456 research outputs found
Prevalência de doenças palpebrais no ambulatório do serviço de oftalmologia do Hospital Universitário da Universidade Federal de Santa Catarina
Trabalho de Conclusão de Curso - Universidade Federal de Santa Catarina. Curso de Medicina. Dapartamento de Clínica Cirúrgica
Use of HAND terrain descriptor for estimating flood-prone areas in river basins
O mapeamento de áreas inundáveis em uma bacia hidrográfica é fundamental para o gerenciamento do risco de inundações, estratégias mitigadoras e sistemas de previsão e alerta, entre outros benefícios. Uma abordagem para esse mapeamento é com base no descritor do terreno HAND (Height Above Nearest Drainage), derivado diretamente do Modelo Digital de Elevação (MDE), no qual cada pixel apresenta a diferença de elevação desse ponto em relação ao ponto da rede de drenagem ao qual ele se conecta. Considerando a bacia do rio Mamanguape (3.522,7 km²; Paraíba) como área de estudo, esta pesquisa adotou esse método e verificou sua aplicabilidade quanto a cinco aspectos: consideração de uma área mínima variável espacialmente para denotar o início da drenagem; impacto de considerar o MDE sem depressões; avaliação da condiçãohidrostática; efeito de incorporação de uma rede vetorial existente; análise comparativa à morfologia da bacia em termos do perfil longitudinal dos rios. Os resultados indicaram que adotar um valor uniforme de área mínima de contribuição para início da rede de drenagem é uma simplificação que deveria ser evitada, adotando-se a variação espacial de tal parâmetro, que influi no total e na distribuição espacial das áreas inundadas. Além disso, considerar o MDE sem depressões leva a maiores valores do HAND e menor área inundada (diferença variou de 3% a 99%), comparativamente ao MDE com depressões, embora apenas 3,1% dos pixels representem depressões. É recomendado considerar o MDE sem depressões, ao passo que o pré-processamento por incorporação de rede vetorial (stream burning) gera resultados incoerentes quanto à relação do HAND com o padrão morfológico representado no MDE. Concluiuse, ainda, que a estimativa de áreas inundáveis pelo HAND não garante a condição hidrostática, mas esse desacordo abrange uma região de extensão desprezível para fins práticos.The flood hazard mapping in a river basin is crucial for flooding risk management, mitigation strategies, and flood forecasting and warning systems, among other benefits. One approach for this mapping is based on the HAND (Height Above Nearest Drainage) terrain descriptor, directly derived from the Digital Elevation Model (DEM), in which each pixel represents the elevation difference of this point in relation to the river drainage network to which it is connected. Considering the Mamanguape river basin (3,522.7 km²; state of Paraíba, Brazil) as the study location, the present research applied this method and verified it as for five aspects: consideration of a spatially variable minimum drainage area for denoting the river drainage initiation; the impact of considering a depressionless DEM; evaluation of hydrostatic condition; effect of incorporating an existing river vector network; and comparative analysis of basin morphology regarding longitudinal river profiles. According to the results, adopting a uniform minimum drainage area for the river network initiation is a simplification that should be avoided, using a spatially variable approach, which influences the amount and spatial distribution of flooded areas. Additionally, considering the depressionless DEM leads to higher values of HAND and to a smaller flooded area (difference ranging between 3% and 99%), when compared with the use of DEM with depression, despite 3.1% of the pixels representing depressions. The use of the depressionless DEM is recommended, whereas the DEM pre-processing by incorporating a vector network (stream burning) generates dubious results regarding the relation between HAND and the morphological pattern presented in the DEM. Moreover, the estimation of flooded areas based on HAND does not guarantee the hydrostatic condition, but this disagreement comprises a negligible area for practical purposes
Birdwatching and birding by ear : An accessible and inclusive tourism proposal for the city of Lagos
Accessible tourism goes beyond the physical dimension, associating services with sensory experiences, considering the specificities of people with disabilities. Birdwatching and birding by ear can be a good example of an activity that links visiting new places with outdoor activities. It can bring positive outcomes to the visitors through the benefits of being outside and connecting with nature, consequently, with ecosystem services; moreover, it can be an inclusive and accessible activity. Urban areas are increasing all over the world. In a sustainable context, green and blue infrastructures have received increasing attention in urban strategies. They create new habitats, contributing to urban biodiversity and, at the same time, providing many ecosystem services that guaranty well-being for the communities. The main goal of this study was to inventory and characterize the bird community in the urban area of Lagos, a touristic city in the South of Portugal. Birdwatching and birding by ear in the city could have the potential for an inclusive and accessible touristic activity. Three different sites along the city were sampled and a total of 35 species were sighted and identified. Some of these species could be identified through specific websites which describe the bird and give the respective bird singing sound. Most species identified were migratory, which increases the potential to sight different species through the year. The three sites' location has high potential to be integrated into accessible walking routes or tours, which increases the relevance of this study.Peer Reviewe
Marketing político: a utilização dos social media pelas juventudes partidárias
Mestrado em MarketingCom a afirmação dos meios de comunicação de massas a comunicação entre os indivíduos alterou-se, e o Marketing Político teve que se adaptar às novas necessidades. Após o desenvolvimento da Internet a comunicação política começou a ser mais próxima dos cidadãos, e a preocupação na produção e qualidade dos conteúdos a partilhar aumentou.
Com a diminuição da participação política os profissionais de comunicação política tiveram que criar estratégias de comunicação, por um lado para a tornar mais informal e próxima dos eleitores, e por outro para diminuir a apatia política. A camada mais jovem da população é a que maior afastamento da política revela pelo que é também a que maior atenção e incentivo necessita. As novas tecnologias da informação e comunicação desempenham um importante papel nesta tentativa de aproximação dos cidadãos à política.
Com a emancipação da web 2.0. vive-se na era da instantaneidade e as redes sociais tornaram-se uma constante na vida dos indivíduos. Assim, além dos meios de comunicação tradicionais, ou sites institucionais dos partidos as redes sociais tornaram-se um dos principais veículos de comunicação e aproximação entre os atores políticos.
Compreender os objetivos delineados, as estratégias utilizadas e as perspetivas de futuro, no que respeita à utilização dos social media enquanto ferramenta de comunicação política, afigura-se assim da maior importância para o desenvolvimento do Marketing Político.The establishment of mass media led to changes in how individuals communicate, meaning that Political Marketing had to adapt to the new needs and demands. With the Internet development, political communication began to be closer to citizens and a direct consequence was an increase of content quality to be shared, as well as an extra care associated with its production.
With the lack of political participation and confidence in political institutions, political communication professionals had to come up with communication strategies to make it more informal and closer to the electorates in one hand, and to decrease political apathy in the other. The youngest layer of the population is the one that shows a bigger estrangement towards political issues, intensifying the need to encourage their attention and motivation. The new information and communication technologies play an important role in this attempt to bring citizens closer to politics, in particular regarding young adults.
With the emancipation of web 2.0 and the era of instantaneity, social media have become a constant in individual?s lives. They are one of the main communication vehicles between political actors and the electorate, aside from institutional party websites and traditional communication media.
Understanding the proposed objectives, eventual strategies which have been put to use, as well as future perspectives in terms of social media usage as a political communication tool, seem to be of a major importance to the Political Marketing development.N/
Milk production as an indicator of drought vulnerability of cities located in the brazilian semiarid region
Several spectral indices have been used to estimate droughts, however, these indicators only give evidence of a dry spell leaving out its impacts on significant economic activities performed in a given region. In this context, livestock breeding in one of the most important activities to analyze in the Brazilian semiarid region. The aim of this study was to evaluate the relationship between the drought indices, obtained through remote sensory devices, and annual milk production (2004 – 2014), identifying the most affected cities by the drought and were considered the most vulnerable and in need of special attention during dry periods. In order to analyze the data, the hierarchical grouping technique and correlation analyses between milk production and VCI - Vegetation Condition Index, TCI - Temperature Condition Index, VHI - Vegetation Health Index, PCI - Precipitation Condition Index and SDCI - Scaled Drought Condition indices were used. The intense correlation between milk production and the drought indices may be related to the dependency of the cities’ economies on natural resources. On the other hand, the diversification of the cities’ economic activities may enable access to various resources and drought vulnerability reductioninfo:eu-repo/semantics/publishedVersio
Reestruturação universitária e inclusão na Universidade de Brasília : a experiência do Reuni Indígena
Monografia (graduação)—Universidade de Brasília, Instituto de Ciências Sociais, Departamento de Antropologia, 2014.Esse trabalho trata do projeto Reuni Indígena, intitulado “Monitorias integradas para estudantes indígenas: abordagens interdisciplinares como prática pedagógica de aprendizado”, que teve duração de 2011 a 2014, na Universidade de Brasília – UnB. Contando com a participação de estudantes indígenas e não-indígenas, seus objetivos foram o acolhimento, apoio acadêmico e discussões acerca da política de inclusão voltada para estudantes indígenas oriundos do Convênio Fundação Universidade de Brasília – FUB e Fundação Nacional do Índio – FUNAI. Assim, reflito sobre o projeto, sua proposta, sua prática, alguns conflitos que emergiram nesse processo e seus impactos. O Reuni Indígena também foi um espaço de convívio e aprendizado sobre a inclusão étnica e como ela vem sendo implementada na UnB. Dedico-me a descrever e analisar esse processo e a relação entre sujeitos, leis, instituições, práticas, sentimentos e sentidos envolvidos nessa ampla teia de relações. ________________________________________________________________________________ ABSTRACTThis work is about the project Reuni Indígena, entitled: “Integral tutoring for indigenous students: interdisciplinary approach as a pedagogical learning practice”, which lasted from 2011 to 2014, at the University of Brasília. It counted with the participation of both indigenous and non-indigenous students, and its aims were to welcome the new indigenous students, as well as to give academic support and to discuss the concerns related to the affirmative action for students that accessed the Convênio Fundação Universidade de Brasília – FUB e Fundação Nacional do Índio – FUNAI. My purpose is to reflect about the project, its proposal, its practice, some of the conflicts that emerged during the process and its impacts. The Reuni Indígena was also a place of interaction and apprenticeship about ethnic inclusion and how it has been implemented by the UnB. I dedicate myself to describe and analyse this process and the relationship between individuals, laws, institutions, practices, feelings and meanings enwrapped in this broad web of relations
Anticancer activity of rutin and its combination with ionic liquids on renal cells
The renal cell carcinoma (RCC) is the most common type of kidney cancer. Identifying novel and more effective therapies, while minimizing toxicity, continues to be fundamental in curtailing RCC. Rutin, a bioflavonoid widely found in nature, has shown promising anticancer properties, but with limited applicability due to its poor water solubility and pharmacokinetics. Thus, the potential anticancer effects of rutin toward a human renal cancer cell line (786-O), while considering its safety in Vero kidney cells, was assessed, as well as the applicability of ionic liquids (ILs) to improve drug delivery. Rutin (up to 50 µM) did not show relevant cytotoxic effects in Vero cells. However, in 786-O cells, a significant decrease in cell viability was already observed at 50 µM. Moreover, exposure to rutin caused a significant increase in the sub-G1 population of 786-O cells, reinforcing the possible anticancer activity of this biomolecule. Two choline-amino acid ILs, at non-toxic concentrations, enhanced rutin's solubility/loading while allowing the maintenance of rutin's anticancer effects. Globally, our findings suggest that rutin may have a beneficial impact against RCC and that its combination with ILs ensures that this poorly soluble drug is successfully incorporated into ILs-nanoparticles hybrid systems, allowing controlled drug delivery.Fundação para a Ciência e Tecnologia (FCT, Portugal): UID/DTP/04567/2019/ UIDB/00100/2020/ UIDB/04565/2020. ALIES grant PADDIC 2018-2019info:eu-repo/semantics/publishedVersio
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