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1 – 3 of 3Muhammad Kazim Nur Sohad, Giuseppe Celi and Edgardo Sica
This article explores the migration intentions (MIs) embedded in population movements from rural to urban areas in Bangladesh. In this country, urban-centric development policies…
Abstract
Purpose
This article explores the migration intentions (MIs) embedded in population movements from rural to urban areas in Bangladesh. In this country, urban-centric development policies have made cities epicentres of commerce and industrialisation, offering significant employment and livelihood opportunities. This rapid transformation has generated several socio-psychological factors that are influencing the willingness of rural populations to migrate to cities for better jobs, lifestyles and services.
Design/methodology/approach
The present study adopted the theory of planned behaviour (TPB) as a conceptual model to assess the behavioural and psychological factors underlying MIs.
Findings
The results of the structural equation modelling (SEM) indicate that MIs are mainly influenced by subjective norms (SN) and, to a lesser extent, attitudes towards migration (ATM) and perceived behavioural control (PBC).
Originality/value
The analysis drew on an original dataset built through interviews with migrants from rural areas employed in the ready-made garment (RMG) industry in four selective areas of the Metropolitan City of Chittagong.
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Giovanni Droandi and Giuseppe Gibertini
The purpose of this paper is to present the aerodynamic blade design of a tiltwing aircraft with a multi-objective optimization procedure. The aerodynamic design of tiltrotor…
Abstract
Purpose
The purpose of this paper is to present the aerodynamic blade design of a tiltwing aircraft with a multi-objective optimization procedure. The aerodynamic design of tiltrotor blades is a very challenging task in the project of this type of aircraft.
Design/methodology/approach
Tiltrotor blades have to give good performance both in helicopter and aeroplane modes. According to the design parameters (the chords, the twists and the airfoils along the blade), as the optimization objectives are different from one operating condition to another, the blade is the result of a multi-objective constrained optimization based on a controlled elitist genetic algorithm founded on the NSGA-II algorithm. The optimization process uses a BEMT solver to compute rotor performance. To avoid negative effects due to compressibility losses in aeroplane mode, the blade shape has been refined following the normal Mach number criterion.
Findings
It has been found that the optimized rotor blade gives good performance both in terms of figure of merit and propulsive efficiency if compared with experimental data of existing rotor (ERICA tiltrotor) and propeller (NACA high-speed propeller).
Practical implications
The optimization procedure described in this paper for the design of tiltrotor blades can be efficiently used for the aerodynamic design of helicopter rotors and aircraft propellers of all typology.
Originality/value
In this work, advanced methodologies have been used for the aerodynamics design of a proprotor optimized for an aircraft which belongs to the innovative typology of high-performance tiltwing tiltrotor aircraft.
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Kathryn Krase, Leina Luzuriaga, Donna Wang, Andrew Schoolnik, Chantee Parris-Strigle, Latoya Attis and Petra Brown
Repercussions to everyday life caused by the COVID-19 pandemic disproportionately impacted certain segments of the population, including older adults, communities of color and…
Abstract
Purpose
Repercussions to everyday life caused by the COVID-19 pandemic disproportionately impacted certain segments of the population, including older adults, communities of color and women. The societal response to reduce the impact of the pandemic, including closing schools and working from home, has been experienced differentially by women. This study explored how individual challenges and coping mechanisms differed for women as compared to men.
Design/methodology/approach
This study used an anonymous, cross-sectional, online survey early in the COVID-19 pandemic. Convenience, snowball and purposive sampling methods were used. Data were collected in June 2020 targeting adults living in Canada and the USA, with a total of 1,405 people responding, of which, the respondents were primarily women, White and with high education levels.
Findings
The results of this study confirm previous research that women struggled more to adapt to the pandemic and felt less prepared than men during the COVID-19 pandemic. Further, this study found significant differences in the sources of information and support used by women as compared to men.
Originality/value
The findings of this study not only confirm past research but also highlight that practice and policy responses to this pandemic, and future research on national level crises need to be targeted by gender, so that different needs are effectively addressed. Additionally, this article also identifies sources or challenges, as well as support, in order to inform and strengthen such responses.
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