Oak Lea Wildlife Management Area

The South Carolina Department of Natural Resources provides area maps of regions of the state that identify agency-owned and managed Wildlife Management Areas. This is a map of the Oak Lea Wildlife Management Area.

Cork oak transplant: A new reality? A Physiological Approach to maximize sucess rate.

Cork oak tree (Quercus suber L.), in Portugal, is considered the national tree and have special demands and legal protection when dealing with silviculture management (pruning, debarking, thinning). Being a species of slow growth, cork oak transplanting procedures can be a valuable asset either from the economic or ecological rationales to relocate trees, re-populate areas affected by high tree mortality, increase tree density to control erosion on montado ecosystems or landscape design. This study focuses the impacts and physiological responses of ten juvenile rain fed cork oak trees (with diameter at breast height between 6 and 16cm), when subjected to transplant operations. The work was conducted in a cork oak woodland experimental plot at the campus of the University of Évora (SW Portugal), during the year of 2015. Tree’s transplants were performed with a truck-mounted hydraulic spade transplanter coupled with a proposed methodology to maximize tree survival rates, addressing techniques to limit canopy transpiration and to improve root systems prior to transplant. Tree ecophysiological indicators (sap flow, leaf water potentials and stomatal conductance) were monitored comprising the periods before and after transplant operations, and water stress avoidance practices were established to promote post-transplant tree status recovery, including irrigation to match average daily accumulated sap flow. Transplant operations were considered successful when the tree's water uptake inferred from sap flow exhibited a high correlation with solar radiation and returned to its undisturbed or pre-transplant water potential gradients in the following 2 to 3 weeks. The post-transplant tree nourishment follow up included permanent sap flow measurements and identified the time elapsed after transplantation from which the tree recovers its normal transpiration thresholds and response. Our results suggest that by following the proposed methodology the sampled cork oak trees exhibited a transplant success rate of 90%.

Avaliação sensorial de cachaça

The hedonic level of commercial cachaças, was evaluated by consumers and by a tasters. The results of sensorial methods analyzed trough Principal Components Analysis, Hierarchical Cluster Analysis and the Pearson linear correlation indicated that the best classified cachaças were produced in copper stills and aged in oak casks. By contrast the worst classified exhibited as the main features be not aged and high alcohol percentage. The index of preference is positively correlated with the intensity of yellow color, wood flavor, sweetness and fruit aroma. There is a negative preference correlation with the acidity, the taste of alcohol and bitterness.

Effect of Toasting Intensity at Cooperage on Phenolic Compounds in Acacia (Robinia pseudoacacia) Heartwood

The phenolic composition of heartwood from Robinia pseudoacacia, commonly known as false acacia, before and after toasting in cooperage was studied by HPLC-DAD and HPLC-DAD/ESI-MS/MS. A total of 41 flavonoid and nonflavonoid compounds were identified, some tentatively, and quantified. Seasoned acacia wood showed high concentrations of flavonoid and low levels of nonflavonoid compounds, the main compounds being the dihydroflavonols dihydrorobinetin, fustin, tetrahydroxy, and trihydroxymethoxy dihydroflavonol, the flavonol robinetin, the flavanones robtin and butin, and a leucorobinetinidin, none of which are found in oak wood. The low molecular weight (LMW) phenolic compounds present also differed from those found in oak, since compounds with a beta-resorcylic structure, gallic related compounds, protocatechuic aldehyde, and some hydroxycinnamic compounds are included, but only a little gallic and ellagic acid. Toasting changed the chromatographic profiles of extracts spectacularly. Thus, the toasted acacia wood contributed flavonoids and condensed tannins (prorobinetin type) in inverse proportion to toasting intensity, while LMW phenolic compounds were directly proportional to toasting intensity, except for gallic and ellagic acid and related compounds. Even though toasting reduced differences between oak and acacia, particular characteristics of this wood must be taken into account when considering its use in cooperage: the presence of flavonoids and compounds with beta-resorcylic structure and the absence of hydrolyzable tannins.

Conteúdos de ensino da educação física escolar : da produção acadêmica às narrativas docentes

Possui como objetivo compreender a relação entre os conteúdos de ensino com a especificidade da Educação Física. Se caracteriza pela abordagem plurimetodológica qualitativa/quantitativa e foi delineada em três capítulos que dialogam entre si, considerando a natureza das fontes estudadas e os pressupostos teórico-metodológicos assumidos. Do tipo “estado do conhecimento”, o primeiro capítulo investiga as produções acadêmicas que versam sobre os conteúdos de ensino da Educação Física escolar, no período de 1981 a 2010. Os 146 artigos mapeados encontram-se distribuídos em 14 periódicos, analisados por meio de indicadores bibliométricos (MUGNAINI; CARVALHO; CAMPANATTI-OSTIZ, 2006). A pesquisa indica os autores que se constituem como referência numérica na área e sua relação com os Programas de Pós-Graduação, suas linhas de estudo e os grupos de pesquisa que oferecem suporte teórico-metodológico. O segundo capítulo, de natureza quali-quantitativa, discute a opinião de 266 professores de Educação Física do Estado do Espírito Santo sobre os processos de seleção e sistematização dos conteúdos de ensino, expressos em um questionário elaborado com perguntas fechadas e semiabertas. Dá visibilidade às aproximações dos conteúdos com a cultura local e às implicações das lógicas de escolarização na escolha do que e quando ensinar. O terceiro capítulo se caracteriza por ser uma pesquisa narrativa (CERTEAU, 2002; RIBEIRO; SOUZA, 2010) e evidencia o modo como os professores de Educação Física trabalham com os conteúdos de ensino. Possui como colaboradores 14 docentes de Educação Física atuantes na Educação Básica da Microrregião Metropolitana do Estado do Espírito Santo e, para a produção das fontes, utiliza uma entrevista semiestruturada, um grupo focal e três a cinco narrativas individuais orais. Os professores explicitam os saberes privilegiados por essa disciplina como aqueles incorporados pela imbricação do Eu na situação e pela distanciação-regulação (CHARLOT, 2000). Ao dar visibilidade aos projetos de ensino desenvolvidos pelos professores, a pesquisa apresenta possibilidades de se constituir uma integração curricular, por meio de temas que perpassam diferentes disciplinas

Avaliação da dose absorvida na tiróide, em cintigrafias com 123I e Na99mTcO4 utilizando modelos biocinéticos e métodos de Monte Carlo

Mestrado em Radiações Aplicadas às Tecnologias da Saúde. Área de especialização: Protecção contra Radiações

Green production of zero-valent iron nanoparticles using tree leaf extracts

The interest in zero-valent iron nanoparticles has been increasing significantly since the development of a green production method in which extracts from natural products or wastes are used. However, this field of application is yet poorly studied and lacks knowledge that allows the full understanding of the production and application processes. The aim of the present work was to evaluate the viability of the utilization of several tree leaves to produce extracts which are capable of reducing iron(III) in aqueous solution to form nZVIs. The quality of the extracts was evaluated concerning their antioxidant capacity. The results show that: i) dried leaves produce extracts with higher antioxidant capacities than non-dried leaves, ii) the most favorable extraction conditions (temperature, contact time, and volume:mass ratio) were identified for each leaf, iii) with the aim of developing a green, but also low-cost,method waterwas chosen as solvent, iv) the extracts can be classified in three categories according to their antioxidant capacity (expressed as Fe(II) concentration): >40 mmol L−1; 20–40 mmol L−1; and 2–10 mmol L−1; with oak, pomegranate and green tea leaves producing the richest extracts, and v) TEManalysis proves that nZVIs (d=10–20 nm) can be produced using the tree leaf extracts.

Revestimento de pisos em madeira para interiores

Dissertação para a obtenção do grau de Mestre em Engenharia Civil

Assessing the balance between biodiversity conservation and coastal and estuarine management of the Sado Estuary Natural Reserve, Portugal, using BIO-SAFE

Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau de Mestre em Engenharia do Ambiente, perfil de Engenharia Ecológica

Dynamics of cork mycobiota throughout stopper manufacturing process: from diversity to metabolite

Dissertation presented to obtain the Ph.D degree in Biology

Geospatial assessment of pest-induced forest damage through the use of UAV-bases NIR imaging and Gi-technology

Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Geospatial Technologies.

'Como seiva viva em tronco forte'. A agência noticiosa Lusitânia e o projeto imperial do Estado Novo

O presente estudo pretende descrever as condições políticas e sociais em que foi criada e se desenvolveu a Lusitânia, uma agência noticiosa portuguesa, destinada a contribuir para o fortalecimento do Império português através da difusão do noticiário colonial na metrópole e deste nas colónias. Apesar da escassez de estudos existentes e de não ser conhecido o paradeiro dos arquivos da agência, é possível ainda, através de fontes indiretas, avaliar da importância e do papel ideológico desta agência na construção de um Portugal uno do Minho a Timor, como pretendiam o regime e o fundador da agência, Luís Lupi.

Molecular regulation of flowering induction in Quercus suber

Dissertação de mestrado em Plant Molecular Biology, Biotechnology and Bioentrepeneurship

Microscopy- or DNA-based analyses: Which methodology gives a truer picture of stream-dwelling decomposer fungal diversity?

We assessed aquatic hyphomycete diversity in autumn and spring on oak leaves decomposing in five streams along a gradient of eutrophication in the Northwest of Portugal. Diversity was assessed through microscopy-based (identification by spore morphology) and DNA-based techniques (Denaturing Gradient Gel Electrophoresis and 454 pyrosequencing). Pyrosequencing revealed five times greater diversity than DGGE. About 21% of all aquatic hyphomycete species were exclusively detected by pyrosequencing and 26% exclusively by spore identification. In some streams, more than half of the recorded species would have remained undetected if we had relied only on spore identification. Nevertheless, in spring aquatic hyphomycete diversity was higher based on spore identification, probably because many species occurring in this season are not yet connected to ITS barcodes in genetic databases. Pyrosequencing was a powerful tool for revealing aquatic hyphomycete diversity on decomposing plant litter in streams and we strongly encourage researchers to continue the effort in barcoding fungal species.

RNA-seq analysis of the Quercus suber root response to drought

Dissertação de mestrado em Plant Molecular Biology, Biotechnology and Bioentrepreneurship