3,391 research outputs found
Risk premia in Australian interest rates
The level of and movements in interest rates and the exchange rate can have a substantial impact on the economic performance of Australia's primary industries. Whether a country and/or exchange risk premium has resulted in higher interest rates and increased volatility in the exchange rate is therefore important to these industries. There is some evidence that a small country risk premium may have emerged during the early 1990s. In line with earlier studies, however, no evidence was found of such a premium during the 1980s. A further finding is that any exchange risk premium may have declined over the last decade or so. Possible links between risk premia and Australia's foreign debt and current account deficits are also examined.Financial Economics, Risk and Uncertainty,
Responding to research evidence in Parliament: a case study on selective education policy
This research focusses on how members of the UK Parliament engaged with evidence in relation to the policy decision leading to the Selective Schools Expansion Fund, a policy designed to enable the existing 163 English Grammar Schools to apply for additional funds to expand their intake. Although a small case study, the narrow focus provides a fertile setting for analysis of the relationship between research evidence, Parliamentary debates, and policy decisions. The article provides contextual background in relation to the dominant political partiesā (Conservative and Labour) education policy manifesto statements and a discussion on the nature and understanding of evidence. Particular attention is given to how evidence can be used to support claims and the importance of justified warrants. Using NVivo software, we identified the thematic content of 11 Parliamentary debates and analysed the findings using descriptive statistics, which we tested with a playful, carnivalesque extrapolation of the data. Argumentative analysis shows that within the debates a number of rhetorical tools are used to avoid empirical evidence, including the deployment of a āmoral sidestepā which discourse analysis reveals in this case to be the repeated communication that grammar schools are āgoodā. In this way, Ofsted ratings are conflated with moral goodness, leading to a disproportionate diversion of school funding in their favour. This case study exposes strengths and weaknesses of Parliamentary debate, which might be relevant to educational researchers who focus on evidence-based policy and to the policy makers and other stakeholders who engage with the evidence such researchers offer
Strategies for enhancing quantum entanglement by local photon subtraction
Subtracting photons from a two-mode squeezed state is a well-known method to
increase entanglement. We analyse different strategies of local photon
subtraction from a two-mode squeezed state in terms of entanglement gain and
success probability. We develop a general framework that incorporates
imperfections and losses in all stages of the process: before, during, and
after subtraction. By combining all three effects into a single efficiency
parameter, we provide analytical and numerical results for subtraction
strategies using photon-number-resolving and threshold detectors. We compare
the entanglement gain afforded by symmetric and asymmetric subtraction
scenarios across the two modes. For a given amount of loss, we identify an
optimised set of parameters, such as initial squeezing and subtraction beam
splitter transmissivity, that maximise the entanglement gain rate. We identify
regimes for which asymmetric subtraction of different Fock states on the two
modes outperforms symmetric strategies. In the lossless limit, subtracting a
single photon from one mode always produces the highest entanglement gain rate.
In the lossy case, the optimal strategy depends strongly on the losses on each
mode individually, such that there is no general optimal strategy. Rather,
taking losses on each mode as the only input parameters, we can identify the
optimal subtraction strategy and required beam splitter transmissivities and
initial squeezing parameter. Finally, we discuss the implications of our
results for the distillation of continuous-variable quantum entanglement.Comment: 13 pages, 11 figures. Updated version for publicatio
Continuous phase stabilization and active interferometer control using two modes
We present a computer-based active interferometer stabilization method that
can be set to an arbitrary phase difference and does not rely on modulation of
the interfering beams. The scheme utilizes two orthogonal modes propagating
through the interferometer with a constant phase difference between them to
extract a common phase and generate a linear feedback signal. Switching times
of 50ms over a range of 0 to 6 pi radians at 632.8nm are experimentally
demonstrated. The phase can be stabilized up to several days to within 3
degrees.Comment: 3 pages, 2 figure
When It\u27s Moonlight Mary Darling \u27Neath the Old Grape Arbor Shade
VERSE 1An old grape arbor down in dear old Dixie,A little bench beneath itās friendly shade.Thereās where my heart with tender love is roaming,Thereās where I left a little Dixie maid.The birds are North again and gaily singing,Is seems they sing in sad and mournful tone.Iām writing her today in love lines pleading,Beneath the arbor wait for me alone.
CHORUSWhen itās moonlight, Mary darling,āNeath the old grape arbor shade,Promise that youāll renew,dear,Old time promises you made,Then Iāll kiss you and caress you,To my heart againIāll press you,When itās moonlight, Mary darlingāNeath the old grape arbor shade.
VERSE 2In fancy I can hear the joy bells ringing,While orange blossoms crown my Dixie maid.With welcome smile sheās waiting for my coming,As moonlightās stealing, āneath the arbor shade.Beside her down the lane to church I wander,At last sheās mine I own her heart and hand.Sweet dreams in fancy once more take me homeward,Beneath the arbor down in Dixie Land.
CHORU
Let Me Crown You Queen Of May With Orange Blossoms
https://digitalcommons.library.umaine.edu/mmb-vp/1967/thumbnail.jp
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