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Analisis Metode Capital Asset Pricing and Arbitrage Pricing Theory terhadap Investasi Saham Selfiana Dewi; Cut Mutia; T. Aris Nouval; Muammar Khaddafi
Jurnal Rimba Riset Ilmu manajemen BisnisĀ danĀ Akuntansi Vol. 3 No. 3 (2025): Agustus : Riset Ilmu Manajemen Bisnis dan Akuntansi
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/rimba.v3i3.2048

Abstract

This study aims to compare the effectiveness of the Capital Asset Pricing Model (CAPM) and Arbitrage Pricing Theory (APT) in predicting stock returns through a literature review of 30 relevant studies. The findings show that CAPM, which relies solely on market risk, is more frequently proven accurate (18 studies) compared to APT (6 studies), while the remaining studies found no significant difference. Financial behavior also plays an important role in enhancing the accuracy of both models. Overall, CAPM is more effective in stable market conditions, while APT is more suitable in complex economic environments. Model selection should be based on market conditions and investor needs.
In vivo test of Litopenaeus vannamei infected by Vibrio using Moringa oleifera leaf extract Iko Imelda Arisa; Cut Mutia; Sri Agustina; Nurfadillah Nurfadillah; Sofyatuddin Karina
Depik Vol 10, No 2 (2021): August 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.2.17510

Abstract

This study aimed to determine the optimal concentration of Moringa oleifera leaf extract as an antibacterial agent on Litopenaeus vannamei larvae that are infected by Vibrio sp.. It was conducted in 15 March - 15 April 2019 at PT. Global Gain Superior Seeds, Pantai Cermin, North Sumatera. The research used a completely randomized design (CRD) method with five treatments and four replications. The shrimps infected by Vibrio sp. were immersed into M. oleifera leaf extract in various concentration of (A) 0 ppm, (B) 400 ppm, (C) 600 ppm, (D) 800 ppm, and (E) 1000 ppm for 15 minutes. The size of shrimp used was post-larvae 8 (length of 3.5-5 mm/ind). The best performance results of vannamei shrimps were obtained in treatment E (1000 ppm), namely length growth of 16.75 1.16 cm, weight growth of 0.92 0.89 g and survival rate of 917.87%.Keywords:Moringa oleiferaVibrio sp.Immersion
DEVELOPMENT AND QUALITY VALIDATION OF A WEB-BASED GOODS ORDERING SYSTEM FOR SMALL AND MEDIUM ENTERPRISES USING AGILE METHOD AND ISO/IEC 25010 Nabila Sasgita; Tiko Nurhaliza; Cut Mutia; Fauziah; Wilda Putri Sabila; Mahara Bengi; Pradipta, Rahman
Jurnal INSTEK (Informatika Sains dan Teknologi) Vol 11 No 1 (2026): APRIL
Publisher : Department of Informatics Engineering, Faculty of Science and Technology, Universitas Islam Negeri Alauddin, Makassar, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/instek.v11i1.65939

Abstract

Digital transformation in Small and Medium Enterprises (SMEs) requires integrated transaction management systems supported by measurable software quality standards. Manual goods ordering processes in SME operations frequently cause data inconsistencies, calculation errors, and reporting delays. This study aims to develop a web-based goods ordering information system for SME practitioners using a sprint-based Agile methodology and to conduct a quality validation based on the ISO/IEC 25010 model. The system was developed through four iterative sprint cycles over eight weeks with continuous stakeholder feedback. Software quality evaluation covered all eight ISO/IEC 25010 characteristics using measurable instruments. Functional testing across 40 scenarios achieved a 95% success rate. Usability was assessed using the System Usability Scale (SUS) with 30 respondents, yielding a score of 82.3 (Excellent category). Performance efficiency testing showed an average response time below two seconds under up to 50 concurrent users. This study is limited to testing within a controlled local server environment and portability evaluation restricted to two operating systems. The results conclude that integrating Agile development with ISO/IEC 25010 evaluation produces an information system that meets the technical specifications and operational requirements to support digital transaction management in the SME sector.