Thu Dau Mot University Journal of Science


Natural Science 1.0

AN OVERVIEW OF THE YELLOW-CHECKED GIBBON  (NOMASCUS GABRIELLAE THOMAS, 1909)

AN OVERVIEW OF THE YELLOW-CHECKED GIBBON (NOMASCUS GABRIELLAE THOMAS, 1909)

By Nguyen Thi Thu Hien, Nguyen Thanh Binh
Primates play a huge role in biomedical research. They are raised for medical research and to test new vaccines before being used for humans. The yellow-cheeked gibbon (Nomascus gabriellae) is an endemic mammal of Vietnam, included in the Vietnam Red Book 2007, and described in the IUCN Red Book 2009. ...
NOTE ON A UNIQUENESS RESULT FOR THE NONLINEAR DIFFERENTIAL EQUATION WITH TIME-SINGULAR COEFFICENTS

NOTE ON A UNIQUENESS RESULT FOR THE NONLINEAR DIFFERENTIAL EQUATION WITH TIME-SINGULAR COEFFICENTS

By Nguyen Minh Dien
In this note, we prove a unique result for a nonlinear differential equation concerning a Nagumo-type source. An example is given to illustrate the theoretical result.
USING THE CUBIC SPLINE INTERPOLATION METHOD  TO APPROXIMATE SOME REAL DATA

USING THE CUBIC SPLINE INTERPOLATION METHOD TO APPROXIMATE SOME REAL DATA

By Le Thi Thu
In engineering and science problems, the data being considered are often known in the form of sets of discrete points, not as a continuous function. In applications, the values of the discrete data at specific points may be required to estimate. To solve these problems, a common mathematical approach is ...
LACONICALLY REVIEWED CONCEPTS PERTAINING THE ROTAVIRUS: A SEVERE DIARRHEA CAUSING MICROBE

LACONICALLY REVIEWED CONCEPTS PERTAINING THE ROTAVIRUS: A SEVERE DIARRHEA CAUSING MICROBE

By Salisu Garba, Malami Dikko, Barga Isiyaka Bala, Zayyanu Malami, Yusuf Sarkingobir
Nigeria and developing countries are suffering from infectious diseases due to a mixture of determinants. Parable, rotavirus is a major concern that causes a lot of deaths and hospitalization among children under five of age. Therefore, it is imperative to have more understanding of the rotavirus. A literature review to ...
Understanding the importance of ISBN codes and creating a 13-Digit ISBN check digit

Understanding the importance of ISBN codes and creating a 13-Digit ISBN check digit

By Dang Thi Diem, Luu Thi Hiep
This article provides a comprehensive review of ISBN codes, shedding light on their significance and outlining the process of generating a 13-digit ISBN check digit. ISBN codes (International Standard Book Number) play a crucial role in identifying and cataloging books, serving as a unique identifier for each publication.
Research for Oil-Absorbing carpets using hair materials

Research for Oil-Absorbing carpets using hair materials

By Nguyen Thi Mai Thao, Bui Pham Phuong Thanh, Tran Thi Khanh Hoa, Nguyen Thi Xuan Hanh
The issue of marine pollution in general, as well as pollution brought on by oil spills into the sea, in rivers and lakes, or wastewater from factories, businesses, mechanical repair shops, gas stations, universities, and auto repair shops, is one that the world is currently facing, particularly since when it ...
High-order iterative scheme for Kirchhoff-type wave equation with the source containing three unknown values

High-order iterative scheme for Kirchhoff-type wave equation with the source containing three unknown values

By Le Thi Mai Thanh, Pham Nguyen Nhat Khanh
In this paper, a high-order iterative scheme is established in order to get a convergent
sequence at a rate of order N, (N ≥ 2) to a local unique weak solution of a nonlinear
Kirchhoff-type wave equation associated with Robin conditions.
A fractional model of enzymatic competitive substrate inhibition with Ping-Pong mechanism

A fractional model of enzymatic competitive substrate inhibition with Ping-Pong mechanism

By Nguyen Tuan Dat, Mai Quang Vinh
Enzymes are biodegradable catalysts naturally present in living organisms. Enzymes
can accelerate biochemical reactions by reducing the activation energy, and they are
not consumed during reaction processes. Numerous applications of enzymes have been
developed in biotechnology, industry, medicine, pharmaceuticals, food processing, biofuels,
and so on. In this study, we develop a mathematical model describing ...
Identifying the source for Fractional diffusion equations with Random Gaussian white noise

Identifying the source for Fractional diffusion equations with Random Gaussian white noise

By Ngo Ngoc Hung, Tran Thanh Binh, Nguyen Duc Phuong
In this work, we study the problem of finding the source function of the inhomogeneous
diffusion equations with conformable derivative c∂α
t u−Δu = f(x), 0 < α < 1, associate
with random noisy input data. This problem is ill-posed in the sense of Hadamard. In
order to regulate the instablity of the solution, ...
Inverse source problem for Sobolev equation with observed data in Lb spaces

Inverse source problem for Sobolev equation with observed data in Lb spaces

By Le Dinh Long, Danh Hua Quoc Nam, Vo Ngoc Minh, Bui Dai Nghia
In this paper, we are interested in the problem of determining the source function forthe
Sobolev equation with fractional Laplacian. This problem is non-well-posed. We show theerror
estimate between the exact solution and the regularized solution with the observed data in Lb
spaces.
Some applications of logarithms in real life

Some applications of logarithms in real life

By Nguyen Thi Khanh Hoa
In this paper, we restate some applications of logarithms in Richter scale, pH scale and
sound intensity level (Decibel scale).
Asymptotic expansion associated with the Kirchhoff-Carrier- Love equation

Asymptotic expansion associated with the Kirchhoff-Carrier- Love equation

By Vo Thi Tuyet Mai, Le Huu Ky Son, Tran Thi Kim Thoa
In this paper, we consider the Dirichlet boundary problem for a nonlinear wave equation
of Kirchhoff-Carrier-Love type as follow


utt − B
?
∥u(t)∥2 , ∥ux(t)∥2
(uxx + uxxtt)
= f(x, t, u, ux, ut, uxt) +
Xp
i=1
εifi(x, t, u, ux, ut, uxt)
for 0 < x < 1, 0 < t < T,
u(0, t) = u(1, t) ...