2 P2P or Not 2 P2P?
In the hope of stimulating discussion, we present a heuristic decision tree that designers can use to judge the likely
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Anomalous layering at the liquid Sn surface
X-ray reflectivity measurements on the free surface of liquid Sn are presented. They exhibit the high-angle peak, indicative of surface-induced
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A Simple Test for Non-Gaussianity in CMBR Measurements
We propose a set of statistics $S_q$ for detecting non-gaussianity in CMBR anisotropy data sets. These statistics are both simple
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Astrophysical and Biological Constraints on Radiopanspermia
We have carried out a series of calculations involving bacteria and viruses embedded in dust grains, which are ejected from
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Building Space-Time Meshes over Arbitrary Spatial Domains
We present an algorithm to construct meshes suitable for space-time discontinuous Galerkin finite-element methods. Our method generalizes and improves the
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Crystal structures and magnetic order of La{0.5+delta}A{0.5-delta}Mn{0.5+epsilon}Ru{0.5-epsilon}O{3} (A= Ca, Sr, Ba): Possible orbital glass ferromagnetic state
The crystallographic and magnetic properties of La{0.5+delta}A{0.5-delta}Mn{0.5+epsilon}Ru{0.5-epsilon}O{3} (A= Ca, Sr, Ba) were investigated by means of neutron powder diffraction. All
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D0 mixing at CLEO II
The CLEO collaboration reported the observation of the ``wrong sign'' decay D0 -> K+ pi- in 1993. Recent upgrades to
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Dense point sets have sparse Delaunay triangulations
The spread of a finite set of points is the ratio between the longest and shortest pairwise distances. We prove
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DISCO: An object-oriented system for music composition and sound design
This paper describes an object-oriented approach to music composition and sound design. The approach unifies the processes of music making
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Emerging Challenges in Computational Topology
Here we present the results of the NSF-funded Workshop on Computational Topology, which met on June 11 and 12 in
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Event Structure in the Production of High Mass Photon Pairs
The event structure associated with the production of massive photon pairs is studied to ${\cal O}(α^2/alpha_s)$. The cross sections for
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Finite-resolution hidden surface removal
We propose a hybrid image-space/object-space solution to the classical hidden surface removal problem: Given n disjoint triangles in Real^3 and
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Flipturning polygons
A flipturn is an operation that transforms a nonconvex simple polygon into another simple polygon, by rotating a concavity 180
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Forecast for Epoch-of-Reionization as viewable by the PrimevAl Structure Telescope (PAST)
We present sensitivity forecasts for the PAST 21cm reionization observations and compare these with the measured sensitivity of a prototype
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Nice point sets can have nasty Delaunay triangulations
We consider the complexity of Delaunay triangulations of sets of points in R^3 under certain practical geometric constraints. The spread
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Non-Parametric Inference in Astrophysics
We discuss non-parametric density estimation and regression for astrophysics problems. In particular, we show how to compute non-parametric confidence intervals
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Obscured AGN in Multiwavelength Surveys
Using a simple unification model for AGN, with a fixed ratio of obscured to unobscured AGN of 3:1, we explain
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Observations of T-Tauri Stars using HST-GHRS: II. Optical and Near UV lines
We have analyzed GHRS data of eight Classical T Tauri stars (CTTSs) and one Weak T Tauri star (WTTS). The
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On the Evolutionary Status of Extremely Hot Helium Stars - are O(He) Stars Successors of RCrB Stars?
95% of all stars end their lives as white dwarfs. About 20% of the hot post-AGB stars are hydrogen deficient.
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Optimally cutting a surface into a disk
We consider the problem of cutting a set of edges on a polyhedral manifold surface, possibly with boundary, to obtain
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Palomar-QUEST: A case study in designing sky surveys in the VO era
The advent of wide-area multicolour synoptic sky surveys is leading to data sets unprecedented in size, complexity and data throughput.
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Photometry and Spectroscopy of Coma Dwarf Ellipticals
We have used deep R- and B-band CCD images (with ~1.2 arcsec seeing) of the central ~700 arcmin^2 of the
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Preprocessing Chains for Fast Dihedral Rotations Is Hard or Even Impossible
We examine a computational geometric problem concerning the structure of polymers. We model a polymer as a polygonal chain in
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Proceedings to the Workshops ''What comes beyond the Standard model'' 2000,2001, VOLUME 1: Festschrift dedicated to the 60th birthday of Holger Bech Nielsen
The present volume is the collection of contributions by friends of Holger Bech Nielsen for his 60th birthday. Contents: 1.Unified
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