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1 – 10 of 378
Article
Publication date: 31 July 2023

Safia Akram, Maria Athar, Khalid Saeed, Mir Yasir Umair and Taseer Muhammad

The purpose of this study, thermal radiation and viscous dissipation impacts on double diffusive convection on peristaltic transport of Williamson nanofluid due to induced…

Abstract

Purpose

The purpose of this study, thermal radiation and viscous dissipation impacts on double diffusive convection on peristaltic transport of Williamson nanofluid due to induced magnetic field in a tapered channel is examined. The study of propulsion system is on the rise in aerospace research. In spacecraft technology, the propulsion system uses high-temperature heat transmission governed through thermal radiation process. This study will help in assessment of chyme movement in the gastrointestinal tract and also in regulating the intensity of magnetic field of the blood flow during surgery.

Design/methodology/approach

The brief mathematical modelling, along with induced magnetic field, of Williamson nanofluid is given. The governing equations are reduced to dimensionless form by using appropriate transformations. Numerical technique is manipulated to solve the highly nonlinear differential equations. The roll of different variables is graphically analyzed in terms of concentration, temperature, volume fraction of nanoparticles, axial-induced magnetic field, magnetic force function, stream functions, pressure rise and pressure gradient.

Findings

The key finding from the analysis above can be summed up as follows: the temperature profile decreases and concentration profile increases due to the rising impact of thermal radiation. Brownian motion parameter has a reducing influence on nanoparticle concentration due to massive transfer of nanoparticles from a hot zone to a cool region, which causes a decrease in concentration profile· The pressure rise enhances due to rising values of thermophoresis and thermal Grashof number in retrograde pumping, free pumping and copumping region.

Originality/value

To the best of the authors’ knowledge, a study that integrates double-diffusion convection with thermal radiation, viscous dissipation and induced magnetic field on peristaltic flow of Williamson nanofluid with a channel that is asymmetric has not been carried out so far.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 2
Type: Research Article
ISSN: 0961-5539

Keywords

Open Access

Abstract

Purpose

As the coronavirus disease 2019 (COVID-19) continues to spread across countries, it is becoming increasingly clear that the presence of pre-existing noncommunicable diseases (NCDs) dramatically increases the risk of aggravation in persons who contract the virus. The neglect in managing NCDs during emergencies may result in fatal consequences for individuals living with comorbidities. This paper aims to highlight the need for a paradigm shift in the governance of public health emergencies to simultaneously address NCD and noncommunicable disease (CD) pandemics while taking into account the needs of high-risk populations, underlying etiological factors, and the social, economic, and environmental determinants that are relevant for both CDs and NCDs.

Design/methodology/approach

The paper reviews the available global frameworks for pandemic preparedness to highlight the governance challenges of addressing the dual agenda of NCDs and CDs during a public health emergency. It proposes key strategies to strengthen multilevel governance in support of countries to better prepare for public health emergencies through the engagement of a wide range of stakeholders across sectors.

Findings

Addressing both CD and NCD pandemics during public health emergencies requires (1) a new framework that unites the narratives and overcomes service and system fragmentations; (2) a multisectoral and multistakeholder governance mechanism empowered and resourced to include stakeholders across sectors and (3) a prioritized research agenda to understand the political economy of pandemics, the role played by different political systems and actors and implementation challenges, and to identify combined strategies to address the converging agendas of CDs and NCDs.

Research limitations/implications

The article is based on the review of available published evidence.

Practical implications

The uptake of the strategies proposed will better prepare countries to respond to NCD and CD pandemics during public health emergencies.

Originality/value

The article is the first of its kind addressing the governance challenges of the dual pandemic of NCDs and CDs in emergencies.

Details

International Journal of Health Governance, vol. 26 no. 2
Type: Research Article
ISSN: 2059-4631

Keywords

Abstract

Details

Journal of Public Mental Health, vol. 12 no. 4
Type: Research Article
ISSN: 1746-5729

Article
Publication date: 9 September 2014

Claire Wilson, Mohammad Taghi Yasamy, Jodi Morris, Atieh Novin, Khalid Saeed and Sebastiana D. Nkomo

Neuropsychiatric disorders account for a substantial proportion of disease burden and disability in Africa. Despite this, mental health systems are under-resourced in Africa, as…

Abstract

Purpose

Neuropsychiatric disorders account for a substantial proportion of disease burden and disability in Africa. Despite this, mental health systems are under-resourced in Africa, as in most parts of the world, creating a “treatment gap” and denying the African population the right to mental health achieved through access to mental health services. The paper aims to discuss these issues.

Design/methodology/approach

The mental health systems of African countries were compared with figures for all low- and middle-income countries (LAMICS) using data from the World Health Organization Assessment Instrument for Mental Health Systems. Comparable global figures were also available for some indicators from the WHO's World Mental Health Atlas 2011.

Findings

Selected indicators of mental health systems are presented for 14 African countries and shows that they are lower as compared to figures for all other LAMICS and also global figures. The treatment gap for mental disorders is much higher in Africa than comparable global figures. For example, the treatment gap for mood disorders has been estimated from 95 to 100 per cent for some African countries.

Originality/value

There is an imbalance between need and service provision in the area of mental health across the world but particularly in Africa. Despite this, there are a greater number of outpatient than inpatient services in Africa which provides an opportunity for development of community-based services. There are also many encouraging examples of effective approaches to reducing the burden of neuropsychiatic disease in Africa.

Details

Journal of Public Mental Health, vol. 13 no. 3
Type: Research Article
ISSN: 1746-5729

Keywords

Open Access
Article
Publication date: 15 July 2022

Muhammad Shakil Ahmad, Massimiliano Barattucci, Thurasamy Ramayah, Tiziana Ramaci and Narmeen Khalid

Referring to the theory of organizational empowerment, the purpose of this study is to examine the relationship of organizational support and perceived environment on quality of…

2162

Abstract

Purpose

Referring to the theory of organizational empowerment, the purpose of this study is to examine the relationship of organizational support and perceived environment on quality of care and job satisfaction, with organizational commitment as a mediator for the first variable.

Design/methodology/approach

This study employed a cross-sectional research design and data was collected from seven private and public sector hospitals in Pakistan, involving 352 nurses on a voluntary basis through a self-administered survey.

Findings

The results showed that organizational commitment mediates the relationship between organizational support and job satisfaction with the quality of care. Moreover, the perceived environment has an impact on job satisfaction and quality of care.

Originality/value

Healthcare service quality seems strictly dependent on the perceived quality of care and job satisfaction among healthcare workers. Theoretical and practical implications for policymakers and HR management are discussed.

Details

International Journal of Workplace Health Management, vol. 15 no. 6
Type: Research Article
ISSN: 1753-8351

Keywords

Book part
Publication date: 21 November 2014

Saeed Al-Muharrami and Daniel C. Hardy

Islamic and cooperative banks – including credit unions – are broadly similar in that they both share risk with savers. However, risk sharing goes along with ownership control in…

Abstract

Islamic and cooperative banks – including credit unions – are broadly similar in that they both share risk with savers. However, risk sharing goes along with ownership control in cooperatives, whilst Islamic banks share risk with borrowers also, and full downside risk with depositors. Islamic banking is consistent with mutual ownership, which may ease some of the governance and efficiency concerns implied by Shari’ah constraints. Greater risk sharing among cooperative bank stakeholders, along the lines of products offered by Islamic banks, may strengthen cooperatives’ financial resilience.

Details

International Perspectives on Participation
Type: Book
ISBN: 978-1-78441-169-5

Keywords

Article
Publication date: 12 February 2021

Ahmet Esat Suzer and Aziz Kaba

The purpose of this study is to describe precisely the wind speed regime and characteristics of a runway of an International Airport, the north-western part of Turkey.

Abstract

Purpose

The purpose of this study is to describe precisely the wind speed regime and characteristics of a runway of an International Airport, the north-western part of Turkey.

Design methodology approach

Three different probability distributions, namely, Inverse Gaussian (IG), widely used two-parameter Weibull and Rayleigh distributions in the literature, are used to represent wind regime and characteristics of the runway. The parameters of each distribution are estimated by the pattern search (PS)-based heuristic algorithm. The results are compared with the other three methods-based numerical computation, including maximum-likelihood method, moment method (MoM) and power density method, respectively. To evaluate the fitting performance of the proposed method, several statistical goodness tests including the mostly used root mean square error (RMSE) and chi-squared (X2) are conducted.

Findings

In the light of the statistical goodness tests, the results of the IG-based PS attain better performance than the classical Weibull and Rayleigh functions. Both the RMSE and X2 values achieved by the IG-based PS method lower than that of Weibull and Rayleigh distributions. It exhibits a better fitting performance with 0.0074 for RMSE and 0.58 × 10−4 for X2 for probability density function (PDF) in 2012 and with RMSE of 0.0084 and X2 of 0.74 × 10−4 for PDF in 2013. As regard the cumulative density function of the measured wind data, the best results are found to be Weibull-based PS with RMSE of 0.0175 and X2 of 3.25 × 10−4 in 2012. However, Weibull-based MoM shows more excellent ability in 2013, with RMSE of 0.0166 and X2 of 2.94 × 10−4. Consequently, it is considered that the results of this study confirm that IG-based PS with the lowest error value can a good choice to model more accurately and characterize the wind speed profile of the airport.

Practical implications

This paper presents a realistic point of view regarding the wind regime and characteristics of an airport. This study may cast the light on researchers, policymakers, policy analysts and airport designers intending to investigate the wind profile of a runway at the airport in the world and also provide a significant pathway on how to determine the wind distribution of the runway.

Originality value

Instead of the well-known Weibull distribution for the representing of wind distribution in the literature, in this paper, IG distribution is used. Furthermore, the suitability of IG to represent the wind distribution is validated when compared with two-parameter Weibull and Rayleigh distributions. Besides, the performance and efficiency of PS have been evaluated by comparing it with other methods.

Details

Aircraft Engineering and Aerospace Technology, vol. 93 no. 2
Type: Research Article
ISSN: 1748-8842

Keywords

Article
Publication date: 3 January 2017

Khasan S. Karimov, Zubair Ahmad, Noshin Fatima, Muhammad Mansoor Ahmed and Muhammad Abid

The paper aims to study the effects of humidity on the electrical properties of copper phthalocyanine (CuPc) thin films deposited at different gravity conditions.

Abstract

Purpose

The paper aims to study the effects of humidity on the electrical properties of copper phthalocyanine (CuPc) thin films deposited at different gravity conditions.

Design/methodology/approach

Surface-type samples were fabricated on glass substrates with preliminary-deposited copper electrodes. The CuPc solution was prepared in benzene. The thin films of CuPc were deposited on these substrates at diverse gravity conditions by drop-casting and centrifugation at 1 × g and 70 × g, respectively. Impedance and capacitance of the fabricated devices were measured against the different relative humidity ranging from 32 to 98 per cent.

Findings

The impedance and the capacitance of the CuPc film were found to be dependent on the ambient humidity levels (32-98 per cent) and the gravity conditions (1 × g and 70 × g) opted during the fabrication process.

Research limitations/implications

The centrifugation technique can potentially be used in the instrumentation industry for the fabrication of humidity sensors.

Practical implications

The results of the investigations can potentially be used in the instrumentation and optoelectronics industry for the fabrication of humidity sensors.

Originality/value

CuPc films were deposited from a solution in benzene using drop-casting and centrifugation. The electrical properties of the films were found to be dependent on film fabrication conditions and ambient humidity levels. Growth-dependent electrical properties of the CuPc films can be explained by considering their structure.

Details

Pigment & Resin Technology, vol. 46 no. 1
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 27 June 2023

Esra Istek and Chinaza Solomon Ironsi

Given the persistent receptive skills challenges faced by language learners and the numerous merits of using technologically-enhanced learning in the form of mobile-assisted…

Abstract

Purpose

Given the persistent receptive skills challenges faced by language learners and the numerous merits of using technologically-enhanced learning in the form of mobile-assisted language learning in language teaching, this study decides to incorporate a context-analysis-practice-exploration lesson-planning framework with mobile learning to improve the receptive skills of learners. This step is necessary on the recommendation by scholarly research that while implementing technology, teacher training, digital literacy and expertise, incorporating good teaching practices and lesson planning frameworks may assist in yielding positive results.

Design/methodology/approach

This study decides to utilize a mixed-method research design through an experimental approach to elicit information from 90 EFL students concerning the effectiveness of incorporating the context-analysis-practice-exploration framework in a mobile-leaning mode instructional delivery to improve their reading and listening skills.

Findings

After collecting and analyzing data, the study found that while the participants perceived enhanced-mobile learning to make lessons enjoyable, integrating this framework and m-learning improved their reading skills. This study used notable findings to make pedagogical conclusions on the objective of this study.

Originality/value

This study contributes through empirical evidence on the effectiveness of incorporating mobile learning and a responsive lesson planning framework towards improving English as a foreign language learners' learning outcome. Besides, this study is the first to probe and unpack the effectiveness of a responsive lesson-planning framework in language education.

Details

Library Hi Tech, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0737-8831

Keywords

Article
Publication date: 13 October 2022

Ya-Lun Yu, Ting Ting Wu and Yueh-Min Huang

This paper aims to investigate whether the effects of children's current learning are related to their learning efficiency and behavior when they are exposed to two different…

Abstract

Purpose

This paper aims to investigate whether the effects of children's current learning are related to their learning efficiency and behavior when they are exposed to two different gaming media.

Design/methodology/approach

In this paper the authors used a quasi-experimental design to determine whether game-based learning can be improved by using mobile devices equipped with augmented reality (AR).

Findings

The control group using the card game was careful to find the correct answer, with the intention of “obtaining the maximum score with the highest rate of correctness,” whereas the experimental group using the AR board game played aggressively by “obtaining the maximum score with the highest number.”

Research limitations/implications

Although integrating an AR board game into the curriculum is an effective approach, the need to implement such a game in response to different learning attitudes and behaviors of students should be addressed.

Practical implications

Depending on the learning situation, different teaching methods and aids can be used to help students effectively learn. The recommendations based on this experiment can broaden the teaching field and allow for a wider range of experimental studies.

Originality/value

Learning behavior was observed, and user attention was interpreted using MindWave Mobile.

Details

Library Hi Tech, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0737-8831

Keywords

1 – 10 of 378