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knowledge presents unique challenges, including managing statistical signi cance and inductive bias. These two challenges have important implications for valid and e cient knowledge management. 1 Algorithms for inducing knowledge are becoming increasingly important in business, government, and science

unique challenges in the design of unattended autonomous sensor networks. These challenges lead us to hypothesize that sensor network coordination applications may need to be structured differently from traditional net-work applications. In particular, we believe that localized algorithms (in which

This article is an analysis of the unique needs of returning service members at the college or university level that impact the teaching decisions made by instructors. The article also discusses the challenges that service members are individually addressing while acclimating themselves

Scott. D. (1980). The popular lecture and the creationof apublic in

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-sensitive operations are still the main applications of ad hoc networks, although there is a trend to adopt ad hoc networks for commercial uses due to their unique properties. One main challenge in design of these networks is their vulnerability to security attacks. In this paper, we study the threats an ad hoc

that for large n, and for all Φ’s except a negligible fraction, the following property holds: For every y having a representation y = Φα0 by a coefficient vector α0 ∈ R m with fewer than ρ · n nonzeros, the solution α1 of the ℓ 1 minimization problem min �x�1 subject to Φα = y is unique and equal to α0

, we review the "Grid problem," which we define as flexible, secure, coordinated resource sharing among dynamic collections of individuals, institutions, and resources-what we refer to as virtual organizations. In such settings, we encounter unique authentication, authorization, resource

Mammalian gestation creates an immunological paradox wherein the body must balance tolerance of an allogeneic fetus with protection against invading pathogens. Pregnancy has long been considered a state of immune suppression that, while necessary for reproduction, increases a woman’s susceptibility to infection [1]. However, mothers bear the responsibility of the most important biological task: to carry and to nourish their offspring. It is therefore fitting that a more nuanced picture is emerging of a tightly regulated maternal immune system that balances awareness of the fetus with mechanisms to protect against pathogens and to sustain a healthy pregnancy [2]. Recent evidence indicates that innate placental defenses comprise one such mechanism. Subver-sion of these defenses by pathogens can lead to pregnancy complications such as preterm labor or vertical transmission with fetal morbidity or mortality [3]. The Danger Model posits that