6,874 research outputs found
Correlation Functions and AdS/LCFT Correspondence
Correlation functions of Logarithmic conformal field theory is investigated
using the ADS/CFT correspondence and a novel method based on nilpotent weights
and 'super fields'. Adding an specific form of interaction, we introduce a
perturbative method to calculate the correlation functions.Comment: 11 pages, 4 figure
Regulating the fast-food landscape: Canadian news media representation of the Healthy Menu Choices Act
With the rapid rise of fast food consumption in Canada, Ontario was the first province to legislate menu labelling requirements via the enactment of the Healthy Menu Choice Act (HMCA). As the news media plays a significant role in policy debates and the agenda for policymakers and the public, the purpose of this mixed-methods study was to clarify the manner in which the news media portrayed the strengths and critiques of the Act, and its impact on members of the community, including consumers and stakeholders. Drawing on data from Canadian regional and national news outlets, the major findings highlight that, although the media reported that the HMCA was a positive step forward, this was tempered by critiques concerning the ineffectiveness of using caloric labelling as the sole measure of health, and its predicted low impact on changing consumption patterns on its own. Furthermore, the news media were found to focus accountability for healthier eating choices largely on the individual, with very little consideration of the role of the food industry or the social and structural determinants that affect food choice. A strong conflation of health, weight and calories was apparent, with little acknowledgement of the implications of menu choice for chronic illness. The analysis demonstrates that the complex factors associated with food choice were largely unrecognized by the media, including the limited extent to which social, cultural, political and corporate determinants of unhealthy choices were taken into account as the legislation was developed. Greater recognition of these factors by the media concerning the HMCA may evoke more meaningful and long-term change for health and food choicesYork University Librarie
Modeling batch annealing process using data mining techniques for cold rolled steel sheets
The annealing process is one of the important operations in production of cold rolled steel sheets, which significantly influences the final product quality of cold rolling mills. In this process, cold rolled coils are heated slowly to a desired temperature and then cooled. Modelling of annealing process (prediction of heating and cooling time and trend prediction of coil core temperature) is a very sophisticated and expensive work. Modelling of annealing process can be done by using of thermal models. In this paper, Modelling of steel annealing process is proposed by using data mining techniques. The main advantages of modelling with data mining techniques are: high speed in data processing, acceptable accuracy in obtained results and simplicity in using of this method. In this paper, after comparison of results of some data mining techniques, feed forward back propagation neural network is applied for annealing process modelling. A good correlation between results of this method and results of thermal models has been obtained
Investigation of Io's Auroral Hiss Emissions Due To Its Motion in Jupiter's Magnetosphere
The left-hand side of the auroral hiss emission observed by Galileo has a
frequency time shaped very similar to the funnel shape observed in the earth's
auroral region. This close similarity indicates that we can use the
whistler-mode propagation near resonance cone to locate the emission source. In
this paper the general characteristic of the whistler mode are discussed. Then
the position of the emission source has been investigated using a geometry
method that takes into account the Galileo's trajectory. Initially it is
assumed the source is a point. Then the possibility of sheet source aligned
along the magnetic field lines which are tangent to the surface of Io is
investigated. Both of two types of sources show that the whistler mode
radiation originates very close to the surface of the Io
Observation of SLE on the Critical Statistical Models
Schramm-Loewner Evolution (SLE) is a stochastic process that helps classify
critical statistical models using one real parameter . Numerical study
of SLE often involves curves that start and end on the real axis. To reduce
numerical errors in studying the critical curves which start from the real axis
and end on it, we have used hydrodynamically normalized SLE()
which is a stochastic differential equation that is hypothesized to govern such
curves. In this paper we directly verify this hypothesis and numerically apply
this formalism to the domain wall curves of the Abelian Sandpile Model (ASM)
() and critical percolation (). We observe that this method
is more reliable for analyzing interface loops.Comment: 6 Pages, 8 Figure
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