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Displaying Results 1 - 25 of 25 on page 1 of 1
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Assessing the Quality of Open Spatial Data for Mobile Location-based Services Research and Applications
(2011)
Ciepłuch, Błażej; Mooney, Peter; Jacob, Ricky; Zheng, Jianghua; Winstanley, Adam C.
Assessing the Quality of Open Spatial Data for Mobile Location-based Services Research and Applications
(2011)
Ciepłuch, Błażej; Mooney, Peter; Jacob, Ricky; Zheng, Jianghua; Winstanley, Adam C.
Abstract:
New trends in GIS such as Volunteered Geographical Information (VGI), Citizen Science, and Urban Sensing, have changed the shape of the geoinformatics landscape. The OpenStreetMap (OSM) project provided us with an exciting, evolving, free and open solution as a base dataset for our geoserver and spatial data provider for our research. OSM is probably the best known and best supported example of VGI and user generated spatial content on the Internet. In this paper we will describe current results from the development of quality indicators for measures for OSM data. Initially we have analysed the Ireland OSM data in grid cells (5km) to gather statistical data about the completeness, accuracy, and fitness for purpose of the underlying spatial data. This analysis included: density of user contributions, spatial density of points and polygons, types of tags and metadata used, dominant contributors in a particular area or for a particular geographic feature type, etc. There greatest OSM a...
http://mural.maynoothuniversity.ie/4924/
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Charting movement: mapping internet infrastructures
(2003)
Dodge, Martin; Kitchin, Rob
Charting movement: mapping internet infrastructures
(2003)
Dodge, Martin; Kitchin, Rob
Abstract:
Abstract included in text.
http://mural.maynoothuniversity.ie/7294/
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Cognition and Cultures of Mapping
(2011)
Perkins, Chris; Kitchin, Rob; Dodge, Martin
Cognition and Cultures of Mapping
(2011)
Perkins, Chris; Kitchin, Rob; Dodge, Martin
Abstract:
Abstract included in text.
http://mural.maynoothuniversity.ie/7309/
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Crowdsourcing: A Geographic Approach to Public Engagement, The Programmable City Working Paper 6
(2014)
Lauriault, Tracey P.; Mooney, Peter
Crowdsourcing: A Geographic Approach to Public Engagement, The Programmable City Working Paper 6
(2014)
Lauriault, Tracey P.; Mooney, Peter
Abstract:
In this paper we examine three geographic crowdsourcing models, namely: volunteered geographic information (VGI), citizen science (CS) and participatory mapping (PM) (Goodchild, 2007; Audubon Society, 1900; and Peluso, 1995). We argue that these geographic knowledge producing practices can be adopted by governments to keep databases up to date (Budhathoki et al., 2008), to gain insight about natural resources (Conrad and Hilchey, 2011), to better understand the socio-economy of the people it governs (Johnston and Sieber, 2013) and as a form of data-based public engagement. The paper will be useful to governments and public agencies considering using geographic crowdsourcing in the future. We begin by defining VGI, CS, PM and crowdsourcing. Two typologies are then offered as methods to conceptualize these practices and the Kitchin (2014) data assemblage framework is proposed as a method by which state actors can critically examine their data infrastructures. A selection of exemp...
http://mural.maynoothuniversity.ie/5681/
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Examining Different Approaches to Mapping Internet Infrastructure. CASA Working Paper Series No. 39
(2001)
Dodge, Martin; Kitchin, Rob
Examining Different Approaches to Mapping Internet Infrastructure. CASA Working Paper Series No. 39
(2001)
Dodge, Martin; Kitchin, Rob
Abstract:
Over the last decade or so there has been a phenomenal growth in the use and diversity of information and communications technologies (ICTs), with the rise of Internet being of particular note. Current estimates, as of autumn 2001, are that 513 million people from around the world use the Internet for all manner of personal and business communications (Nua 2001). Concomitant to this growth, there has been a multi-billion dollar investment in vast assemblages of powerful computer servers and the infrastructure necessary to support current and projected demand in information processing and exchange, including long haul fibre-optic backbones networks to link countries and metropolitan cores, high-speed routers and switches, and ‘last-mile’ DSL and cable connections (see OECD 2001, TeleGeography 2001 for current statistics). This strategic investment is designed to garner market share in the rapidly expanding information economy (worth a reported $775.6 billion in the US alone in 1999; ...
http://mural.maynoothuniversity.ie/2751/
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Georeferenced four-dimensional virtual environments: principles and applications
(1998)
Raper, Jonathan F.; McCarthy, Tim; Williams, Nathan
Georeferenced four-dimensional virtual environments: principles and applications
(1998)
Raper, Jonathan F.; McCarthy, Tim; Williams, Nathan
Abstract:
This paper introduces and defines the concept of a four-dimensional virtual environment as “multidimensional/multimedia representations of phenomena in natural and built environments permitting the realistic monitoring, analysis and evaluation of the component phenomena”. It is argued that current geographic information systems cannot handle these representations and so new tools need to be built. This paper describes two applications of virtual environments: the first is an application which can link oblique or vertical aerial videography to map or surface models in real-time, while the second example is an application which links a user-browseable virtual world with a map. The paper concludes by suggesting that the approaches demonstrated here are indicative of what the next generation of geographic information handling might look like.
http://mural.maynoothuniversity.ie/12372/
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Incremental and batch planar simplification of dense point cloud maps
(2015)
Whelan, Thomas; Ma, L.; Bondarev, Egor; de With, Peter H.N.; McDonald, John
Incremental and batch planar simplification of dense point cloud maps
(2015)
Whelan, Thomas; Ma, L.; Bondarev, Egor; de With, Peter H.N.; McDonald, John
Abstract:
Dense RGB-D SLAM techniques and high-fidelity LIDAR scanners are examples from an abundant set of systems capable of providing multi-million point datasets. These datasets quickly become difficult to process due to the sheer volume of data, typically containing significant redundant information, such as the representation of planar surfaces with millions of points. In order to exploit the richness of information provided by dense methods in real-time robotics, techniques are required to reduce the inherent redundancy of the data. In this paper we present a method for incremental planar segmentation of a gradually expanding point cloud map and a method for efficient triangulation and texturing of planar surface segments. Experimental results show that our incremental segmentation method is capable of running in real-time while producing a segmentation faithful to what would be achieved using a batch segmentation method. Our results also show that the proposed planar simplification an...
http://mural.maynoothuniversity.ie/8272/
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Integration of dynamic LiDAR and image sensor data for route corridor mapping
(2007)
McCarthy, Tim; Zheng, Jianghua; Fotheringham, Stewart
Integration of dynamic LiDAR and image sensor data for route corridor mapping
(2007)
McCarthy, Tim; Zheng, Jianghua; Fotheringham, Stewart
Abstract:
Building and maintaining modern transportation infrastructure demands considerable expenditure for any nation. These terrestrial route corridor zones include road, rail and to a lesser extent waterways. Road networks range from the large highways and motorways covering hundreds of kilometres down to smaller street networks that may only be few hundred meters in length. These route networks attract their own unique set of spatial information requirements in terms of overall management. These include transportation planning, engineering and operation. High quality, timely spatial information is required of the entire route corridor which now extends past the narrow confines of the road surface and includes the area adjacent to the road edge as well as areas above and below the road surface. Comprehensive 3D spatial information is required, not only, of the network itself but also objects occurring a...
http://mural.maynoothuniversity.ie/12366/
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Integration of dynamic LiDAR and image sensor data for route corridor mapping
(2008)
McCarthy, Tim; Zheng, Jianghua; Fotheringham, Stewart
Integration of dynamic LiDAR and image sensor data for route corridor mapping
(2008)
McCarthy, Tim; Zheng, Jianghua; Fotheringham, Stewart
Abstract:
Building and maintaining modern transportation infrastructure demands considerable expenditure for any nation. These terrestrial route corridor zones include road, rail and to a lesser extent waterways. Road networks range from the large highways and motorways covering hundreds of kilometres down to smaller street networks that may only be few hundred meters in length. These route networks attract their own unique set of spatial information requirements in terms of overall management. These include transportation planning, engineering and operation. High quality, timely spatial information is required of the entire route corridor which now extends past the narrow confines of the road surface and includes the area adjacent to the road edge as well as areas above and below the road surface. Comprehensive 3D spatial information is required, not only, of the network itself but also objects occurring along these route corridors. This information can be used to address the day to day engi...
http://mural.maynoothuniversity.ie/9261/
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Ireland and the European Union: Mapping Domestic Modes of Adaptation and Contestation
(2010)
O'Brennan, John
Ireland and the European Union: Mapping Domestic Modes of Adaptation and Contestation
(2010)
O'Brennan, John
Abstract:
When Professor Joe Lee wrote his magisterial history of twentieth century Ireland in the late 1980s one of the most important issues he addressed was the apparent economic failure of the Republic of Ireland. The main reasons advanced for this failure included slow and erratic patterns of economic growth, low productivity in key economic sectors, high and persistent levels of unemployment, exceptionally high emigration rates and a preponderance of enduring social problems. That this remained the case after more than a decade of EU membership seemed to call into question the wisdom of the Irish decision in 1973 to join the then European Community (EEC). Two decades later Ireland’s membership of the EU was thrown into serious question by the Irish electorate’s rejection in June 2008 of the Lisbon Treaty. This was the third such referendum on Europe held in Ireland since the millennium and the second referendum in three to result in a rejection of an EU Treaty following the failed Nice ...
http://mural.maynoothuniversity.ie/2919/
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Multi-session Visual Simultaneous Localisation and Mapping
(2013)
McDonald, John
Multi-session Visual Simultaneous Localisation and Mapping
(2013)
McDonald, John
Abstract:
One of the principal aims of robotics is to develop robots that are capable of long term autonomy in unstructured and unknown environments. Such autonomy will only be achieved through algorithms that permit robots to perceive, interpret, and interact with the world they inhabit. The foundation to such algorithms is the ability to build and maintain a map of the environment and to estimate the robot’s location relative to that map. This problem is referred to as Simultaneous Localisation and Mapping (or SLAM). Over the past 25 years considerable progress has been made on the SLAM problem with a large number of solutions being reported in the literature. Although the majority of earlier systems depended on active ranging and proprioceptive sensors, more recently multiple approaches have been reported that rely purely on visual sensors. Visual sensors provide much richer measurements of the environment and bring with them a wealth of techniques from the field of computer vision in area...
http://mural.maynoothuniversity.ie/4875/
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New cartographies to chart cyberspace
(2002)
Dodge, Martin; Kitchin, Rob
New cartographies to chart cyberspace
(2002)
Dodge, Martin; Kitchin, Rob
Abstract:
Over the last decade or so there has been a phenomenal growth in the use and diversity of information and communications technologies and the conceptual ‘space’ they support: cyberspace. Understanding the growth of cyberspace, and its myriad of social, economic, and political consequences, as well as the practical tasks of navigating and comprehending the various types or domains of cyberspace (such as the Web, email, real-time chat and instant messaging, file sharing, or 3D virtual worlds) is no easy task. Concepts and techniques from geoinformatics can be usefully employed to promote our understanding and to aid analysis of cyberspace. In particular, maps and map-like interfaces are increasingly becoming useful in representing, and in some senses actually creating, cyberspace. Mapping is thus being recognised as a powerful tool in the visualization and analysis of cyberspace. Therefore in this article the authors of Atlas of Cyberspace discuss how the Internet is being mapped.
http://mural.maynoothuniversity.ie/7253/
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OpenStreetMap standalone server as a core of system for environmental data publication for wide public in Ireland
(2009)
Ciepłuch, Błażej; Mooney, Peter
OpenStreetMap standalone server as a core of system for environmental data publication for wide public in Ireland
(2009)
Ciepłuch, Błażej; Mooney, Peter
Abstract:
In this paper is possible to find info about system developed by EPA Environmental Protection Agency and NUI3 Maynooth for presenting environmental data collected by EPA in graphical easy to understanding for wide audience form, with focus on showing them especially on simple mobile devices like most basic telephones with Java Mobile edition on board.
http://mural.maynoothuniversity.ie/2481/
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Power and Politics of Mapping
(2011)
Kitchin, Rob; Dodge, Martin; Perkins, Chris
Power and Politics of Mapping
(2011)
Kitchin, Rob; Dodge, Martin; Perkins, Chris
Abstract:
There is a long tradition of historical analysis that examines the production of maps, their development over time and their role in society. Such analysis implicitly concerns the power of mapping to influence social and economic relations in particular places and times. More recently, research has focused specifically on the politics and power of mapping; how power is captured in and communicated through maps to assert command and control of territory and socio-spatial relations; how power is bound up in the very creation and use of maps; and how mapping practices are used to resist and contest the exercise of power over space. Much of this research is framed within what has been termed critical cartography (Harley 1989; Crampton and Krygier 2005) and critical GIS (Pickles 1995; Curry 1998; Schuurman 1999; O’Sullivan 2006). Critical cartography is post-positivist in its approach, drawing on a range of social theory to re-examine cartographic representations and the wider milieu of ...
http://mural.maynoothuniversity.ie/7310/
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Real-time Dense Simultaneous Localisation and Mapping over Large Scale Environments
(2014)
Whelan, Thomas J.
Real-time Dense Simultaneous Localisation and Mapping over Large Scale Environments
(2014)
Whelan, Thomas J.
Abstract:
The ability for a robot to create a map of an unknown environment and localise within that map is of critical importance in intelligent autonomous operation. This problem is referred to as Simultaneous Localisation and Mapping (or SLAM) and has been one of the major focusses of robotics research over the past 25 years. Although the initial focus was on 2D laser scan SLAM, more recently full 3D SLAM has become the dominant paradigm. The recent expansion in popularity of full, dense 3D SLAM is arguably a result of the release of the Microsoft Kinect commodity RGB-D sensor, which provides high quality depth sensing capabilities for a little over one hundred US dollars. Before the advent of the Kinect, 3D SLAM methods required either time of flight (TOF) sensors, 3D lidar scanners or stereo vision, which were typically either quite expensive or not suitable for fully mobile real-time operation if dense reconstruction was desired. Another recent technology which is often coupled with den...
http://mural.maynoothuniversity.ie/5801/
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Spatial Data Infrastructures
(2009)
Foley, Ronan
Spatial Data Infrastructures
(2009)
Foley, Ronan
Abstract:
Abstract included in text.
http://mural.maynoothuniversity.ie/2989/
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The Practices of Mapping
(2008)
Kitchin, Rob
The Practices of Mapping
(2008)
Kitchin, Rob
Abstract:
For the past three decades Denis Wood has explored the nature and power of maps; how maps are designed, used, and understood, the role of maps in society; and cartographic theory more broadly. His collaboration with John Fels, The Natures of Maps, furthers this project and seeks to detail both the nature of maps and the nature of maps. For Wood and Fels, ontological thinking about cartography has been fixated on the nature of maps. They illustrate this argument with reference to Arthur Robinson and J.B. Harley, two cartographic theorists with very different ideas about the ontology of maps – maps as objective truths and maps as social constructions. Wood and Fels argue that, despite their differences, Robinson and Harley both conceive of a map as having an inherent truth (they note that for Harley the map itself remains ideologically neutral, with ideology bound to the subject of the map and not the map itself). Wood and Fels reject this position to argue that the map itself, its ve...
http://mural.maynoothuniversity.ie/3872/
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The spatial variation in degree days derived from locational attributes for the 1961-1990 period
(2008)
Fealy, Rowan; Fealy, Réamonn M.
The spatial variation in degree days derived from locational attributes for the 1961-1990 period
(2008)
Fealy, Rowan; Fealy, Réamonn M.
Abstract:
The relationship between degree-days and locational attributes for a selection of sites in Ireland are examined in order to objectively extrapolate values for unmeasured locations. While a number of previous researchers have employed similar methodologies in order to map the geographical variation for selected degree-day thresholds, the authors seek to expand on this existing research through the inclusion of a denser network of stations and for a longer time period, from 1961 to 1990. Degree-days were calculated on a daily basis for three selected threshold temperatures, 0oC, 5oC, 10oC, in order to provide a more accurate assessment of the accumulated monthly energy available at each station. Their geographical distribution was then mapped employing a stepwise linear regression which related locational parameters for each station to the calculated monthly accumulations. While none of the selected thresholds are specific to any plant or insect species they are indicative of the like...
http://mural.maynoothuniversity.ie/1852/
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Thematic analysis and mapping of existing centralised models which aim to support teaching, learning, research and writing in higher education.
(2018)
Farrell, Alison
Thematic analysis and mapping of existing centralised models which aim to support teaching, learning, research and writing in higher education.
(2018)
Farrell, Alison
Abstract:
This purpose of this document is to report the thematic analysis of that data which was conducted using the model described by Braun and Clarke (2006). The document is intended largely for an internal audience i.e. members of COST Action 15221. Because the analysis was completed as part of a Short Term Scientific Mission (STSM) it is bounded by that which could be achieved within that time frame. As a result, it is important to note that this report represents initial analysis of the data and a presentation of associated findings. A more comprehensive analysis, and one contextualised in the relevant literature, would be desirable, however, that was an impossibility as part of this STSM.
http://mural.maynoothuniversity.ie/13668/
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There's no there there: Virtual reality, space and geographic visualisation.
(2002)
Kitchin, Rob; Dodge, Martin
There's no there there: Virtual reality, space and geographic visualisation.
(2002)
Kitchin, Rob; Dodge, Martin
Abstract:
Abstract included in text.
http://mural.maynoothuniversity.ie/7288/
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Thinking about maps
(2009)
Kitchin, Rob; Perkins, Chris; Dodge, Martin
Thinking about maps
(2009)
Kitchin, Rob; Perkins, Chris; Dodge, Martin
Abstract:
Given the long history of map-making and its scientific and scholarly traditions one might expect the study of cartography and mapping theory to be relatively moribund pursuits with long established and static ways of thinking about and creating maps. This, however, could not be further from the truth. As historians of cartography have amply demonstrated, cartographic theory and praxis has varied enormously across time and space, and especially in recent years. As conceptions and philosophies of space and scientific endeavour have shifted so has how people come to know and map the world. Philosophical thought concerning the nature of maps is of importance because it dictates how we think about, produce and use maps; it shapes our assumptions about how we can know and measure the world, how maps work, their techniques, aesthetics, ethics, ideology, what they tell us about the world, the work they do in the world, and our capacity as humans to engage in mapping. Mapping is epistemolog...
http://mural.maynoothuniversity.ie/2875/
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Towards a geography of health inequalities in Ireland
(2017)
Rigby, Jan; Boyle, Mark; Brunsdon, Chris; Charlton, Martin; Dorling, Danny; Foley, Rona...
Towards a geography of health inequalities in Ireland
(2017)
Rigby, Jan; Boyle, Mark; Brunsdon, Chris; Charlton, Martin; Dorling, Danny; Foley, Ronan; French, Walter; Noone, Simon; Pringle, Dennis G.
Abstract:
Relationships between health inequalities and social disadvantage are well established, but less is known about spatial variations in health. Most geographical studies of health in Ireland have been conducted at a county level. Counties are too large to identify more localised pockets of poor health, whereas electoral districts (EDs) can be too small to permit stable estimates of the underlying rates, due to the small number of deaths each year. This paper reports the findings of an analysis of deaths in 2006 and 2011 using a new set of 407 areas intermediate in size between counties and EDs. The areas having the lowest and the highest age standardised death rates were mostly in Dublin and the other larger cities, but there is at least a 3-fold difference which demonstrates inequalities in health outcomes. Further modelling is required to establish whether this simply reflects the geography of social status.
http://mural.maynoothuniversity.ie/9051/
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Towards Dense Collaborative Mapping using RGBD Sensors
(2017)
Gallagher, Louis; McDonald, John
Towards Dense Collaborative Mapping using RGBD Sensors
(2017)
Gallagher, Louis; McDonald, John
Abstract:
Development of collaborative, perception driven autonomous systems requires the ability for collaborators to compute a rich, shared representation of the environment, and their place in it, in real-time. Using this shared representation, collaborators can communicate geometric, semantic and dynamic information about the environment across frames of reference to one another. Existing state-of-the art dense mapping systems provide a good starting point for developing a collaborative mapping system, however, no system currently covers collaborative mapping directly. In this paper, we introduce our approach to dense collaborative map-ping, offering an introduction to the problem, a discussion of the key challenges involved in developing such a system and an analysis of preliminary results.
http://mural.maynoothuniversity.ie/12009/
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Understanding spatial media
(2016)
Kitchin, Rob; Lauriault, Tracey P.; Wilson, Matthew W.
Understanding spatial media
(2016)
Kitchin, Rob; Lauriault, Tracey P.; Wilson, Matthew W.
Abstract:
Over the past decade a new set of spatial and locative technologies have been rolled out, including online, interactive mapping tools with accompanying application programming interfaces (APIs), interactive virtual globes, user-generated spatial databases and mapping systems, locative media, urban dashboards and citizen reporting geo-systems; and geodesign and architectural and planning tools. In addition, social media produces spatial (meta)data that can be analysed geographically. These technologies, their practices, and the effects they engender have been referred to in a number of ways, including the geoweb, neogeography, volunteered geographic information (VGI), and locative media, which collectively constitute spatial media. This chapter untangles and defines these terms before setting out the transformative effects of spatial media with respect to some fundamental geographic and social concepts: spatial data/information; mapping; space and spatiality; mobility, spatial practi...
http://mural.maynoothuniversity.ie/7241/
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Universal dependencies for Irish
(2016)
Lynn, Teresa; Foster, Jennifer
Universal dependencies for Irish
(2016)
Lynn, Teresa; Foster, Jennifer
Abstract:
Les ressources linguistiques permettant aux études cross-langues de se développer sont très importantes pour les langues minoritaires telles que l’irlandais, car elles favorisent le partage des ressources pour palier au problème du manque de données. Le projet «Universal Dependencies » (UD) a pour but de faciliter les études cross-langues des arbres syntaxiques, des structures linguistiques et de l’analyse syntaxique. L’objectif principal de ce projet est de former un ensemble harmonieux d’arbres syntaxiques en utilisant un schéma d’annotations universelles. Dans cet article, nous présentons la transformation de l’arbre de dépendance syntaxique irlandais (IDT) (Lynn, 2016) au schéma d’annotations universelles du projet UD, suivie d’une description claire des changements structurels nécessaires à cette conversion. Le nouvel arbre est ainsi appelé « Irish Universal Dependency Treebank » ( IUDT ). Language resources that enable cross-lingual studies have become increasingly valuable f...
http://doras.dcu.ie/23607/
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