Cloudbus Toolkit for Market-Oriented Cloud Computing

This keynote paper: (1) presents the 21st century vision of computing and identifies various IT paradigms promising to deliver computing as a utility; (2) defines the architecture for creating market-oriented Clouds and computing atmosphere by leveraging technologies such as virtual machines; (3) provides thoughts on market-based resource management strategies that encompass both customer-driven service management and computational risk management to sustain SLA-oriented resource allocation; (4) presents the work carried out as part of our new Cloud Computing initiative, called Cloudbus: (i) Aneka, a Platform as a Service software system containing SDK (Software Development Kit) for construction of Cloud applications and deployment on private or public Clouds, in addition to supporting market-oriented resource management; (ii) internetworking of Clouds for dynamic creation of federated computing environments for scaling of elastic applications; (iii) creation of 3rd party Cloud brokering services for building content delivery networks and e-Science applications and their deployment on capabilities of IaaS providers such as Amazon along with Grid mashups; (iv) CloudSim supporting modelling and simulation of Clouds for performance studies; (v) Energy Efficient Resource Allocation Mechanisms and Techniques for creation and management of Green Clouds; and (vi) pathways for future research.Comment: 21 pages, 6 figures, 2 tables, Conference pape

The Spanish version of the Psychiatric/Mental health clinical placement survey and an assessment of Spanish student attitudes towards mental health

Introduction: The encouragement of positive attitudes towards mental health is necessary in order to improve the quality of healthcare assistance. The attitudes of nursing students towards mental health are unknown, and there are no validated scales for their assessment. Aims: To adapt the Psychiatric/Mental Health Clinical Placement Survey (PMHCPS) to Spanish and examine its psychometric properties; to describe the attitudes of nursing students towards the mental health field. Method: Confirmatory factorial analysis (CFA), internal consistency and construct validity were performed. An assessment of the students' attitudes was also conducted. Results: The CFA showed appropriate fit, and total internal consistency was adequate. With regard to construct validity, knowledge was associated with practicum mark. The students achieved above mid‐range scores for all subscales, except negative stereotypes. Gender differences were observed. Discussion: The PMHCPS, translated to Spanish, enables the students' attitude towards the mental health field to be assessed, thus identifying those areas of student attitudes and competencies requiring improvement. Implications for practice: To provide Spanish nursing faculties with access to a scale, with which to assess changes in student attitudes. The assessment results may then be utilized to formulate teaching methods in order to improve the quality of health care the students might provide as future nursing professionals

Measuring and explaining the willingness to pay for forest conservation: evidence from a survey experiment in Brazil

Recent research suggests that there is substantial public support (including willingness to pay) for forest conservation. Based on a nationwide survey experiment in Brazil (N = 2500) the largest and richest of the world's tropical developing countries, we shed new light on this issue. To what extent does the public in fact support forest conservation and what factors are influencing support levels? Unlike previous studies, our results show that the willingness to pay for tropical forest conservation in Brazil is rather low. Moreover, framing forest conservation in terms of biodiversity protection, which tends to create more local benefits, does not induce more support than framing conservation in terms of mitigating global climate change. The results also show that low levels of trust in public institutions have a strong negative impact on the public's willingness to pay for forest conservation, individually and/or via government spending. What could other (richer) countries do, in this context, to encourage forest conservation in Brazil and other tropical developing countries? One key issue is whether prospects of foreign funding for forest conservation are likely to crowd out or, conversely, enhance the motivation for domestic level conservation efforts. We find that prospects of foreign funding have no significant effect on willingness to pay for forest conservation. These findings have at least three policy implications, namely, that the Brazilian public's willingness to pay for forest conservation is very limited, that large-scale international funding is probably needed, and that such funding is unlikely to encourage more domestic effort, but is also unlikely to crowd out domestic efforts. Restoring public trust in the Brazilian government is key to increasing public support for forest conservation in Brazil

Desempenho das cultivares de algodoeiro avaliadas no Estado de Goiás, nas safras 2001/02 e 2002/03.

Características das cultivares do algodãobitstream/CNPA/19626/1/COMTEC204.PD

Classificação dos macrohabitat do Pantanal Brasileiro: atualização para políticas públicas e manejo de áreas protegidas.

A área úmida do Pantanal tem sido objeto constante de pesquisas devido ao seu ecossistema complexo, com grande quantidade e diversidade de paisagens. Conhecer os macrohabitat encontrados nas áreas que integram o Pantanal proporciona um arcabouço considerável de informações, que possibilitam auxiliar nos processos de tomada de decisão para a sua manutenção e conservação, a exemplo do Projeto de Lei Federal do Pantanal n. 750/2011. A finalidade desta pesquisa foi identificar e classificar as unidades funcionais, subclasses e macrohabitat que compõem o Pantanal nas regiões mato-grossenses e sul-mato-grossenses. Quanto às unidades funcionais, foram apontadas as áreas permanentemente aquáticas; áreas periodicamente aquáticas, com predominância da fase aquática; áreas periodicamente terrestres; áreas pantanosas permanentemente inundadas; áreas permanentemente terrestres e áreas antropogênicas. Também foram identificadas dezesseis subclasses e setenta e quatro macrohabitat, ampliando as informações publicadas por Nunes de Cunha e Junk (2014). Os macrohabitat, que representam o bioma Pantanal, foram melhor descritos com o objetivo precípuo de dar suporte científico, visando a efetiva perpetuidade das áreas úmidas pantaneiras com pouca regulamentação específica, bem como o desenvolvimento de ações sociais, políticas e públicas que promovam a proteção e o manejo sustentável das AUs

Characterization of New Virulence Factors Involved in the Intracellular Growth and Survival of Burkholderia pseudomallei.

Burkholderia pseudomallei, the causative agent of melioidosis, has complex and poorly understood extracellular and intracellular lifestyles. We used transposon-directed insertion site sequencing (TraDIS) to retrospectively analyze a transposon library that had previously been screened through a BALB/c mouse model to identify genes important for growth and survival in vivo. This allowed us to identify the insertion sites and phenotypes of negatively selected mutants that were previously overlooked due to technical constraints. All 23 unique genes identified in the original screen were confirmed by TraDIS, and an additional 105 mutants with various degrees of attenuation in vivo were identified. Five of the newly identified genes were chosen for further characterization, and clean, unmarked bpsl2248, tex, rpiR, bpsl1728, and bpss1528 deletion mutants were constructed from the wild-type strain K96243. Each of these mutants was tested in vitro and in vivo to confirm their attenuated phenotypes and investigate the nature of the attenuation. Our results confirm that we have identified new genes important to in vivo virulence with roles in different stages of B. pseudomallei pathogenesis, including extracellular and intracellular survival. Of particular interest, deletion of the transcription accessory protein Tex was shown to be highly attenuating, and the tex mutant was capable of providing protective immunity against challenge with wild-type B. pseudomallei, suggesting that the genes identified in our TraDIS screen have the potential to be investigated as live vaccine candidates