512 research outputs found

    L'ORGANISATION EN TENSION ENTRE ROUTINE ET CREATION : UN AUTRE REGARD SUR L'INSTRUMENTATION DE GESTION

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    Les organisations sont écartelées entre des logiques contradictoires : il leur faut créer pour " rester dans la course ", mais il ne peut y avoir de création durable sans coexistence avec des routines. Créer signifie rompre avec des schémas préétablis, gérer sa propre peur de l'inconnu et gérer les conflits que la rupture créative ne marquera pas de générer avec les tenants de l'orthodoxie sécurisante. Nous tenterons d'éclairer cette tension dialectique entre création et routine par un détour philosophique, puis grâce à la complémentarité des regards psychologique et sociologique.création; innovation; routine; peur

    Rotational Spectroscopy of PAHs: Acenaphthene, Acenaphthylene and Fluorene

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    Pure rotational spectra of three polycyclic aromatic hydrocarbons - acenaphthene, acenaphthylene and fluorene - have been obtained by Fourier transform microwave spectroscopy of a molecular beam and subsequently by millimeter wave absorption spectroscopy for acenaphthene and fluorene. The data presented here will be useful for deep radio astronomical searches for PAHs employing large radio telecopes.Comment: 2 pages, 1 figure (uses iaus.sty), to appear in IAU Symposium No. 231, Astrochemistry - Recent Successes and Current Challenges, eds. D. C. Lis, G. A. Blake & E. Herbst (Cambridge Univ. Press

    Examining instruction, achievement, and equity with NAEP mathematics data.

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    The purpose of this article is two-fold. First, it reports on a study of the distribution of reform-oriented instructional practices among Black, White and Hispanic students, and the relationship between those practices and student achievement. The study identified many similarities in instruction across student groups, but there were some differences, such as Black and Hispanic students being assessed with multiple-choice tests significantly more often than were White students. Using hierarchical linear modeling, this study identified several significant positive—and no negative—relationships between reform-oriented practices and 4th-grade student achievement. Specifically, teacher emphasis on non-number mathematics strands, collaborative problem solving, and teacher knowledge of the NCTM Standards were positive predictors of achievement. An analysis of interaction effects indicated that the relationships between various instructional practices and achievement were roughly similar for White, Black and Hispanic students. The second purpose of this article is to make comparisons with another study that used the same NAEP data, but drew very different conclusions about the potential for particular instructional practices to alleviate inequities. A study published in EPAA by Wenglinsky (2004) concluded that school personnel can eliminate race-related gaps within their schools by changing their instructional practices. Similarities and differences between these two studies are discussed to illuminate how a researcher's framing, methods, and interpretations can heavily influence a study's conclusions. Ultimately, this article argues that the primary conclusion of Wenglinsky's study is unwarranted. Keywords: equity, hierarchical linear modeling; mathematics achievement; mathematics instruction; NAEP

    Accounting to the end of life. Scarcity, performance and death

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    This paper follows accounting to the end of life. We question how accounting can influence the way life ends to understand the conceptions of life, health and normality that inform accounting valuations of life itself. Specifically, we conducted an ethnographic study of a hospital's geriatrics and palliative care unit to analyse how accounting influences, and is informed by, conceptions of what makes a life worth living. The end of life problematises accounting and makes visible assumptions on what constitutes a good life. We draw on Agamben and Canguilhem to show that accounting builds on, and reproduces, several discursive positions – scarcity and the need for efficient resource allocation; separability and the possibility to isolate segments; commensuration and the possibility to relate each situation to standardised categories; valuation and the reduction of life to exchange values; normativity and the definition of normality through statistical regularities. We then discuss the kind of life that is included in accounting valuations of life itself and the dehumanising consequences accounting practices can have on the end of life. We conclude with opening questions on how to imagine forms of accounting that would acknowledge our vulnerability and allow for an art of living while dying.</p

    Grain Surface Models and Data for Astrochemistry

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    AbstractThe cross-disciplinary field of astrochemistry exists to understand the formation, destruction, and survival of molecules in astrophysical environments. Molecules in space are synthesized via a large variety of gas-phase reactions, and reactions on dust-grain surfaces, where the surface acts as a catalyst. A broad consensus has been reached in the astrochemistry community on how to suitably treat gas-phase processes in models, and also on how to present the necessary reaction data in databases; however, no such consensus has yet been reached for grain-surface processes. A team of ∼25 experts covering observational, laboratory and theoretical (astro)chemistry met in summer of 2014 at the Lorentz Center in Leiden with the aim to provide solutions for this problem and to review the current state-of-the-art of grain surface models, both in terms of technical implementation into models as well as the most up-to-date information available from experiments and chemical computations. This review builds on the results of this workshop and gives an outlook for future directions

    Seeds of Life in Space (SOLIS). III. Zooming Into the Methanol Peak of the Prestellar Core L1544

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    Toward the prestellar core L1544, the methanol (CH3OH) emission forms an asymmetric ring around the core center, where CH3OH is mostly in solid form, with a clear peak at 4000 au to the northeast of the dust continuum peak. As part of the NOEMA Large Project SOLIS (Seeds of Life in Space), the CH3OH peak has been spatially resolved to study its kinematics and physical structure and to investigate the cause behind the local enhancement. We find that methanol emission is distributed in a ridge parallel to the main axis of the dense core. The centroid velocity increases by about 0.2 km s−1 and the velocity dispersion increases from subsonic to transonic toward the central zone of the core, where the velocity field also shows complex structure. This could be an indication of gentle accretion of material onto the core or the interaction of two filaments, producing a slow shock. We measure the rotational temperature and show that methanol is in local thermodynamic equilibrium (LTE) only close to the dust peak, where it is significantly depleted. The CH3OH column density, N tot(CH3OH), profile has been derived with non-LTE radiative transfer modeling and compared with chemical models of a static core. The measured N tot(CH3OH) profile is consistent with model predictions, but the total column densities are one order of magnitude lower than those predicted by models, suggesting that the efficiency of reactive desorption or atomic hydrogen tunneling adopted in the model may be overestimated; or that an evolutionary model is needed to better reproduce methanol abundance

    Morphostructuralanalysis of an alpine Debris flows catchment: Implication for debris supply

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    Rock slope instabilities are implicitly linked to the supply of sediment and debris recharging channels prone to debris flow. Hence, the incorporation of bed-rock structure and terrain morphology can be relevant in the analysis of sediment budget and debris flow hazard assessment. Here, the mode of debris production of the Manival catchment (northern French Alps) is documented by the study of its morphostructural aspects extracted from high resolution DEM. Terrain implication in the process of debris supply is evaluated by: a) A systematic classi cation of the major morphological units based on the slope gradient that enables a spatial analysis of zones of debris production and deposition. b) A detailed structural analysis performed on DEM in order to identify potential unstable slopes. c) An analysis of the gullies orientation that informs in term of structural control of the sources zones. d) Localisation of high density joints sets that document about whether sources of continuous debris production are controlled by the structural setting of the catchment. These DEM-based indicators can be used as proxies for assessing the influences of the current topography and enable to quantify a degree of susceptibility to mass wasting and hillslope erosion activity. This present contribution suggests some directions for characterizing sediment flux dynamic in small alpine catchment

    Supporting Japanese mothers of children with ADHD: cultural adaptation of the New Forest Parent Training Programme

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    International practice guidelines recommend medication and behavioral intervention as evidenced-based treatments for attention deficit hyperactivity disorder (ADHD). Currently in Japan, the availability of non pharmacological interventions for ADHD is limited. We report the results of a pilot and a proof-of-concept study for a new behavioral intervention for Japanese mothers of children with ADHD. The pilot study delivered a standard six-session behavioral intervention and two parent-support sessions. Participants approved the group format and requested additional support to change parenting practices and behavioral strategies targeting ADHD symptoms. For the proof-of-concept study, the intervention was revised to include five sessions of pre intervention support followed by six sessions of the New Forest Parent Training Programme (NFPP), an evidence based intervention for ADHD. The revised intervention, NFPP-Japan, was associated with reductions in the mothers’ reports of children's ADHD symptoms and aggression, more effective parenting practices, and reduced parenting stress. The pilot and proof-of-concept studies indicate that it is possible to successfully modify Western behavioral interventions for Japanese mothers and to justify a randomized controlled trial evaluation of the NFPP-Japan, which is currently underway

    Brief Communication: A new testing field for debris flow warning systems

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    Abstract. A permanent field installation for the systematic test of debris flow warning systems and algorithms has been equipped on the eastern Italian Alps. The installation was also designed to produce didactic videos and it may host informative visits. The populace education is essential and should be envisaged in planning any research on hazard mitigation interventions: this new installation responds to this requirement and offers an example of integration between technical and informative needs. The occurrence of a debris flow in 2014 allowed the first tests of a new warning system under development and to record an informative video on its performances. This paper will provide a description of the installation and an account of the first technical and informative results obtained

    Accompagner la mort, organiser la fin de vie Ethnographie d’un service de soins aigus de gériatrie

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    RésuméCet article1 porte sur l’organisation de la mort dans le contexte hospitalier. Au-delà des questions éthiques, les auteurs étudient les enjeux techniques, professionnels et sociologiques de la gestion hospitalière de la fin de vie. Une étude ethnographique leurs a permis d’observer le travail quotidien de gériatres et leurs efforts pour organiser une « bonne » mort. Ils montrent que ce travail, largement invisible, permet d’organiser le passage vers une mort « naturelle » et « confortable », non seulement « apaisée » mais surtout accompagnée.AbstractThis paper studies the organisation of death in a hospital. Beyond ethical issues, we examine the technical, professional, and sociological stakes of the management of end of life situations. Through an ethnographic study we followed geriatricians and their efforts to organise a ‘good’ death. We show that this invisible work aims at organising the passage toward a “natural” and “confortable” death, a death that is not only “peaceful” but also accompanied
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