Here we prove the existence of sheaf cohomology theory in arbitrary o-minimal structures. ∗With partial support from the FCT (Fundação para a Ciência e Tecnologia), program POCTI (Portugal/FEDER-EU) and Fundação Calouste Gulbenkian. †Supported by an EPSRC studentship. ‡Supported by a postdoctoral fellowship from CMAF, Universidade de Lisboa. MSC: 03C64; 55N30.

We consider threshold production of arbitrary number of Higgs particles ρ by fermion-antifermion pair f f̄ . The nullification of amplitudes for the special case mρ = 2mf is explained in terms of hidden symmetry of the reduced effective dynamics. supported by the Lódź University grant No.269. supported by KBN grant No. 5 P03B 06021

The numerical solution to the frequency equation for the transverse vibration of a simple beam with symmetric overhang is found. The numerical results converge to the analytical solutions for the two limiting cases of a beam with no overhang and a beam with no span and agree with the case in which the supports are at the nodal points of a freely vibrating beam. An approximation to the solution ...

In this article, we consider the main challenges that impede us from realizing the great promise of computersupported cooperative work (CSCW). First, we discuss some of the key features that CSCW must provide in order to succeed with users. We follow this with a picture of the current state of the practice among CSCW users, and then we examine some technologies that hold promise for future appl...

This paper approaches heterogeneity and heterogeneous technology as assets, rather than limitations, in the development of computer supported cooperative work. We demonstrate how heterogeneous technologies sustain teachers’ and students’ school work by presenting four different prototypes (the HyConExplorer, the eCell, the iGameFloor and the eBag) that complement one another because they offer ...

Computer Supported Cooperative Work (CSCW) research is the discipline that explores how to utilize computing and networking technologies to facilitate cooperation and collaboration among people. A variety of research has been conducted on CSCW architecture. However, how to ensure CSCW system effectiveness and efficiency on supporting collaboration remains a challenge. In this paper we present a...

This paper introduces Open Planning Process Panels (O-p3). These panels are based on explicit models of the planning process and axe used to coordinate the development and evaluation of multiple courses of action. We describe the generic ideas behind O-P3 technology, a general methodology for building O-P3 interfaces and two applications based on O-P3 technology the Air Campaign Planning Proces...

This paper seeks to analyze a CSCW (Computer Supported Cooperative Work) approach for supporting Communities of Practice; mainly we focus on discussing how awareness plays a central role for supporting knowledge sharing in a knowledge intensive community.

"To what extent can people be taught to engage in Computer Supported Cooperative Work (CSCW)?" is a question which has rarely been discussed at meetings of CSCW researchers. The present study suggests that qualitative research can contribute to the development of a curriculum for preparing nurses to work with patients who live at a distance from themselves. Building on the ethnographic research...