International Journal of Sciences: Basic and Applied Research (IJSBAR)

Numerical Study of the Casson Non-Newtonian Fluid Flow over a Nonlinear Stretching Sheet

Gilder Cieza Altamirano, Muhammad Umar — Wed, 11 Dec 2019 08:52:14 +0000

In this paper, numerical study of Casson non-Newtonian fluid over a nonlinear stretching sheet using shooting method will be presented. The governing nonlinear partial differential equation is converted to an ordinary differential equation by using similarity transformations. This ordinary differential equation is handled numerically with the use of well-known shooting technique aided by Runge-Kutta method. For comparison of the results, MATLAB in-built solver BVP4C is used. The discussion of the results is provided in the forms of tables as well as graphically.

The Influence of Organizational Commitment on Budgetary Slack with Career Uncertainty as Moderating Variables (In the Context of Participative Budgets Preparation)

Wed, 11 Dec 2019 08:43:10 +0000

This study aims to obtain an empirical evidence about the ability of career uncertainty in moderating the effect of organizational commitment on budgetary slack. This research was conducted at the Regional Government Organizations in the Gianyar Regency where the research sample was echelon III and echelon IV officials. The sampling technique uses non probability sampling with a purposive sampling method. This study uses 163 research samples. The data analysis technique used is Moderated Regression Analysis (MRA). The test results provide empirical evidence that career uncertainty weakens the effect of organizational commitment on budgetary slack. This shows that the lower the organizational commitment of echelon III and echelon IV officials in the Gianyar Regency Government, the budgetary slack will be higher, especially in conditions of high career uncertainty. Based on this, the Gianyar Regency Government is expected to reduce the level of career uncertainty, so that officials involved in participatory budgeting can increase organizational commitment so that budgetary slack can be reduced.

Multivariate Random Forest to Identify the Importance Variable of 8 National Education Standards toward National Examination of Student High School in Indonesia

Ardiana Alifatus Sa’adah, Indahwati Indahwati, Budi Susetyo — Mon, 09 Dec 2019 09:24:55 +0000

Quality of human resources is one of the important aspect in terms of national development. One way that can be used to improve the quality of human resources in Indonesia is by improving the quality of the education. Therefore, the quality of education in Indonesia needs to be considered. The quality of education is the level of conformity between education implementers with the National Education Standards (SNP) in schools. One of the factors that is used to measure the level of success of SNP can be evaluated from National Examination (UN). Therefore it is necessary to do an analysis to find out the important factors of 8 SNP indicators which have a high influence on the UN results. The response variable is the average of national exam scores of the three main subjects tested. The response variables are numerical and multivariate and also have a high correlation between the scores of the three subjects. Based on these considerations, the Multivariate Random Forest (MRF) analysis method was applied. The results of the analysis that can be taken in this study are that the MRF method is able to identify the model stable even though it only uses training data with a cut off of 5%. The results of the analysis of importance variable from 8 variables of the national education standard toward variables of national examination scores, obtained 3 standards with the highest level of importance that are the competency standard of graduates (SKL), content standards (SI) and management standards (SPL).

Numerical Assessment of the Thermomechanical Properties of the NiTi Shape Memory Alloy

Belkacem Kada — Fri, 06 Dec 2019 21:50:34 +0000

The paper presents a numerical assessment and characterization of Shape Memory Alloys (SMAs) thermomechanical behavior using an internal variable approach-based constitutive law. A simulation study is conducted to reveal the influence of the key intrinsic properties such as shape memory effect, pseudoelastic effect, hysteresis loop, and non-constant material functions on the loading capacity and thermal actuation of SMAs. The effects of initial conditions, residual strains, and high temperatures on the behavior of SMAs are studied through several thermomechanical loading-unloading scenarios. The results give useful indications on the capability of SMA materials to fully recover large strains under thermal activation, to change their properties reversibly through phase transformation, and to serve as actuator systems for engineering control applications.

Students’ Perspective of Common European Framework of Reference in Kosovo

Eglantina Bilalli — Fri, 06 Dec 2019 21:37:20 +0000

Communication is the main goal people learn languages and for this reason many researchers and scholars have conducted research on teaching and learning second/foreign languages. Research has shown that the learning route is the same but it depends on the difficulty of the language and the type of learner as well as learners’ abilities for languages. The opportunities people have to visit different places came up the need of having a standard of knowledge toward specific language, in our case English language. Between years 1993-1996, the European Council came up with the idea of CEFR to make it easier and more useful way of utilizing the languages across Europe. The CEFR stands for Common European Framework Reference, which is a framework that is being used recently, around the world in order to have specific evidence of learners’ proficiency of a language. It precisely shows to what level of language learners belong. It is basically divided into six levels of foreign language proficiency; A1, A2, B1, B2, C1 and C2. Each level has its own references of language abilities. The way of making CEFR successful is by being aware of its usefulness, not only by teachers but by students too. Students and teachers should know their goal, and to achieve that they have to know their language level. Therefore, we want to focus on students’ information about CEFR in Britannica LC around Kosovo. The study is conducted in a private school of languages “Britannica LC” in Gjilan. They were 12 groups of students, including different ages and background. The study covered two groups for each level of languages set by CEFR; 2-A1, 2-A2, 2-B1, 2-B2, 2-C1, 2-C2. The research results showed that students were informed about levels of English depending of the book they were using and on their age. We could also figure it out that teachers were familiar with CEFR.