ORCID Profile
0000-0001-8748-8544
Current Organisations
University of Liège
,
University of Pennsylvania
,
CVA International Group
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Publisher: Elsevier BV
Date: 06-2018
Publisher: Elsevier BV
Date: 10-2000
DOI: 10.1016/S0169-4758(00)01792-0
Abstract: Protein targeting in malaria parasites is a complex process, involving several cellular compartments that distinguish these cells from more familiar systems, such as yeast or mammals. At least a dozen distinct protein destinations are known. The best studied of these is the vestigial chloroplast (the apicoplast), but new tools promise rapid progress in understanding how Plasmodium falciparum and related apicomplexan parasites traffic proteins to their invasion-related organelles, and how they modify the host by trafficking proteins into its cytoplasm and plasma membrane. Here, Giel van Dooren and colleagues discuss recent insights into protein targeting via the secretory pathway in this fascinating and important system. This topic emerged as a major theme at the Molecular Approaches to Malaria conference, Lorne, Australia, 2-5 February 2000.
Publisher: Springer Science and Business Media LLC
Date: 13-04-2022
DOI: 10.1007/S42452-022-05029-5
Abstract: This study aims at the mineralogical and physicochemical characterization of the clay formations of the Miocene age from the Timgad Basin (Massif of Aurès, NE Algeria), in order to evaluate their possible valorization, notably for their potential use in the manufacturing of bricks and ceramic industry. For this purpose, four s les were taken from a clay-dominated formation that outcrops 5 km east of the Timgad city. Each s le was collected, prepared, and analyzed by the appropriate analytical methods of characterization such as X-ray diffraction, X-ray fluorescence, and scanning electron microscopy. Moreover, other complementary analyses are performed in this study such as laser granulometry and geotechnical tests. The results of the different tests revealed that the clay formations of the Timgad Basin are non-refractory clays and characterized by medium plasticity. These clays are constituted of more than 50% of fine fraction, mainly represented by kaolinite in association with non-negligible proportions of illite, chlorite, mixed-layer clay minerals, and traces of smectite. Besides, this clayey assemblage is accompanied by some proportion of quartz and calcite, as well as traces of hematite, feldspar, and gypsum. In the light of these results and in combination with the particle size distribution, as well as the results of geotechnical tests, it is concluded that the Neogene clays of the Timgad Basin present high limits of Atterberg. Consequently, their use in the field of manufacturing of bricks and terra cotta ‘Terre Cuite’ products is subordinated to a preliminary treatment with addition of a degreasing agent, in the form of coarse sand, in order to improve their plasticity. Mineralogical and physicochemical properties of the Neogene clays from the Timgad Basin have been investigated. The studied clays have ideal mineralogical composition and physicochemical properties thus making them applicable in the manufacturing of bricks and ceramic industry. Addition of coarse sand to the Neogene clays will greatly improve the plasticity of these raw materials.
Publisher: Springer Science and Business Media LLC
Date: 03-2004
DOI: 10.1038/NRMICRO843
Publisher: Elsevier BV
Date: 02-2023
Location: Australia
Location: Algeria
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