Les parcours de vie: de l'activité professionnelle à l'inactivité fonctionnelle

Selection de textes du Colloque International aux Açores, 26-28 Novembre 2008.

Deep ocean species. The little that is known mostly comes from collected specimens. Comment on L.A. Rocha et al. Letter "Specimen collection: An essential tool" (23 May, 344: 814).

Deep Ocean Species. The little that is known mostly comes from collected specimens. L.A. Rocha et al. Letter "Specimen collection: An essential tool" (23 May, 344: 814) brilliantly discuss the importance of specimen collection and present the evolution of collecting since the mid-19th century until our present strict codes and conducts. However, it is also important to emphasize the fact that the vast majority of deep ocean macro-organisms are only known to us because of collection and this is a strong argument that should be present in our actions as scientists. If the deep is considered the least known of Earth’s habitats (1% or so according to recent estimates) then what awesome collection of yet to discover species are still there to be properly described? As the authors point citing (1), something around 86% of species remain unknown. Voucher specimens are fundamental for the reasons pointed out and perhaps the vast depths of the World’s oceans are the best example of that importance. The resumed report of 2010 Census of Marine Life (2) showed that among the millions of specimens collected in both familiar and seldom-explored waters, the Census found more than 6,000 potentially new species and completed formal descriptions of more than 1,200 of them. It also found that a number of rare species are in fact common. Voucher specimens are essential and, again agreeing with L.A. Rocha et al. Letter (see above), the modern approach for collecting will not be a cause for extinctions but instead a valuable tool for knowledge, description and even, as seen above, a way to find out that supposed rare species may not be that rare and even prove to reach abundant populations.

Contributo para o conhecimento dos problemas fitossanitários em diferentes espécies de cameleiras (Caméllia L.) na Ilha de São Miguel

Dissertação de Mestrado, Engenharia Agronómica, 16 de Junho de 2014, Universidade dos Açores.

Pittosporum Undulatum and Hedychium Gardnerianum: nutritive value and secondary metabolites on cattle reproductive performances

Hedychium gardnerianum (HG) and Pittospporum undulatum (PU) are invasive plants all over the world, being in the Azores supplied to cattle on periods of shortage food. As these plants produce secondary metabolites, including a diverse range of phytochemicals compounds, the aim of the presente study is to identify how these metabolites can be related to animal’s reproductive performances. For such purpose, plants were harvested on winter, compounds extracted by method of decoction and analysed by combination of liquid chromatography and mass spectrometry as well as highperformance liquid chromatography. For nutritive evaluations, Van Soest and Weende methodologies were used. In HG quercetin-3, 4'-di-O-betaglucopyranoside, myricetin rhamnoside, quercetin rhamnoside, and gibberellin A1 and A8 were identified, while for PU were found cafeic acid derivatives, including dicaffeoylquinic acid and caffeoylquinic acid. In nutritional terms, these plants can be considered as poor, presenting percentages of dry matter (DM%) of 16.34% and 40.39%, respectively for HG and PU. Values for ash 10.4%, crude protein (CP) 7.75%, neutral detergent fiber (NDF) 64.5, acid detergent fiber (ADF) 34.69%, acid detergent lignin (ADL) 3.47% and ether extract (EE) 2.03% were found for HG. For PU values were ash 6.64%, CP 6.11%, NDF 43.84%, acid ADF 35.57%, ADL 3.56% and EE 2.71%. This study clearly indicated that, besides their low nutritive values, these plants can be used to feed ruminants, especially when pasture lacks. Nevertheless, as some compounds, namely the caffeoylquinic and dicaffeoylquinic acids, are known to be associated to physiological reproductive mechanisms, one could speculate that these compounds can be directly or indirectly associated to reproductive performances in bovine fed with these plants.

Vamos lá rir com a Matemática!

Todos os anos, o dia mundial do teatro celebra-se a 27 de março. Homenageando esta arte quero com o artigo de hoje exemplificar o contributo da matemática nas artes teatrais, nomeadamente a comédia. [...].

O Projeto P.l.R.A.T.A.-C.B.

O presente texto corresponde ao capítulo XIII do livro em apreço, redigido em co-autoria com colegas da Universidade dos Açores, no qual se apresentam alguns dos resultados do estudo realizado em torno da cultura do brincar nos Açores.

Lire un blog : L'Autofictif d'Eric Chevillard

Artigo também disponível no PROA-UA: plataforma de revistas em open access da universidade de aveiro com o URI http://revistas.ua.pt/index.php/Carnets/article/view/436/397.

Éric Chevillard : des soucis esthétiques a l'engagement écologique

Artigo também disponível no PROA-UA: plataforma de revistas em open access da universidade de aveiro com o URI http://revistas.ua.pt/index.php/Carnets/article/view/768/695.

Une quête d'identité par le détour : «Dans ces bras-là», de Camille Laurens

L'articulation savante entre éléments autobiographiques, fiction et détournement de conventions sont caractéristiques du travail de Camille Laurens. Dans ces bras-là (2000) peut être décrit comme une quête d'identité par le détour de l'autre. En effet, le roman s'organise autour des trois rapports dichotomiques autobiographie-fiction, femme-homme et écriture-langage oral. Le résultat en est un regard complexe et profond sur l'identité de Camille Laurens qui est ici une femme, un auteur, mais aussi la narratrice d'un récit.

Traduire l’étranger De Mau Tempo no Canal à Gros Temps sur L'archipel

Initialement présentée au Colloque international APEF / APFUE / SHF: L'Étranger. Université de l'Algarve.