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All Journal CAUCHY: Jurnal Matematika Murni dan Aplikasi International Journal of Business, Economics, and Social Development International Journal of Global Operations Research International Journal of Quantitative Research and Modeling International Journal of Ethno-Sciences and Education Research International Journal of Mathematics, Statistics, and Computing International Journal of Linguistics, Communication, and Broadcasting
Suhaimi, Nurnisaa binti Abdullah
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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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Capital Structure, Liquidity, Profit Growth, and Financial Performance of Culinary MSMEs Using Local Raw Materials Pirdaus, Dede Irman; Suhaimi, Nurnisaa binti Abdullah; Sidiq, Fahmi
International Journal of Business, Economics, and Social Development Vol. 5 No. 2 (2024)
Publisher : Rescollacom (Research Collaborations Community)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46336/ijbesd.v5i2.653

Abstract

This study examines the capital structure, liquidity, profit growth, and financial performance of micro, small, and medium-sized enterprises (MSMEs) in the culinary sector based on local raw materials in Tasikmalaya City. A quantitative research approach with a descriptive-analytical method was employed, analyzing data from 33 sampled MSMEs. The findings reveal that the majority of MSMEs maintain a satisfactory capital structure, adequate liquidity, and positive profit growth. Furthermore, the financial performance of these MSMEs, particularly in terms of profitability, is commendable. The study concludes that there is a positive relationship between capital structure, liquidity, profit growth, and financial performance in these MSMEs, highlighting the importance of effective management in achieving business success.
Investment Portfolio Optimization of Mean-Entropic-VaR Model on the Top Ten Stocks from LQ45 in the Indonesian Capital Market Suhaimi, Nurnisaa binti Abdullah; Napitupulu, Herlina; Sukono, Sukono
CAUCHY: Jurnal Matematika Murni dan Aplikasi Vol 10, No 1 (2025): CAUCHY: JURNAL MATEMATIKA MURNI DAN APLIKASI
Publisher : Mathematics Department, Universitas Islam Negeri Maulana Malik Ibrahim Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/cauchy.v10i1.30794

Abstract

In an investment portfolio, investors certainly choose a portfolio according to their preferences for return and risk. The problem is the allocation of investment weights in forming a portfolio, if the risk is in the form of Entropic-Value-at-Risk (EVaR). The purpose of this study is to determine the allocation of investment weights that maximize returns and minimize portfolio risk. The method used in this study is through investment portfolio optimization in the form of Mean-EVaR. The stages carried out are selecting the ten best stocks in the LQ45 index, estimating and testing the suitability of the return distribution, determining expectations, variance and covariance between stock returns, and optimizing the allocation of investment portfolio weights using the Mean-EVaR model. Based on the results of the analysis, it was obtained that the optimal portfolio weight allocation is 0.01073, 0.23284, 0.04617, 0.08052, 0.00470, 0.09021, 0.14669, 0.00427, 0.22672 and 0.15715, to be allocated successively to the stocks ACES, BBRI, EXCEL, ITMG, PTBA, ADRO, BBTN, GGRM, KLBF and AKRA. In this optimal portfolio, the average portfolio return is obtained at 0.00055 with an EVaR risk of 0.01632. It is hoped that the results of this study can provide a significant contribution to investors in making investments, especially in the ten stocks analyzed.
The Impact of Smartphone Use on the Psychology of Young Children in Parungponteng District Ibrahim, Riza Andrian; Azahra, Astrid Sulistya; Suhaimi, Nurnisaa binti Abdullah
International Journal of Ethno-Sciences and Education Research Vol. 4 No. 1 (2024): 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.v4i1.566

Abstract

This research aims to analyze the impact of gadget use on the psychological development of elementary school-aged children at Cibuntu Elementary School, Cibungur Village, Parungponteng District. The research method used is a qualitative approach using observation, questionnaires and interviews as data collection techniques. The research results show that the use of gadgets has both positive and negative impacts on children's psychological development. Positive impacts include improved cognitive skills and access to information, while negative impacts include the risk of addiction and behavioral disorders. The role of parents and schools in supervising and directing gadget use is very important to minimize negative impacts. This research provides a comprehensive picture of the complexity of the interaction between technology and child development.
Analysis of Factors Inhibiting Students in Speaking English as a Foreign Language: Qualitative Study in Classes VIII and IX at Mts Darul Falah Cibungur Abdul Hali, Nurfadhlina; Yuningsih, Siti Hadiaty; Suhaimi, Nurnisaa binti Abdullah
International Journal of Ethno-Sciences and Education Research Vol. 4 No. 1 (2024): 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.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.
The Importance of Student Development in Selecting College Majors According to Their Interests and Talents at Man 5 Tasikmalaya Suhaimi, Nurnisaa binti Abdullah; Kalfin, Kalfin; Saputra, Moch Panji Agung
International Journal of Ethno-Sciences and Education Research Vol. 4 No. 2 (2024): 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.v4i2.619

Abstract

Choosing a college major is one of the important stages that students at the upper secondary level must go through. The decision to choose the right college major will greatly determine the future and success of students after graduation and they will not face difficulties during the study process. MAN 5 Tasikmalaya is one of the leading madrasah aliyah in Tasikmalaya which has experience in developing and guiding its students. As a school that has quite good quality, MAN 5 Tasikmalaya is required to provide maximum guidance to students in choosing college majors according to their interests and talents. It is hoped that MAN 5 Tasikmalaya students can discover their academic interests and talents from an early age so that they can make a decision on the right college major. appropriate. Good coaching will certainly be very beneficial for the future of students. This research aims to analyze the guidance for selecting college majors carried out at MAN 5 Tasikmalaya in helping students determine study programs that suit their interests and talents. The research results show that the coaching carried out by MAN 5 Tasikmalaya is quite effective in helping students determine their college major according to their interests and talents. However, the quality and quantity of coaching needs to continue to be improved by involving various internal and external parties at the school. The more optimal the coaching is, the more MAN 5 Tasikmalaya graduates will choose the right college major based on their interests and talents, so that they can achieve success in the future.
Application of Fish Waste Processing for Sustainable Livestock Feed Production A Community Engagement Study in Garut Regency Lianingsih, Nestia; Suhaimi, Nurnisaa binti Abdullah; Prabowo, Agung
International Journal of Ethno-Sciences and Education Research Vol. 4 No. 3 (2024): 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.v4i3.719

Abstract

This community engagement study aimed to develop an application for processing fish waste into animal feed based in an incubator system in Garut Regency. The program was conducted from May to November 2023 with the primary objective of transferring technology in waste processing and animal feed production to partner groups. Methods included socialization, technical and non-technical training, and direct mentoring in animal feed pellet production. Results showed a significant improvement in the knowledge and skills of the groups in producing fish waste pellets, reducing feed production costs, and enhancing the sustainability of local livestock businesses. Challenges encountered included initial production limitations and consumer trust in new products. With in-depth scientific approaches and sustained support, the program successfully created positive impacts on the environment and community economic welfare.
Education Revolution: Leveraging Technology to Improve Learning Quality by 2025 Saputra, Moch Panji Agung; Suhaimi, Nurnisaa binti Abdullah; Wahid, Alim Jaizul
International Journal of Ethno-Sciences and Education Research Vol. 5 No. 1 (2025): 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.v5i1.867

Abstract

The technological transformation in education in 2025 has had a significant impact on the way we teach and learn. The use of artificial intelligence (AI) and learning analytics enables a more personalized, interactive, and adaptive learning experience. AI helps provide rapid feedback and adapts learning materials to students’ needs, while learning analytics enables real-time monitoring of student progress. Despite the many benefits that can be gained, the main challenges faced are the digital divide between urban and rural areas, limited infrastructure, and issues of training for educators and protection of students’ personal data. Therefore, investment in infrastructure, training for educators, and development of data protection policies are crucial to ensure effective implementation of technology in education. Technology can play a major role in creating a more inclusive and adaptive education, provided that the existing challenges can be overcome.
Co-Authors Abdul Hali, Nurfadhlina Agung Prabowo Amal, Moh Alfi Azahra, Astrid Sulistya Azis, Chusnul Chatimah Benedicta, Hellena Halim, Nurfadhlina Abdul Haq, Fadiah Hasna Nadiatul Herlina Napitupulu Ibrahim, Riza Andrian Kalfin, Kalfin Lianingsih, Nestia Mugi Lestari, Mugi Muqtashida, Amalia Aura Pirdaus, Dede Irman Rahayu, Alpi fauziah Rini Cahyandari Rusyn, Volodymyr Salih, Yasir Saputra, Renda Sandi Sidiq, Fahmi Sukono Sukono Wahid, Alim Jaizul Yasmin, Arla Aglia Yuningsih, Siti Hadiaty