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1 – 10 of 351Duygu Sezgin, Anne Hendry, Aaron Liew, Mark O'Donovan, Mohamed Salem, Ana María Carriazo, Luz López-Samaniego, Rafael Rodríguez-Acuña, Siobhan Kennelly, Maddalena Illario, Cristina Arnal Carda, Marco Inzitari, Teija Hammar and Rónán O'Caoimh
To identify transitional palliative care (TPC) interventions for older adults with non-malignant chronic diseases and complex conditions.
Abstract
Purpose
To identify transitional palliative care (TPC) interventions for older adults with non-malignant chronic diseases and complex conditions.
Design/methodology/approach
A systematic review of the literature was conducted. CINAHL, Cochrane Library, Embase and Pubmed databases were searched for studies reporting TPC interventions for older adults, published between 2002 and 2019. The Crowe Critical Appraisal Tool was used for quality appraisal.
Findings
A total of six studies were included. Outcomes related to TPC interventions were grouped into three categories: healthcare system-related outcomes (rehospitalisation, length of stay [LOS] and emergency department [ED] visits), patient-related outcomes and family/carer important outcomes. Overall, TPC interventions were associated with lower readmission rates and LOS, improved quality of life and better decision-making concerning hospice care among families. Outcomes for ED visits were unclear.
Research limitations/implications
Positive outcomes related to healthcare services (including readmissions and LOS), patients (quality of life) and families (decision-making) were reported. However, the number of studies supporting the evidence were limited.
Originality/value
Studies examining the effectiveness of existing care models to support transitions for those in need of palliative care are limited. This systematic literature review identified and appraised interventions aimed at improving transitions to palliative care in older adults with advanced non-malignant diseases or frailty.
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Irsyadillah Irsyadillah and Mohamed Salem M Bayou
This study aims to investigate the selection and use of introductory financial accounting (IFA) textbooks in the context of achieving the objectives of accounting education to…
Abstract
Purpose
This study aims to investigate the selection and use of introductory financial accounting (IFA) textbooks in the context of achieving the objectives of accounting education to provide both discipline-specific skills and liberal education.
Design/methodology/approach
This paper adopts a qualitative research design to collect data through semi-structured interviews with 33 accounting educators across Indonesia. This study uses the institutional theory approach to explain how accounting textbooks are selected and used to meet the objectives of accounting education at universities.
Findings
The study provides evidence of the adoption of a systematic procedure for the selection of recommended IFA textbooks. The selection was driven by the technical-regulatory objective of providing technical training. This objective also guides the use of the recommended textbooks. In a sense, accounting educators were more concerned about responding to institutional pressures of preparing accountants for work in the accounting industry rather than providing students with a liberal education that promotes critical thinking and problem-solving skills.
Research limitations/implications
This study focuses on the selection and use of IFA textbooks. Further research should examine the contents of various accounting textbooks and obtain feedback from the people involved in the publication of the textbooks.
Originality/value
The findings of this study have important implications for accounting educators. They can use these findings to improve their selection and use of accounting textbooks.
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Zakaria Mohamed Salem Elbarbary and Mohamed Abdullrahman Alranini
Silicon photovoltaics technology has drawbacks of high cost and power conversion efficiency. In order to extract the maximum output power of the module, maximum power point (MPP…
Abstract
Purpose
Silicon photovoltaics technology has drawbacks of high cost and power conversion efficiency. In order to extract the maximum output power of the module, maximum power point (MPP) is used by implying the nonlinear behavior of I-V characteristics. Different techniques are used regarding maximum power point tracking (MPPT). The paper aims to review the techniques of MPPT used in PV systems and review the comparison between Perturb and Observe (P&O) method and incremental conductance (IC) method that are used to track the maximum power and gives a comparative review of all those techniques.
Design/methodology/approach
A study of MPPT techniques for photovoltaic (PV) systems is presented. Matlab Simulink is used to find the MPP using P&O simulation along with IC simulation at a steady temperature and irradiance.
Findings
MATLAB simulations are used to implement the P&O method and IC method, which includes a PV cell connected to an MPPT-controlled boost converter. The simulation results demonstrate the accuracy of the PV model as well as the functional value of the algorithms, which has improved tracking efficiency and dynamic characteristics. P&O solution gave 94% performance when configured. P&O controller has a better time response process. As compared to the P&O method of tracking, the incremental conductance response rate was significantly slower.
Originality/value
In PV systems, MPPT techniques are used to optimize the PV array output power by continuously tracking the MPP under a variety of operating conditions, including cell temperature and irradiation level.
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Zakaria Mohamed Salem Elbarbary, Ahmed A. Alaifi, Saad Fahed Alqahtani, Irshad Mohammad Shaik, Sunil Kumar Gupta and Vijayakumar Gali
Switching power converters for photovoltaic (PV) applications with high gain are rapidly expanding. To obtain better voltage gain, low switch stress, low ripple and cost-effective…
Abstract
Purpose
Switching power converters for photovoltaic (PV) applications with high gain are rapidly expanding. To obtain better voltage gain, low switch stress, low ripple and cost-effective converters, researchers are developing several topologies.
Design/methodology/approach
It was decided to use the particle swarm optimization approach for this system in order to compute the precise PI controller gain parameters under steady state and dynamic changing circumstances. A high-gain q- ZS boost converter is used as an intermittent converter between a PV and brushless direct current (BLDC) motor to attain maximum power point tracking, which also reduces the torque ripples. A MATLAB/Simulink environment has been used to build and test the positive output quadratic boost high gain converters (PQBHGC)-1, PQBHGC-8, PQBHGC-4 and PQBHGC-3 topologies to analyse their effectiveness in PV-driven BLDC motor applications. The simulation results show that the PQBHGC-3 topology is effective in comparison with other HG cell DC–DC converters in terms of efficiency, reduced ripples, etc. which is most suitable for PV-driven BLDC applications.
Findings
The simulation results have showed that the PQBHGC-3 gives better performance with minimum voltage ripple of 2V and current ripple of 0.4A which eventually reduces the ripples in the torque in a BLDC motor. Also, the efficiency for the suggested PQBHGC-3 for PV-based BLDC applications is the best with 99%.
Originality/value
This study is the first of its kind comparing the different topologies of PQBHGC-1, PQBHGC-8, PQBHGC-4 and PQBHGC-3 topologies to analyse their effectiveness in PV-driven BLDC motor applications. This study suggests that the PQBHGC-3 topology is most suitable in PV-driven BLDC applications.
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Magdy A. Khalaf and Tamer S. Mohamed Salem
This paper aims to empirically investigate how structural barriers affect the relationship between total quality management (TQM) practices implementation and organizational…
Abstract
Purpose
This paper aims to empirically investigate how structural barriers affect the relationship between total quality management (TQM) practices implementation and organizational performance in service industries.
Design/methodology/approach
This research hypothesized the moderation effect of structural barriers on the relationship between TQM practices implementation and organizational performance. A questionnaire was adopted to collect data form 153 Egyptian service companies. Moderated regression analysis was used to test the study hypothesis.
Findings
The empirical analysis suggests that structural barriers partially moderate the relationship between TQM practices implementation and organizational performance. The analysis reveals that the effect of Quality Improvement, Process Improvement, External and Internal Relations and Employee Development – being as TQM dimensions – on performance is moderated by structural barriers. While the results provided insufficient evidence on the moderating effect of structural barriers on the relationship between both Performance Management – being as a TQM dimension – and performance.
Research limitations/implications
This research presents a new perspective for researches to understand the TQM–Performance relationship in the light of the contingency theory. However, the adopted sampling technique and the small sample size might limit the generalizability of the research findings.
Practical implications
This study provides useful insights for service organizations about the necessity of developing suitable structural platform for supporting their TQM efforts to boost their performance which, in turn, improves their competitiveness.
Originality/value
This research proposed and empirically validated how structural barriers play a significant role as moderators to the relationship between TQM implementation and organizational performance within service organizations context.
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Raji Ajwani-Ramchandani and Sonali Bhattacharya
COVID-19 not only has impacted adversely the health infrastructure, taking away lives of millions of people but it has also crippled the economy. The worst effected were food…
Abstract
Purpose
COVID-19 not only has impacted adversely the health infrastructure, taking away lives of millions of people but it has also crippled the economy. The worst effected were food supply chain due to restrictions imposed on operations of shops and retail outlets. The consumers were suffering due to lack of supply. Similarly, agriculture produce were getting wasted due to lack of cold storage.
Methodology
In this case we have proposed how a mobile-based application solution during COVID lockdown can successfully transform the livelihood of rural farmers in the state of Maharashtra (India), a state worst affected by the pandemic.
Result
The technology-integrated supply chain model jointly developed by financial institutions, self-help groups (SHGs) and NGOs has enabled direct selling of fresh produces by rural women farmers to urban large residential societies at their doorsteps. It has provided a solution of municipality waste management by converting the waste to compost, getting them collected and used in the farmlands.
Implications
It will help the urban consumers to have the continuous supply of fresh vegetables and fruits available at their doorsteps, and keep a track of transport of foods from farm to fork. The farmers will be able to get better price for their produce. The model will also contribute towards circular economy (CE) through citizen partnership.
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NIGER: ECOWAS agreement prospects are improving
Details
DOI: 10.1108/OXAN-ES284451
ISSN: 2633-304X
Keywords
Geographic
Topical
The highest-profile event is an ongoing inquiry into alleged corruption under the previous president (and a former ally of the current one), Mohamed Ould Abdel Aziz, who was…
Details
DOI: 10.1108/OXAN-DB261990
ISSN: 2633-304X
Keywords
Geographic
Topical
Aziz is seeking to appeal. The sentencing caps a nearly three-year legal battle beginning in early 2020. Although the charges are plausible, the case also likely reflects an…
Details
DOI: 10.1108/OXAN-DB284255
ISSN: 2633-304X
Keywords
Geographic
Topical
Sreedevi Gandluru, Prasada Rao D.R.V. and O.D. Makinde
The purpose of this paper is to investigate the impact of thermal radiation interaction with Hall current, buoyancy force, and oscillatory surface temperature on…
Abstract
Purpose
The purpose of this paper is to investigate the impact of thermal radiation interaction with Hall current, buoyancy force, and oscillatory surface temperature on hydromagnetic-mixed convective heat exchange stream of an electrically conducting nanofluid past a moving permeable plate in a porous medium within a rotating system.
Design/methodology/approach
Analytical closed-form solutions are obtained for both the momentum and the energy equations using the perturbation method.
Findings
The effects of various important parameters on velocity and temperature fields within the boundary layer are discussed for three different water-based nanofluids containing copper (Cu), aluminum oxide (Al2O3), and titanium dioxide (TiO2) as nanoparticles. Local skin friction and Nusselt number are illustrated graphically and discussed quantitatively. The results show that Hall current significantly affects the flow system. Results for some special cases of the present analysis are in good agreement with the existing literature.
Originality/value
The problem is relatively original to study the hydromagnetic-oscillatory flow of a nanofluid with Hall effect and thermal radiation past a vertical plate in a rotating porous medium.
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