W. Stanly and R. Vasanthakumari
This study aims to focus on the effect of hall currents on the thermal stability of a couple-stress fluid with a uniform horizontal magnetic field.
Abstract
Purpose
This study aims to focus on the effect of hall currents on the thermal stability of a couple-stress fluid with a uniform horizontal magnetic field.
Design/methodology/approach
The thermal perturbation method is used for the analytical solution. The analysis is administered within the framework of linear stability theory and normal mode technique on the convection for a fluid layer contained between two boundaries for which an exact solution is obtained.
Findings
For the case of stationary convection, a dispersion relation governing the effect of hall currents magnetic field and couple stress are derived. Results from the current study concluded that magnetic field has stabilizing effect whereas hall currents are found to have a destabilizing effect on the system. Couple stress, however, has a dual character in contrast to its stabilizing effect in the absence of hall currents. The Oscillatory modes are introduced due to the presence of a magnetic field in the system. Graphs are plotted by giving numerical values to the parameters to depict the stability characteristics in each case.
Originality/value
This research paper is new and original.
Details
Keywords
W. Stanly and R. Vasanthakumari
The purpose of this paper is used to study the combined effect of solute gradient and magnetic field on dusty couple-stress fluid in the presence of rotation through a porous…
Abstract
Purpose
The purpose of this paper is used to study the combined effect of solute gradient and magnetic field on dusty couple-stress fluid in the presence of rotation through a porous medium.
Design/methodology/approach
The perturbation technique (experimental method) is applied in this study.
Findings
For the case of stationary convection, solute gradient and rotation have stabilizing effect, whereas destabilizing effect is found in dust particles in the system. Couple stress and medium permeability both have dual character to its stabilizing effect in the absence of magnetic field and rotation. Magnetic field succeeded in establishing a stabilizing effect in the absence of rotation.
Originality/value
The results are discussed by allowing one variable to vary and keeping other variables constant, as well as by drawing graphs.
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Shawn Stanly Anthony Dass, Siti Noor Shafiqah Badrolhisham and Febryani Fallensia Lusiana Wadipalapa
Rural indigenous schools in Malaysia can be far from equipped with facilities and conducive learning environments, especially in schools serving a large and diverse community. SK…
Abstract
Rural indigenous schools in Malaysia can be far from equipped with facilities and conducive learning environments, especially in schools serving a large and diverse community. SK RPS (Rancangan Penempatan Semula/Resettlement Programme) Banun is an all-indigenous school located in the interiors of Gerik, Perak in Malaysia. Being the only school in the vicinity of an Orang Asli settlement comprising 18 villages of the Je hai and Temiar tribes, this public school is said to be a one stop hub for the community. Despite the school's existence, there are several challenges which hinders children of the Orang Asli community to attain a quality education or in some cases to even go to school. This paper is written based on the lived experiences of three teachers from mid-2022 to mid-2023 and amplifies the day-to-day challenges of the school and its community. The paper also discusses the initiatives implemented to tackle some of the challenges, highlighting key successes and suggestions to improve some areas particularly in enhancing and reimagining pedagogical approaches as well as learning environments in Orang Asli schools in Malaysia.
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Sparked by the September 11 event, ethnic and religious diversity in the American culture has opened a new dialogue about tolerance to foreign cultures and religions. Using…
Abstract
Sparked by the September 11 event, ethnic and religious diversity in the American culture has opened a new dialogue about tolerance to foreign cultures and religions. Using Burke’s views about morality and religious tolerance, this paper argues how ethical guidelines of public administrators ought to be sought from a universal moral law derived from natural principles and constitutional values of the regime. The argument focuses on Burkean prudence as a practical application of moral law and a guide for public administrators in a diverse global environment. Furthermore, it argues civil law to be inadequate in situations where the majority favors a particular opinion against a minority population. By acknowledging a universal moral law, public administrators can play a dual role as individuals building human relations in a diverse culture, and as public servants upholding Constitutional values to preserve the integrity of public institutions
Liya Wang, Rong Cong, Shuxiang Wang, Sitan Li and Ya Wang
The research aims to explore the influence mechanism of peer feedback and users' knowledge contribution behavior. This study draws on the social identity theory and considers…
Abstract
Purpose
The research aims to explore the influence mechanism of peer feedback and users' knowledge contribution behavior. This study draws on the social identity theory and considers social identity as a mediating factor into the research framework.
Design/methodology/approach
This paper collected users' activity data of 142,191 ideas submitted by 76,647 users from the MIUI community between October 2010 and May 2018 via Python software, and data were processed using Stata 16.0.
Findings
The results indicate that knowledge feedback and social feedback positively influence users' knowledge contribution (quantity and quality), respectively. User's cognitive identity positively mediates the relationship between peer feedback and knowledge contribution behavior, affective identity positively mediates the relationship between peer feedback and knowledge contribution behavior, while evaluative identity positively mediates the relationship between peer feedback and knowledge contribution quality, but there is no mediating effect between peer feedback and knowledge contribution quantity.
Originality/value
This study advances knowledge management by highlighting peer feedback on online innovation communities. By demonstrating the significant mediating effect of social identity, this study empirically clarifies the relationships of peer feedback (knowledge feedback and social feedback) to specific dimensions of knowledge contribution, thereby providing managerial guidance to the online innovation community on incentivizing and managing user interaction to foster the innovation development of firms.
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The following bibliography focuses mainly on programs which can run on IBM microcomputers and compatibles under the operating system PC DOS/MS DOS, and which can be used in online…
Abstract
The following bibliography focuses mainly on programs which can run on IBM microcomputers and compatibles under the operating system PC DOS/MS DOS, and which can be used in online information and documentation work. They fall into the following categories:
Tom Schultheiss, Lorraine Hartline, Jean Mandeberg, Pam Petrich and Sue Stern
The following classified, annotated list of titles is intended to provide reference librarians with a current checklist of new reference books, and is designed to supplement the…
Abstract
The following classified, annotated list of titles is intended to provide reference librarians with a current checklist of new reference books, and is designed to supplement the RSR review column, “Recent Reference Books,” by Frances Neel Cheney. “Reference Books in Print” includes all additional books received prior to the inclusion deadline established for this issue. Appearance in this column does not preclude a later review in RSR. Publishers are urged to send a copy of all new reference books directly to RSR as soon as published, for immediate listing in “Reference Books in Print.” Reference books with imprints older than two years will not be included (with the exception of current reprints or older books newly acquired for distribution by another publisher). The column shall also occasionally include library science or other library related publications of other than a reference character.
This study is to investigate relationships between business performance of overseas subsidiary and market orientation, firm specific factors, competitive strategy, market specific…
Abstract
This study is to investigate relationships between business performance of overseas subsidiary and market orientation, firm specific factors, competitive strategy, market specific factors. Author also tests whether market environment might affect market orientation – performance relationship. As the results of research, market orientation affects performance of overseas subsidiary larger than any other variables and market environment factors might moderate relationship between market orientation and performance.
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This paper investigates the factors behind wage differentials in the largest 100 Saudi Arabian companies. In addition to these companies’ data that were published in 1999, a…
Abstract
This paper investigates the factors behind wage differentials in the largest 100 Saudi Arabian companies. In addition to these companies’ data that were published in 1999, a questionnaire was distributed to a random sample of the employees in these companies to collect supplementary personal data. Stepwise regression was then used to examine the relationship between wages (on the logarithmic scale) and several independents variables measuring various characteristics of both the companies and the workers. It was found that the worker’s education and experience and the company’s sales, capital, assets, location and legal framework were among the most important variables affecting wages.
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Although the challenges associated with big data are increasing, the question of the most suitable big data analytics (BDA) platform in libraries is always significant. The…
Abstract
Purpose
Although the challenges associated with big data are increasing, the question of the most suitable big data analytics (BDA) platform in libraries is always significant. The purpose of this study is to propose a solution to this problem.
Design/methodology/approach
The current study identifies relevant literature and provides a review of big data adoption in libraries. It also presents a step-by-step guide for the development of a BDA platform using the Apache Hadoop Ecosystem. To test the system, an analysis of library big data using Apache Pig, which is a tool from the Apache Hadoop Ecosystem, was performed. It establishes the effectiveness of Apache Hadoop Ecosystem as a powerful BDA solution in libraries.
Findings
It can be inferred from the literature that libraries and librarians have not taken the possibility of big data services in libraries very seriously. Also, the literature suggests that there is no significant effort made to establish any BDA architecture in libraries. This study establishes the Apache Hadoop Ecosystem as a possible solution for delivering BDA services in libraries.
Research limitations/implications
The present work suggests adapting the idea of providing various big data services in a library by developing a BDA platform, for instance, providing assistance to the researchers in understanding the big data, cleaning and curation of big data by skilled and experienced data managers and providing the infrastructural support to store, process, manage, analyze and visualize the big data.
Practical implications
The study concludes that Apache Hadoops’ Hadoop Distributed File System and MapReduce components significantly reduce the complexities of big data storage and processing, respectively, and Apache Pig, using Pig Latin scripting language, is very efficient in processing big data and responding to queries with a quick response time.
Originality/value
According to the study, there are significantly fewer efforts made to analyze big data from libraries. Furthermore, it has been discovered that acceptance of the Apache Hadoop Ecosystem as a solution to big data problems in libraries are not widely discussed in the literature, although Apache Hadoop is regarded as one of the best frameworks for big data handling.