Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
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This Author published in this journals
All Journal International Journal of Research in Community Services International Journal of Ethno-Sciences and Education Research
Nurfadhlina Abdul Hali
Scopus ID: 55898510900 Universiti Sains Islam Malaysia (USIM),
Religion Humanities Economics, Econometrics & Finance Education Energy Engineering Languange, Linguistic, Communication & Media Mathematics Social Sciences Transportation Other

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Markowitz Model Investment Portfolio Optimization: a Review Theory Nurfadhlina Abdul Hali; Ari Yuliati
International Journal of Research in Community Services Vol 1, No 3 (2020)
Publisher : Research Collaboration Community (RCC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijrcs.v1i3.104

Abstract

In the face of investment risk, investors generally diversify and form an investment portfolio consisting of several assets. The problem is the fiery proportion of funds that must be allocated to each asset in the formation of investment portfolios. This paper aims to study the optimization of the Markowitz investment portfolio. In this study, the Markowitz model discussed is that which considers risk tolerance. Optimization is done by using the Lagrangean Multiplier method. From the study, an equation is obtained to determine the proportion (weight) of fund allocation for each asset in the formation of investment portfolios. So by using these equations, the determination of investment portfolio weights can be determined by capital.
Analysis of Factors Inhibiting Students in Speaking English as a Foreign Language: Qualitative Study in Classes VIII and IX at Mts Darul Falah Cibungur Nurfadhlina Abdul Hali; Siti Hadiaty Yuningsih; Nurnisaa binti Abdullah Suhaimi
International Journal of Ethno-Sciences and Education Research Vol 4, No 1 (2024)
Publisher : Research Collaboration Community (RCC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijeer.v4i1.571

Abstract

This research investigates the factors that hinder students from speaking English as a foreign language in the classroom. Through qualitative research methods involving students and teachers, the findings show that there are two main factors that influence students' speaking abilities, namely affective factors and cognitive factors. Affective factors include eleven subfactors such as shyness, nervousness, and lack of self-confidence, while cognitive factors involve problems with grammar, pronunciation, and vocabulary. In addition, the influence of teachers and peers also has a significant role in overcoming or exacerbating these factors. This research has implications for designing more effective speaking learning and a supportive environment for students in overcoming speaking barriers.
Co-Authors Ari Yuliati Nurnisaa binti Abdullah Suhaimi Yuningsih, Siti Hadiaty