475 research outputs found
Pareto law and Pareto index in the income distribution of Japanese companies
In order to study the phenomenon in detail that income distribution follows
Pareto law, we analyze the database of high income companies in Japan. We find
a quantitative relation between the average capital of the companies and the
Pareto index. The larger the average capital becomes, the smaller the Pareto
index becomes. From this relation, we can possibly explain that the Pareto
index of company income distribution hardly changes, while the Pareto index of
personal income distribution changes sharply, from a viewpoint of capital (or
means). We also find a quantitative relation between the lower bound of capital
and the typical scale at which Pareto law breaks. The larger the lower bound of
capital becomes, the larger the typical scale becomes. From this result, the
reason there is a (no) typical scale at which Pareto law breaks in the income
distribution can be understood through (no) constraint, such as the lower bound
of capital or means of companies, in the financial system.Comment: 12 pages, 8 figure
Relations between a typical scale and averages in the breaking of fractal distribution
We study distributions which have both fractal and non-fractal scale regions
by introducing a typical scale into a scale invariant system. As one of models
in which distributions follow power law in the large scale region and deviate
further from the power law in the smaller scale region, we employ 2-dim quantum
gravity modified by the term. As examples of distributions in the real
world which have similar property to this model, we consider those of personal
income in Japan over latest twenty fiscal years. We find relations between the
typical scale and several kinds of averages in this model, and observe that
these relations are also valid in recent personal income distributions in Japan
with sufficient accuracy. We show the existence of the fiscal years so called
bubble term in which the gap has arisen in power law, by observing that the
data are away from one of these relations. We confirm, therefore, that the
distribution of this model has close similarity to those of personal income. In
addition, we can estimate the value of Pareto index and whether a big gap
exists in power law by using only these relations. As a result, we point out
that the typical scale is an useful concept different from average value and
that the distribution function derived in this model is an effective tool to
investigate these kinds of distributions.Comment: 17 pages, latex, 13 eps figure
Analytic Structure of Three-Mass Triangle Coefficients
``Three-mass triangles'' are a class of integral functions appearing in
one-loop gauge theory amplitudes. We discuss how the complex analytic
properties and singularity structures of these amplitudes can be combined with
generalised unitarity techniques to produce compact expressions for three-mass
triangle coefficients. We present formulae for the N=1 contributions to the
n-point NMHV amplitude.Comment: 22 pages; v3: NMHV n=point expression added. 7 point expression
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Null sets of harmonic measure on NTA domains: Lipschitz approximation revisited
We show the David-Jerison construction of big pieces of Lipschitz graphs
inside a corkscrew domain does not require its surface measure be upper Ahlfors
regular. Thus we can study absolute continuity of harmonic measure and surface
measure on NTA domains of locally finite perimeter using Lipschitz
approximations. A partial analogue of the F. and M. Riesz Theorem for simply
connected planar domains is obtained for NTA domains in space. As a consequence
every Wolff snowflake has infinite surface measure.Comment: 22 pages, 6 figure
Effects of film criticism on audience interest, attendance, and evaluation
The influence of arts critics has been debated for centuries, but there is little scientific evidence on the subject. This research brings a variety of data to the issue via a laboratory experiment with both attitudinal and behavioral measures.
In April 1985, 318 Middle Tennessee State University students were randomly assigned to four treatment conditions, in which they read either a positive, mixed, or negative review, or a non-evaluative description (non-review) of the motion picture Butley. Before exposure to treatments, subjects reported interest in seeing the movie; after exposure, they rated the reviews for appeal, credibility, and informativeness and again reported interest in seeing the movie. These self-report measures were supplemented with behavioral measures. Subjects were provided with opportunities to take a free pass for a subsequent screening of Butley. to attend the screening, and to bring a guest. Subjects and guests who attended screenings also evaluated the film.
The results showed review condition significantly affects audience interest, with interest increasing most in the positive condition, least in the negative condition, and in between in mixed and non-review conditions. Factor analysis of subjects\u27 evaluations of reviews revealed two underlying dimensions: appeal and credibility-informativeness. Review condition was significantly related to appeal, with positive and non-reviews more appealing than mixed and negative reviews. However, condition was not related to credibility-informativeness.
Review condition did not significantly affect the taking of a free pass; however, trends were in the expected direction, with subjects exposed to the positive review most likely to take a pass, and those exposed to the negative review least likely.
Because only 12 subjects attended screenings, inferential statistics were not applied to attendance or post-viewing film evaluation. However, 6 of the 12 who attended were from the positive review condition and only 1 from the negative
Recursive Calculation of One-Loop QCD Integral Coefficients
We present a new procedure using on-shell recursion to determine coefficients
of integral functions appearing in one-loop scattering amplitudes of gauge
theories, including QCD. With this procedure, coefficients of integrals,
including bubbles and triangles, can be determined without resorting to
integration. We give criteria for avoiding spurious singularities and boundary
terms that would invalidate the recursion. As an example where the criteria are
satisfied, we obtain all cut-constructible contributions to the one-loop
n-gluon scattering amplitude, A_n^{oneloop}(...--+++...), with split-helicity
from an N=1 chiral multiplet and from a complex scalar. Using the
supersymmetric decomposition, these are ingredients in the construction of QCD
amplitudes with the same helicities. This method requires prior knowledge of
amplitudes with sufficiently large numbers of legs as input. In many cases,
these are already known in compact forms from the unitarity method.Comment: 36 pages; v2 clarification added and typos fixed, v3 typos fixe
All Non-Maximally-Helicity-Violating One-Loop Seven-Gluon Amplitudes in N=4 Super-Yang-Mills Theory
We compute the non-MHV one-loop seven-gluon amplitudes in N=4
super-Yang-Mills theory, which contain three negative-helicity gluons and four
positive-helicity gluons. There are four independent color-ordered amplitudes,
(- - - + + + +), (- - + - + + +), (- - + + -+ +) and (- + - + - + +). The MHV
amplitudes containing two negative-helicity and five positive-helicity gluons
were computed previously, so all independent one-loop seven-gluon helicity
amplitudes are now known for this theory. We present partial information about
an infinite sequence of next-to-MHV one-loop helicity amplitudes, with three
negative-helicity and n-3 positive-helicity gluons, and the color ordering (- -
- + + ... + +); we give a new coefficient of one class of integral functions
entering this amplitude. We discuss the twistor-space properties of the
box-integral-function coefficients in the amplitudes, which are quite simple
and suggestive.Comment: 54 pages, v3 minor correction
MHV-Vertices for Gravity Amplitudes
We obtain a CSW-style formalism for calculating graviton scattering
amplitudes and prove its validity through the use of a special type of
BCFW-like parameter shift. The procedure is illustrated with explicit examples.Comment: 21 pages, minor typos corrected, proof added in section
Hauntings – A nodalist study
Since Deleuze and Guattari first described the concept of the rhizome as a model of cultural transmission in A Thousand Plateaus (1980), a new way of processing information in the Arts and Social Sciences has emerged – ‘Nodalism’. Philip Gochenour has convincingly argued that units of culture can now be thought of as ‘nodes’ existing in a nonhierarchical, web-like network. Information transfer between nodes in the network is horizontal, omni-directional and not necessarily teleological, a way of viewing the world which has been paralleled and actualized in the last twenty years by the emergence, growth and ubiquity of the internet and the World Wide Web.
The author – a developing audiovisual artist – here offers four videomusic pieces and one virtual sound-synthesis tool. At first glance, the pieces may appear to have little in common. However, the commentary will attempt to show that they are subtly linked together, immersed in a cocoon of rhizomatic, pluralistic, thread-like connections.
The strongest ‘thread’ holding them together appears to be the trope of being ‘haunted’ in some way – either by influence, genre, or overarching concept. However, this thesis will attempt to show how a detailed consideration of each piece results in a highly complex final picture in which the pieces can be thought of as individual cultural nodes suspended in a dense rhizomatic mass of lateral cultural threads. For the sake of completion, however, the project has received the name Hauntings in reference to one of the strongest shared tropes running throughout all five works
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