72,061 research outputs found
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Benefits and challenges of applying Semantic Web Services in the e-Government domain
Joining up services in e-Government usually implies governmental agencies acting in concert without a central control regime. This requires the sharing of scattered and heterogeneous data. Semantic Web Service (SWS) technology can help to integrate, mediate and reason between these datasets. However, since few real-world applications have been developed, it is still unclear which are the actual benefits and issues of adopting such a technology in the e-Government domain. In this paper, we contribute to raising awareness of the potential benefits in the e-Government community by analyzing motivations, requirements, and expected results, before proposing a reusable SWS-based framework. We demonstrate the application of this framework by a compelling use case: a GIS-based emergency planning system. We illustrate the obtained benefits and the key challenges which remain to be addressed
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Developing Integrated Waste Management Systems: Information Needs and the Role of Locally Based Data
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Effective use of data in waste strategy planning in the UK
Effective waste strategy planning for sustainable and integrated waste management is predicated on high-quality information. However a review of recent local authority waste strategies in England, part of a research project into effective use of data and analysis in waste strategy planning carried out by researchers at the Open University, showed little evidence of being based on thorough analysis. Lack of good data on many aspects of performance restricts what can be achieved in planning better integrated, more sustainable waste management provision. This paper draws from the results of that project and illustrates improvements that could be achieved by using better quality data and analysis to inform decision making. The research explored the use of various types of information and analysis including compositional analysis and establishing diversion rates; scenario building; applications of geographical information systems; understanding and measuring public participation; the use of trials to collect relevant data; and understanding of the effects of recycling schemes on residual waste composition. The general principals and methodologies of each approach are illustrated by examples derived from the authors’ analysis and interpretation of local authority data provided by case study partners, and show how local data can provide relevant and effective local answers
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Geospatial data integration with Semantic Web services: the eMerges approach
Geographic space still lacks the semantics allowing a unified view of spatial data. Indeed, as a unique but all encompassing domain, it presents specificities that geospatial applications are still unable to handle. Moreover, to be useful, new spatial applications need to match human cognitive abilities of spatial representation and reasoning. In this context, eMerges, an approach to geospatial data integration based on Semantic Web Services (SWS), allows the unified representation and manipulation of heterogeneous spatial data sources. eMerges provides this integration by mediating legacy spatial data sources to high-level spatial ontologies through SWS and by presenting for each object context dependent affordances. This generic approach is applied here in the context of an emergency management use case developed in collaboration with emergency planners of public agencies
Which households are most distant from health centers in rural China? Evidence from a GIS network analysis
In this paper we have two objectives - one empirical; one methodological. Although China’s leaders are beginning to pay attention to health care in rural China, there are still concerns about access to health services. To examine this issue, we use measures of travel distances to health services to examine the nature of coverage in Shaanxi Province, our case study. The mean distance by road to the nearest health center is still more than 6 kilometers. When we use thresholds for access of 5 and 10 kilometers we find that more than 40 (15) percent of the rural population lives outside of these 5 (10) kilometer service areas for health centers. The nature of the access differs by geographical region and demographic composition of the household. The methodological contribution of our paper originates from a key feature of our analysis in which we use Geographic Information System (GIS) network analysis methods to measure traveling distance along the road network. We compare these measures to straight-line distance measures. Road distances (produced by network analysis) produce measures (using means) that are nearly twice as great as straight-line distances. Moreover, the errors in the measures (that is, the difference between road distances and straight-line distances) are not random. Therefore, traditional econometric methods of ameliorating the effects of measurement errors, such as instrument variables regression, will not produce consistent results when used with straight-line distances
Contribution of muskeg channel habitats to juvenile coho salmon production in the Situk River, Alaska
Thesis (M.S.) University of Alaska Fairbanks, 2006This study examines seasonal patters of habitat use by juvenile coho salmon in the Situk River and the importance of muskeg channels. To determine seasonal patterns I trapped fish from a range of habitats every two weeks during the summer of 2005. Analysis of the length-frequency data these samples provided showed most fry emerged in gravel bedded channels and that a substantial number of these fish then moved into muskeg channels during their first summer, rearing there until smolting at age 1 + or 2+. To estimate the number of coho salmon using muskeg channels, I established a relationship between channel width and fish density and scaled this up to the entire drainage using GIS analysis. This demonstrated that muskeg channels provide important rearing habitat. Comparison with published data suggests that muskegs are responsible for between 14% and 80% of total coho salmon smolt production in the Situk River
Potential applications of geospatial information systems for planning and managing aged care services in Australia
[Abstract]: This paper discusses the potential applications of Geospatial Information Technology (GITs) to assist in planning and managing aged care programs in Australia. Aged care is complex due to the numbers of participants at all levels of including planning of services, investing in capacity, funding, providing services, auditing, monitoring quality, and in accessing and using facilities and services. There is a vast array of data spread across the entities that are joined to aged care. The decision-making process for investment in capacity and service provision might be aided by technology including GIT. This is also expected to assist in managing and analysing the vast amount of demographic, geographic, socio-economic and behavioral data that might indicate current and future demand for services the aged and frail-aged population.
Mapping spatio-temporal changes in near real time can assist in the successful planning and management of aged care programs. Accurate information on the location of aged care services centres and mapping the special needs of clients and their service needs may assist in monitoring access to services and assist in identifying areas where there are logistic challenges for accessing services to meet needs. GIT can also identifying migrations of aged people and of the cohorts of the population who are likely to be the next wave of clients for aged care services.
GITs include remote sensing, geographic information systems (GIS) and global positioning systems (GPS) technologies, which can be used to develop a user friendly digital system for monitoring, evaluating and planning aged care and community care in Australia. Whilst remote sensing data can provide current spatiotemporal inventory of features such as locations of carer services, infrastructure, on a consistent and continuous coordinate system, a GIS can assist in storing, cross analysing, modeling and mapping of spatial data pertaining to the needs of the older people. GITs can assist in the development of a single one-stop digital database which will prove a better model for managing aged care in Australia. GIT will also be a component of technologies such as activity monitors to provide tracking functionality. This will assist in tracking dementia sufferers who may be prone to wandering and be exposed to risk
Choice and the composition of general practice patient registers
Choice of general practice (GP) in the National Health Service (NHS), the UKs universal healthcare
service, is a core element in the current trajectory of NHS policy. This paper uses an accessibility-based
approach to investigate the pattern of patient choice that exists for GPs in the London
Borough of Southwark. Using a spatial model of GP accessibility it is shown that particular population
groups make non-accessibility based decisions when choosing a GP. These patterns are assessed by
considering differences in the composition of GP patient registers between the current patient
register, and a modelled patient register configured for optimal access to GPs. The patient
population is classified in two ways for the purpose of this analysis: by geodemographic group, and
by ethnicity. The paper considers choice in healthcare for intra-urban areas, focusing on the role of
accessibility and equity
Panama City Fisheries Resources Office: FY 2002 Annual Report
HIGHLIGHTS FOR FY 2002
1. United States Senator Bob Graham assisted with a Gulf sturgeon survey.
2. Completed 3-year Gulf sturgeon population study in the Choctawhatchee River
drainage.
3. Completed Gulf sturgeon potential spawning habitat survey for Northwest Florida and
Southeast Alabama river systems.
4. Initiated Gulf sturgeon marine habitat and food resources study.
5. Completed Gulf sturgeon sentinel fish study.
6. Coordinated and conducted tagging of over 110,000 Phase II striped bass at Welaka
and Warm Springs National Fish Hatchery.
7. Completed Okefenokee National Wildlife Refuge fishery sampling.
8. Developed a manuscript regarding the fishery of Banks Lake NWR.
9. Initiated development of a fish Index of Biotic Integrity for Florida panhandle streams.
10. Coordinated Okaloosa darter workshop.
11. Continued examining insect communities on Eglin AFB.
12. Sponsored and coordinated stream restoration workshop.
13. Provided technical assistance via Partners for Fish and Wildlife for stream restoration
within the Northeast Gulf Ecosystem.
14. Finalized regional curve development in the Northern Region of Florida and secured
significant funds for FY03 to expand to other regions in Florida.
15. Initiated freshwater mussel conservation in the Northeastern Gulf Ecosystem
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