Results 1 to 10 of about 689,076 (119)

Measuring Economic Uncertainty in Iran: Integrating Economic and Institutional Factors [PDF]

open access: yesIranian Journal of Economic Studies, 2023
Uncertainty is a controversial issue in the philosophy and methodology of economics. Since economic uncertainty is not directly observable, quantifying it is confronted with significant complexities. A common method in this context involves computing the
Tofigh Beigi   +3 more
doaj   +1 more source

λ-Symmetry and μ-Symmetry Reductions and Invariant Solutions of Four Nonlinear Differential Equations

open access: yesMathematics, 2020
On one hand, we construct λ-symmetries and their corresponding integrating factors and invariant solutions for two kinds of ordinary differential equations.
Yu-Shan Bai, Jian-Ting Pei, Wen-Xiu Ma
doaj   +1 more source

Point-of-interest recommendation algorithm integrating multiple impact factors

open access: yesJournal of Hebei University of Science and Technology, 2020
In order to solve the problem of data sparseness in the task of point-of-interest recommendation and make full use of the diverse information in the location-based social network to further improve the quality of personalized recommendation, a point-of ...
Huicong WU   +3 more
doaj   +1 more source

Numerical solution of first-order exact differential equations by the integrating factor method [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
A numerical algorithm for solving exact differential equations is proposed, based both on the efficient calculation of integrating factors and on a ''new'' numerical method for integrating functions.
Sevastianov, Leonid A.   +3 more
doaj   +1 more source

Explicit Solutions for the (2 + 1)-Dimensional Jaulent–Miodek Equation Using the Integrating Factors Method in an Unbounded Domain

open access: yesMathematical and Computational Applications, 2018
In this work, we prove that the integrating factors can be used as a reduction method. Analytical solutions of the Jaulent–Miodek (JM) equation are obtained using integrating factors as an extension of a recent work where, through hidden symmetries, the ...
Rahma Sadat, Magda Kassem
doaj   +1 more source

Integrating InSAR Observables and Multiple Geological Factors for Landslide Susceptibility Assessment

open access: yesApplied Sciences, 2021
Due to extreme weather, researchers are constantly putting their focus on prevention and mitigation for the impact of disasters in order to reduce the loss of life and property.
Yan-Ting Lin   +4 more
doaj   +1 more source

Polynomial Inverse Integrating Factors, First Integral and Non-Existence of Limit Cycles in the Plane for Quadratic Systems

open access: yesScience Journal of University of Zakho, 2017
The main purpose of this paper is to study the existence of polynomial inverse integrating factor and first integral, and non-existence of limit cycles for all systems. Furthermore, we consider some applications.
Ahmed M. Hussien
doaj   +1 more source

Integrating students’ perspectives about online learning: a hierarchy of factors

open access: yesInternational Journal of Educational Technology in Higher Education, 2020
This article reports on a large-scale (n = 987), exploratory factor analysis study incorporating various concepts identified in the literature as critical success factors for online learning from the students’ perspective, and then determines their ...
Montgomery Van Wart   +6 more
doaj   +1 more source

The role of integrating conjugative elements in Helicobacter pylori: a review

open access: yesJournal of Biomedical Science, 2018
The genome of Helicobacter pylori contains many putative genes, including a genetic region known as the Integrating Conjugative Elements of H. pylori type four secretion system (ICEHptfs).
Langgeng Agung Waskito   +2 more
doaj   +1 more source

Evolution of ungulate mating systems: Integrating social and environmental factors

open access: yesEcology and Evolution, 2020
Ungulates exhibit diverse mating systems that range from monogamous pair territories to highly polygynous leks. We review mating systems and behaviors across ungulates and offer a new approach synthesizing how interacting factors may shape those mating ...
R. Terry Bowyer   +4 more
doaj   +1 more source

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