear regression is a linear relationship between two or more independent variables (X) and the dependent variable (Y). The result of this research is that E-commerce has an effect on sales at PT. Indonesian Property Map. Public relations have an effect on sales at PT. Indonesian Property Map. E-commerce and public relations have an effect on sales at PT. Indonesian Property Map.
IN VITRO EVALUATION OF THE ANTIBACTERIAL POTENTIAL OF PSIDIUM GUAJAVA LEAF EXTRACT AGAINST ESCHERICHIA COLI: UNCOVERING THE ROLE OF PHYTOCHEMICAL COMPOUNDS. Khosasi, Felix; Adella, Cut Adeya; Faradina, Dwi; Lubis, Lokot Donna; Elbert, Elbert
JIMKI: Jurnal Ilmiah Mahasiswa Kedokteran Indonesia Vol 10 No 3 (2024): JIMKI: Jurnal Ilmiah Mahasiswa Kedokteran Indonesia Vol. 10.3 2024
Publisher : BAPIN-ISMKI (Badan Analisis Pengembangan Ilmiah Nasional - Ikatan Senat Mahasiswa Kedokteran Indonesia)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53366/jimki.v10i3.765

Abstract

Introduction: Urinary tract infections (UTIs) are prevalent among women and are commonly caused by Escherichia coli. Although antibiotics are effective, their misuse contributes to rising antimicrobial resistance. Psidium guajava L., a traditional Indonesian medicinal plant, has shown promise as an alternative antibacterial agent. This study aimed to evaluate the inhibitory effect of P. guajava leaf extract against E. coli. Methods: Antibacterial activity was assessed using the agar diffusion method with E. coli ATCC 25922. Ethanolic extracts were obtained by maceration. Six treatment groups, including various concentrations of levofloxacin and dimethyl sulfoxide (DMSO), were tested to compare antibacterial effects. Results: Phytochemical screening revealed the presence of flavonoids, alkaloids, and tannins—compounds known for their antimicrobial activity. Inhibition zone diameters were measured and analysed using the Kruskal–Wallis one-way ANOVA. Discussion: The guava leaf extract demonstrated inhibitory activity against E. coli, likely due to its bioactive compounds. These constituents may exert antibacterial effects through disruption of nucleic acid synthesis, interference with membrane integrity, inhibition of energy metabolism, and prevention of biofilm formation. Conclusion: The ethanolic extract of Psidium guajava leaves exhibits significant antibacterial activity against Escherichia coli.
Are Your Painkillers Putting Your Kidneys at Risk? A Meta-Analysis of Non-Aspirin NSAIDs and Kidney Cancer Elbert, Elbert; Khosasi, Felix
SCRIPTA SCORE Scientific Medical Journal Vol. 7 No. 2 (2026): SCRIPTA SCORE Scientific Medical Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/scripta.v7i2.21145

Abstract

Background: Kidney cancer cases are rising globally, with over 400,000 new cases reported annually. Nonsteroidal anti-inflammatory drugs (NSAIDs), widely used for pain relief, have been linked to an increased risk of kidney cancer, particularly renal cell carcinoma, with long-term use of non-aspirin NSAIDs. This association may be due to chronic kidney damage and prostaglandin-mediated DNA alterations, though the evidence remains inconsistent. Objectives: This meta-analysis reviews recent studies (2014–2024) to reassess the relationship between non-aspirin NSAIDs and kidney cancer Methods: This meta-analysis followed PRISMA 2020 guidelines, reviewing case-control and cohort studies (2014–2024) on non-aspirin NSAIDs and kidney cancer risk from PubMed, Scopus, Web of Science, and Cochrane. Data extraction, bias assessment (ROBINS-E), and quantitative analysis (Review Manager 5.4) were conducted, with significance set at p<0.05 and heterogeneity assessed via I². Results: Out of 190 studies, three met inclusion criteria (two case-control, one cohort). The risk of bias was low in two studies, and there were some concerns in one. Meta-analysis revealed an OR of 2.08 [95% CI: 0.77–5.65], indicating no significant association (p=0.15). High heterogeneity (I²=95%) suggests substantial variability due to differences in study populations, methodologies, or therapies. These findings highlight the need for further research to better understand the relationship between non-aspirin NSAID use and kidney cancer risk and to address the observed inconsistencies. Conclusion: This meta-analysis suggests a potential link between non-aspirin NSAIDs and kidney cancer, though results lacked statistical significance. Future research should address limitations and include larger, more homogeneous datasets for clearer conclusions. Keyword: Cancer risk, Kidney cancer, Non-aspirin NSAIDs, Renal cell carcinoma Latar Belakang : Kasus kanker ginjal meningkat secara global, dengan lebih dari 400.000 kasus baru dilaporkan setiap tahun. Obat nonsteroidal anti-inflammatory (NSAIDs), yang banyak digunakan untuk meredakan nyeri, telah dikaitkan dengan peningkatan risiko kanker ginjal, khususnya karsinoma sel ginjal, terutama pada penggunaan jangka panjang NSAID non-aspirin. Asosiasi ini mungkin disebabkan oleh kerusakan ginjal kronis dan perubahan DNA yang dimediasi prostaglandin, meskipun buktinya masih tidak konsisten. Namun, bukti yang ada masih tidak konsisten, dan klarifikasi hubungan ini penting secara klinis mengingat penggunaan NSAID non-aspirin yang luas dan sering kali berlangsung dalam jangka panjang. Objectives: Meta-analisis ini meninjau studi-studi terbaru (2014–2024) untuk menilai hubungan antara NSAID non-aspirin dan kanker ginjal. Methods: Meta-analisis ini mengikuti pedoman PRISMA 2020, meninjau studi case-control (2014–2024) mengenai risiko kanker ginjal terkait NSAID non-aspirin dari PubMed, Scopus, Web of Science, dan Cochrane. Ekstraksi data, penilaian bias (ROBINS-E), dan analisis kuantitatif (Review Manager 5.4) dilakukan, dengan batas signifikansi p<0.05 dan heterogenitas dinilai menggunakan I². Results: Dari 190 studi, dua studi memenuhi kriteria inklusi. Risiko bias rendah pada kedua studi. Meta-analisis menunjukkan OR 2.08 [95% CI: 0.77–5.65], yang mengindikasikan tidak ada asosiasi yang signifikan (p=0.15). Heterogenitas yang tinggi ditemukan (I² = 95%), yang kemungkinan mencerminkan perbedaan ukuran sampel yang mencolok antar studi case-control yang disertakan. Temuan ini menekankan perlunya penelitian lebih lanjut untuk memahami hubungan antara penggunaan NSAID non-aspirin dan risiko kanker ginjal serta untuk mengatasi inkonsistensi yang terlihat. Conclusion: Meta-analisis ini menunjukkan adanya potensi hubungan antara NSAID non-aspirin dan kanker ginjal, meskipun hasilnya tidak mencapai signifikansi statistik. Penelitian selanjutnya sebaiknya berfokus pada populasi yang lebih besar dan lebih homogen, dengan definisi durasi paparan NSAID non-aspirin yang terstandarisasi serta periode laten yang didefinisikan secara jelas antara penggunaan NSAID non-aspirin dan terjadinya kanker ginjal. Kata Kunci : Kanker ginjal, Karsinoma sel ginjal, Non-aspirin NSAIDs, Risiko kanker
Co-Authors Adhyatma, Kharisma P. CUT ADEYA ADELLA, CUT ADEYA Dwi Faradina Fat, Joni Harahap, Dianita H. Irwansyah Djali Khosasi, Felix Lokot Donna Lubis, Lokot Donna MAHMUL SIREGAR Meirista Wulandari, Meirista NINGRUM NATASYA SIRAIT Warli, Muhammad H.