Wear of PEEK-Ti6Al4V systems under micro-abrasion and linear sliding conditions

Dissertação de mestrado integrado em Engenharia Biomédica

Converses en un espai de frontera dialectal : Estudi sobre la transició dialectal en les fronteres comarcals del Priorat i del Baix Camp

Aquest és un estudi geolingüístic en una àrea de transició entre el català occidental i l'oriental situat entre els límits comarcals del Priorat i el Baix Camp. Els pobles estudiats són Cornudella, Ulldemolins, la Morera, Prades, Capafonts i Arbolí. La descripció lingüística ens permet posar en relleu les convergències i divergències dels parlars dels pobles. L'estudi recull també el lèxic més significatiu de cada població i els mapes amb els resultats.

Cuidar la vida, cosa de todos.

Pretende recuperar un medio ambiente más natural, más rico en vida vegetal para mejorar la calidad de vida de la comunidad escolar y su utilización didáctica. Los objetivos son: cuidar, observar y estudiar diferentes formas de vida vegetal y animal, incorporándolas a las aulas, patios y espacios comunes; profundizar en la interdisciplinariedad; crear una conciencia sensible ante la conservación y protección del medio ambiente. Entre las actividades destacan el trabajo, riego y conservación de las zonas verdes que rodean al colegio. Se evalúa el grado de consecución de los objetivos, constancia, responsabilidad y participación en las tareas y colaboración y apoyo de las instituciones por medio encuestas a profesorado y alumnado.

Me gusta hacer teatro.

Exposición de los diversos modos de comunicar con el cuerpo, de los juegos teatrales para desarrollar esta capacidad y de la organización de representaciones teatrales tanto improvisadas como con apoyo del texto. Consta de dos volúmenes : el primero sirve para hacer diversos juegos teatrales, el segundo para poner en escena las representaciones.

Periodontal status in smokers and never-smokers: Clinical findings and real-time polymerase chain reaction quantification of putative periodontal pathogens

Background: Smoking is a well-known risk factor for destructive periodontal disease, but its relationship with periodontal status and subgingival microbiota remains unclear. Inherent limitations of microbiological methods previously used may partly explain these mixed results, and real-time polymerase chain reaction (PCR) has been presented as a valid alternative. The aim of the present study was to investigate the clinical condition and microbiological profile of patients with chronic periodontitis as related to the habit of smoking.Methods: Fifty patients (33 to 59 years old), 25 smokers and 25 never-smokers, constituted the sample. The visible plaque index (VPI), gingival bleeding index (GBI), bleeding on probing (BOP), periodontal probing depth (PD), clinical attachment loss (CAL), and gingival crevicular fluid (GCF) volume were recorded. Real-time PCR quantified Porphyromonas gingivalis, Micromonas micros, Dialister pneumosintes, Actinobacillus actinomycetemcomitans and total bacteria in subgingival samples.Results: Smokers and never-smokers showed similar values for VPI, GBI, and BOP. Smokers had deeper PD in buccal/lingual sites and higher CAL independently of the tooth surface. The GCF volume was smaller in smokers, independent of the PD. Similar amounts of total bacteria and P. gingivalis were observed for both groups. Significantly higher numbers of D. pneumosintes and M. micros were present in smokers and associated with moderate and deep pockets. When heavy smokers were considered, higher counts of total bacteria, M. micros, and D. pneumosintes were observed.Conclusions: Smoking seems to have a detrimental impact on the periodontal status and microbiological profile of patients with periodontitis. Compared to never-smokers, smokers had deeper pockets, greater periodontal destruction, and higher counts of some putative periodontal pathogens.

Minimum volume for a liquid bridge between equal disks

The lower stability limit for axisymmetric floating zones at rest between equal coaxial disks has been experimentally verified for several disk-separation/disk-diameter ratios by using the neutral buoyancy technique. Results show a close agre ment with theory in the case of bridge disruption and a wide scatter in the case of bridge etachment.

The Franco-German Alliance: Can it continue to serve as a motor for Europe? CEPS Commentary, 22 January 2013

On the occasion of the 50th anniversary of the Elysée Treaty between Germany and France, CEPS Director Daniel Gros acknowledges the fundamental contribution made by the Franco-German motor but also takes the two countries to task for their refusal abandon the pretence that they still perform individually an independent role at the global level. France and Germany should allow European institutions to formulate and implement common external policies.