Cloud Computing is the new trend in sharing resources, sharing and managing data and performing computations on a shared resource via the Internet. However, with the constant increase in demand, these resources are insufficient. So users often use another network in conjunction with the current one. All these networks accom- plish the goal of providing the user with a virtual or physical machine. However, to achieve the result, virtual machine users have to maintain multitude credentials and follow a different process for each network. In this thesis, we focus on SAGEFed, a product that enables a user to use the same credentials and commands to reserve the resources on two different federated clouds, i.e., SAVI and GENI. As a part of SAGEFed, the user can acquire or reserve resources on the clouds with the same API. The same service also manages the credentials, so they do not have to manage different credentials while acquiring resources. Furthermore, SAGEFed demonstrates that any cloud that has some form of client tool can be easily integrated. / Graduate

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Submitted by João Alberto Zago Bevenuto null (jbevenuto@yahoo.com.br) on 2018-03-22T21:46:10Z No. of bitstreams: 1 USO DE ÍNDICES DE REFLECTÂNCIA FOLIAR NO MONITORAMENTO DO PATOSSISTEMA Microcyclus ulei x SERINGUEIRA.pdf: 4476483 bytes, checksum: a17aef49bfab7709a3a8f6520055f96b (MD5) / Approved for entry into archive by Maria Lucia Martins Frederico null (mlucia@fca.unesp.br) on 2018-03-23T11:05:39Z (GMT) No. of bitstreams: 1 bevenuto_jaz_dr_botfca.pdf: 4389533 bytes, checksum: 8af5d4739088a6f44c131d62d3407908 (MD5) / Made available in DSpace on 2018-03-23T11:05:39Z (GMT). No. of bitstreams: 1 bevenuto_jaz_dr_botfca.pdf: 4389533 bytes, checksum: 8af5d4739088a6f44c131d62d3407908 (MD5) Previous issue date: 2017-12-15 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / O maior problema fitossanitário na heveicultura brasileira é a doença conhecida por mal das folhas, causada pelo fungo Microcyclus ulei, cujos sintomas ocorrem nas folhas jovens, causando intensas desfolhas, diminuindo a produção de látex e até mesmo a morte em plantas muito suscetíveis. A espécie Hevea brasiliensis possui um hábito deciduifólio completo que é um caráter importante, ou seja, o desfolhamento uniforme proporciona a recuperação da copa com folhas sadias e a redução do inóculo de patógenos que são descartados com as folhas velhas, onde as estruturas reprodutivas estão localizadas. Os objetivos deste trabalho foram: utilizar ferramentas de sensoriamento remoto para confrontar o efeito das variáveis climáticas em diferentes períodos do ano sobre interferência do mal das folhas em seis anos comparando o avanço da doença com os índices de vegetação, Índice de Vegetação com Diferença Normalizada (NDVI), Índice de Vegetação Ajustado para os Efeitos do Solo (SAVI) e Índice de Área Foliar (IAF), calculados para o período de cada ano estudado, analisar o efeito deciduifólio natural ou ocorrência do mal das folhas; e verificar a troca de folhas dos clones de seringueira em estudo comparando com a fenologia. A área utilizada para o estudo localiza-se no município de Registro, Estado de São Paulo, Brasil, na Fazenda Umuarama com plantio monoclonal de seringueira, foram avaliados seis clones diferentes: IAN 873, IAN 717; RRIM 600, Fx 3864, Fx 2261 e Fx 3844, por meio das imagens do satélite Landsat 5 utilizado os índices de vegetação NDVI, SAVI e IAF. Foram utilizados para análise estatística modelos lineares generalizados com a distribuição gama e função de ligação logarítmica tendo como fatores clones e índices de reflectância. Os modelos foram ajustados incluindo-se as covariáveis continuas mensurada no campo: folhas caídas totais e folhas caídas doentes Esses modelos foram comparados através do critério de informação de Akaike corrigido – AICC, para identificar o melhor modelo, verificada mediante desvios por graus de liberdade (scale deviance). Para comparações entre fatores foi utilizado foi o teste de Tukey–Kramer. Realizou a correlação de Spearman entre os índices de vegetação: NDVI, SAVI e IAF. Concluiu-se que as ferramentas de sensoriamento remoto são aplicáveis nos efeitos que as variações climáticas sobre a influência da doença mal das folhas. Os índices NDVI, SAVI e IAF foram significativos para a queda foliar da seringueira. Verificou também através dos índices a fenologia da seringueira nos períodos de troca de folhas: desfolha, reenfolha e densidade de copa. Ocorreu interação estatística significativa sobre o efeito dos clones, sua fenologia e índices de vegetação nos pixels da imagem. Obteve-se bom ajuste dos modelos dos índices com as imagens de satélites e as covariáveis dos dados de campo. A correlação de Spearman mostrou-se significativa entre os índices por valores dos pixels. Os índices são ferramentas de grande valia para estudos e análises sobre plantios florestais. / The biggest phytosanitary problem in Brazilian heveculture is the disease known as leaf blight caused by the fungus Microcyclus ulei. Whose symptoms occur in young leaves, causing severe defoliation, reducing the production of latex and even the death in susceptible plants. Rubber tree has a deciduous habit which is an important character. Uniform defoliation of clones provides a reduction in the interior of pathogens, whose locations to reproduction occur in the old leaves. The objectives of this work were: Using remote sensing tools to compare the effect of climatic variables in different periods of the year on leaf mischief interference in six years comparing the disease progression with Normalized Difference Vegetation Index (NDVI), Soil Adjusted Vegetation Index (SAVI) and Leaf Area Index (LAI) vegetation indices, calculated for the period of each year studied, verifying the natural deciduous effect or occurrence of leaf blight; Estimate an exchange of leaves of the rubber tree clones under study, comparing them with phenology. The area used for the study is located in the municipality of Registro, São Paulo State, Brazil, at Umuarama Farm with monoclonal rubber plantation, IAM 873, IAN 717; RRIM 600, Fx 3864, Fx 2261 and Fx 3844, using Landsat 5 satellite images used in NDVI, SAVI and IAF vegetation indices. They were used for statistical analysis generalized linear model with logarithmic range distribution and binding function having as clones reflectance factors and indices. Set the same models including whether the continuous covariates measured in the field: total fallen leaves sick and fallen leaves. Compared these models through the Akaike information criterion corrected - AICC to identify the best model, verified through the deviations by degrees of freedom (scale deviance). Was compared between factors was used was the Tukey-Kramer test. Spearman correlation was performed between the vegetation indexes: NDVI, SAVI and LAI. It was concluded that remote sensing tools are applicable in the effects that climatic variations on the influence of evil leaf disease. The NDVI, SAVI and IAF indexes showed the leaf fall effect of the rubber tree. Also verified through the indices the phenology of the rubber tree in the periods of leaf change: defoliation, re-foliage and cup density. There was a statistically significant interaction on the effect of clones’ phenology and vegetation index in the pixels of the image. It obtained good adjustment of the models of the contents with the satellite images and field data covariates. The Spearman correlation coefficient was significant between the indexes through the values of the pixels. The indices are valuable tools for studies and analyzes on forest plantations.

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Land degradation, a phenomenon referring to (drought) in arid, semi-arid and dry sub-humid regions as a result of climatic variations and anthropogenic activities most especially in the semi-arid lands of Sudan, where vast majority of the rural population depend solely on agriculture and pasture for their daily livelihood, the ecological pattern had been greatly influenced thereby leading to loss of vegetation cover coupled with climatic variability and replacement of the natural tree composition with invasive mesquite species. The principal aim of this study is to quantitatively examine the vigour of vegetation in Sudan through different vegetation indices. The assessment was done based on indicators such as soil adjusted vegetation index (SAVI). Cloud free multi-spectral remotely sensed data from LANDSAT imagery for the dry season periods of 1984 and 2009 were used in this study. Results of this study shows conversion of vegetation to other land use type. In general, an increase in area covered by vegetation was observed from the NDVI results of 2009 which is a contrast of that of 1984. The results of the vegetation indices for NDVI in 1984 (vegetated area) showed that about 21% was covered by vegetation while 49% of the area were covered with vegetation in 2009. Similar increase in vegetated area were observed from the result of SAVI. The decrease in vegetation observed in 1984 is as a result of extensive drought period which affects vegetation productivity thereby accelerating expansion of bare surfaces and sand accumulation. Although, increase in vegetated area were observed from the result of this study, this increase has a negative impact as the natural vegetation are degraded due to human induced activities which gradually led to the replacement of the natural vegetation with invasive tree species. The results of the study shows that NDVI perform better than by SAVI.

Per pastaruosius 5-10 metų Lietuvos kultūrinė rinka susiduria su kaip niekad daug probleminio pobūdžio uždavinių. Tai kultūrinės veiklos ir verslo jungčių bei kultūrinių mainų su kitomis Europos ir pasaulio šalimis pasekmė, kuri smarkiai įtakoja Lietuvos muzikinį gyvenimą. Šiame tiriamajame darbe pristatoma asmeninės vadybos tema, atskleidžiant jos vaidmenį profesionalių muzikos atlikėjų veikloje. Iškeliama dviejų profesijų – muzikos atlikėjo ir vadybininko - jungties, vaidmenų pasiskirstymo problematika. Analizuojami giluminių interviu, anketinės apklausos duomenys, Lietuvos muzikos atlikėjų bei kūrėjų praktikos Lietuvoje ir Europos šalyse, apžvelgiami literatūros šaltiniai šia tema, pristatomos vadybininko pareigybės, agentų darbo savitumai. Darbo tikslas – atskleisti asmeninės vadybos vaidmens profesionalių muzikos atlikėjų veikloje reikšmingumą. Šiam tikslui pasiekti išsikelti uždaviniai: 1. pristatyti asmeninę vadybą teoriniu aspektu – apžvelgti literatūrą asmeninės vadybos tema, išskirti pagrindinius asmeninės vadybos dėsnius; 2. apžvelgti vadybos ir muzikinių įgūdžių derinimo aktualumo apraiškas Lietuvos muzikinėje rinkoje; 3. išaiškinti vadybininko pareigybes, agento darbo savitumą; 4. pristatyti Lietuvos menininkų praktikas, taikant asmeninės vadybos žinias profesionalaus muzikos atlikėjo, kūrėjo veikloje Lietuvoje ir Europos šalyse; 5. pateikti prielaidas, optimalaus santykio tarp vadybos ir meno įgūdžių modelio sukūrimui. Remiantis atliktų tyrimų medžiaga... [toliau žr. visą tekstą] / The Lithuanian cultural market, as never before, has faced many various problematic tasks over last five to ten years. This is a result of ties between cultural activities and businesses as well as cultural exchange with countries in Europe and elsewhere in the world, which is considerably influencing the musical life in Lithuania. This research presents the subject of self-management demonstrating its role in the activities of professional music performers. The issues of the link and the role division between two professions – music performer and manager – are raised. The data obtained from in-depth interviews and questionnaires are analysed, as well as the experience Lithuanian music performers and creators gained inside the country and in European countries; literature about the subject is surveyed; the job of the manager and the peculiarities of the agents’ work are presented. The goal of the study is to demonstrate the importance of the role of self-management in the activities of professional music performers. To achieve this goal the following tasks were undertaken: 1. To present self-management from the theoretical aspect – to survey literature about the subject, and to formulate the main laws of self-management; 2. To survey the importance of the conformity between the expression of management and musical skills in the Lithuanian musical market; 3. To explain the job of management and the peculiarities of the agents work; 4. To present the experience applying... [to full text]

The disruptive nature of innovations and technological advancements present potentially huge benefits, however, it is critical to take caution because they also come with challenges. This author holds fast to the school of thought which suggests that every organisation or society should properly evaluate innovations and their attendant challenges from a strategic perspective, before adopting them, or else could get blindsided by the after effects. Big Data is one of such innovations, currently trending within industry and academia. The instinctive nature of Organizations compels them to constantly find new ways to stay ahead of the competition. It is for this reason, that some incoherencies exist in the field of big data. While on the one hand, we have some Organizations rushing into implementing Big Data Projects, we also have in possibly equal measure, many other organisations that remain sceptical and uncertain of the benefits of "Big Data" in general and are also concerned with the implementation costs. What this has done is, create a huge focus on the area of Big Data Implementation. Literature reveals a good number of challenges around Big Data project implementations. For example, most Big Data projects are either abandoned or do not hit their expected target. Unfortunately, most IS literature has focused on implementation methodologies that are primarily focused on the data, resources, Big Data infrastructures, algorithms etc. Rather than leaving the incoherent space that exists to remain, this research seeks to collapse the space and open opportunities to harness and expand knowledge. Consequently, the research takes a slightly different standpoint by approaching Big Data implementation from a Strategic Perspective. The author emphasises the fact that focus should be shifted from going straight into implementing Big Data projects to first implementing a Big Data Strategy for the Organization. Before implementation, this strategy step will create the value proposition and identify deliverables to justify the project. To this end, the researcher combines an Alignment theory, with Digital Business Strategy theory to create a Big Data Strategy Framework that Organisations could use to align their business strategy with the Big Data project. The Framework was tested in two case studies, and the study resulted in the generation of the strategic Big Data Goals for both case studies. This Big Data Strategy framework aided the organisation in identifying the potential value that could be obtained from their Big Data project. These Strategic Big Data Goals can now be implemented in Big data Projects.

Content Centric Networking (CCN) is a novel networking architecture in which communication is resolved based on names, or descriptions of the data transferred instead of addresses of the end-hosts. While CCN demonstrates many promising potentials, its current implementation suffers from severe performance limitations. In this thesis we study the performance and analyze the bottleneck of the existing CCN prototype. Based on the analysis, a variety of design alternatives are proposed for realizing high performance content centric networking over virtual infrastructure. Preliminary implementations for two of the approaches are developed and evaluated on Smart Applications on Virtual Infrastructure (SAVI) testbed. The evaluation results demonstrate that our design is capable of providing scalable content centric routing solution beyond 1Gbps throughput under realistic traffic load.

Content Centric Networking (CCN) is a novel networking architecture in which communication is resolved based on names, or descriptions of the data transferred instead of addresses of the end-hosts. While CCN demonstrates many promising potentials, its current implementation suffers from severe performance limitations. In this thesis we study the performance and analyze the bottleneck of the existing CCN prototype. Based on the analysis, a variety of design alternatives are proposed for realizing high performance content centric networking over virtual infrastructure. Preliminary implementations for two of the approaches are developed and evaluated on Smart Applications on Virtual Infrastructure (SAVI) testbed. The evaluation results demonstrate that our design is capable of providing scalable content centric routing solution beyond 1Gbps throughput under realistic traffic load.