1,932 research outputs found
Contemporary developments in training
This paper will examine some of the significant developments in the training field in Australia in the past decade and the application of these changes to the mining industry generally, and the coal sector specifically. Three major aspects will be examined:- Competency -the use of Industry Competency Standards and how these can be used for achieving enterprise perfonnance requirements 2. Assessment -making judgements about an individual\u27s competence, and using a rigorous assessment system as the basis for the authorisation system at a mine 3. Evaluation -ways to evaluate the return on investment in training, and convincing CEO\u27s/shareholders that your training dollar is being spent wisely
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Teaching schools evaluation. Research Brief
This Research Brief reports the findings from a two-year study (2013-15) in to the work of teaching schools and their alliances commissioned by the National College for Teaching and Leadership (NCTL). The broad aim of the study was to investigate the effectiveness and impact of teaching schools on improvement, and identify the quality and scope of external support that are required to enhance these . This was achieved through combining qualitative and quantitative data collection and analysis derived from three research activities: case studies of 26 teaching schools alliances (TSAs), a national survey of the first three cohorts of 345 TSAs, and secondary research and analysis of national performance and inspection results
Flowstats: an ontology based network management tool
One of the problems that hinders large scale network management tasks is the number of possible heterogeneous data sources that provide network information and how to
focus on a desired network segment without requiring a deep knowledge of the network structure. This work investigates how
to intelligently and efficiently refine and manage a vast amount of network monitoring data sources, by using artificial intelligent
reasoning through an intuitive user interface. We aim to minimise the user interaction and required user knowledge when searching for the desired network monitoring information by refining the presented information based on user choices. The concept of Ontology is utilised to create a knowledge base of multiple different aspects of our testbed: Internal Management structure, Physical Location of data sources, and network switch meta-data
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Memories from the Margins: Violence, Conflict and Counter-Narratives
© The author(s) 2021. This supplementary issue looks at how informal, often unrecognised, memory practices are used to deal with the legacy of violent conflict as a way to heal trauma, demand justice, and build sustainable peace. By drawing on case studies from Bosnia and Herzegovina, Colombia, India, Lebanon, Northern Ireland, Rwanda, Sri Lanka, Syria, and Vietnam, the articles examine informal practices of memorialisation that challenge amnesia and hegemonic discourses of conflict by creating spaces for dialogue and exchange.British Academy (Memories from the Margins project)
Memories from the margins: violence and counter-narratives - introduction
© The author(s) 2021. This supplementary issue looks at how informal, often unrecognised, memory practices are used to deal with the legacy of violent conflict as a way to heal trauma, demand justice, and build sustainable peace. By drawing on case studies from Bosnia and Herzegovina, Colombia, India, Lebanon, Northern Ireland, Rwanda, Sri Lanka, Syria, and Vietnam, the articles examine informal practices of memorialisation that challenge amnesia and hegemonic discourses of conflict by creating spaces for dialogue and exchange
On the design of forgiving biometric security systems
This work aims to highlight the fundamental issue surrounding biometric security
systems: it's all very nice until a biometric is forged, but what do we do after that? Granted,
biometric systems are by physical nature supposedly much harder to forge than other factors
of authentication since biometrics on a human body are by right unique to the particular human
person. Yet it is also due to this physical nature that makes it much more catastrophic
when a forgery does occur, because it implies that this uniqueness has been forged as well,
threatening the human individuality; and since crime has by convention relied on identifying
suspects by biometric characteristics, loss of this biometric uniqueness has devastating consequences
on the freedom and basic human rights of the victimized individual. This uniqueness
forgery implication also raises the motivation on the adversary to forge since a successful
forgery leads to much more impersonation situations when biometric systems are used i.e.
physical presence at crime scenes, identi cation and access to security systems and premises,
access to nancial accounts and hence the ability to use the victim's nances. Depending on
the gains, a desperate highly motivated adversary may even resort to directly obtaining the
victim's biometric parts by force e.g. severing the parts from the victim's body; this poses
a risk and threat not just to the individual's uniqueness claim but also to personal safety
and well being. One may then wonder if it is worth putting one's assets, property and safety
into the hands of biometrics based systems when the consequences of biometric forgery far
outweigh the consequences of system compromises when no biometrics are used
Observation of quantum depletion in a nonequilibrium exciton-polariton condensate
The property of superfluidity, first discovered in liquid 4He, is closely
related to Bose-Einstein condensation (BEC) of interacting bosons. However,
even at zero temperature, when one would expect the whole bosonic quantum
liquid to become condensed, a fraction of it is excited into higher momentum
states via interparticle interactions and quantum fluctuations -- the
phenomenon of quantum depletion. Quantum depletion of weakly interacting atomic
BECs in thermal equilibrium is well understood theoretically but is difficult
to measure. This is even more challenging in driven-dissipative systems such as
exciton-polariton condensates(photons coupled to electron-hole pairs in a
semiconductor), since their nonequilibrium nature is predicted to suppress
quantum depletion. Here, we observe quantum depletion of an optically trapped
high-density exciton-polariton condensate by directly detecting the spectral
branch of elementary excitations populated by this process. Analysis of the
population of this branch in momentum space shows that quantum depletion of an
exciton-polariton condensate can closely follow or strongly deviate from the
equilibrium Bogoliubov theory, depending on the fraction of matter (exciton) in
an exciton-polariton. Our results reveal the effects of exciton-polariton
interactions beyond the mean-field description and call for a deeper
understanding of the relationship between equilibrium and nonequilibrium BECs.Comment: 18 pages, 5 figures, with supplementary informatio
Linear magnetoresistance in commercial n-type silicon due to inhomogeneous doping
Free electron theory tells us that resistivity is independent of magnetic
field. In fact, most observations match the semiclassical prediction of a
magnetoresistance that is quadratic at low fields before saturating. However, a
non-saturating linear magnetoresistance has been observed in exotic
semiconductors such as silver chalcogenides, lightly-doped InSb, N-doped InAs,
MnAs-GaAs composites, PrFeAsO, and epitaxial graphene. Here we report the
observation of a large linear magnetoresistance in the ohmic regime in
commonplace commercial n-type silicon wafer. It is well-described by a
classical model of spatially fluctuating donor densities, and may be amplified
by altering the aspect ratio of the sample to enhance current-jetting:
increasing the width tenfold increased the magnetoresistance at 8 T from 445 %
to 4707 % at 35 K. This physical picture may well offer insights into the large
magnetoresistances recently observed in n-type and p-type Si in the non-ohmic
regime.Comment: submitted to Nature Material
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