74,436 research outputs found
Peritropoides Carvalho 1955
No full textPeritropoides Carvalho, 1955 duckei Carvalho, 1982: 411, fig. 3. Holotype: male (Hemip037), glued to a pinned paper; Brazil, Amazonas, Manaus, AM-010, Km 26, Reserva Ducke, C.D.C. light trap, 16.VIII. 1977, J. Arias coll. pennyi Carvalho, 1982: 412, figs. 4–7. Holotype: male (Hemip038), glued to a pinned paper; Brazil, Amazonas, Manaus, Parque das Laranjeiras, 04.IX. 1981, J. Arias coll. Paratypes: 2 males (Hemip038P 1 –P 2), same data of holotype.Published as part of Rodrigues, Higor D. D. & Ferreira-Keppler, Ruth L., 2013, Catalog of type specimens of invertebrates in the collection of the Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil. VI. Hexapoda: Hemiptera: Heteroptera, pp. 192-206 in Zootaxa 3716 (2) on pages 194-195, DOI: 10.11646/zootaxa.3716.2.4, http://zenodo.org/record/21894
Search for the decay Bs0→D*∓π±
No full textA search for the decay Bs0→D*∓π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as Bs0→π+π- and Bs0→DD̅ . Systematic uncertainties are minimized by using B0→D*∓π± as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(Bs0→D*∓π±)<6.1(7.8)×10-6 at 90% (95%) confidence level
Musschia isambertoi M. Seq., R. Jardim, M. Silva & L. Carvalho (Campanulaceae), a new species from the Madeira Archipelago (Portugal).
No full textA new species of Musschia Dumort. (Campanulaceae), endemic from Madeira Archipelago (Portugal), is described as Musschia isambertoi M. Seq., R. Jardim, M. Silva & L. Carvalho. Both vegetative and reproductive structures have been studied and are remarkably distinct from the recognized species [M. aurea (L. f.) Dumort. and M. wollastonii Lowe]. A full description and a diagnosis are included as well as line art, color drawings and pictures. Diagnostic characters are discussed and compared with those of the closely related species. The new species has a very restricted distribution occurring in two isolated populations in the Deserta Grande Island (Madeira Archipelago, Portugal). Nomenclatural aspects on the genus Musschia Dumort. are discussed and a diagnostic key for the species is also includedSe describe una nueva especie de Musschia Dumort. (Campanulaceae), endémica del archipiélago de Madeira (Portugal), Musschia isambertoi M. Seq., R. Jardim, M. Silva & L. Carvalho. La morfología de las estructuras vegetativas y florales estudiadas es claramente distinta de la de las otras dos especies conocidas, Musschia aurea (L. f) Dumort. y Musschia wollastonii Lowe. Se incluyen: una descripción y una diagnosis, ilustradas por imágenes, una lámina en blanco y negro y una en color. Se comparan y discuten los caracteres diagnósticos dentro del conjunto de especies del género. La nueva especie es endémica de la isla Deserta Grande (archipiélago de Madeira, Portugal). Se discuten aspectos nomenclaturales y se incluye una clave de las especies conocidas para Madeira
Phytochemical characterization of the berry like fruits of tutsan (Hypericum Andrsaemun L.).
No full textHypericum androsaemum L. (family Hypericaceae, Fig. 1) is a small evergreen shrub, fairly common in damp woods and hedgerows within the Mediterranean Basin, mainly in Western and Southern Europe, South-Western Asia, North Africa, while it has been introduced elsewhere. [1,2]. Among Hypericum species, H. androsaemum has the peculiarity to produce fleshy ‘berry-like’ fruits that ripen from red to shiny black. The plant is also known as ‘tutsan’, meaning ‘tout-saine’, i.e. ‘all-heal’, name given for its supposed medicinal properties. In fact, it has been used for its diuretic effect and infusions of the leaves were used for liver, kidney and bladder ailments[3]. In the present work, we reported a comprehensive analysis on the chemical composition, secretory structures, nutritional values and antioxidant potential of the ‘berry-like’ fruits of H. androsaemum collected both from wild and cultivated plants in central Italy.
The phenolic profile of methanolic extracts and infusions of red and black fruits was obtained by HPLC-DAD, and correlated with their antioxidant properties which were evaluated by the DPPH, β-Carotene/linoleic acid and hypochlorous acid tests. Moreover, the main polar compounds of the berries were isolated by column chromatography and structurally elucidated by NMR. The red berries showed higher levels of phenolic compounds such as shikimic and chrlorogenic acids with respect to black berries. In addition, the infusion obtained from red berries gave the highest values of antioxidant activity. The composition of the essential oil and aroma components of the fruits were investigated by GC-FID, GC-MS, and HS-SPME-GC-MS. It was found that red fruits have higher content of essential oil and of monoterpene hydrocarbons with respect to black fruits (0.3 vs 0.1%, and 84.0 vs 78.8%, respectively). To complete the work, we performed a morphological and histochemical study on H. androsaemum berries to provide new insights on fruit anatomy, and on the histolocalization of the complex metabolite mixture produced.
References
[1]Allen, D. A., & Hatfield, G. (2004). Medicinal plants in folk tradition. An ethnobotany of Britain and Ireland. Portland, Oregon, USA: Timber Press, Inc.
[2]Valentão, P., Carvalho, M., Fernandes, E., Carvalho, F., Andrade, P. B., Seabra, R. M., & Bastos, M. d. L. (2004). Protective activity of Hypericum androsaemum infusion against tert-butyl hydroperoxide-induced oxidative damage in isolated rat hepatocytes. Journal of Ethnopharmacology, 92, 79-84.
[3]Valentão, P., Fernandes, E., Carvalho, F., Andrade, P. B., Seabra, R. M., & Bastos, M. d. L. (2002). Antioxidant Activity of Hypericum androsaemum Infusion: Scavenging Activity against Superoxide Radical, Hydroxyl Radical and Hypochlorous Acid. Biological and Pharmaceutical Bulletin, 25, 1320-1323
Production of extracellular l-asparaginase: from bioprospecting to the engineering of an antileukemic biopharmaceutical
No full textL-asparaginase is an enzyme clinically accepted as an anti-tumor agent for the treatment of acute lymphoblastic leukemia and lymphosarcoma. The main focus of this study is to provide a thorough overview on microbial production of such a biopharmaceutical
Parias, terreros, reinas: el otro en el cine de Fábio Carvalho
No full textEste artigo examina o papel do outro em filmes escolhidos do cineasta Fábio Carvalho. À luz de estudos filosóficos sobre a alteridade e de entrevistas com Fábio Carvalho, o texto adentra o modo como personagens urbanos são focalizados em documentários curtos do realizador. Trata-se de figuras marginais da sociedade belo-horizontina na década de 1990, capturadas no contexto em que vivem e habitam, num tempo em que eram raros os documentários desse tipo. Os filmes apontam para a singularidade dessas figuras, que se reinventam no cenário urbano, mostrando-se múltiplas e cambiantes, malgrado a invisibilização de que são alvo.
Este artículo examina el papel del otro en las películas del cineasta Fábio Carvalho. A la luz de estudios filosóficos sobre la alteridad y de entrevistas con Fábio Carvalho, el texto explora la forma en que los personajes urbanos son abordados en los cortos documentales del director. Se trata de figuras marginales de la sociedad de Belo Horizonte de los años 1990, capturadas en el contexto en el que viven y habitan, en una época en la que los documentales de este tipo eran escasos. Las películas señalan la singularidad de estas figuras, que se reinventan en el escenário urbano, mostrándose múltiples y cambiantes, a pesar de la invisibilización de la que son objeto.Cet article examine le rôle de l\u27autre dans les films du cinéaste Fábio Carvalho. À la lumière d\u27études philosophiques sur l\u27altérité et d\u27entretiens avec Fábio Carvalho, le texte explore la manière dont les personnages urbains sont mis en avant dans les courts documentaires du réalisateur. Ce sont des figures marginales de la société de Belo Horizonte des années 1990, capturées dans le contexte dans lequel elles vivent et habitent, à une époque où les documentaires de ce type étaient très rares. Les films pointent la singularité de ces figures, qui se réinventent dans le milieu urbain, se montrant multiples et changeantes, malgré l\u27invisibilisation dont elles sont la cible.This article examines the role of the other in selected films by filmmaker Fábio Carvalho. In the light of philosophical studies on otherness, as well as interviews with Fábio Carvalho, the text deals with the way urban characters are shown by shorts made by the director in the 1990s. These are marginal figures from Belo Horizonte city, captured in the context they live, in a time when films like these were very rare. The shorts point to the singularity of the characters, who reinvent themselves in the urban scenery, showing their multiple and changing faces, despite of the invisibility with which they are seem
A 2 h periodic variation in the low-mass X-ray binary Ser X-1
No full textSpectroscopy of the low-mass X-ray binary Ser X-1 using the Gran Telescopio Canarias have revealed a ?2 h periodic variability that is present in the three strongest emission lines. We tentatively interpret this variability as due to orbital motion, making it the first indication of the orbital period of Ser X-1. Together with the fact that the emission lines are remarkably narrow, but still resolved, we show that a main-sequence K dwarf together with a canonical 1.4 M? neutron star gives a good description of the system. In this scenario, the most likely place for the emission lines to arise is the accretion disc, instead of a localized region in the binary (such as the irradiated surface or the stream-impact point), and their narrowness is due instead to the low inclination (?10°) of Ser X-1
Podcast En Mémoire de la Mémoire | Ep 15. Hériter de l'Empire, avec Márcio Carvalho
No full text<p>En mémoire de la mémoire, nous nous entretenons aujourd'hui avec Márcio Carvalho.<br><br>Issu d'une famille multiraciale composée d'Angolais et de Portugais, dont six générations sont nées en Angola, Márcio Carvalho est né en 1981 à Lagos, au Portugal. Artiste visuel, conservateur d'art contemporain et illustrateur, il vit actuellement entre Berlin et le Portugal.<br><br>Son travail, qui utilise différents médias et langages, se situe aux intersections entre la mémoire individuelle et la mémoire collective, entre le pouvoir et le silence, entre le souvenir et l'oubli. "If my grandmother was a historian" propose de réfléchir à ce que signifie raconter l'histoire à partir d'autres sujets, d'autres voix, d'autres géographies et d'autres disciplines, et à ce que ce geste peut apporter aux mouvements d'interpellation du passé et du présent.<br><br>Nombre de ses œuvres remettent en question la mémoire festive associée aux statues, aux toponymes et aux monuments coloniaux qui peuplent encore de nombreuses villes européennes et du monde entier. On pourrait dire que ses œuvres sont, dans une certaine mesure, une sorte de contre-monument, qui remet en question les récits dominants et même l'idée du monument et de l'archive en tant qu'espaces statiques et fixes. Dans "Falling Thrones", une série d'images qui faisait partie de l'exposition <em>Europa Oxalá</em>, nous trouvons des images en noir et blanc de figures de pouvoir coloniales telles que le roi Léopold de Belgique juxtaposées aux figures colorées d'athlètes noirs qui se sont également distingués en tant que militants anticoloniaux, dans un conflit de corps, d'expériences, de mémoires et d'héritages différents. Il parlera de tout cela aujourd'hui dans En Mémoire de la Mémoire, un podcast du projet MAPS.<br><br>La direction a été assurée par Inês Nascimento Rodrigues, le montage sonore par José Gomes et le graphisme par Márcio Carvalho. La voix de la narratrice est celle d’Ana Palma. La voix de Márcio Carvalho est doublée par Júlio Gomes. Générique : voix de Rui Cruzeiro et musique originale de XEXA.</p>
Campos de Carvalho: a subjetividade condicional
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina. Centro de Comunicação e ExpressãoO objeto de estudo desta dissertação é o trabalho ficcional de Walter Campos de Carvalho (Minas Gerais -1916) , publicado na década de 50 (Tribo, 1954, e A Lua Vem da Ásia, 1956). Está dividida em quatro partes : a primeira estabelece o vínculo existente entre a ficção do escritor mineiro com o movimento modernista de 22; a segunda trata do procedimento compositivo, responsável por uma desarticulação da forma romanesca tradicional; a terceira aborda o processo de constituição da subjetividade presente nos romances estudados; a quarta e última, fixa o contexto social aludido na produção ficcional de Campos de Carvalho
Relatório da Bolsa de Investigação de Denise Carvalho Costa no âmbito do projecto Rose4Pack
No full textProjeto “Rose4Pack – Embalagem biodegradável ativa com extrato de alecrim para incrementar a vida útil dos alimentos”, financiado por Fundos FEDER através do Programa Operacional Fatores de Competitividade – COMPETE (FCOMP-01-0124-FEDER-028015) e por Fundos nacionais da FCT – Fundação para a Ciência e a Tecnologia (PTDC/AGR-TEC/3366/2012). Denise Carvalho Costa agradece a Bolsa de Investigação Científica no âmbito do Projeto Rose4Pack
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