Les Périssodactyles (Mammalia) du Miocène de Lisbonne

New data led us to revise Miocene Perissodactyla from Lisbon. Equids (Anchitherium) have been decribed by Alberdi & González (1999); we fully agree with their conclusions. On the other hand, the only Chalicotheriid cannot be clearly reported to any genus. It therefore will be left in open nomenclature Schizorheriinae ind.). The Rhinocerotids have been described in detail (1983). We could recognize now that: Protaceratherium sagicum is a synonym of P. minutum; Plesiaceratherium platyodon and Plesiaceratherium lumiarense should be ascribed to the genus Plesiaceratherium and not to Aceratherium; there are no reasons for name changes as far as the forms previously referred as Diaceratherium aurelianensis, Prosantorhinus germanicus and Hispanotherium matritensis are concerned; as the genera Dicerorhinus and Lartetotherium are distinct, Dicerorhinus (Lartetotherium) sansaniensis has to be named Lartetotherium sansaniensis; as Gaindatherium (Ïberotherium) rexmanueli cannot be reported to Gaindatherium, we therefore upgrade the subgenus Iberotherium to the genus'rank - hence the names of the concerned taxa become Iberotherium rexmanueli rexmanueli and I. rexmanueli zbyszewski; Chilotherium ibericus is but a dental variation of I. rexmanueli zbyszewski. The stratigraphic distribution and age of the Miocene Perissodactyla so far known in the Lower Tagus basin / Lisbon region are presented.

Présence du Créodonte Hyainailouros sulzeri dans le Miocène du bassin du Bas Tage (Lisbonne, Portugal)

Discovery of a fifth metapodial of the Creodont Hyaenodontidae Hyainailouros sulzeri at Quinta da Farinheira (Chelas), near Lisbon (Portugal) in the beginning of the Middle Miocene.

Biostratigraphie et paléoécologie des peuplements d'ostracodes dans le Domérien du Bassin Lusitanien, Portugal

The Domerian sections from the Lusitanian Basin of São Pedro de Muel, Rabaçal and Tomar have provided us with more than 1100 Ostracods belonging from 18 genus and about 48 species. The faunal diversity and density of the associations decrease in space (from Tomar to Rabaçal and São Pedro de Muel) and time, with favourable environments for the proliferation of Ostracods at the lower part of the sections (Stokesi subzone) and more hostile at the upper part (Ragazzonii subzone). The Monestieri and Nitescens horizons and the Subnodosus subzone are characterized by a typical assemblage of Ostracods. The palaeoecological Ostracod indexes reveal the fluctuations of the oxygenation, temperature, depth and hydrodynamism of the water, on the different sections and on the whole platform. They display a diachronous cooling in the Lower Domerian series. In the upper part of the Middle and in the Upper Domerian, the deeper, less oxygenated and cooler waters prevent the development of the Ostracod faunas.

Poissons du Paléogène inférieur de Silveirinha (Portugal)

Fragmentary skeletal remains of Percoid fishes (Teleostei, Percoidei) are described from the Upper Paleocene? or Lowermost Eocene(MN7) from Silveirinha. It is suggested that they belong to some primitive Percoids which are already known in the Iberian peninsula. They bear witness of an ancient westwards extension of the geographical distribution of Percoid fishes that are common in the lower levels of the Eocene in the Douro Basin in Spain.

Description de restes squelettiques de Latidae: Lates (?) sp. (Poissons téléostéens, Percoidei) du Miocène inférieur et moyen du bassin du Bas Tage (environs de Lisbonne, Portugal)

Several Lower and Middle Miocene localities in the Lower Tagus basin near Lisbon yielded Latidae fragmentary remnants. No really decisive character has been recognized that would allow us to state these remnants could surely be ascribed to the genus Lates Cuv. & Val., although we regard this as nearly certain. There are some differences between the Miocene latidae under study and the type species Lates niloticus L. this suggests us to report the concerned remnants to a Lates (?) sp. that could belong to a new, hitherto undescribed species. The occurrence of Lates in fluviatile or lagoonal beds in the Lower Tagus basin Miocene series is not at all surprising under a paleoeciological view point. Even less if account is taken of the presence in the same levels of Siluriforms remnants belonging to Bagridae and Ariidae, two families that are well represented in Africa. Bagrid spines have been found at Quinta das Pedreiras in association with Lates (?) sp. remnants. The Lates (?) sp. discovery in the Lower and Middle Miocene from the Lower Tagus basin results in extending to the West this genus' biogeographic distribution. It is indeed the first discovery of this genus on Europe's Atlantic coasts. No matter which was the geographic origin of these fishes, they had to migrate several hundreds of kilometers through marine waters before entering the Tagus' estuary. The association of Lates (?) sp. remnants with Siluriform ones that have an extant, broad repartition in Africa south of the Sahara points out to an African origin. These thermophyll fishes imigration along the Atlantic coasts from lberian Peninsula probably has been possible owing to a warm climatic event that allowed them to migrate ca. 5 degrees (in latitude) northwards in Burdigalian times.

Présence de Palaeoperdix media (Aves, Galliformes, Phasianidae) et d'autres oiseaux dans le Miocène du Portugal

A distal part of tibiotarsus from Charneca do Lumiar (Langhian, MN5) is identified as Palaeoperdix media, formerly known as Miophasianus medius. This species is thus known on a large area of the Palearctic province, from Portugal to Poland, and from the beginning of the Middle Miocene (MN 5) to the beginning of the Upper Miocene (MN9). An indeterminate, Gruid from Quinta das Pedreiras (Lower Langhian, MN4) and a few marine birds' remnants from Penedo Norte (Burdigalian) have been recognized.

From the Bay of Biscay to the High Atlas: completing the anisotropic characterization of the upper mantle beneath the westernmost Mediterranean region

The knowledge of the anisotropic properties beneath the Iberian Peninsula and Northern Morocco has been dramatically improved since late 2007 with the analysis of the data provided by the dense TopoIberia broadband seismic network, the increasing number of permanent stations operating in Morocco, Portugal and Spain, and the contribution of smaller scale/higher resolution experiments. Results from the two first TopoIberia deployments have evidenced a spectacular rotation of the fast polarization direction (FPD) along the Gibraltar Arc, interpreted as an evidence of mantle flow deflected around the high velocity slab beneath the Alboran Sea, and a rather uniform N100 degrees E FPD beneath the central Iberian Variscan Massif, consistent with global mantle flow models taking into account contributions of surface plate motion, density variations and net lithosphere rotation. The results from the last Iberarray deployment presented here, covering the northern part of the Iberian Peninsula, also show a rather uniform FPD orientation close to N100 degrees E, thus confirming the previous interpretation globally relating the anisotropic parameters to the LPO of mantle minerals generated by mantle flow at asthenospheric depths. However, the degree of anisotropy varies significantly, from delay time values of around 0.5 s beneath NW Iberia to values reaching 2.0 sin its NE comer. The anisotropic parameters retrieved from single events providing high quality data also show significant differences for stations located in the Variscan units of NW Iberia, suggesting that the region includes multiple anisotropic layers or complex anisotropy systems. These results allow to complete the map of the anisotropic properties of the westernmost Mediterranean region, which can now be considered as one of best constrained regions worldwide, with more than 300 sites investigated over an area extending from the Bay of Biscay to the Sahara platform. (C) 2015 Elsevier B.V. All rights reserved.

Atlas des fossiles caractéristiques du Lias portugais* III a) Domérien (Ammonites)

This fascicle, dedicated to the Domerian (Late Pliensbachian) ammonites faunas, is the third part of the “Atlas des fossiles caractéristiques du Lias portugais“. It follows two previous publications about the Hettangian-Sinemurian and the Carixian (Lower fifty species are concisely described and illustrated. The other groups (nautilids, belemnites, brachiopods, bivalvia...) will be published afterwards. The principal objective of the “Atlas des fossiles caractéristiques du Lias portugais“ is to make the main liassic lusitanian fossils known to a wide public. It also aims to support field studies by giving a rich iconography dedicated to the lusitanian invertebrate macrofaunas. In the case of the ammonites, all the species are described and the “Atlas” can be used as an exhaustive database for biostratigraphic and paleobiogeographic studies.

Application de connaissances terminologiques dans le cadre de l'enseignement du Français langue etrangère I et II

Dissertação apresentada para cumprimento dos requisitos necessários à obtenção do grau de Mestre em Terminologia

Quelques Aspects de la Reforme Carolingienne du rituel eucharistique. Les cas exemplaires de la "Fractio" et l"'Immixtio"

pp. 359-365

DU GRAIN À LA MUSIQUE : MANIPULATIONS EN TEMPS RÉEL

Dans cet article, nous présenterons une étude comparative de quelques techniques de manipulation du signal comme la Transformée de Fourier à Court Terme, la Synthèse Granulaire Asynchrone et PSOLA, notamment dans le cadre de leur utilisation en temps réel. Nous présenterons succinctement le fonctionnement de ces trois méthodes dans l’environnement Max / MSP avec l’utilisation de la librairie GABOR. La manipulation des paramètres propres à chaque méthode a des conséquences sur les variables musicales, et l’utilisation de ces méthodes implique des corrélations entre les paramètres techniques du traitement du signal et des attributs musicaux spécifiques. Ainsi, nous essayerons d’explorer les espaces des paramètres et de la perception musicales entre le temps, la période et le spectre (les rythmes, les fréquences et les timbres) en comparant les différentes méthodes en vue de leur croisement dans un système de traitement commun.

La fin (l’infini) du bruit

Á... Á propos d’Erosphère propos d’Érosphère, dans un entretien pour la Revue LIEN2 en 1992, François Bayle explique que le projet d’une Suite fut déclenché par la composition de la 1ère œuvre du cycle – Tremblement de terre très doux. Il y indique : « je me suis petit à petit aperçu, en réalisant cette pièce, que j’y traitais d’un problème inhérent à l’acous- matique : celui du désir, [...] c’est-à-dire des sons appétissants, des sons voluptueux, ce qui m’a entraîné vers un projet plus vaste que j’ai appelé Érosphère, cette loi de gravitation du désir. »3 Plus tard le compositeur déclare : « Au moment d’Érosphère mon projet portait sur les mécanismes du désir, l’érotisme sonore, d’où le titre d’Éros- phère. Découvrir les archétypes érotiques des formes sonores. »4 Dans les notes qui accompagnaient la première édition en disque, Bayle présente sa définition du mot Érosphère : Ce tissu nerveux qui enveloppe notre monde habité d’un réseau d’ondes modulées à une infinité de fréquences, ce nuage de chaleur infra et supra sensorielle que diffusent des mégas milliards d’ émetteurs biologiques, cet anneau où circule la force de ce cosmos, je l’appelle l’érosphère.

Enzymatic characterization of Vibrio alginolyticus strains isolated from bivalves harvested at Venice Lagoon (Italy) and Guanabara Bay (Brazil)

The aquatic ecosystem is the natural habitat of microorganisms including Vibrio and Aeromonas genus which are pathogenic to human and animals. In the present investigation the frequency of these bacteria and the enzymatic characteristics of 34 Vibrio alginolyticus strains isolated from bivalves harvested in Venice Lagoon (Italy) and Guanabara Bay (Brazil) were carried out from November 2003 to February 2004. The mussels' samples were submitted to enrichment in Alkaline Peptone Water (APW) added with 1% of sodium chloride (NaCl) and APW plus 3% NaCl incubated at 37 ºC for 18-24h. Following the samples were streaked onto TCBS Agar (Thiossulfate Citrate Bile Sucrose Agar) and the suspected colonies were submitted to biochemical characterization. Also, the Vibrio alginolyticus strains were evaluated to collagenase, elastase and chondroitinase production. The results showed the isolation of 127 microorganisms distributed as follows: 105 Vibrio strains such as V. alginolyticus (32.4%), V. harveyi (19%) and V. parahaemolyticus (7.6%), 20 Aeromonas strains and two Plesiomonas shigelloides were the main pathogens isolated. We observed the production of the three enzymes from V. alginolyticus strains considered as the main virulence factors of the bacteria, especially in cases of human dermatological infection.