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This Author published in this journals
All Journal International Journal of Business, Economics, and Social Development International Journal of Quantitative Research and Modeling International Journal of Ethno-Sciences and Education Research
Yasir Salih
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Religion Humanities Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Transportation Other

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A COMPARATIVE STUDY OF SOME MODIFICATIONS OF CG METHODS UNDER EXACT LINE SEARCH Yasir Salih; Mustafa Mamat; Sukono Sukono
International Journal of Quantitative Research and Modeling Vol 1, No 1 (2020)
Publisher : Research Collaboration Community (RCC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.404 KB) | DOI: 10.46336/ijqrm.v1i1.2

Abstract

Conjugate Gradient (CG) method is a technique used in solving nonlinear unconstrained optimization problems. In this paper, we analysed the performance of two modifications and compared the results with the classical conjugate gradient methods of. These proposed methods possesse global convergence properties for general functions using exact line search. Numerical experiments show that the two modifications are more efficient for the test problems compared to classical CG coefficients.
Application of Exogenous Liquidity Risk Models to Analyze Single Assets Yasir Salih; Riaman Riaman; Komar Komar; Alit Kartiwa
International Journal of Business, Economics, and Social Development Vol 1, No 1 (2020)
Publisher : Research Collaboration Community (RCC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijbesd.v1i1.15

Abstract

Exogenous liquidity risk measurement is a measurement of liquidity risk that affects all market participants and is not affected by the actions of any other actors. Exogenous liquidity risk measurement is usually called the Cost of Liquidity (COL). The main problem is how the level of liquidity of one currency against other currencies and the effect of liquidity risk on VaR (Value at Risk) on a single asset. This thesis examines the importance of liquidity risk on a single asset. Combining basic VaR and liquidity risk will result in more effective calculations. The model used is to add the basic VaR value with the Cost of Liquidity (COL) or also called Liquidity VaR (L-VaR). The calculation results show the different effects of liquidity for each country's currency. Indonesian Rupiah (IDR) is the currency that has the highest liquidity component compared to the Japanese Yen (JPY) and the Thai Baht (THB). The lower the liquidity component of a currency, the currency is very liquid, and the Japanese Yen (JPY) is the most liquid currency compared to the Indonesian Rupiah (IDR) and the Thai Baht (THB).
A COMPARATIVE STUDY OF SOME MODIFICATIONS OF CG METHODS UNDER EXACT LINE SEARCH Yasir Salih; Mustafa Mamat; Sukono Sukono
International Journal of Quantitative Research and Modeling Vol. 1 No. 1 (2020): International Journal of Quantitative Research and Modeling
Publisher : Research Collaboration Community (RCC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijqrm.v1i1.2

Abstract

Conjugate Gradient (CG) method is a technique used in solving nonlinear unconstrained optimization problems. In this paper, we analysed the performance of two modifications and compared the results with the classical conjugate gradient methods of. These proposed methods possesse global convergence properties for general functions using exact line search. Numerical experiments show that the two modifications are more efficient for the test problems compared to classical CG coefficients.
Transforming Digital Pedagogy in Primary School Teacher Education (PGSD) to Enhance Learning Quality in the Post-Pandemic Era Riza Adrian Ibrahim; Alim Jaizul; Yasir Salih
International Journal of Ethno-Sciences and Education Research Vol. 6 No. 3 (2026): International Journal of Ethno-Sciences and Education Research (IJEER)
Publisher : Research Collaboration Community (Rescollacom)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijeer.v6i3.1292

Abstract

The transformation of digital pedagogy has become a crucial aspect of improving the quality of education, particularly in the post-pandemic era. This study aims to analyze the role of digital pedagogy in Primary School Teacher Education (PGSD), focusing on its potential to enhance teaching effectiveness, student engagement, and learning outcomes. The research employs a qualitative approach through a systematic literature review of scholarly articles and educational reports published between 2021 and 2026. The findings reveal that digital pedagogy supports interactive learning environments, promotes student-centered approaches, and strengthens teachers’ instructional competencies. However, challenges such as limited digital infrastructure, insufficient teacher readiness, and gaps in digital literacy persist. Furthermore, the shift toward hybrid and technology-based learning requires continuous adaptation from both educators and institutions. Therefore, integrating digital pedagogy into PGSD curricula is essential to prepare future teachers who are innovative, adaptive, and technologically competent. The study concludes that strategic policy support, infrastructure development, and ongoing professional training are key factors in optimizing digital pedagogy implementation in primary education.
Co-Authors Alim Jaizul Alit Kartiwa Komar Komar Mustafa Mamat Riaman Riaman Riza Adrian Ibrahim Sukono Sukono