S. Aris, A. Messai, H. Mokhtari and M. Benslama
The use of LEO satellite systems has become widespread throughout the world, not only from the services standpoint but in large scale communication networks as well, as they make…
Abstract
The use of LEO satellite systems has become widespread throughout the world, not only from the services standpoint but in large scale communication networks as well, as they make it possible to communicate from any point of the globe. Lately, the communications in the satellite field have been markedly developed thanks to the Low Earth Orbit (LEO) satellites and GEO satellite orbit. This paper deals with the main survey of these networks by a demonstration of satellite constellations constitutions and the different interfering factors, namely the number of satellites in each orbit, modelling the HANDCHECK problems or Handover satellite probably blocking. In order to preserve the information, to make sure that a seamless communication between two satellite zones is ensured the Hand check should continuously be present in satellite networks. Although the achievement of such schemes is routine work in the laboratory, nontrivial problems emerge in long-distance applications. At present, the only suitable system for long-distance quantum communication is photons. The essential work carried out in our research laboratory concerns an approach in software development of the implementation of Quantum Key Distribution (QKD) Networks with LEO orbit satellites and a reduction of the telecommunication interruption risks, which indeed will provide a better communication quality.
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Fatma Ben Slama and Maissa Jandoubi
This study aims to provide insights into the possible impact of International Public Sector Accounting Standards (IPSAS) on public governance and perceived levels of corruption in…
Abstract
Purpose
This study aims to provide insights into the possible impact of International Public Sector Accounting Standards (IPSAS) on public governance and perceived levels of corruption in developing countries.
Design/methodology/approach
Through a multivariate analysis on panel data applied to 36 countries in the Middle East and North Africa (MENA) region and sub-Saharan Africa over the period 2010–2020, the authors test the impact of IPSAS adoption on transparency, accountability and perceptions of less corruption. The authors examine the moderating role of transparency and accountability in the strength of the relationship between IPSAS and perceived corruption.
Findings
The main results show that IPSAS adoption promotes an increase in transparency and accountability and leads to the perception of less corruption. Additional tests show that transparency and accountability strengthen the effect of IPSAS adoption and experience on perceived corruption.
Research limitations/implications
The first limitation may be the use of the Transparency International CPI to measure the level of perceived corruption. Probably, the CPI does not reflect the actual levels of corruption in countries while the literature argues that these two measures are related. Also, the lack of data on the status and level of adoption of IPSAS by governments may be one limitation of the sample.
Practical implications
The study may help public authorities in their decision to adopt IPSAS. In light of the findings, standard-setting bodies could be encouraged to strengthen the disclosure requirements of IPSAS that make governments more transparent and accountable to limit perceptions of corruption.
Social implications
This study may also help citizens understand the benefits of such reforms in protecting public assets and how such standards may help improve social welfare.
Originality/value
To the best of the authors’ knowledge, this is one of the few studies that examines the impact of IPSAS on good governance by combining the dimensions of transparency, accountability and perceptions of corruption in DCs. It also provides insights into the moderating role of public governance pillars. Finally, it includes the IPSAS experience of the country, which has been little tested previously.
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The purpose of this paper is to focus on the mental health of two immigrants supported by a non-profit organisation on the outskirts of Lisbon. The ethnography sets out the…
Abstract
Purpose
The purpose of this paper is to focus on the mental health of two immigrants supported by a non-profit organisation on the outskirts of Lisbon. The ethnography sets out the discourse of these users who are also residents of Terraços da Ponte, a social housing neighbourhood, and the workers who try to help them in the context of the non-profit organisation’s endeavours.
Design/methodology/approach
In order to explore the intersections between these users and state and non-state structures, this investigation relied on intensive fieldwork at a rehabilitated neighbourhood in Lisbon, as well as semi-directive interviews and life stories taken with workers of the institution and the people they were trying to help.
Findings
This paper shows how vulnerability has been produced in a social housing neighbourhood on the outskirts of Lisbon and how it connects to neoliberal policies employed by NGOs acting on the field.
Research limitations/implications
Any general conclusions about the subject need to take into consideration that this research looks at the work of a specific non-profit organisation during a particular period in time.
Practical implications
This research seeks not only to promote a critical approach to the subject, but also to contribute to the production of appropriate health policies for the immigrant population residing in Portugal.
Originality/value
The analysis of health and social care practices regarding so-called vulnerable subjects relies heavily on “a mix of good intentions, developmental ambitions, paternalistic attitudes and desire to control deviant populations” (Pussetti and Barros, 2012, p. 47). Although there is not a single solution to this problem, several levels of analysis were explored: the non-profits’ goals and inspirations, the workers motivations, the subjects’ expectations regarding the kind of help they can get from these services and their ability to exert their own agency despite the conditions governing their lives.