Some formal representa t ion Issues under ly ing the I n t e r a c t i o n between an expert system and I t s knowledge base are d iscussed. I t Is argued tha t a language that can re fe r both to the a p p l i c a t i o n domain and to the s ta te of the knowledge base Is requ i red to spec i fy and to quest ion an incomplete knowledge base. A formal l o g i c a l language w i t h t h i s a b ...

SCIENCE sciencemag.org C R E D IT : J . O . M Ú N E R A E T A L . C E L L S T E M C E L L 2 1 , 5 1 (2 0 17 ) © C E L L P R E S S refractive index of the lens is varied according to the curvature. Cai et al. show that the lenses of squid eyes have an internal structure containing a set of globular proteins that form a gradient of colloidal particles to counter spherical aberration (see the Pers...

The purpose of this chapter is to compare negligence rules and strict liability rules and to examine the allocative effects resulting from the application of different liability regimes. It first discusses unilateral accidents, while the more complicated bilateral cases follow afterwards. Each section starts with a discussion of the rule of no liability before moving on to various forms of negl...

THEORY A vertical rti al strategic tr t i alliance lli is i a voluntary l t ry relationship r l ti s i among buyers rs and sellers s ll rs that t t is is pursued rs e for f r mutual t al gain. ai . To create create such s c an a alliance, lli , the t participants rti i ts must st share s r the t goall off achieving i i g such s a relationship, r l ti s i , they t must st each have to t desire s...

In this paper, we study the game-theoretic and computational repercussions of Henkin’s partially ordered quantifiers [19]. After defining a gametheoretic semantics for these objects, we observe that tuning the parameter of absentmindedness gives rise to quantifier prefixes studied in [28]. In the interest of computation, we characterize the complexity class PNP q in terms of partially ordered q...

Based on Furusawa’s theory [7], we present an integral representation for the L-function L(s, π× τ), where π is a cuspidal automorphic representation on GSp4 related to a holomorphic Siegel modular form, and where τ is an arbitrary cuspidal automorphic representation on GL2. As an application, a special value result for this L-function in the spirit of Deligne’s conjecture is proved.