Results 61 to 70 of about 786 (162)
Le bassin versant de l'oued Amzaz (Maroc, Rif central) est caractérisé par un climat semi-aride. Des pluies irrégulières, le plus souvent à caractère orageux combinées à une déforestation importante provoquent une érosion sévère. Les sols sont de plus en
Jamal Chaaouan +3 more
doaj +1 more source
Abstract The study of the different facies of the terminal Jurassic (Portlandian) and of their geographic distribution makes possible a rough estimate of the form of the basin of sedimentation. To the south and to the east appear shallow shelves which extend from Moustier-Sainte-Marie to Nice and to the border of the Mercantour [massif],
openaire +1 more source
Dactylogyrids (Platyhelminthes, Monogenea) from the gill lamellae of doradids (Siluriformes) with description of five new species of Cosmetocleithrum and new geographical distribution for known species from the Neotropical Region, Brazil. [PDF]
Silva ALS +5 more
europepmc +1 more source
Abstract A study of the third lower molar and the second and third upper molars of Gazellospira torticornis found in the Villafranchian (Quaternary) deposit of Saint-Vallier (Drome, France) is presented. Comparison with specimens from Spain indicates a size decrease.
openaire +1 more source
In the last ten years, twenty new uranium deposits have been discovered. They provide nearly 50% of the known and reasonably assured resources. The most important deposits known in the past by size and ore grade were those found in oligomictic quartz ...
Dahlkamp F. J.
doaj +1 more source
Une étude nécropsique réalisée dans onze abattoirs de l'Ituri (Haut-Zaïre) a permis de déterminer la distribution géographique et les prévalences des principaux helminthes des bovins adultes.
C. Chartier, M. Bushu, D. Kamwenga
doaj +1 more source
Diversity, geographical distribution, and prevalence of Entamoeba spp. in Brazil: a systematic review and meta-analysis. [PDF]
Dos Santos Zanetti A +10 more
europepmc +1 more source
A simplified taxonomic classification in 3 groups of the genus Colaniella Likharev is proposed: Colaniella ex gr. parva. Colaniella ex gr. lepida. Colaniella ex gr. minima. The repartition of the eight main Colaniella biofacies is given and the paleogeographic distribution of this genus is presented on a late Permian map configuration.
Jenny-Deshusses, Catherine, Baud, Aymon
openaire +2 more sources
La contribution vise à présenter les premiers résultats d'un projet de recherche dont les buts sont situés sur deux plans: l'élaboration d'un corpus aussi complet que possible de toutes les traces archéologiques de tombes individuelles et de ...
Michel Polfer, Jos Thiel
doaj +1 more source
L'existence de différences antigéniques et de virulence entre souches de Dermatophilus congolensis est connue. Afin de comprendre l'épidémiologie de la dermatophilose, il est important de pouvoir différencier entre les souches du germe.
D.T. Faibra
doaj +1 more source

