Les pratiques du vinyles : nostalgie et médiation

Dans ce mémoire, j’explore les pratiques musicales du vinyle et démontre de quelles manières la nostalgie en est une des médiations. En m’appuyant sur la notion de nostalgie telle que développée par Svetlana Boym (2002), je propose de comprendre ces pratiques comme un lieu où cohabitent à la fois la nostalgie réflexive et la nostalgie restauratrice. Plus précisément, j’argue que les reconstructions du passé et les éléments d’authenticité qui traversent les pratiques à l’étude ne doivent pas être considérés comme le gage d’une nostalgie tendant vers le « homecoming » ou le retour à un passé figé, immuable; ils devraient plutôt être vus comme relevant d’un engagement réflexif eu égard au passage du temps à travers les productions de mémoires individuelles et culturelles. L’exploration empirique s’effectue par le biais d’entrevues semi-directives itératives et in situ réalisées avec quatre répondants. Les propos que j’ai recueillis et retranscris forment la matière à partir de laquelle je construis mon analyse qui permettant ainsi de mettre en évidence la complexité des activités liées aux vinyles ainsi que les différents aspects mémoriels et temporels qu’ils mettent en œuvre.This thesis explores the vinyl practices and demonstrates how nostalgia serves/appears as one of the mediations. Based on Svetlana Boym’s (2002) notion of nostalgia, this paper will understand these practices as a place where both restorative and reflexive nostalgia coexist. It will be argued, more specifically, that the reconstructions of past and the elements of authenticity — which are inextricably linked to the vinyl practices — cannot be taken as the pledge of nostalgia that would lean towards a “homecoming” or return to a fixed past, but rather as the ability to engage in reflexivity regarding the passing of time through individual and cultural memory productions. To do so, iterative and in situ interviews were conducted with four referees. The analysis of such issues is based on the comments collected from the interviews, which highlight the complexity of the vinyl activities and the different memorial and temporal aspects that are embodied within them

Enhancing mobile services with DVB-S2X superframing

DVB-S2X is the cornerstone for satellite communication standards forming the state of the art of broadband satellite waveforms. In this paper, we propose new application scenarios and advanced techniques, including a reference design implementing superframing, predistortion, a robust synchronization chain, and a plug-and-play channel interleaver. We demonstrate by means of software simulations and hardware tests that the DVB-S2X can be a common technology enabler for land-mobile, aeronautical, and maritime satellite scenarios in addition to the more traditional VSAT scenario, even in very challenging conditions (eg, very low signal-to-noise ratio)

Civil Aircraft for the regular investigation of the atmosphere based on an instrumented container: The new CARIBIC system

An airfreight container with automated instruments for measurement of atmospheric gases and trace compounds was operated on a monthly basis onboard a Boeing 767-300 ER of LTU International Airways during long-distance flights from 1997 to 2002 (CARIBIC, Civil Aircraft for Regular Investigation of the Atmosphere Based on an Instrument Container, http://www.caribic-atmospheric.com). Subsequently a more advanced system has been developed, using a larger capacity container with additional equipment and an improved inlet system. CARIBIC phase #2 was implemented on a new long-range aircraft type Airbus A340-600 of the Lufthansa German Airlines (Star Alliance) in December 2004, creating a powerful flying observatory. The instrument package comprises detectors for the measurement of O3, total and gaseous H2O, NO and NOy, CO, CO2, O2, Hg, and number concentrations of sub-micrometer particles (>4 nm, >12 nm, and >18 nm diameter). Furthermore, an optical particle counter (OPC) and a proton transfer mass spectrometer (PTR-MS) are incorporated. Aerosol samples are collected for analysis of elemental composition and particle morphology after flight. Air samples are taken in glass containers for laboratory analyses of hydrocarbons, halocarbons and greenhouse gases (including isotopic composition of CO2) in several laboratories. Absorption tubes collect oxygenated volatile organic compounds. Three differential optical absorption spectrometers (DOAS) with their telescopes mounted in the inlet system measure atmospheric trace gases such as BrO, HONO, and NO2. A video camera mounted in the inlet provides information about clouds along the flight track. The flying observatory, its equipment and examples of measurement results are reported

High-resolution laser system for the S3-Low Energy Branch

In this paper we present the first high-resolution laser spectroscopy results obtained at the GISELE laser laboratory of the GANIL-SPIRAL2 facility, in preparation for the first experiments with the S$^3$-Low Energy Branch. Studies of neutron-deficient radioactive isotopes of erbium and tin represent the first physics cases to be studied at S$^3$. The measured isotope-shift and hyperfine structure data are presented for stable isotopes of these elements. The erbium isotopes were studied using the $4f^{12}6s^2$ $^3H_6 \rightarrow 4f^{12}(^3 H)6s6p$ $J = 5$ atomic transition (415 nm) and the tin isotopes were studied by the $5s^25p^2 (^3P_0) \rightarrow 5s^25p6s (^3P_1)$ atomic transition (286.4 nm), and are used as a benchmark of the laser setup. Additionally, the tin isotopes were studied by the $5s^25p6s (^3P_1) \rightarrow 5s^25p6p (^3P_2)$ atomic transition (811.6 nm), for which new isotope-shift data was obtained and the corresponding field-shift $F_{812}$ and mass-shift $M_{812}$ factors are presented

Les lycéens sur le vif

Boumard Patrick. Les lycéens sur le vif. In: Raison présente, n°82, 2e trimestre 1987. Pour changer l'université. pp. 49-57

Terral (Hervé).- Profession professeur.

Boumard Patrick. Terral (Hervé).- Profession professeur.. In: Revue française de pédagogie, volume 127, 1999. Approches cliniques d'inspiration psychanalytique. pp. 191-192

Vasquez (Ana), Martinez (Isabel) (dir.). - Recherches ethnographiques en Europe et en Amérique du Nord

Boumard Patrick. Vasquez (Ana), Martinez (Isabel) (dir.). - Recherches ethnographiques en Europe et en Amérique du Nord. In: Revue française de pédagogie, volume 134, 2001. Situations de handicaps et institution scolaire. pp. 189-190

Vasquez (Ana), Martinez (Isabel) (dir.). - Recherches ethnographiques en Europe et en Amérique du Nord

Boumard Patrick. Vasquez (Ana), Martinez (Isabel) (dir.). - Recherches ethnographiques en Europe et en Amérique du Nord. In: Revue française de pédagogie, volume 134, 2001. Situations de handicaps et institution scolaire. pp. 189-190

Woods Peter (1990). — L'ethnographie de l'école

Boumard Patrick. Woods Peter (1990). — L'ethnographie de l'école. In: Recherche & Formation, N°9, 1991. Le journal de classe. pp. 136-138