10,257,709 research outputs found

    Critical Perspectives on Modern Languages in Scottish Further Education 2000-2002

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    The research in this thesis focuses on issues surrounding modern language provision within Scottish further education during the period 2000-2002. The study analyses the arguments regarding the place of modern language study within Scottish further education (FE) as expressed in formal and informal discourses, and assesses the influence of socio-cultural and socio-historical assumptions on these discourses. To this end, a multi-strand and multi-level research model was adopted, examining official and other public documents, together with views expressed by stakeholders from five Scottish FE colleges and from industry. These were analysed both on their own terms and by taking into account changes in the external context. The initial focus of the study centred on the motivational characteristics of student participants. However, changes in the external context prompted the inclusion of further data into the research design and a shift of methodological emphasis, exploring the ways in which assumptions underlying data collection procedures related to labour market information and uptake of individual FE subjects may be contributing to a continuous re-affirmation that 'English is enough'. The validity of this assertion and the authority accorded to it are called into question. It is argued that the belief will increasingly limit Scottish FE students' potential to participate as self-confident and self-determining individuals in a global and multilingual economy for which their vocational education and training is ostensibly trying to prepare them. Some suggestions, arising from the research, for a more inclusive language education policy are considered

    High-contrast dark resonance on the D2 - line of 87Rb in a vapor cell with different directions of the pump - probe waves

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    We propose a novel method enabling to create a high-contrast dark resonance in the 87Rb vapor D2-line. The method is based on an optical pumping of atoms into the working states by a two-frequency, linearly-polarized laser radiation propagating perpendicularly to the probe field. This new scheme is compared to the traditional scheme involving the circularly-polarized probe beam only, and significant improvement of the dark resonance parameters is found. Qualitative considerations are confirmed by numerical calculations.Comment: 7 pages, 4 figure

    v. 80, issue 20, April 26, 2013

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    The Scowl - v.80 - n.20 - Mar 31, 2016

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    The Cowl - student newspaper of Providence College. Vol 80 - No. 20 - March 31, 2016. 20 pages

    Volume 80 No 20

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    https://dc.swosu.edu/the_southwestern/1684/thumbnail.jp

    Thermal oxidation of reactively sputtered amorphous W_(80)N_(20) films

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    The oxidation behavior of reactively sputtered amorphous tungsten nitride of composition W_(80)N_(20) was investigated in dry and wet oxidizing ambient in the temperature range of 450 °C–575 °C. A single WO_3 oxide phase is observed. The growth of the oxide follows a parabolic time dependence which is attributed to a process controlled by the diffusivity of the oxidant in the oxide. The oxidation process is thermally activated with an activation energy of 2.5 ± 0.05 eV for dry ambient and 2.35 ± 0.05 eV for wet ambient. The pre‐exponential factor of the reaction constant for dry ambient is 1.1×10^(21) Å^2/min; that for wet ambient is only about 10 times less and is equal to 1.3×10^(20) Å^2/min

    A New View of the Size-Mass Distribution of Galaxies: Using r20r_{20} and r80r_{80} instead of r50r_{50}

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    When investigating the sizes of galaxies it is standard practice to use the half-light radius, r50r_{50}. Here we explore the effects of the size definition on the distribution of galaxies in the size -- stellar mass plane. Specifically, we consider r20r_{20} and r80r_{80}, the radii that contain 20% and 80% of a galaxy's total luminosity, as determined from a Sersic profile fit, for galaxies in the 3D-HST/CANDELS and COSMOS-DASH surveys. These radii are calculated from size catalogs based on a simple calculation assuming a Sersic profile. We find that the size-mass distributions for r20r_{20} and r80r_{80} are markedly different from each other and also from the canonical r50r_{50} distribution. The most striking difference is in the relative sizes of star forming and quiescent galaxies at fixed stellar mass. Whereas quiescent galaxies are smaller than star forming galaxies in r50r_{50}, this difference nearly vanishes for r80r_{80}. By contrast, the distance between the two populations increases for r20r_{20}. Considering all galaxies in a given stellar mass and redshift bin we detect a significant bimodality in the distribution of r20r_{20}, with one peak corresponding to star forming galaxies and the other to quiescent galaxies. We suggest that different measures of the size are tracing different physical processes within galaxies; r20r_{20} is closely related to processes controlling the star formation rate of galaxies and r80r_{80} may be sensitive to accretion processes and the relation of galaxies with their halos.Comment: Resubmitted to ApJL after responding to referee's comments. Please also see Mowla et al. submitted today as wel
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