Shaping America’s Youth (SAY) took a model of civic engagement, the town hall meeting, applied it to a critical national health issue, and then went a step further by scientifically analyzing the results. Because of my 30-year experience with the civic-engagement field as a practitioner, a foundation program officer, and a director of an academic research center, I was invited by the SAY leader...

Traditional datacenters are designed as a collection of servers, each of which tightly couples the resources required for computing tasks. Recent industry trends suggest a paradigm shift to a disaggregated datacenter (DDC) architecture containing a pool of resources, each built as a standalone resource blade and interconnected using a network fabric. A key enabling (or blocking) factor for disa...

We propose a scheme for the generation of arbitrary coherent superpositions of vortex states in Bose-Einstein condensates (BEC) using the orbital-angular-momentum states of light. We devise a scheme to generate coherent superpositions of two such counterrotating states of light using well-known experimental techniques. We show that a specially designed Raman scheme allows for transfer of the op...

Many real world applications depend on modeling the temporal dynamics of streams of diverse events, many of which are rare. We introduce a novel model class, Conjoint Piecewise-Constant Conditional Intensity Models, and a learning algorithm that together yield a data-driven approach to parameter sharing with the aim of better modeling such event streams. We empirically demonstrate that our appr...

The purpose of this paper is the study of algebraic properties of soft sets in BCC-algebras. In this regards we introduce and study soft ideals and idealistic soft BCC-algebras.

Efficient algorithms for solving the center problems in weighted cactus networks are presented. In particular, we have proposed the following algorithms for the weighted cactus networks of size n: an O(n log n) time algorithm to solve the 1center problem, an O(n log 3n) time algorithm to solve the weighted continuous 2-center problem. We have also provided improved solutions to the general p-ce...

We study a variation of the 1-center problem in which, in addition to a single supply facility, 8 we are allowed to locate a highway. This highway increases the transportation speed between any demand 9 point and the facility. We show that we can find the optimal location of both the facility and the highway 10 in O(n) or O(n log n) time, depending on whether or not the highway’s length is fixe...

Center problems or minimax facility location problems are among the most active research areas in location theory. In this paper, we find the best unique location for a facility in the plane such that the maximum expected weighted distance to all random demand points is minimized. © 2005 Elsevier B.V. All rights reserved.