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1 – 5 of 5Sadaf Rafiq and Nosheen Fatima Warraich
The purpose of this study is to explore the perception of medical undergraduate students regarding their behavior towards use and non-use of e-books. It also elucidates their…
Abstract
Purpose
The purpose of this study is to explore the perception of medical undergraduate students regarding their behavior towards use and non-use of e-books. It also elucidates their preferences between print and electronic book format.
Design/methodology/approach
It is a quantitative study based on survey method. A semi-structured questionnaire was used to collect the data from final year medical students of three medical colleges of Lahore, Pakistan. Statistical package for social sciences (SPSS) was used to analyse 232 useable questionnaires.
Findings
The findings indicate that the use and non-use of e-books is almost equal among students. The students who use e-books mostly access them through Google books, and they used e-books for academic purpose. Users were convinced about the benefits of e-books such as easy access, 24/7 availability and up-to-date information. However, users and non-users of e-books preferred to use printed version of books. Non-users identified that e-books often distract them because of different links on the website, and they do not want to change their habit of reading printed books. Moreover, they are satisfied with printed books available in their libraries and hesitant to read on screen.
Research limitations/implications
The present study is limited to the medical sciences; its results cannot be generalizing to other academic disciplines.
Practical implications
The findings of the study will assist the medical libraries to improve their e-books collection and also negotiate the publishers for its licence issues. The study will also encourage the librarians to acquire handheld devices and load them with e-books for their users.
Originality/value
This is believed to be the first study on the use of e-books in the perspective of medical students in Pakistan.
Seemab Yousaf, Muhammad Khalid Anser, Muhammad Tariq, Sakhawat Ur Rehman Sahibzada Jawad, Sadaf Naushad and Zahid Yousaf
The purpose of this study is to investigate the impact of technology orientation (TO) on firm performance (FP). This study also aims to identify the mediating role of firm…
Abstract
Purpose
The purpose of this study is to investigate the impact of technology orientation (TO) on firm performance (FP). This study also aims to identify the mediating role of firm innovativeness (FI) in the relation between TO and FP.
Design/methodology/approach
Quantitative approach has been adopted for analyzing the impact of TO on FP in software houses located in two big cities of Pakistan. Mean, standard deviation, correlation and regression analysis were used.
Findings
Results proved that of TO predicts FP and FI mediate the relationship between TO and FP.
Practical implications
This study used cross-sectional further studies may be conducted using longitudinal research design for achieving in-depth insights.
Social implications
Software houses should focus on TO and innovativeness for improving their performance.
Originality/value
This research guides the way to improve performance TO and innovativeness of software houses based on the empirical results.
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Keywords
Fehid Ishtiaq, R. Ellahi, M.M. Bhatti and Sadiq M. Sait
Cilia serves numerous biological functions in the human body. Malfunctioning of nonmotile or motile cilia will have different kinds of consequences for human health. More…
Abstract
Purpose
Cilia serves numerous biological functions in the human body. Malfunctioning of nonmotile or motile cilia will have different kinds of consequences for human health. More specifically, the directed and rhythmic beat of motile cilia facilitates the unidirectional flow of fluids that are crucial in both homeostasis and the development of ciliated tissues. In cilia-dependent hydrodynamic flows, tapering geometries look a lot like the structure of biological pathways and vessels, like airways and lymphatic vessels. In this paper, the Carreau fluid model through the cilia-assisted tapered channel (asymmetric) under the influence of induced magnetic field and convective heat transfer is investigated.
Design/methodology/approach
Lubrication theory is a key player in the mathematical formulation of momentum, magnetic field and energy equations. The formulated nonlinear and coupled differential equations are solved with the aid of the homotopy perturbation method (HPM). The graphical results are illustrated with the help of the computational software “Mathematica.”
Findings
The impact of diverse emerging physical parameters on velocity, induced magnetic field, pressure rise, current density and temperature profiles is presented graphically. It is observed that the cilia length parameter supported the velocity and current density profiles, while the Hartman number and Weissenberg number were opposed. A promising effect of emerging parameters on streamlines is also perceived.
Originality/value
The study provides novel aspects of cilia-driven induced magnetohydrodynamics flow of Carreau fluid under the influence of induced magnetic field and convective heat transfer through the asymmetric tapered channel.
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objective of the present investigation is to examine the influence of Hall on the peristaltic mechanism of Johnson-Segalman fluid in a heated channel with elastic walls. The…
Abstract
Purpose
objective of the present investigation is to examine the influence of Hall on the peristaltic mechanism of Johnson-Segalman fluid in a heated channel with elastic walls. The transmission of heat is carried out. Relevant equations are computed for heat transfer coefficient, temperature and velocity. Low Reynolds number assumptions and long wavelength are employed. The interpretation of various parameters is analyzed. The results indicate that the heat transfer coefficient, temperature and velocity are larger for viscous material in comparison with Johnson-Segalman material.
Design/methodology/approach
The transmission of heat is carried out. Relevant equations are computed for heat transfer coefficient, temperature and velocity. Low Reynolds number assumptions and long wavelength are employed. The interpretation of various parameters is analyzed. The results indicate that the heat transfer coefficient, temperature and velocity are larger for viscous material in comparison with Johnson-Segalman material.
Findings
The formulation of paper is executed as follows. Section 2 comprises problem summary and mathematical design. Solution methodology is discussed, and expressions for temperature, velocity and coefficient of heat transfer are derived in Section 3. Graphical outcomes for the parameters are reported in Section 4. Conclusions are outlined in Section 5.
Practical implications
Peristaltic phenomenon of fluids has a definite role in many physiological, industrial and engineering processes. The mechanical devices for instance finger and roller pumps operate via this process, and it is quite significant for vasomotion of blood vessels, consumption of food via esophagus, chyme flow in gastrointestinal zone, toxic liquid flow in nuclear industry and transport of corrosive fluids.
Originality/value
Literature review witnesses that information about peristalsis of conducting fluid in a heated channel with flexible walls and Hall effect is scarce. So, our goal is to discuss the peristaltic activity of non-Newtonian fluids in flexible channel. Johnson-Segalman fluid is taken into account. This model is used to allow non-affine deformations. Experimentalists relate “spurt” with wall slip. That is why the work presented is original.
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Muhammad Ijaz Khan, Shahid Farooq, Tasawar Hayat, Faisal Shah and Ahmed Alsaedi
The novel mechanical, chemical and thermodynamics characteristics of both single- and multi-wall carbon nanotubes (CNTs) make them a subject of much attention for the scientists…
Abstract
Purpose
The novel mechanical, chemical and thermodynamics characteristics of both single- and multi-wall carbon nanotubes (CNTs) make them a subject of much attention for the scientists and engineers from all domains. Fluid flows subject to CNTs are significant in biomedical engineering, energy storage systems, domestic and industrial cooling, automobile industries and solar energy collectors, etc. Keeping such effectiveness of CNTs in mind, this paper aims to examine peristaltic flow subject to CNTs in an asymmetric tapered channel. Both single and multiple walls CNTs are considered. The viscosity of nanomaterial depends on nanoparticles volume fraction and temperature. Total entropy rate through second law of thermodynamics is calculated. Heat source/sink and nonlinear heat flux are accounted.
Design/methodology/approach
The complicated flow expressions are simplified through lubrication approach. The velocity, temperature and entropy expressions are numerically solved by the built-in-shooting method.
Findings
The solutions for entropy generation, temperature and velocity are plotted, and the influences of pertinent variables are examined. The authors noticed that entropy generation is an increasing function of the Brinkman number.
Originality/value
The originality of this work is to communicate peristaltic CNTs-based nanomaterial peristaltic flow of viscous fluid in an asymmetric channel. No such consideration is yet published in the literature.
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