13,096 research outputs found
A note on the annual cycles of surface heat balance and temperature over a continent
A surface heating function, defined as the ratio of the time derivative of the mean annual temperature curve to the surface heat balance, is computed from the annual temperature range and heat balance data for the North American continent. An annual cycle of the surface heat balance is then reconstructed from the surface heating function and the annual temperature curve, and an annual cycle of evaporative plus turbulent heat loss is recomputed from the annual cycles of radiation balance and surface heat balance for the continent. The implications of these results for long range weather forecasting are discussed
Rethinking Statutory Advice: A Working Partyâs Solution
This article describes the response of an Educational Psychology Service (EPS) to a marked increase in requests from their Local Authority (LA) for statutory advice reports. A working party was developed to consider how educational psychologists (EPs) might write statutory reports for the LA in a time-efficient manner, without compromising the quality of the advice given. The working party met during the 2015â16 academic year, in which the psychological advice format was streamlined, piloted and eventually launched. The article concludes with some reflections on the wider issues that arose from discussions within the working party and, in particular, the impact of increased statutory demands on other aspects of EP practice
An Anomalous UV Extension in NGC6251
Deep U-band FOC images of the nuclear region of NGC6251 have revealed a
region of extended emission which is most probably radiation scattered from a
continuum source in the nucleus. This radiation lies interior to a dust ring,
is nearly perpendicular to the radio jet axis, and is seen primarily in the FOC
U and b filters. The extension has a low observed polarization(), and
is unlikely to arise from line emission. We know of no other examples similar
to what we have found in NGC 6251, and we offer some tentative explanations.
The nuclear morphology shows clear similarities to that seen in the nucleus of
NGC 4261 except for the extended U-band radiation.Comment: 14 pages AAStex format + 4 figures; accepted for publication in ApJ
Letter
Holography in the EPRL Model
In this research announcement, we propose a new interpretation of the EPR
quantization of the BC model using a functor we call the time functor, which is
the first example of a CLa-ren functor. Under the hypothesis that the universe
is in the Kodama state, we construct a holographic version of the model.
Generalisations to other CLa-ren functors and connections to model category
theory are considered.Comment: research announcement. Latex fil
Interrelationships among international stock market indices: Europe, Asia and the Americas
In this paper, we investigate the price interdependence between seven international stock markets, namely Irish, UK, Portuguese, US, Brazilian, Japanese and Hong Kong, using a new testing method, based on the wavelet transform to reconstruct the data series, as suggested by Lee (2002). We find evidence of intra-European (Irish, UK and Portuguese) market co-movements with the US market also
weakly influencing the Irish market. We also find co-movement between the US and Brazilian markets and similar intra-Asian co-movements (Japanese and Hong Kong). Finally, we conclude that the circle of impact
is that of the European markets (Irish, UK and Portuguese) on both American markets (US and Brazilian), with these in turn impacting on the Asian markets (Japanese and Hong Kong) which in turn influence the European markets. In summary, we find evidence for intra-continental relationships and an increase in importance of
international spillover effects since the mid 1990âs, while the importance of historical transmissions has decreased since the beginning of this century
Interdependence between emerging and major markets
In this paper, we investigate the price spillover effects among two developed
markets, (the US and the UK ), and two developing markets, (Irish
and Portuguese), using a new testing method suggested by Lee (2002).
We find that there are interrelationships between any two of the Irish,
the UK and Portuguese markets and that the co-movements between the
emerging markets and the US are statistically significant but weak. We
also found that the US market is slightly influenced by the UK but not
vice versa
Modelling drug coatings: A parallel cellular automata model of ethylcellulose-coated microspheres
Pharmaceutical companies today face a growing demand for more complex drug designs. In the past few decades, a number of probabilistic models have been developed, with the aim of improving insight on microscopic features of these complex designs. Of particular interest are models of controlled release systems, which can provide tools to study targeted dose delivery. Controlled release is achieved by using polymers with different dissolution characteristics. We present here an approach for parallelising a large-scale model of a drug delivery system based on Monte Carlo methods, as a framework for Cellular Automata mobility. The model simulates drug release in the gastro-intestinal tract, from coated ethylcellulose microspheres. The objective is high performance simulation of coated drugs for targeted delivery. The overall aim is to understand the importance of various molecular effects with respect to system evolution over time. Important underlying mechanisms of the process, such as erosion and diffusion, are described
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