1,088 research outputs found
Handbook for Learning-centred evaluation of Computer-facilitated learning projects in higher education
This handbook supports a project funded by the Australian Government Committee for University Teaching and Staff Development (CUTSD). The amended project title is âStaff Development in Evaluation of Technology-based Teaching Development Projects: An Action Inquiry Approachâ.
The project is hosted by Murdoch University on behalf of the Australasian Society for Computers in Learning in Tertiary Education (ASCILITE), as a consortium of 11 universities.
The rationale of the project is to guide a group of university staff through the evaluation of a Computer-facilitated Learning (CFL1) project by a process of action inquiry and mentoring, supported by the practical and theoretical material contained in this handbook
Mechanisms Affecting Recruitment of Yellow Perch in Lake Michigan
Report issued on: August 2001INHS Technical Report prepared for Great Lakes Fishery Trus
Wetting and contact-line effects for spherical and cylindrical droplets on graphene layers: A comparative molecular-dynamics investigation
In Molecular Dynamics (MD) simulations, interactions between water molecules
and graphitic surfaces are often modeled as a simple Lennard-Jones potential
between oxygen and carbon atoms. A possible method for tuning this parameter
consists of simulating a water nanodroplet on a flat graphitic surface,
measuring the equilibrium contact angle, extrapolating it to the limit of a
macroscopic droplet and finally matching this quantity to experimental results.
Considering recent evidence demonstrating that the contact angle of water on a
graphitic plane is much higher than what was previously reported, we estimate
the oxygen-carbon interaction for the recent SPC/Fwwater model. Results
indicate a value of about 0.2 kJ/mol, much lower than previous estimations. We
then perform simulations of cylindrical water filaments on graphitic surfaces,
in order to compare and correlate contact angles resulting from these two
different systems. Results suggest that modified Young's equation does not
describe the relation between contact angle and drop size in the case of
extremely small systems and that contributions different from the one deriving
from contact line tension should be taken into account.Comment: To be published on Physical Review E (http://pre.aps.org/
The Health Outcomes and Health Service Needs of the Martu and Nyiyaparli People of Northwest Western Australia: A Grey Literature Review
Introduction: Health outcomes for Australian Aboriginal and Torres Strait peoples are very poor. This is considerably worse in remote regions. The East Pilbara, where the Aboriginal and Torres Strait Islander communities of the Martu and Nyiyaparli people reside, is one such remote region.
Methods: This review explored the grey literature relating to the health services and health outcomes of the Martu and Nyiyaparli people. Search strategies included specific search terms as well as the systematic search of specific websites likely to inform this review. To ensure relevance of the data, the review incorporated documents published in the last five years and obtained statistical data at two different population levels (SA3 and Indigenous Area). Both SA3s and IAREs are geographical areas utilised by the Australian Bureau of Statistics for the attainment of statistical data; however, IAREs were created for more specific data related to Aboriginal and Torres Strait Islander people.
Results: The main findings from this review were that health outcomes for the Aboriginal and Torres Strait Islander peoples of the East Pilbara were poor, with health indicator trends that were worse than nationwide averages. Additionally, the review found that the healthcare workforce shortages common to very remote areas across Australia were particularly problematic in the East Pilbara.
Conclusion: In addition to seeking improved health outcomes, this project responds to calls from this community to move from the ârepair shopâ model of healthcare to an upstream preventative model by providing a context of the current health issues in this East Pilbara region
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Examining Visual Field Loss in Patients in Glaucoma Clinics During Their Predicted Remaining Lifetime
Purpose.: To evaluate the proportion of patients in glaucoma clinics progressing at rates that would result in visual disability within their expected lifetime.
Methods.: This retrospective study used visual field (VF) series of at least 3 yearsâ duration from 3790 UK patients in glaucoma clinics calculating rates of loss for each eye using linear regression of mean deviation (MD) over time. Residual life expectancies derived from the UK Office of National Statistics actuarial tables for each patient were combined with these rates to estimate predicted MDs at end of expected lifetime. The proportion of patients projected to progress to visual impairment (MD: â14 dB or worse) or statutory blindness (MD: â22 dB or worse) in both eyes before end of expected lifetime was calculated.
Results.: Only 3.0% (95% confidence interval [CI] 2.7%â3.4%) of patient eyes progressed at faster than â1.5 dB/year (n = 7149 eyes). Of those patients with both eyes followed, 5.2% (CI 4.5%â6.0%) were predicted to progress to statutory blindness, with a further 10.4% (CI 9.4%â11.4%) reaching visual impairment in their lifetime. More than 90% (CI 85.7%â94.3%) of patients predicted to progress to statutory blindness, had an MD worse than â6 dB in at least one eye at presentation.
Conclusions.: This modeling exercise indicates that most patients in glaucoma clinics are not at high risk of progressing to statutory blindness. The likelihood of patients suffering impairment in their lifetimes is linked to VF loss at presentation, which illuminates the importance of reliably detecting significant VF defects in primary care
Notes On a Group of Cases Illustrating The Co-Existence of Scarlet Fever and Measles in The Same Individual
The Radio Afterglow and Host Galaxy of the Dark GRB 020819
Of the fourteen gamma-ray bursts (GRBs) localized to better than 2' radius
with the SXC on HETE-2, only two lack optical afterglow detections, and the
high recovery rate among this sample has been used to argue that the fraction
of truly dark bursts is ~10%. While a large fraction of earlier dark bursts can
be explained by the failure of ground-based searches to reach appropriate
limiting magnitudes, suppression of the optical light of these SXC dark bursts
seems likely. Here we report the discovery and observation of the radio
afterglow of GRB 020819, an SXC dark burst, which enables us to identify the
likely host galaxy (probability of 99.2%) and hence the redshift (z=0.41) of
the GRB. The radio light curve is qualitatively similar to that of several
other radio afterglows, and may include an early-time contribution from the
emission of the reverse shock. The proposed host is a bright R = 19.5 mag
barred spiral galaxy, with a faint R ~ 24.0 mag "blob'' of emission, 3" from
the galaxy core (16 kpc in projection), that is coincident with the radio
afterglow. Optical photometry of the galaxy and blob, beginning 3 hours after
the burst and extending over more than 100 days, establishes strong upper
limits to the optical brightness of any afterglow or associated supernova.
Combining the afterglow radio fluxes and our earliest R-band limit, we find
that the most likely afterglow model invokes a spherical expansion into a
constant-density (rather than stellar wind-like) external environment; within
the context of this model, a modest local extinction of A_V ~ 1 mag is
sufficient to suppress the optical flux below our limits.Comment: 7 pages, 2 figures. ApJ, in press. For more info on dark bursts, see
http://www.astro.ku.dk/~pallja/dark.htm
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