Search results for "Forming"
showing 10 items of 1719 documents
Moyen Âge : entre ordre et désordre
2004
La musique tient une place toute particulière dans la civilisation de l'Occident médiéval. Elle est à la fois le reflet immatériel de l'harmonie du monde supraterrestre et le fruit de l'activité musicale des hommes. Dans les deux cas, elle ordonne, règle, accorde. Elle reflète, exprime et installe un ordre qui dépasse l'homme et s'inscrit au plus profond de sa chair : de la musique des sphères aux pulsations vitales des organismes les plus primitifs, la musique irrigue le monde créé et le transcende. Il n'est pas surprenant dans ces conditions que les commanditaires et les artistes médiévaux aient eu recours si abondamment à la représentation figurée pour exprimer leur vision de la musique.…
On the improvement of material formability in SPIF operation through tool stirring action
2012
Single-point incremental forming (SPIF) is a quite new sheet-forming process which offers the possibility to deform complex parts without dedicated dies using a single-point tool and a standard three-axis CNC machine. The process mechanics enables higher strains with respect to traditional sheet-forming processes, but particular attention must be given to the maximum forming angle. In this paper, a new approach is proposed to enhance the material formability through a localized sheet heating as a consequence of the friction work caused by elevated tool rotational speeds. AA1050-O, AA1050-H24, and AA6082-T6 were utilized, and the reached temperatures were recorded by thermocouples, fixed to …
A collaborative writing approach to wikis: Design, implementation, and evaluation
2011
Published version of an article from the journal:Issues in Informing Science and Information Technology. Also available from the publisher: http://iisit.org/Vol8/IISITv8p431-449Hadjerrouit224.pdf Wikis provide teachers with potentially significant opportunities for creating socially engaged tasks that require active student participation and collaboration. Wikis allow students to work together to develop content on the web, giving them a sense of how writing can be carried out collaboratively. Collaborative writing offer opportunities not only to practice literature review, academic reading and writing, but also to stimulate reflection, knowledge sharing, and critical thinking. However, des…
Ambiguous Role of Interleukin-12 in Yersinia enterocolitica Infection in Susceptible and Resistant Mouse Strains
1998
ABSTRACT Endogenous interleukin-12 (IL-12) mediates protection against Yersinia enterocolitica in C57BL/6 mice by triggering gamma interferon (IFN-γ) production in NK and CD4 + T cells. Administration of exogenous IL-12 confers protection against yersiniae in Yersinia -susceptible BALB/c mice but exacerbates yersiniosis in resistant C57BL/6 mice. Therefore, we wanted to dissect the different mechanisms exerted by IL-12 during Yersinia infections by using different models of Yersinia -resistant and -susceptible mice, including resistant C57BL/6 mice, susceptible BALB/c mice, intermediate-susceptible wild-type 129/Sv mice, 129/Sv IFN-γ-receptor-deficient (IFN-γR −/− ) mice and C57BL/6 tumor n…
Pour une géologie des instruments de musique
2018
International audience; Nous présentons dans cet article une recherche de terrain de trois années, pluridisciplinaire, débutée à l'automne 2016, intitulée ASMA (arts de la scène et musique à l'âge de l'anthropocène) et qui vise à développer une approche écologique de la musique et des arts de la scène.Dans une première partie, nous discutons les concepts théoriques qui sous-tendent notre étude. Nous commençons par nous référer à la notion d'anthropocène et évoquons les conséquences politiques et théoriques de l'avènement de l'anthropocène.Dans une seconde partie, nous présentons successivement certains des terrains retenus pour ce projet débuté en 2016. Nous évoquons successivement les impa…
Introduction
2017
International audience
On listening to atonal variants of two Piano Sonatas by Beethoven
2009
International audience; We investigated the contribution of tonal relationships to the perception of musical ideas and to the feelings of "arousal." Two excerpts of piano sonatas by Beethoven and two atonal variants were used as experimental stimuli. This manipulation destroyed the tonal relationships but preserved both the local and global temporal organization (rhythm and formal). Listeners were asked to indicate the onset of musical ideas, to estimate the arousing properties of the music in a continuous response task, and to rate the similarity of the pieces. A drastic change in the pitch structure strongly affected judgments of similarity. However, it had no effect on the segmentation o…
Role of the small heat shock protein alphaB-crystallin in pulmonary fibrosis and its implication in the signaling pathway of the Transforming Growth …
2013
Idiopathic pulmonary fibrosis (IPF) has no effective current treatment. It is characterized by a sub-pleural onset and the presence of myofibroblasts, responsible for the excessive extracellular matrix synthesis. Transforming Growth Factor (TGF)-β1 is considered as the major profibrotic cytokine. Its signaling pathway occurs through the Smads proteins, including Smad4. TGF-β1 allows the differentiation of lung fibroblasts and epithelial and mesothelial cells into myofibroblasts. AB-crystallin is a small heat shock protein overexpressed in liver, renal and vascular fibrosis and can be induced by TGF-β1. In this study, we assessed the role of αB-crystallin in pleural and pulmonary fibrosis. W…
Handcrafting in archaeomusicological research
2016
There were no conference proceedings but you may find video recordings of some of the talks by following the link above; International audience; Archaeological flutes, as sound artefacts, both stand in material and immaterial culture. They are made of tremendous subtleties that archaeologists have a hard time to understand while these are craftsmen's everyday life. These subtleties are the link between material (rough material, tools, gestures) and immaterial (sounds, music, timber, uses) issues. They are the reason why archaeology cannot study ancient sound instruments on its own. A one-year insight experience of apprenticeship alongside a traditional-flute-maker (Jean-Daniel Talma, ElBock…
Rapport du groupe de travail "SHS et santé" de l'alliance Athéna
2012
Le groupe de travail « SHS et santé » de l’alliance Athéna est chargé d’une mission anticipatrice portant sur les thématiques de Sciences Humaines et Sociales concernant la santé afin de stimuler et faire évoluer la recherche de SHS sur ce domaine, et d’en assurer l’ouverture internationale. Ce travail de prospective vise tout à la fois à énoncer des recommandations de l’alliance Athéna en direction de l’ANR et à doter l’alliance d’orientations et d’actions dans ce domaine pour sa propre stratégie scientifique et pour a nourrir les échanges avec ses partenaires, notamment l’alliance Aviesan.Selon une approche de type matriciel, le groupe a identifié 4 lignes de questionnement sur des thèmes…