60,752 research outputs found
THE MYSTERY OF REGIONAL UNEMPLOYMENT DIFFERENTIALSA SURVEY OF THEORETICAL AND EMPIRICAL EXPLANATIONS
Difficult decisions: Migration from Small Island Developing States under climate change
The impacts of climate change on Small Island Developing States (SIDS) are leading to discussions regarding decision-making about the potential need to migrate. Despite the situation being well-documented, with many SIDS aiming to raise the topic to prominence and to take action for them-selves, limited support and interest has been forthcoming from external sources. This paper presents, analyzes, and critiques a decision-making flowchart to support actions for SIDS dealing with climate change-linked migration. The flowchart contributes to identifying the pertinent topics to consider and the potential support needed to implement decision-making.
The flowchart has significant limitations and there are topics which it cannot resolve. On-the ground considerations include who decides, finances, implements, monitors, and enforces each decision. Additionally, views within communities differ, hence mechanisms are needed for dealing with differences, while issues to address include moral and legal blame for any climate change-linked migration, the ultimate goal of the decision-making process, the wider role of migration in SIDS communities and the right to judge decision-making and decisions. The conclusions summarize the paper, emphasizing the importance of considering contexts beyond climate change and multiple SIDS voices
Disjointed Service: An English Case Study of Multi-Agency Provision in Tackling Child Trafficking
This paper examines the issue of child trafficking in the United Kingdom and of multi-agency responses in tackling it. The UK, as a signatory to the recent trafficking protocols, is required to implement measures to identify and support potential victims of trafficking - via the National Referral Mechanism. Effective support for child victims is reliant on cooperation between agencies. Our regional case-study contends that fragmented agency understandings of protocols and disjointed partnership approaches in service delivery means the trafficking of vulnerable children continues across the region. This paper asserts that child-trafficking in the UK, previously viewed as an isolated localised phenomenon, maybe far more widespread, revealing deficiencies in child protection services for vulnerable children
Geospatial Narratives and their Spatio-Temporal Dynamics: Commonsense Reasoning for High-level Analyses in Geographic Information Systems
The modelling, analysis, and visualisation of dynamic geospatial phenomena
has been identified as a key developmental challenge for next-generation
Geographic Information Systems (GIS). In this context, the envisaged
paradigmatic extensions to contemporary foundational GIS technology raises
fundamental questions concerning the ontological, formal representational, and
(analytical) computational methods that would underlie their spatial
information theoretic underpinnings.
We present the conceptual overview and architecture for the development of
high-level semantic and qualitative analytical capabilities for dynamic
geospatial domains. Building on formal methods in the areas of commonsense
reasoning, qualitative reasoning, spatial and temporal representation and
reasoning, reasoning about actions and change, and computational models of
narrative, we identify concrete theoretical and practical challenges that
accrue in the context of formal reasoning about `space, events, actions, and
change'. With this as a basis, and within the backdrop of an illustrated
scenario involving the spatio-temporal dynamics of urban narratives, we address
specific problems and solutions techniques chiefly involving `qualitative
abstraction', `data integration and spatial consistency', and `practical
geospatial abduction'. From a broad topical viewpoint, we propose that
next-generation dynamic GIS technology demands a transdisciplinary scientific
perspective that brings together Geography, Artificial Intelligence, and
Cognitive Science.
Keywords: artificial intelligence; cognitive systems; human-computer
interaction; geographic information systems; spatio-temporal dynamics;
computational models of narrative; geospatial analysis; geospatial modelling;
ontology; qualitative spatial modelling and reasoning; spatial assistance
systemsComment: ISPRS International Journal of Geo-Information (ISSN 2220-9964);
Special Issue on: Geospatial Monitoring and Modelling of Environmental
Change}. IJGI. Editor: Duccio Rocchini. (pre-print of article in press
Migration, Risk and Livelihoods: A Chinese Case
China has turned from a ‘low risk’ to a ‘high risk’ society since the start of the market reforms in the late
1970s. Market, while bringing diverse livelihood opportunities to rural people, has simultaneously distributed
risks, and the exposure and vulnerability to them unequally among different social groups. This
paper attempts to apply the risk concept to the study of one of the most socially disadvantaged groups in
China, namely rural-urban migrants, through analysing the narratives of members of a migratory family
of the Hui Muslim national minority from the Qinghai-Tibet Plateau, who run a business in the northern
city of Tianjin. Drawing on ethnographic fieldwork, the research adopts an actor-oriented perspective
combined with qualitative longitudinal research methodology (or ‘extended case method’) to delineate
a livelihood trajectory of this family, and explore the relationships between livelihood, risk, social networks,
agency and public policy interventions
Parallel and Distributed Simulation from Many Cores to the Public Cloud (Extended Version)
In this tutorial paper, we will firstly review some basic simulation concepts
and then introduce the parallel and distributed simulation techniques in view
of some new challenges of today and tomorrow. More in particular, in the last
years there has been a wide diffusion of many cores architectures and we can
expect this trend to continue. On the other hand, the success of cloud
computing is strongly promoting the everything as a service paradigm. Is
parallel and distributed simulation ready for these new challenges? The current
approaches present many limitations in terms of usability and adaptivity: there
is a strong need for new evaluation metrics and for revising the currently
implemented mechanisms. In the last part of the paper, we propose a new
approach based on multi-agent systems for the simulation of complex systems. It
is possible to implement advanced techniques such as the migration of simulated
entities in order to build mechanisms that are both adaptive and very easy to
use. Adaptive mechanisms are able to significantly reduce the communication
cost in the parallel/distributed architectures, to implement load-balance
techniques and to cope with execution environments that are both variable and
dynamic. Finally, such mechanisms will be used to build simulations on top of
unreliable cloud services.Comment: Tutorial paper published in the Proceedings of the International
Conference on High Performance Computing and Simulation (HPCS 2011). Istanbul
(Turkey), IEEE, July 2011. ISBN 978-1-61284-382-
How it feels ‘on the ground’ : the experiences of residents from a subnational island jurisdiction
Beyond the houses of assembly, media, political hustings and the law courts, how is life on a small, subnational island jurisdiction played out? This paper is an attempt to explore and explain how islanders feel to be governed ‘on the ground’. It suggests that individuals and households seek to exploit global and local offerings and opportunities in a flexibly strategic combination, as well as out of sheer necessity. SNIJ residents will suffer the achievements and failures of the various layers of political officers, at home and abroad, while typically hedging their bets. Securing double residencies, undergoing multiple stints overseas for work and education, tolerating complex transportation routes and itineraries, becomes the order of the day, every day, for those who have the resources and capabilities of doing so; and the dreams and desires of those who cannot.peer-reviewe
ADEPT2 - Next Generation Process Management Technology
If current process management systems shall be applied to a broad spectrum of applications, they will have to be significantly improved with respect to their technological capabilities. In particular, in dynamic environments it must be possible to quickly implement and deploy new processes, to enable ad-hoc modifications of single process instances at runtime (e.g., to add, delete or shift process steps), and to support process schema evolution with instance migration, i.e., to propagate process schema changes to already running instances. These requirements must be met without affecting process consistency and by preserving the robustness of the process management system. In this paper we describe how these challenges have been addressed and solved in the ADEPT2 Process Management System. Our overall vision is to provide a next generation process management technology which can be used in a variety of application domains
- …