72,544 research outputs found
Retail Innovation - The never-ending road to success? A critical analysis of pitfalls and opportunities
This paper outlines the current and continuous changes occurring in the retail and social environment that necessitate the constant evolution of retail formats. Over recent years experiential retail formats have appeared in recognition of the increasing need to ‘entertain’ shoppers and satisfy their ‘leisure’ needs. A number of ‘best practice’ examples of such retail innovation have been presented.
While such experiential innovations appear to be the ‘holy grail’ of modern retailing, they often require considerable investments of both capital and management time. This paper has used an autoethnographic approach to reflect upon the constraints and costs involved in the design, construction and operation of such a retail enterprise to provide a unique and holistic assessment of the benefits and challenges experiential innovation holds in developing new retail formats and initiatives. The findings from this research highlight a number of previously unreported pitfalls that are likely to be encountered, financially, operationally and symbolically. It is recommended that retailers continue to explore experiential innovations, but that they proceed with caution
Fundamental Flaws in Feller's Classical Derivation of Benford's Law
Feller's classic text 'An Introduction to Probability Theory and its
Applications' contains a derivation of the well known significant-digit law
called Benford's law. More specifically, Feller gives a sufficient condition
("large spread") for a random variable to be approximately Benford
distributed, that is, for to be approximately uniformly
distributed modulo one. This note shows that the large-spread derivation, which
continues to be widely cited and used, contains serious basic errors. Concrete
examples and a new inequality clearly demonstrate that large spread (or large
spread on a logarithmic scale) does not imply that a random variable is
approximately Benford distributed, for any reasonable definition of "spread" or
measure of dispersionComment: 7 page
General Issues in the Evolution of Fermion Masses and Mixings
General issues in the renormalization group evolution of fermion masses and
mixings is discussed. An effective fixed point in the top quark Yukawa coupling
can strongly constrain its value at the electroweak scale. Predictions
following from Yukawa coupling unification are affected by threshold
corrections at the grand unified scale. The Landau pole translates into an
upper limit on the strong gauge coupling . Given the hierarchy
in the fermion sector, the evolution of the Cabbibo-Kobayashi-Maskawa matrix
can be expressed in terms of a single scaling parameter . Using this scaling
factor and analogous scaling factors for the quark and lepton masses, we
outline a systematic strategy that readily yields electroweak predictions for
any GUT scale texture.}Comment: (Talk given at the SUSY93 Conference MSB), 9 pages + 3 PS figures not
included (available on request), MAD/PH/75
Erratum: Next-to-leading order supersymmetric QCD predictions for associated production of gauginos and gluinos [Phys. Rev. D 62, 095014 (2000)]
Errors in the published version of the paper are corrected, and new figures
are provided.Comment: 3 pages, latex, 4 figure
A computer program incorporating fatigue and fracture criteria in the preliminary design of transport aircraft: An evaluation
The APAS program a multistation structural synthesis procedure developed to evaluate material, geometry, and configuration with various design criteria usually considered for the primary structure of transport aircraft is described and evaluated. Recommendations to improve accuracy and extend the capabilities of the APAS program are given. Flow diagrams are included
Spitzer Observations of Gamma-Ray Burst Host Galaxies: A Unique Window into High Redshift Chemical Evolution and Star-formation
We present deep Spitzer 3.6 micron observations of three z~5 GRB host
galaxies. Our observations reveal that z~5 GRB hosts are a factor of 3 less
luminous than the median rest-frame V-band luminosity of spectroscopically
confirmed z~5 galaxies in the GOODS fields and the UDF. The strong connection
between GRBs and massive star formation implies that not all star-forming
galaxies at these redshifts are currently being accounted for in deep surveys
and GRBs provide a unique way to measure the contribution to the star-formation
rate density from galaxies at the faint end of the galaxy luminosity function.
By correlating the co-moving star-formation rate density with co-moving GRB
rates at lower redshifts, we estimate a lower limit to the star-formation rate
density of 0.12+/-0.09 and 0.09+/-0.05 M_sun/yr/Mpc^3 at z~4.5 and z~6,
respectively. Finally, we provide evidence that the average metallicity of
star-forming galaxies evolves as (stellar mass density)^(0.69+/-0.17) between
and , probably indicative of the loss of a significant
fraction of metals to the intergalactic medium, particularly in low-mass
galaxies.Comment: ApJ, in pres
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