10,257,709 research outputs found
Critical Perspectives on Modern Languages in Scottish Further Education 2000-2002
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
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
The Scowl - v.80 - n.20 - Mar 31, 2016
The Cowl - student newspaper of Providence College. Vol 80 - No. 20 - March 31, 2016. 20 pages
Volume 80 No 20
https://dc.swosu.edu/the_southwestern/1684/thumbnail.jp
Thermal oxidation of reactively sputtered amorphous W_(80)N_(20) films
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 and instead of
When investigating the sizes of galaxies it is standard practice to use the
half-light radius, . Here we explore the effects of the size definition
on the distribution of galaxies in the size -- stellar mass plane.
Specifically, we consider and , 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 and are
markedly different from each other and also from the canonical
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 , this difference
nearly vanishes for . By contrast, the distance between the two
populations increases for . Considering all galaxies in a given stellar
mass and redshift bin we detect a significant bimodality in the distribution of
, 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; is closely related to
processes controlling the star formation rate of galaxies and 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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