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Performance analysis of text classification algorithms for PubMed articles by Savvi, Suzana
Published 2022“…The Medical Subject Headings (MeSH) thesaurus is a controlled vocabulary developed by the US National Library of Medicine (NLM) for indexing articles in Pubmed Central (PMC) archive. …”
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Page will reload when a filter is selected or excluded.- Adire textiles 1 results 1
- Embedded mobile agent 1 results 1
- Implementation process 1 results 1
- In Nigeria, policies have often failed to achieve set objectives. Although implementation studies have sought to explain policy failures in broad areas of the economy, the shipping sector has often been ignored. This is because such policy studies are largely embedded in the framework of national political economy and public administration. Shipping is located in the interface between national and international political economy. This study investigated the policy dynamics and implementation process of the Nigerian National Shipping Policy and its effects on shipping development in Nigeria. The study adopted survey and case study methods. A questionnaire was administered to 400 purposively selected stakeholders (Shipping companies and banks, Nigerian shippers’ council, Nigerian Merchant Navy, Nigerian chambers of shipping, Nigeria Customs Service, sea farers, importers and exporters). Additional Primary data were derived from in-depth interviews and Focus Group Discussions (FGDs). In-depth interviews were conducted with 20 former members of Armed Forces Ruling Council, legislators, ministers, ship-owners, navigators, marine engineers, lawyers, academics, bankers and former Chief Executive Officers of key government agencies. Ten different Focus Group Discussions (FGDs) involving relevant shipping stakeholders were also conducted. Secondary data were drawn from various libraries, commissioned reports and documents from regulatory agencies and the National Bureau of Statistics. Data were subjected to descriptive and content analysis. Policy intervention to induce shipping sector development has remained constrained by domestic and international factors. The implementation of the National Shipping Policy Act, 1987 and the Cabotage Act, 2003, suffered from poor conceptualization and design of programmes, weak execution and monitoring mechanisms. Given the complexity and risks inherent in shipping and the storm of resistance against the policy, it would have required courage, decisiveness, financial and managerial capacity and foresight to successfully implement the policy through carefully thought-out programmes with the backing of stakeholders. National Maritime Authority (NMA), now Nigeria Maritime Administration and Safety Agency, represented a direct opposite. Respondents observed that uncertainty regarding the autonomy of NMA and political interference in its operations (92%), conflicting State policies (86%), corruption and patronage system (89%), hostility of the international community on cargo allocation (89.5%) and capacity of, and instability in the leadership of NMA (87%) weighed heavily, and indeed constituted a cog on the implementation process. Other factors that adversely affected implementation included the political culture of the target group (85%), the near absence of notable shipping entrepreneurial class (75%), effective leadership (70%), technical knowledge and skill (70%), lack of commitment and political will (89%), low level of inter-agency cooperation (86%) and paucity of resources (76%). Poor advocacy strategy by the key stakeholders failed to achieve sustained interest, attention and support of government. The implementing agency of the national shipping sector development policy was unable to actualise the objectives of increasing national fleet, enforcing Nigerian carriage rights and developing maritime manpower. Policy action deviated from policy intention and national shipping promotional policies were used for patronage. The entire policy cycle suffered from an interaction deficit among public officials, target groups and the broad stakeholders. 1 results 1
- Indigenous Knowledge (IK) serves as a basic input to sustainable development, perhaps due to its distinctive nature in the knowledge economy. Despite the several benefits of IK to sustainable development, many African nations have lost their cultural and customary knowledge due to inadequate attention of heritage institutions especially libraries, in ensuring that IK constitutes part of their collections. Women are at the forefront of using IK to improve livelihoods in areas such as birth control, food preservation and cultural practices; healthcare and in craft making. However, there is paucity of research on indigenous knowledge preservation on art and craft among women in Nigeria. Using the pragmatic approach embedded within a case study research, the study examined how libraries can partner with indigenous communities on indigenous knowledge preservation. The population of the study comprised librarians, who are heads of libraries in public, academic and national libraries, and women artisans in tie and dye (Adire) making in Abeokuta, Ogun Stater Nigeria. Semi structured interview method was used as data collection techniques. Through the use of purposive sampling technique, ten librarians were' selected while random sampling technique was used to select fifteen women who were considered key informants for the study. Data were analysed using thematic content analysis. The results revealed that indigenous knowledge on adire textiles is not being systematically preserved, but rather retained in family and trade groups. Appropriate recommendations were made based on findings. 1 results 1
- Indigenous knowledge 1 results 1
- Java agent development framework. 1 results 1
- Maritime 1 results 1
- Mobile Agent Technology (MAT), remote method invocation and remote procedure calling are the three most widely used techniques for information storage and retrieval in network environments. Previous studies have shown that MAT provides a more efficient and dynamic approach to information storage and retrieval than others. However, for mobile agents to effectively perform their various tasks, a static agent platform must be installed on the computers. These platforms consume more memory, increase access time and prevent other tasks from running on the computer. Therefore, an alternative framework that will eliminate the problems associated with agent platform is imperative. Consequently, this work was aimed at developing a more efficient framework for mobile agent system deployment as an operating system service. Two classes of existing information retrieval agents were adapted to develop Embedded Mobile Agent (EMA) system. The EMA was embedded into the Windows Operating System (OS) kernel, so that it could run as a service for information retrieval. This was done to eliminate the overheads associated with the middleware provided by agent platforms. The targeted OS were Windows XP, Windows Vista and Windows7. Mathematical models were simulated to assess the performance of EMA by measuring service delay, memory utilisation, fault tolerance, turn around time at fixed bandwidth with varying number of network nodes, and percentage denial of service. Denied services were generated by a random number generator modelled after the Bernoulli Random Variable with 0.1 probability of failure. The model‟s performance was then compared with Java Agent DEvelopment framework (JADE), a widely used open-source existing mobile agent system running on platforms. The implementation was done using four computer systems running the targeted Windows on an existing local area network. Analysis of data was done using descriptive statistics and independent t-test at p = 0.01. The EMA model effectively retrieved information from the network without the agent platform, thereby reducing access times and saving memory, regardless of the version of the Windows OS. The mean service delay for EMA (15067.5 ± 8489.6 ms) was lower than that of JADE (15697.0 ± 8844.5 ms). The embedded agent requires 3 KB of UNIVERSITY OF IBADAN LIBRARY xv memory to run compared to JADE platform requiring 2.83 103 KB. The mean fault tolerance in terms of fault recovery time for EMA was approximately 50% that of JADE (327.8 ± 193.1 ms). The mean turn around time for EMA was 499.7 ± 173.0 ms and JADE was 843.3 ± 321.6 ms consequential to the time JADE spent activating platforms. The mean percentage denial of service for EMA was 14.3 ± 9.8 while JADE was 24.7 ± 18.5. Memory requirements and service delay increased with increasing number of nodes while others show no systematic change. For all the parameters tested, there were significant differences between the two schemes. The embedded mobile agent provided more efficient, dynamic and flexible solution compared to Java Agent DEvelopment framework for distributed information retrieval applications. It could be incorporated into new versions of operating systems as operating system service for universal distributed information retrieval. Keywords: Mobile agent technology, Embedded mobile agent, Operating system service, Java agent development framework. Word count: 497 1 results 1
- Mobile agent technology 1 results 1
- Operating system service, 1 results 1
- Preservation 1 results 1
- Shipping development policy 1 results 1
- Sustainable development goals 1 results 1
- Women 1 results 1
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- UPSpace — University of Pretoria Institutional Repository 6 results 6
- AUC Knowledge Fountain — bepress 4 results 4
- UCTD — University of Cape Town Open Access Repository 4 results 4
- SUNScholar — Stellenbosch University Repository 3 results 3
- KNUSTSpace — Kwame Nkrumah University of Science & Technology (Ghana) 1 results 1