Indexing

Abstract: The influence of many climatic variables such as NDVI, minimum and maximum humidity, rainfall, minimum and maximum temperature, and solar radiation make tea production volatile. The clustering of low and high volatility periods values makes determining a suitable GARCH and ARIMA model difficult. Climatic variables are risk measures useful in understanding tea production data. A proper understanding of variables to help monitor and forecast the volatility in tea production output is paramount in applied statistics. The existence of affirmative consent on the standard performance of GARCH(1,1) can be misguiding due to variation in data volatility. The nonlinear nature of tea production and climatic variables creates everlasting interest to scholars to model a forecast of future tea production based on the volatile climatic conditions. We use Box and Jenkins model to outline 63 combinations of ARMA(m,n)-GARCH(p,q) models in tables with m and n are either o, 1, or 2. We use AIC, BIC, and LogL criteria to select the best model. The results based on the rubric indicated that the ARMA(1,1)-GARCH(2,2) is the suitable model.

Keywords: ARMA, Climatic Variables, GARCH, Model fit, Tea Production, Volatility Effect.

Title: Establishing an ARMA-GARCH model fit for volatility effect of Climatic Variables on Tea Production in Tea Zones in Kenya

Author: Consolata A. Muganda, Sewe Stanley, Winnie Mokeira Onsongo

ISSN 2350-1022

International Journal of Recent Research in Mathematics Computer Science and Information Technology

Paper Publications

Abstract: Smartphones are transforming human lives at fast pace were by learning culture is not the same as a decade back, now student are reading electronic documents and the latest form of electronic books at the tips of their fingers anytime, anywhere. Smartphones has been one of the most widely used gadget for reading and learning culture amidst students of higher institution in Nigeria today. Hence, this research work is to find out the impacts of smartphones on the academic performance of students in Bauchi State higher institutions of learning. The study made use of questionnaires using the convenient sampling technique which was used to select a sample of 300 students across all levels and programs of study within the two selected higher institutions in Bauchi state. The data were analysed using percentage and frequency to answer the research questions. The findings show that the student have access to smartphones and that their exposure to these smartphones is to a very great extent and this contribute positively to their academic performance. Therefore, the finding recommends that Students should be admonished by teachers, colloquies and guardians on how they should regulate the use of these Smartphones within the school walls.  This is to create a balance between Smartphones and academic activities of students to avoid setbacks in their academic performance.

Keywords: apps, e-learning, education, institutions, smartphone, social-media, student.

Title: INFLUENECE OF SMARTPHONES ON THE ACADEMIC PERFORMANCE OF STUDENT IN BAUCHI STATE HIGHER INSTITUTIONS OF LEARNING

Author: Aminu Saeed Haruna, Alhaji Adamu Abdullahi, Bappale Babayo, Mohammed Bala Mohammed

ISSN 2350-1022

International Journal of Recent Research in Mathematics Computer Science and Information Technology

Paper Publications

Abstract: The dynamics of coronavirus (COVID-19) infection with social distance as an intervention are studied using a mathematical model based on a system of ordinary differential equations. The next generation matrix technique is used to calculate the fundamental reproduction number. The existence of the model’s steady states is established, and the model’s stability is investigated. The disease free (DFE) and endemic equilibrium (EE) points are found to be locally asymptotically stable using the Routh-Hurwitz criterion and center manifold theory, respectively. The model’s numerical simulation revealed that social distance has a significant impact in COVID-19 transmission decrease.

Keywords: Coronavirus(COVID-19), Vaccination, Reproduction number, Stability. 

Title: MATHEMATICAL MODELING OF COVID-19 TRANSMISSION DYNAMICS WITH SOCIAL DISTANCE AS AN INTERVENTION

Author: Halson O. Nyaberi, Charles M. Wachira

ISSN 2350-1022

International Journal of Recent Research in Mathematics Computer Science and Information Technology

Paper Publications

Abstract: Fermat’s last theorem has been a discussion for a very long time. The author of this paper had come up with another conjecture which could be further evaluated, the extension of Fermat’s or extended Fermat’s. Will this be an easy one, equally hard or harder than the Fermat’s. This paper also prove Beal’s Conjecture using gap analysis or difference analysis.

Keywords: Difference Analysis or Gap Analysis, Fermat’s Conjecture, Fermat’s Last Theorem, Simple Solution, Table Analysis.

Title: Extended Fermat’s Last Theorem or Fortunado’s Second Conjecture or Theorem and Solution to Beal Conjecture Using Gap Analysis or Difference Analysis

Author: Ismael Tabuñar Fortunado

ISSN 2350-1022

International Journal of Recent Research in Mathematics Computer Science and Information Technology

Paper Publications