26,566 research outputs found
Triple Play Time
Abstract: Digital convergence thrusts telephony, television and the internet into the socalled 'triple play' offerings, creating new forms of rivalry between cable operators and telephone companies. Markets participants feel compelled to enter new industries to survive, even though their core competencies are limited to their primary market. The outcome of triple play competition is likely to depend on the speed of the development of new technologies and the adaptation of the regulatory environment. In the short run, telephone companies will enjoy an advantage attributable to switching costs. However, this advantage will erode as younger subscribers switch to telephony on the internet.triple play; bundling; digital convergence; broadband access; television and telephone
That\u27s My Mom
With a dab of flour on her nose and a twinkle in her eyes the not too plump little woman stepped to the front of the stage. The scene was the auditorium of the local synagogue. The occasion was a meeting of the Sisterhood of the congregation. The program was a baking demonstration by Mrs. David Hollander. Mrs. Hollander was to show the ladies the fine art of making Viennese flaky cookies
Patenting Computer Data Structures: The Ghost, the Machine and the Federal Circuit
Courts view data structures, the mechanism by which computers store data in meaningful relationships, differently than do computer scientists. While computer scientists recognize that data structures have aspects that are both physical (how they are stored in memory) and logical (the relationships among the stored information), the Federal Circuit, in its attempts to set clear standards of the scope of patentability of data structures, has not fully appreciated their dualistic nature. This i-brief explains what data structures are, explores how courts have wrestled with setting a limiting principle to determine their patentability, and discusses the resultant impact on claim drafting
The development of structural adhesive systems suitable for use with liquid oxygen Summary report, 1 Mar. - 30 Nov. 1967
Structural adhesives prepared from fluorinated polyurethanes for use with liquid oxyge
Asymptotic efficiency of two nonparametric competitors of Wilcoxon's two sample test
Asymptotic efficiency of two nonparametric competitors of Mann-Whitney-Wilcoxon U tes
Realizing modules over the homology of a DGA
Let A be a DGA over a field and X a module over H_*(A). Fix an
-structure on H_*(A) making it quasi-isomorphic to A. We construct an
equivalence of categories between A_{n+1}-module structures on X and length n
Postnikov systems in the derived category of A-modules based on the bar
resolution of X. This implies that quasi-isomorphism classes of A_n-structures
on X are in bijective correspondence with weak equivalence classes of
rigidifications of the first n terms of the bar resolution of X to a complex of
A-modules. The above equivalences of categories are compatible for different
values of n. This implies that two obstruction theories for realizing X as the
homology of an A-module coincide.Comment: 24 page
A quenched large deviation principle in a continuous scenario
We prove the analogue for continuous space-time of the quenched LDP derived
in Birkner, Greven and den Hollander (2010) for discrete space-time. In
particular, we consider a random environment given by Brownian increments, cut
into pieces according to an independent continuous-time renewal process. We
look at the empirical process obtained by recording both the length of and the
increments in the successive pieces. For the case where the renewal time
distribution has a Lebesgue density with a polynomial tail, we derive the
quenched LDP for the empirical process, i.e., the LDP conditional on a typical
environment. The rate function is a sum of two specific relative entropies, one
for the pieces and one for the concatenation of the pieces. We also obtain a
quenched LDP when the tail decays faster than algebraic. The proof uses
coarse-graining and truncation arguments, involving various approximations of
specific relative entropies that are not quite standard.
In a companion paper we show how the quenched LDP and the techniques
developed in the present paper can be applied to obtain a variational
characterisation of the free energy and the phase transition line for the
Brownian copolymer near a selective interface
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