6,435 research outputs found
Analogy of the slow dynamics between the supercooled liquid and the supercooled plastic crystal states of difluorotetrachloroethane
Slow dynamics of difluorotetrachloroethane in both supercooled plastic
crystal and supercooled liquid states have been investigated from Molecular
Dynamics simulations. The temperature and wave-vector dependence of collective
dynamics in both states are probed using coherent dynamical scattering
functions . Our results confirm the strong analogy between molecular
liquids and plastic crystals for which -relaxation times and
non-ergodicity parameters are controlled by the non trivial static correlations
as predicted by the Mode Coupling Theory. The use of infinitely thin
needles distributed on a lattice as model of plastic crystals is discussed
Onset of slow dynamics in difluorotetrachloroethane glassy crystal
Complementary Neutron Spin Echo and X-ray experiments and Molecular Dynamics
simulations have been performed on difluorotetrachloroethane (CFCl2-CFCl2)
glassy crystal. Static, single-molecule reorientational dynamics and collective
dynamics properties are investigated. The orientational disorder is
characterized at different temperatures and a change in nature of rotational
dynamics is observed. We show that dynamics can be described by some scaling
predictions of the Mode Coupling Theory (MCT) and a critical temperature
is determined. Our results also confirm the strong analogy between
molecular liquids and plastic crystals for which -relaxation times and
non-ergodicity parameters are controlled by the non trivial static correlations
as predicted by MCT
Effectiveness of new agri-environment schemes in conserving arable plants in intensively farmed landscapes
REM: A Collaborative Framework for Building Indigenous Cultural Competence
© 2015, © The Author(s) 2015. The well-documented health disparities between the Australian Indigenous and non-Indigenous population mandates a comprehensive response from health professionals. This article outlines the approach taken by one faculty of health in a large urban Australian university to enhance cultural competence in students from a variety of fields. Here we outline a collaborative and deeply respectful process of Indigenous and non-Indigenous university staff collectively developing a model that has framed the embedding of a common faculty Indigenous graduate attribute across the curriculum. Through collaborative committee processes, the development of the principles of “Respect; Engagement and sharing; Moving forward” (REM) has provided both a framework and way of “being and doing” our work. By drawing together the recurring principles and qualities that characterize Indigenous cultural competence the result will be students and staff learning and bringing into their lives and practice, important Indigenous cultural understanding
Sodium p-nitrophenolate tetrahydrate
The structure of sodium p-nitrophenolate tetrahydrate,
Na+�C6H4NO3
-�4H2O, is presented. The nature of the
hydrogen and coordination bonds in this structure is discussed
and compared with that of sodium p-nitrophenolate dihydrate
Test beam Characterizations of 3D Silicon Pixel detectors
3D silicon detectors are characterized by cylindrical electrodes
perpendicular to the surface and penetrating into the bulk material in contrast
to standard Si detectors with planar electrodes on its top and bottom. This
geometry renders them particularly interesting to be used in environments where
standard silicon detectors have limitations, such as for example the radiation
environment expected in an LHC upgrade. For the first time, several 3D sensors
were assembled as hybrid pixel detectors using the ATLAS-pixel front-end chip
and readout electronics. Devices with different electrode configurations have
been characterized in a 100 GeV pion beam at the CERN SPS. Here we report
results on unirradiated devices with three 3D electrodes per 50 x 400 um2 pixel
area. Full charge collection is obtained already with comparatively low bias
voltages around 10 V. Spatial resolution with binary readout is obtained as
expected from the cell dimensions. Efficiencies of 95.9% +- 0.1 % for tracks
parallel to the electrodes and of 99.9% +- 0.1 % at 15 degrees are measured.
The homogeneity of the efficiency over the pixel area and charge sharing are
characterized.Comment: 5 pages, 7 figure
Working together to make Indigenous health care curricula everybody's business: A graduate attribute teaching innovation report
© eContent Management Pty Ltd. Previously there has been commitment to the idea that Indigenous curricula should be taught by Indigenous academic staff, whereas now there is increasing recognition of the need for all academic staff to have confidence in enabling Indigenous cultural competency for nursing and other health professional students. In this way, Indigenous content can be threaded throughout a curriculum and raised in many teaching and learning situations, rather than being siloed into particular subjects and with particular staff. There are many sensitivities around this change, with potential implications for Indigenous and non-Indigenous students and staff, and for the quality of teaching and learning experiences. This paper reports on a collaborative process that was used to reconceptualise how Indigenous health care curricula would be positioned throughout a programme and who would or could work with students in this area. Effective leadership, establishing a truly collaborative environment, acknowledging fears and perceived inadequacies, and creating safe spaces for sharing and learning were crucial in effecting this change
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