The class of logconcave functions in Rn is a common generalization of Gaussians and of indicator functions of convex sets. Motivated by the problem of sampling from a logconcave density function, we study their geometry and introduce a technique for “smoothing” them out. This leads to an efficient sampling algorithm (by a random walk) with no assumptions on the local smoothness of the density f...

This annotated bibliography of research articles on the case method (including problem-based learning) was begun under an NSF CCLI National Dissemination Grant awarded to Clyde F. Herreid, Mary A. Lundeberg, and Nancy A. Schiller. Research studies were identified, analyzed, and annotated by graduate students under the direction of Dr. Lundeberg at Michigan State University. They included Aman Y...

Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read. Please pay particular attention to: tabulated material; equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please e-mail a list of corrections or the PDF with...

Translation errors between word-processor files and typesetting systems can occur so the whole proof needs to be read. Please pay particular attention to: tabulated material; equations; numerical data; figures and graphics; and references. If you have not already indicated the corresponding author(s) please mark their name(s) with an asterisk. Please e-mail a list of corrections or the PDF with...

As current Voice-over-IP (VoIP) systems encourage a direct communication between the callees they are similar in design to peerto-peer (P2P) approaches. Therefore, we introduce a framework to build distributed supplementary services for VoIP. Some of these services like completion of calls on no reply or holding are already commonly established in public switched telephone networks or realized ...

oC in human p lasma. 5448AP accumulates significantly higher levels of surface plasmin activity (n = 3; mean ± SD) compared to 5448AP∆ska and 5448AP∆emm1. Asterisk indicates statistically significant difference from 5448AP, where P < 0.05. DNase Sda1 Provides Selection Pressure for a Genetic and Phenotyp ic Switch Promoting Invasive Group A Streptococcal Infection M.J. W alker, A. Hollands, M.L...

The proposed work is to verify the performance and security of different cryptographic algorithms in a encrypted VPN (Virtual Private Network), created to provide confidentiality in the network VoIP traffic. The performance tests of the algorithms will occur in various network scenarios, simulating some problems like latency, packet loss, out of order packets, among others. The test architectur...

In an effort to study the regulation of tubulin gene transcription during sea urchin embryogenesis we isolated several genomic and cDNA clones encoding for a and j3 polypeptides (1,2). Here we report the sequence of a full length a tubulin cDNA. Comparison of the predicted amino acid sequence of the cDNA clone (a 1 tubulin), shown in Fig. 1, with that of other clones encoding for a different a ...