Journal of Mathematics and Statistics Studies
type: channel
description: Journal of Mathematics and Statistics Studies (ISSN: 2709-4200) is a double-blind peer-reviewed, open-access monthly journal published by Al-Kindi Center for Research and Development. The journal is led by expert international editorial board members who take an objective approach to peer review, ensuring each research paper is reviewed and evaluated on its own scholarly merits and research integrity. Publishing your work in the Journal of Mathematics and Statistics Studiesmeans you will receive prompt and reliable publishing and a global platform for your research to reach its full potential. The journal is published in both online and print versions.
publisher: Al-Kindi Center for Research and Development.
language: en
publication name: Journal of Mathematics and Statistics Studies
issn: 2709-4200
items: Topology in Physics Mathematical Foundations and Applications in Quantum Systems
items: Learning Styles and Mathematics Achievement of Grade 8 Students
items: Three rules are derived for numerically determining the values of double integrals utilizing the middle point and three-eighths criteria
items: Exponential- Odd Inverted Dagum Distribution: Properties and Difference Estimation Methods
items: Topological Features of Locally Compact Hypergroups
items: Analysis of the Value of Production of Milkfish
items: Atom-Bond Connectivity Index on a Graph of Finite Free Semilattices
items: Stability and Numerical Simulation of 2D Fractional Pseudo-Hyperbolic Partial Differential Equations
items: Jackson-Steklov Approximation Theory in Weighted Sobolev Spaces with Operations Research Applications
items: Some Topological Indices on a Graph of Finite Free Semilattices
items: Forecasting Theobroma Cacao Value of Production in the Philippines Using Time Series Modeling Approach
items: Line Graphs of Zero-Divisor Graphs of Finite Free Semilattices
items: Forecasting CO₂ Emissions Per Capita in the Philippines Using Time Series Analysis
items: Orthogonal Jordan Triple Higher Reverse Left (resp.Right) Centralizer on Semiprime T-Rings
items: Enhancing Students’ Self-Efficacy and Mathematics Achievement Through Competency Sub-Tasking
items: Strategies and Challenges in Implementing Differentiated Instruction Among High School Mathematics Teachers
items: Nonparametric Density Estimation in Survey Sampling
items: A Least Squares Hyperbolic Transformation to Moderate School Assessments
items: NEW MULTIPLE SOLUTIONS FOR SOME PERIODIC BOUNDARY VALUE PROBLEMS WITH ψ-LAPLACIAN
items: Influence of Administrative and Professional Support on Teaching Attitudes in Mathematics Instruction
items: Forecasting Philippine Rice Prices: Comparison of Traditional Time Series and Machine Learning Models
items: SIR Model and its Applications
items: Time Series Analysis to Evaluate the Impact of Foreign Direct Investment on Economic Growth in Sudan
items: Mathematical Modeling and Control of Drone Swarm Coordination Using PD Approach
items: Mathematical and AI-Blockchain Integrated Framework for Strengthening Cybersecurity in National Critical Infrastructure
items: A Comparative Statistical Analysis of Machine Learning Regression Models for Economic Indicator Forecasting
items: A Bazilevic function related to the class of meromorphic functions
items: Leveraging Artificial Intelligence to Recommend Personalized Learning Pathways: A Case Study on Secondary Education Students
items: Impact of Academic Stress on The Performance of The Grade 9 Students in Mathematics
items: Relationship Between Academic Stress and Math Scores in Grade 9 Students

Topology in Physics Mathematical Foundations and Applications in Quantum Systems
type: item
description: Topology has converted to be an essential framework in contemporary physics concentrating on international assets and unceasing distortions instead of outmoded geometry. It has altered our views of quantum structures and reduced material through notions like berry segments and Chern statistics. This mathematical tactic is vital for amplification topological soundproofing and superconductors, leading for progressive significant machineries. The study also grounds itself in well-established Mathematical .by drawing on homeomorphism and the classification of manifolds. It uses the Gauss Bonnet theory to prove how local curvature, and global topological invariants are deeply connected.
subject: Research Article
  topic: section
subject: Topology in physics, Homeomorphism, Classification of Manifolds, Gauss Bonnet Theorem, Berry phase, Topological Insulators
  topic: keywords
creator: Zainab Awad Kadhum
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0
date: 2026-07-13
publication date: 2026-07-13
starting page: 32
ending page: 36
doi: 10.32996/jmss.2026.7.5.5

Learning Styles and Mathematics Achievement of Grade 8 Students
type: item
description: This research aimed to determine the correlation between the Grade 8 students’ learning styles and academic achievement in factoring polynomials. It utilized a descriptive correlational method. The sample comprises 316 Grade 8 students, selected using simple random sampling. A survey questionnaire from the National Training of Grade 9 Core of Trainers of the K to 12 Enhanced Basic Education Curriculum and an achievement test were used to describe academic performance in Mathematics. The data were analyzed using frequency counts, percentages, and the chi-square test. The study revealed that most respondents were 12-13 years old and female. It also revealed that most parents had a high school education, and their combined family income was 10,000 or less. The respondents' academic performance was satisfactory. The relationship between the respondents' learning styles and academic achievement in mathematics was found to be non-significant. This supports students developing observable, concrete skills and knowledge without identifying their learning styles. The researchers recommend that the proposed intervention plan be used and monitored.
subject: Research Article
  topic: section
subject: Teaching Mathematics, Learning Styles, Mathematics Achievement, Descriptive-correlational, Cebu, Philippines
  topic: keywords
creator: Fatima C. Escultor
creator: Joan L. Alcoreza
creator: Abigail Y. Muñez
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0
date: 2026-07-04
publication date: 2026-07-04
starting page: 24
ending page: 31
doi: 10.32996/jmss.2026.7.5.4

Three rules are derived for numerically determining the values of double integrals utilizing the middle point and three-eighths criteria
type: item
description: By utilizing Romberg accelaration and the twonumericals rules( the middle point and the three-eghits) and their corresponding error formulas, we hope to derive three numerical rules that can be used to extract the values of continuous binary integrals during the integration period. Applying the three principles produced results that were accurate to fourteen or fiteen decimal places and had comparatively few subintervals on the integral's inner and outer dimensions inside the region of integration.
subject: Research Article
  topic: section
subject: : Middle point rule,
  topic: keywords
subject: three-eighths rule
  topic: keywords
subject: Romberg acceleration
  topic: keywords
subject: double integrals
  topic: keywords
creator: Maryam Zwain
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-06-25
publication date: 2026-06-25
starting page: 16
ending page: 23
doi: 10.32996/jmss.2026.7.5.3

Exponential- Odd Inverted Dagum Distribution: Properties and Difference Estimation Methods
type: item
description: An inverted distribution are significant statistical tools for analyzing real life data. In such many fields such as medical sciences, computer sciences, economics, and other real-life application. In this work, we utilize the odds-family and Inverted Dagum Distribution to construct a new model namely Exponential-Odd Inverted Dagum Distribution. A variant statistical property of this distribution. Types such as moment, moment generated mapping, hazard rate, and mean deviation are expressed. We presented various approaches, such as moment estimators, maximum likelihood estimators and Jackknife estimator, where Monte-Carlo simulations are used to determine the efficiency proposed estimator methods.
subject: Research Article
  topic: section
subject: Dagum Distribution, Inverted Dagum Distribution, Odds-Inverted Dagum Distribution, Method of Moment Estimator, Method of Maximum Likelihood Estimator.
  topic: keywords
creator: Intisar Elaiwi Ubaid
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-06-13
publication date: 2026-06-13
starting page: 05
ending page: 15
doi: 10.32996/jmss.2026.7.5.2

Topological Features of Locally Compact Hypergroups
type: item
description: In this paper, we give some sufficient conditions for that a continuous function to be an open mapping, where is a locally compact hypergroup. The obtained results are improvements of some recent facts on locally compact groups.
subject: Research Article
  topic: section
subject: Open functions, locally compact groups, locally compact hypergroups, convolution, morphisms
  topic: keywords
creator: Baraa Abdulhussein Bdaiwi Alhayyawi
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by-nc/4.0
date: 2026-06-06
publication date: 2026-06-06
starting page: 01
ending page: 04
doi: 10.32996/jmss.2026.7.5.1

Analysis of the Value of Production of Milkfish
type: item
description: Milkfish is important in the Philippine aquaculture, yet limited research has explored the economic value of its production and the factors that influence it. This study analyzes the trend in milkfish production value from 2008 to 2022 and examines its relationships with volume production, retail pricing, and export production. Using regression analysis, the results show a significant upward trend in production value over 15 years, with volume and retail price identified as primary drivers. Although export production showed a positive relationship in simple analysis, it was not significant in the combined model. The findings highlight that strengthening local production and retail strategies may be more effective than relying on exports to enhance industry value. Recommendations include targeted support for enhancing production efficiency, stabilizing pricing, and developing the domestic market to promote sustainable growth within the milkfish industry.
subject: Research Article
  topic: section
subject: export
  topic: keywords
subject: retail price
  topic: keywords
subject: trend
  topic: keywords
subject: volume production
  topic: keywords
subject: regression analysis
  topic: keywords
subject: Philippine fisheries
  topic: keywords
subject: aquaculture
  topic: keywords
creator: Rina Guingab
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-05-26
publication date: 2026-05-26
starting page: 25
ending page: 30
doi: 10.32996/jmss.2026.7.4.5

Atom-Bond Connectivity Index on a Graph of Finite Free Semilattices
type: item
description: Let SLn be the finite free semilattice on Xn={1,2,..,n} and Γn be the zero-divisor graph of SLn . In this paper, we find atom-bond connectivity index, Randic index and harmonic index of Γn for n≥3
subject: Research Article
  topic: section
subject: Finite free semilattice, ABC index, Randić index, Harmonic index
  topic: keywords
creator: Kemal Toker
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-04-13
publication date: 2026-04-13
starting page: 13
ending page: 17
doi: 10.32996/jmss.2026.7.4.3

Stability and Numerical Simulation of 2D Fractional Pseudo-Hyperbolic Partial Differential Equations
type: item
description: This study investigates the numerical solution and stability analysis of two-dimensional fractional pseudo-hyperbolic partial differential equations. Recent advancements in fractional calculus have demonstrated its efficacy in modelling complex physical phenomena, particularly through generalized derivatives that capture memory and non-local effects. The primary contribution of this work is the development and analysis of finite difference schemes for solving initial boundary value problems associated with two dimensional fractional pseudo-hyperbolic equations. We propose first-order accurate difference schemes that incorporate Caputo fractional derivatives with order 1 . Comprehensive error analysis is conducted through numerical simulations, and Von Neumann stability analysis establishes the conditional stability of the proposed numerical method. Experimental validation confirms the accuracy and reliability of the proposed schemes against exact solutions.
subject: Research Article
  topic: section
subject: Caputo time fractional derivative
  topic: keywords
subject: Finite difference scheme
  topic: keywords
subject: Pseudo hyperbolic partial differential equation
  topic: keywords
subject: Two-dimensional fractional PDE
  topic: keywords
subject: Von Neumann stability
  topic: keywords
creator: Fatih Ozbag
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-04-30
publication date: 2026-04-30
starting page: 18
ending page: 24
doi: 10.32996/jmss.2026.7.4.4

Jackson-Steklov Approximation Theory in Weighted Sobolev Spaces with Operations Research Applications
type: item
description: This paper studies the theoretical framework that brings together the Jackson-Steklov theory of approximation in weighted Sobolev spaces and optimization techniques used in Operations Research (OR). In this work, several new direct Jackson-type theorems are established, and a detailed analysis of Steklov eigenvalues in weighted spaces is carried out, along with error bounds and conditioning results for polynomial approximations. The results of this paper are intended for use in Operations Research, where stochastic programming with heavy-tailed distributions, PDE constrained optimization with irregular domains, and regularized inverse problems are considered. In this paper, key inequalities are established, which relate the approximation error with the modulus of continuity, as well as equivalence results for the K-functionals and the continuity module, and the role of Steklov eigenvalues in conditioning optimization problems discretized in weighted spaces. Numerical examples on standard problems in Operations Research support the results of this paper and show significant improvements in accuracy, conditioning, and efficiency over existing methods. This paper brings together abstract approximation theory and Operations Research optimization, which offers a firm foundation for the development of sophisticated computational methods in weighted function spaces.
subject: Research Article
  topic: section
subject: Weighted Sobolev spaces; operations research; Jackson theorem; Steklov eigenvalues; optimization; polynomial approximation
  topic: keywords
creator: Faris M. Alwan
creator: Mohammed A. Hilal
creator: Alaa Adnan Auad
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by-nc/4.0
date: 2025-09-29
publication date: 2025-09-29
starting page: 23
ending page: 32
doi: 10.32996/jmss.2025.6.4.3

Some Topological Indices on a Graph of Finite Free Semilattices
type: item
description: Let SLn be the finite free semilattice on Xn={1,2,...,n} and Γn be the zero-divisor graph of SLn. In this paper, we find the first Zagreb index, second Zagreb index, and Sombor index of Γn for n≥3
subject: Research Article
  topic: section
subject: Finite free semilattice, Zagreb index, Sombor index.
  topic: keywords
creator: Kemal Toker
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-04-01
publication date: 2026-04-01
starting page: 01
ending page: 05
doi: 10.32996/jmss.2026.7.4.1

Forecasting Theobroma Cacao Value of Production in the Philippines Using Time Series Modeling Approach
type: item
description: Cacao production contributes significantly to the Philippine agricultural sector, and having reliable forecasts of its value is necessary to guide policy decisions, investments, and industry strategies. This study aimed to analyze historical trends in the cacao value of production from 2000 to 2025 and forecast production value for 2027 by applying time series models. Using data from the Philippine Statistics Authority, several modeling techniques were tested, including linear, exponential, polynomial (quadratic to sextic), moving average, exponential smoothing, and autoregression. The models were then assessed using the coefficient of determination (R²) and standard error (SE) to determine which produced the most reliable forecasts. The quintic model emerged as the best fit since it provided the most accurate forecasted values and showed strong explanatory power. For 2027, the projected value is 5,070.934 million pesos. These findings give policymakers, agricultural agencies, and those in the cacao industry a reliable reference for anticipating production trends. Based on the results, the study recommends using the quintic model for planning, resource allocation, and program development to help sustain growth and improve the resilience of the cacao sector.
subject: Research Article
  topic: section
subject: agricultural forecasting; cacao production; mathematical modeling; nonlinear trends; time series analysis; Philippines
  topic: keywords
creator: Elaine May Magdaraog
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-04-09
publication date: 2026-04-09
starting page: 06
ending page: 12
doi: 10.32996/jmss.2026.7.4.2

Line Graphs of Zero-Divisor Graphs of Finite Free Semilattices
type: item
description: Let SLn be the finite free semilattice on xn={1,2,...,n} and Γn be the zero-divisor graph of SLn. Moreover, let L(Γn) be the line graph of Γn. In this paper, we find the cardinality of the vertex set of L(Γn), diameter, maximum degree, minimum degree, girth, clique number, chromatic number, and degrees of all vertices in L(Γn)for n≥3.
subject: Research Article
  topic: section
subject: Finite free semilattice, line graph, diameter, clique number
  topic: keywords
creator: Kemal Toker
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-03-18
publication date: 2026-03-18
starting page: 07
ending page: 10
doi: 10.32996/jmss.2026.7.3.2

Forecasting CO₂ Emissions Per Capita in the Philippines Using Time Series Analysis
type: item
description: Forecasting carbon dioxide (CO₂) emissions per capita in the Philippines is crucial for evaluating individual contributions and informing targeted policies. It also helps anticipate potential environmental and social impacts while facilitating data-driven decision-making. This study analyzes the trends in CO₂ emissions per capita in the Philippines from 1979 to 2024. Various time-series models were constructed to select the best-fit model and to predict per capita emissions for 2027. The data were obtained from the website of Our World in Data. The results revealed a generally upward trend throughout the study period, despite short-term fluctuations and temporary decreases. Moreover, the first-order autoregressive (AR(1)) model emerged as the best fit, projecting an increase in per capita emissions to approximately 1.689 tonnes per person by 2027. These findings provide insight into potential future emission trajectories at the individual level and underscore the need for targeted interventions to effectively manage per capita emissions.
subject: Research Article
  topic: section
subject: Carbon dioxide
  topic: keywords
subject: environmental issue
  topic: keywords
subject: individual contribution
  topic: keywords
subject: mathematical approach
  topic: keywords
subject: per capita emissions
  topic: keywords
subject: Philippines
  topic: keywords
creator: Nover Luke Saludares
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-03-18
publication date: 2026-03-18
starting page: 01
ending page: 06
doi: 10.32996/jmss.2026.7.3.1

Orthogonal Jordan Triple Higher Reverse Left (resp.Right) Centralizer on Semiprime T-Rings
type: item
description: The goal of this job offer the entrance of orthogonal Jordan triple higher reverse left (resp.right) centralizers a -ring Ň (mention -ring Ň by Ň ) & examine this concept
subject: Research Article
  topic: section
creator: Fawaz Ra'ad Jarullah
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/
date: 2026-02-22
publication date: 2026-02-22
starting page: 44
ending page: 48
doi: 10.32996/jmss.2026.7.2.4

Enhancing Students’ Self-Efficacy and Mathematics Achievement Through Competency Sub-Tasking
type: item
description: This study assessed Grade 11 students’ self-efficacy and Mathematics achievement when exposed to competency sub-tasking at two identified public high schools in Cebu during the 2022-2023 school year, as the basis for the learning enhancement plan. A descriptive-correlational method was employed, with 154 Grade 11 students chosen as respondents. The researchers used a survey questionnaire consisting of three parts to gather information. Part I provided information on students’ profiles. Part II questions focused on students' self-efficacy in learning mathematics when exposed to competency sub-tasking. Part III consists of individual students’ assessment scores. The data were analyzed using percentages, frequencies, means, standard deviations, and Pearson's r. Based on the findings, most students were 17 years old, most parents were high school graduates, and most students had low combined family monthly incomes. As revealed by the study, the student respondents' performance on the mathematics achievement test using the competency sub-tasking strategy was very satisfactory (at a proficient level). Regarding students’ self-efficacy, the respondents agreed, indicating that most of the time the performance indicators were true. It has been found that there is a significant relationship between students’ self-efficacy and academic performance when they are exposed to competency sub-tasking. It is recommended that the learning enhancement plan be implemented to enhance achievement in general mathematics competencies in modular-based instruction.
subject: Research Article
  topic: section
subject: Teaching Mathematics, students’ self-efficacy, competency sub-tasking performance, descriptive-correlation, mathematics, Cebu
  topic: keywords
creator: Benjie Boy P. Bancale
creator: Rio Mae C. Cañete
creator: Randy C. Mangubat
creator: Emerson D. Peteros
creator: Gengen G. Padillo
creator: Ramil P. Manguilimotan
creator: Raymond C. Espina
creator: Reylan G. Capuno
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0/
date: 2026-02-13
publication date: 2026-02-13
starting page: 01
ending page: 09
doi: 10.32996/jmss.2026.7.2.1

Strategies and Challenges in Implementing Differentiated Instruction Among High School Mathematics Teachers
type: item
description: Differentiated Instruction (DI) is widely recognized as an effective approach for addressing learner diversity in Mathematics classrooms; however, its consistent implementation remains challenging for many teachers. This study examined the extent to which high school Mathematics teachers practice differentiated instruction strategies and the challenges they encounter in implementing them. Quantitative findings revealed that teachers demonstrated a high extent of practice in differentiated instruction across content, process, product, and learning environment. Despite this, challenges related to time constraints, large class sizes, limited instructional resources, diverse learner needs, and workload demands were also reported. Statistical analysis indicated no significant relationship between the extent of differentiated instruction practice and the challenges encountered. The findings suggest that while teachers actively employ differentiated instruction strategies, systemic and contextual barriers continue to influence their classroom practices. These results highlight the need for teachers to employ various strategies to address these difficulties, including flexible grouping, formative assessment, peer collaboration, contextualized activities, and continuous monitoring, sustained instructional support and professional development to strengthen the effective implementation of differentiated instruction in high school Mathematics classrooms.
subject: Research Article
  topic: section
subject: Differentiated Instruction; Diverse Learners; Mathematics Education; Teaching Strategies
  topic: keywords
creator: Manilyn Gerebese
creator: Sheryl Irene E. Manaligod
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-02-22
publication date: 2026-02-22
starting page: 17
ending page: 43
doi: 10.32996/jmss.2026.7.2.3

Nonparametric Density Estimation in Survey Sampling
type: item
description: Nonparametric methods for estimating probability densities are popular because they provide flexible tools for exploratory analysis, model checking, and inference when little is known about the underlying distributional form. In the context of sample surveys where data arise from complex designs involving stratification, clustering, and unequal inclusion probabilities, naive application of standard nonparametric estimators can, however, produce biased and inconsistent results. This paper reviews foundations of nonparametric density estimation and use of kernel and local polynomial methods and discusses their adaptation to design-based and model-based survey frameworks. Practical implementation issues involving bandwidth selection, boundary correction, and computational considerations are made. Throughout, emphasis is placed on methods that respect survey design information, and on trade-offs between design-based validity and model-based efficiency. The paper concludes with recommendations for practice and directions for future research.
subject: Research Article
  topic: section
subject: nonparametric density estimation, kernel density estimator, survey sampling, design-based inference, weighted estimators, variance estimation, bandwidth selection.
  topic: keywords
creator: Reuben Lang'at
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-02-16
publication date: 2026-02-16
starting page: 10
ending page: 16
doi: 10.32996/jmss.2026.7.2.2

A Least Squares Hyperbolic Transformation to Moderate School Assessments
type: item
description: This research develops a new method to mathematically moderate school assessments to make them comparable across schools in a large-scale public examination system. In many systems the school assessment is partly used to determine the final mark in a course. A hyperbola was chosen for this method as it has two important features. First, if chosen from the second or fourth quadrants of the Cartesian plane it is always monotonic increasing. Second, it gives a curvilinear transformation which helps to overcome differences in skew between a school’s raw assessments and the school’s exam marks. If the skew difference is large it can disadvantage the top students in a linear moderation, giving them moderated assessments below their exam marks. A hyperbola is closely fitted to the moderation criterion (the sorted exam marks) using a least squares process. The moderation equation itself is simple, with three constants, but their calculation is more complex. However a central education authority should have the computing resources to calculate these constants for each school group. This new method provides another option for school systems to consider in a high-stakes large-scale public examinations environment.
subject: Research Article
  topic: section
subject: school assessments, moderation method, least squares, external examinations, high stakes, large scale
  topic: keywords
creator: Robert MacCann
rights: Copyright (c) 2026 Journal of Mathematics and Statistics Studies
date: 2026-02-03
publication date: 2026-02-03
starting page: 14
ending page: 24
doi: 10.32996/jmss.2026.7.1.3

NEW MULTIPLE SOLUTIONS FOR SOME PERIODIC BOUNDARY VALUE PROBLEMS WITH ψ-LAPLACIAN
type: item
description: We study the existence of multiple solutions of the quasilinear equation (ψ(u'(t)))'= f(t,u(t),u'(t)), t∈[0,T] submitted to periodic boundary conditions, where ψ:]-a,a[→R, with 0<a < +∞, is an increasing homeomorphism such that ψ(0)=0. Combining some sign conditions and lower and upper solutions method, we obtain existence of two or Three solutions.
subject: Research Article
  topic: section
subject: ψ- Laplacian; L^1-Carathéodory function; nonlinear Neumann-Steklov problem; Periodic problem; Lower and upper-solutions; sign conditions.
  topic: keywords
creator: Konan Charles Etienne Goli
creator: David Paul Tuo
creator: Franck Steincy Peala
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0
date: 2026-01-18
publication date: 2026-01-18
starting page: 09
ending page: 13
doi: 10.32996/jmss.2026.7.1.2

Influence of Administrative and Professional Support on Teaching Attitudes in Mathematics Instruction
type: item
description: This study investigated the influence of administrative and professional support on the teaching attitudes of junior high school mathematics teachers. The inquiry was undertaken in response to persistent challenges in mathematics performance and the varied implementation of assessment initiatives, particularly the Rapid Mathematics Assessment (RMA). Employing a descriptive-correlational research design, quantitative data were collected from junior high school mathematics teachers through a researcher-made questionnaire. Descriptive statistical tools, including frequency, percentage, weighted mean, and standard deviation, were used to determine the level of administrative support, professional support, and teaching attitudes. The Pearson Product-Moment Correlation Coefficient was utilized to examine relationships among the key variables. Results revealed that the level of administrative support and professional support was generally high, while teaching attitudes toward mathematics instruction were positive. Further analysis showed a significant relationship between administrative support and teaching attitudes, as well as between professional support and teaching attitudes. Teachers who reported receiving regular guidance, constructive feedback, and sufficient instructional resources demonstrated more favorable attitudes toward mathematics teaching. In addition, professional development activities that were relevant, sustained, and aligned with classroom realities were associated with increased confidence and openness to assessment innovations such as RMA. The study concludes that both administrative and professional support significantly influence the teaching attitudes of junior high school mathematics teachers. Strengthening leadership practices and professional learning systems is recommended to enhance instructional effectiveness and improve mathematics learning outcomes.
subject: Research Article
  topic: section
subject: Mathematics instruction, teacher attitudes, administrative support, professional development
  topic: keywords
creator: Kenneth Ruiz
rights: Copyright (c) 2026 https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by-nc/4.0
date: 2026-01-16
publication date: 2026-01-16
starting page: 01
ending page: 08
doi: 10.32996/jmss.2026.7.1.1

Forecasting Philippine Rice Prices: Comparison of Traditional Time Series and Machine Learning Models
type: item
description: The Philippine rice market is characterized by high volatility and a critical impact on national food security, necessitating the use of accurate forecasting tools for price monitoring and risk mitigation. The primary objective of this study was to determine the optimal forecasting methodology for the nominal wholesale price of regular-milled rice. The analysis utilized 430 monthly observations (January 1990 – October 2025), partitioned into an 80% training set (344 data points) and a 20% out-of-sample test set (86 data points). Eight time series models including traditional methods: Seasonal Naïve, ETS, ARIMA, TBATS, Theta, and Prophet, and machine learning algorithms: Random Forest and XGBoost were evaluated. Performance was assessed using Mean Absolute Error (MAE), Root Mean Squared Error (RMSE), and Mean Absolute Percentage Error (MAPE), supplemented by Ljung–Box and Lilliefors tests for residual diagnostics. Evaluation revealed that the Random Forest model achieved the best predictive accuracy, confirming the superior capability of non-linear models to capture the volatile patterns present in the wholesale price data. Residual diagnostics indicated a fundamental trade-off between structural adequacy and predictive accuracy. The final projection forecasts that wholesale prices will stabilize within the Php 34.00/kg to Php 35.50/kg range through 2027. The general price stability predicted for the next two years suggests policy focus may prioritize long-term supply-side improvements rather than short-term demand controls, unless external shocks occur.
subject: Research Article
  topic: section
subject: non-stationary
  topic: keywords
subject: ensemble methods
  topic: keywords
subject: food security
  topic: keywords
subject: price volatility
  topic: keywords
subject: time series forecasting
  topic: keywords
subject: random forest
  topic: keywords
creator: Christony Duyapat
rights: Copyright (c) 2025 Journal of Mathematics and Statistics Studies
date: 2025-12-21
publication date: 2025-12-21
starting page: 18
ending page: 28
doi: 10.32996/jmss.2025.6.6.3

SIR Model and its Applications
type: item
description: The Susceptible-Infected-Recovered (SIR) model, first introduced by Kermack and McKendrick in 1927, represents a fundamental framework for understanding epidemic dynamics and has evolved into one of the most influential mathematical models in epidemiology. This article examines the foundations of the SIR model, including its mathematical formulation, underlying assumptions, and parameter estimation techniques. The review also explores diverse applications of the SIR model across multiple domains, including traditional epidemiological studies, economic modeling, social network analysis, and emerging areas such as cybersecurity and marketing. Through systematic analysis of recent literature, this work demonstrates the model's adaptability and continued relevance in addressing contemporary challenges, from COVID-19 pandemic modeling to understanding information diffusion in digital networks. The findings highlight both the strengths and limitations of the SIR framework while identifying future research directions for model enhancement and application.
subject: Research Article
  topic: section
subject: SIR model, epidemiology, mathematical modeling, infection dynamics, parameter estimation, COVID-19, stochastic models
  topic: keywords
creator: Ghulam Sarwar Mubarez
creator: Mohammad Naser Mohsini
rights: Copyright (c) 2025 Journal of Mathematics and Statistics Studies
date: 2025-12-10
publication date: 2025-12-10
starting page: 07
ending page: 17
doi: 10.32996/jmss.2025.6.6.2

Time Series Analysis to Evaluate the Impact of Foreign Direct Investment on Economic Growth in Sudan
type: item
description: The study aimed to evaluate how foreign direct investment (FDI) impacts economic growth in Sudan. A standard model was designed to analyze the relationship between the study variables from 2000 to 2022. The primary problem of the study is whether Sudan can offer the required standards, incentives, and privileges to attract foreign investors. In the theoretical aspect, the study utilized a descriptive analytical approach, but in the practical aspect, it employed a statistical method grounded on econometric tools in the analysis, applying the Autoregressive Distributed Lag (ARDL) model. The relevant data were acquired from the Sudan Central Bureau of Statistics for the study period. The study hypothesized that there is a statistically significant correlation between FDI and economic growth in Sudan. The findings determined a statistically significant long-term association between FDI and economic growth. The study recommended enhancement of an environment favorable to both foreign and domestic investment.
subject: Research Article
  topic: section
subject: Economic growth, foreign direct investment, capital formation, GDP, trade openness.
  topic: keywords
creator: Hassan Ali Osman Fatur
creator: Sofian A. A. Saad
creator: Dhahawi Garri
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/
date: 2025-11-19
publication date: 2025-11-19
starting page: 11
ending page: 23
doi: 10.32996/jmss.2025.6.5.2

Mathematical Modeling and Control of Drone Swarm Coordination Using PD Approach
type: item
description: This research paper introduces a mathematical model and control framework for coordinating multiple drones (a swarm) using a Proportional–Derivative (PD) control approach grounded in graph theory. Each drone functions as an independent agent, communicating only with its nearby neighbors. This local interaction creates a decentralized and scalable system that eliminates the need for a central controller. The inter-drone connectivity and interactions are represented through the Laplacian matrix, while eigenvalue analysis helps in designing the control gains to ensure smooth and stable motion.The model is formulated using Newton’s equations of motion, expressed through differential equations that describe each drone’s dynamic behavior. The proposed approach is tested on a five-drone ring formation, demonstrating that the drones can maintain formation, avoid collisions, and reach the target position with stable convergence.
subject: Research Article
  topic: section
subject: Mathematical Modeling; Control of Drone Swarm Coordination; PD Approach
  topic: keywords
creator: Bhaavik Gupta
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/
date: 2025-11-15
publication date: 2025-11-15
starting page: 01
ending page: 10
doi: 10.32996/jmss.2025.6.5.1

Mathematical and AI-Blockchain Integrated Framework for Strengthening Cybersecurity in National Critical Infrastructure
type: item
description: This article examines the intersection between mathematical modeling, artificial intelligence (AI), and blockchain technology as a way of strengthening cybersecurity in national critical infrastructures (NCI). The increasing frequency and sophistication of cyber threats against vital infrastructures, such as electrical grids, healthcare information networks, and transportation infrastructures, creates the need to develop some innovative protective mechanisms. To solve these concerns, in the article the authors propose a hybrid framework that combines the AI-driven predictive analysis and the decentralized ledger capabilities of blockchain technology. Decentralized ledger technology (DLT) forms the backbone of secure and tamper-proof data management and machine learning algorithms are used to identify and predict emerging threats in real-time. By combining the immutability of the blockchain technology and the adaptive analytical capabilities of AI, this framework aims to improve the integrity of the data, maintain the privacy of it, and provide a fast-responding mechanism in the NCI environments. The paper outlines possible applications, lists the benefits that come with such applications, and addresses challenges inherent in the implementation of such an integrated system in order to provide a blueprint for future scholarly investigation and practical implementation.
subject: Research Article
  topic: section
subject: AI, Blockchain, Cybersecurity, Critical Infrastructure, Mathematical Framework, Decentralized Ledger Technology, Machine Learning
  topic: keywords
creator: Md Mahababul Alam Rony
creator: Md Shadman Soumik
creator: MAHINUR SAZIB SRISTY
rights: Copyright (c) 2023 https://creativecommons.org/licenses/by/4.0/
date: 2023-05-20
publication date: 2023-05-20
starting page: 92
ending page: 103
doi: 10.32996/jmss.2023.4.2.10

A Comparative Statistical Analysis of Machine Learning Regression Models for Economic Indicator Forecasting
type: item
description: Accurate forecasting of economic indicators is essential for informed policy-making and strategic financial planning. This study presents a comprehensive comparative statistical analysis of multiple machine learning regression models—including linear regression, ridge regression, lasso regression, support vector regression, and random forest regression—for predicting key economic indicators such as GDP growth, unemployment rate, and inflation. Using a simulated dataset of 1000 samples with multiple economic features, each model’s performance was evaluated using mean squared error (MSE), mean absolute error (MAE), root mean squared error (RMSE), and coefficient of determination ($R^2$). Results indicate that ensemble methods such as random forest provide superior predictive accuracy, while regularized models outperform ordinary linear regression. Visualizations of predicted versus actual values, residual analyses, and statistical comparisons are provided to support the findings. Implications for model selection and economic forecasting are discussed.
subject: Research Article
  topic: section
subject: Economic Forecasting
  topic: keywords
subject: Machine Learning Regression
  topic: keywords
subject: Statistical Analysis
  topic: keywords
creator: Chengqi He
rights: Copyright (c) 2025 Journal of Mathematics and Statistics Studies
date: 2025-11-25
publication date: 2025-11-25
starting page: 01
ending page: 06
doi: 10.32996/jmss.2025.6.6.1

A Bazilevic function related to the class of meromorphic functions
type: item
description: The goal of this article is to further geometric function theory by focusing on meromorphic functions and relying on the Bazilevic function, which represents the interactions of analytic functions. It focuses on presenting and investigating a differential operator for meromorphic functions. Using this operator, create meromorphic Bazilevic functions, a new subclass in the punctured unit disk This text also greatly expands knowledge and understanding of the meromorphic function to fall into this new subclass.
subject: Research Article
  topic: section
subject: Bazilevic functions, Meromorphic functions, Diﬀerential operator
  topic: keywords
creator: Mays S. Abdul Ameer
creator: Abdul Rahman S. Juma
creator: Hassan Hussien Ebrahim
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/
date: 2025-09-17
publication date: 2025-09-17
starting page: 17
ending page: 22
doi: 10.32996/

Leveraging Artificial Intelligence to Recommend Personalized Learning Pathways: A Case Study on Secondary Education Students
type: item
description: This study aims to develop an explainable artificial intelligence (XAI)–based educational recommendation system tailored for secondary school students. The system integrates classification and regression models to suggest personalized learning paths while estimating the confidence level of each recommendation. The dataset used was obtained from EdNet, comprising data for over 50,000 students including academic performance, educational level, interests, and learning pathways. The study followed an applied quantitative methodology involving data preprocessing, feature encoding, TF-IDF for text processing, model building, and the development of a user interface using Gradio. Four classification algorithms were evaluated: Decision Tree, Random Forest, KNN, and XGBoost. XGBoost outperformed others with an accuracy of 89%. For regression, LightGBM achieved the highest performance (R² = 0.9997, MAE = 0.000008). SHAP was utilized to interpret model outputs and provide visual explanations of the recommendation logic. The results demonstrated that incorporating explainability into educational recommender systems significantly increases users’ trust and engagement. The study recommends enriching the input data with behavioral indicators, testing the model in diverse learning contexts, and deploying the system as an interactive platform aligned with Saudi Vision 2030’s digital education goals.
subject: Research Article
  topic: section
subject: Recommender systems, Explainable AI, Machine Learning, Adaptive Learning, XGBoost, SHAP, EdNet
  topic: keywords
creator: Atheer Mohammed Abdullah Qassem
creator: Amira M. Idrees
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/
date: 2025-09-06
publication date: 2025-09-06
starting page: 01
ending page: 16
doi: 10.32996/jmss.2025.6.4.1

Impact of Academic Stress on The Performance of The Grade 9 Students in Mathematics
type: item
description: One of the most frequent stressors that students encounter is academic stress. The purpose of this study was to determine whether there is a significant relationship between the academic performance of grade 9 students at Campagao High School in Campagao, Bilar, Bohol, and their level of academic stress. The study employed the descriptive-correlational survey research design and the complete enumeration technique was used to obtain 63 respondents. The survey instrument was based on a standardized questionnaire and the data gathered were analyzed using the Pearson Product Moment Coefficient of Correlation at 0.05 alpha level. The major finding of the study indicated that there is a significant relationship between the level of academic stress and the level of mathematics performance. Furthermore, it was revealed that most of the respondents were 14 years old and were female. Majority of the respondents’ female parents were high school level while the highest educational attainment of the male parents was either high school level or elementary level with a combined family monthly income of P10 000 and below. Moreover, the level of academic stress experienced by the respondents in learning mathematics was moderate while the level of the students’ academic performance in math was developing. In line with the findings and conclusion of the study, the researcher recommends that the proposed math performance enhancement plan can be used and monitored.
subject: Research Article
  topic: section
subject: Academic Stress, Mathematics Performance, High School Education, Stress and Learning
  topic: keywords
creator: Hanna Mae Hoybia
creator: John De Vera
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/
date: 2025-09-05
publication date: 2025-09-05
starting page: 83
ending page: 88
doi: 10.32996/jmss.2025.6.3.8

Relationship Between Academic Stress and Math Scores in Grade 9 Students
type: item
description: This study investigated the relationship between academic stress and math scores in Grade 9 students. Additionally, it sought to examine the relationship between students' academic stress and their academic performance in the subject of Mathematics. It utilized the descriptive correlational method of research with the use standardized questionnaire. There were 210 respondents in the study and it used a simple random sampling technique. The respondents were Grade 9 students from Jagobiao National High School, one of the public high schools in the city of Mandaue. There were four statistical treatments employed in this study, namely, frequency count, simple percentage, weighted mean, and Pearson’s r. It was revealed that most of the respondents were 14 years old and were female. The level of academic stress experienced by the respondents in learning mathematics was moderate while the level of the students’ academic performance in math was approaching proficiency. The study found no statistically significant correlation between academic stress and math performance. However, the researcher suggests that the recommended approach for improving math performance should be implemented and monitored.
subject: Research Article
  topic: section
subject: Academic Stress, Mathematics Performance, High School Education, Stress and Learning
  topic: keywords
creator: Mary Michelle Silva
creator: John De Vera
rights: Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0/
date: 2025-09-05
publication date: 2025-09-05
starting page: 77
ending page: 82
doi: 10.32996/jmss.2025.6.3.7