José Antonio Jiménez

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Beach waste and litter composition and evolution on popular urban (located in the main nucleus of the municipality) and urbanized (located in residential areas outside the main nucleus) beaches of the Costa Brava (Catalan coast) were assessed during the bathing season. Waste and litter production (amount and composition) were affected by urbanization and(More)
The existing theories incorporated to state-of-the-art, activated-sludge-consensus models indicate that the removal of particulate substrate from the liquid in the activated-sludge process is a two-step process: instantaneous enmeshment of particles and hydrolysis followed by oxidation. However, experimental observations indicate that the removal of(More)
In this work, we present a surface study by SFM (scanning force microscopy) of three new Ti alloys of composition (in wt%) Ti–7Nb– 6Al, Ti–13Nb–13Zr and Ti–15Zr–4Nb, developed for biomedical applications. V was not included in these alloys since this element has been reported to be cytotoxic. The surface of these materials has been modified by a thermal(More)
a Department of Surfaces and Coatings, ICMM-CSIC, Sor Juana Inés de la Cruz, 3, Cantoblanco, 28049 Madrid, Spain b Departamento de Física Aplicada and Instituto Nicolás Cabrera, Universidad Autónoma de Madrid, Cantoblanco, E-28049 Madrid, Spain c Centro Nacional de Investigaciones Metalúrgicas, CSIC, Avda. Gregorio del Amo 8, E-28040 Madrid, Spain d(More)
The high-rate activated sludge (HRAS) process is a technology suitable for the removal and redirection of organics from wastewater to energy generating processes in an efficient manner. A HRAS pilot plant was operated under controlled conditions resulting in concentrating the influent particulate, colloidal, and soluble COD to a waste solids stream with(More)
Coastal wetland stability and structure can be significantly affected by littoral processes when they are close to the shoreline. Thus, under certain conditions, the combination of shoreline dynamics and direct wave action during storms can influence the stability of marshes and vegetation community composition. This interaction between littoral dynamics(More)
1. yon Graevenitz A: Aeromonas and Plesiomonas. In: Lennette EH, Balows A, Hausler W J, Shadomy HJ (ed): Manual of clinical microbiology. American Society for Microbiology, Washington, DC, 1985, p. 278-281. 2. Popoff M: Genus III. Aeromonas Kluyver and Van Niel, 1936, 398. In. Krieg NR, Holt JG (ed): Bergey's manual of systematic bacteriology. Volume 1,(More)
Post-kala-azar dermal leishmaniasis (PKDL) is a rare clinical variant of cutaneous leishmaniasis. It is very common in the Indian subcontinent and less frequent in East Africa, but exceptional in the American and European continents. We have observed a case of PKDL in a renal transplant recipient. No systemic symptoms were present. The patient was treated(More)
We report here the first nanoscale surface elasticity measurements on surface-modified titanium alloys using the force spectroscopy mode in scanning force microscopy. Samples of three vanadium-free titanium alloys, Ti-7Nb-6Al, Ti-13Nb-13Zr and Ti-15Zr-4Nb, were investigated. Surface modification of the three alloys was produced by thermal oxidation in air(More)