Localization of ribosomal genes in three Pimelodus species (Siluriformes, Pimelodidae) of the São Francisco River: 5S genes as species markers and conservation of the 18S rDNA sites

Pimelodidae is one of the most representative of Neotropical catfish families. However, these fish are still poorly studied in terms of cytogenetics, especially regarding the application of more accurate techniques such as the chromosomal localization of ribosomal genes. In the present work, fluorescent in situ hybridization with 5S and 18S rDNA probes was employed for rDNA site mapping in Pimelodus sp., P. fur and P. maculatus from the São Francisco River in the Três Marias municipality - MG. The results from the application of the 18S probe confirmed the previous data obtained by silver nitrate staining, identifying a simple nucleolar organizing region system for these species. However, the labeling results from the 5S rDNA probe demonstrated a difference in the number and localization of these sites between the analyzed species. The obtained data allowed inferences on the possible processes involved in the karyotypic evolution of this genus.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq

Graph Partitioning with Acyclicity Constraints

Graphs are widely used to model execution dependencies in applications. In particular, the NP-complete problem of partitioning a graph under constraints receives enormous attention by researchers because of its applicability in multiprocessor scheduling. We identified the additional constraint of acyclic dependencies between blocks when mapping streaming applications to a heterogeneous embedded multiprocessor. Existing algorithms and heuristics do not address this requirement and deliver results that are not applicable for our use-case. In this work, we show that this more constrained version of the graph partitioning problem is NP-complete and present heuristics that achieve a close approximation of the optimal solution found by an exhaustive search for small problem instances and much better scalability for larger instances. In addition, we can show a positive impact on the schedule of a real imaging application that improves communication volume and execution time

Currículo Europeu para o Ensino Inclusivo da Linguagem Académica (EILA)

Este documento é a versão traduzida do currículo elaborado durante o período de realização do projeto EUCIM-TE. O documento original (em língua inglesa) pode ser consultado em www.eucim-te.eu.Educational systems of most European countries seem to be unable to respond adequately to the growing migration-induced multilingualism. At the moment, none of the European member states has developed an integrated approach to address linguistic diversity in teacher pre- and in-service training programmes. With it, there is a need to move from “compartmentalised” language support approaches to “mainstreamed” approaches where second language instruction is integrated across school years and subjects in the regular school curriculum. The European Union COMENIUS Project EUCIM-TE has proposed such a curriculum, as well as national adaptations for eight European contexts. The present document is the Portuguese version of this curriculum proposal, the so called IALT (Inclusive Academic Language Teaching) core curriculum, which aims improving pre- and in-service teacher training for work with pupils with an ethnic and linguistic minority background.Projecto financiado com o apoio da Comissão Europeia (Comenius Life Long Learning Programme - 141836-LLP-1-DE-COMENIUS-CMP)

National report on needs analysis: Portugal

O presente relatório foi elaborado no âmbito do Projeto europeu EUCIM-TEComissão Europeia Sub-programa: Lifelong Learning: Comenius 141836-LLP-1-DE-COMENIUS-CM

Vegetative propagation of the endangered Azorean tree, Picconia azorica

Picconia azorica (Tutin) Knobl. (Oleaceae), commonly named “pau-branco”, is an endangered tree endemic to the Azores. Vegetative propagation may be important for the preservation of this species, particularly in depauperate populations, with low seed set. The objective of this study was to evaluate effective techniques for the vegetative propagation of P. azorica by rooting of stem cuttings or by air layering. Rooting substrate, IBA concentration, and the portion of the area of the terminal leaf pair kept on stem cuttings, when tested in early spring (semi-hardwood cuttings) and autumn (hardwood cuttings) failed to produce any rooted cuttings. In contrast, air layering performed in the autumn on lateral branches of adult trees was successful. After 12 months, air layers treated with 5000 ppm of IBA in talc achieved 65% rooting, while those treated with 2500 ppm IBA or without growth regulator only attained 41 and 28% rooting, respectively. Our study indicates that P. azorica is relatively easy to propagate by air layering. This method could be used to restore natural populations of P. azorica when seeds are not available or plant competition impairs natural regeneration