✦ LIBER ✦

On the Decidability of Semilinearity for Semialgebraic Sets and Its Implications for Spatial Databases

✍ Scribed by Freddy Dumortier; Marc Gyssens; Luc Vandeurzen; Dirk Van Gucht

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 509 KB
Volume: 58
Category: Article
ISSN: 0022-0000
DOI: 10.1006/jcss.1999.1625

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Corrigendum: CORRIGENDUM: Volume 58, Num

Corrigendum: CORRIGENDUM: Volume 58, Number 3 (1999), in Article No. “On the Decidability of Semilinearity for Semialgebraic Sets and Its Implications for Spatial Databases,” by Freddy Dumortier, Marc Gyssens, Luc Vandeurzen, and Dirk Van Gucht, pages 535–571

📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 127 KB

Unfortunately only after the article went to press, the authors discovered a serious error in Section 5, for which they apologize. The error does not affect results in other sections. Moreover, with only minor modifications, the major results of Section 5 still hold, although several of the proofs t

Evolution and the nature of science: On

Evolution and the nature of science: On the historical discord and its implications for education

✍ John L. Rudolph; Jim Stewart 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 70 KB 👁 2 views

Research in the teaching and learning of evolutionary biology has revealed persistent difficulties in student understanding of fundamental Darwinian concepts. These difficulties may be traced, in part, to science instruction that is based on philosophical conceptions of science that are no longer vi

The absence of endogenic methane on Tita

The absence of endogenic methane on Titan and its implications for the origin of atmospheric nitrogen

✍ Christopher R. Glein; Steven J. Desch; Everett L. Shock 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 331 KB

We calculate the D/H ratio of CH 4 from serpentinization on Titan to determine whether Titan's atmospheric CH 4 was originally produced inside the giant satellite. This is done by performing equilibrium isotopic fractionation calculations in the CH 4 -H 2 O-H 2 system, with the assumption that the b

Effects of neonatal stress on markers of

Effects of neonatal stress on markers of synaptic plasticity in the hippocampus: Implications for spatial memory

✍ Bárbara Aisa; Natalia Elizalde; Rosa Tordera; Berta Lasheras; Joaquín Del Río; M 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB 👁 1 views

## Abstract Early stressful adverse situations may increase the vulnerability to cognitive deficits and psychiatric disorders, such as depression. Maternal separation (MS) has been used as an animal model to study changes in neurochemistry and behavior associated with exposure to early‐life stress.

On the isogroups of the semilinear hyper

On the isogroups of the semilinear hyperbolic equation uxt= f(u) and its exact solutions for the case of the liouville equation

✍ O.P. Bhutani; K. Vijayakumar 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 542 KB

Spatial distribution and population comp

Spatial distribution and population composition of the brown mouse lemur (Microcebus rufus) in Ranomafana National Park, Madagascar, and its implications for social organization

✍ Sylvia Atsalis 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 168 KB 👁 2 views

Through a 16-mo mark-recapture trap study, I examined aspects of spatial distribution and population composition in the brown mouse lemur, Microcebus rufus, a 42 g nocturnal strepsirhine. The study took place in the rainforest of Ranomafana National Park in southeastern Madagascar. Sherman live trap