Human institutions—ways of organizing activities—affect the resilience of the environ-ment. Locally evolved institutional arrangements governed by stable communities and buffered from outside forces have sustained resources successfully for centuries, al-though they often fail when rapid change

problems facing the lexical semantics community, and suggest ways of best approaching these issues. Then, I will provide a method for the decomposition of lexical categories and outline a theory of lexical semantics embodying a notion of cocompositionality and type coercion, as well as several levels

This paper is essentially tutorial in nature. We show how any discrete wavelet transform or two band subband filtering with finite filters can be decomposed into a finite sequence of simple filtering steps, which we call lifting steps but that are also known as ladder structures

a notion of hyperlinked communities on the www through an analysis of the link topology. Byinvoking a simple, mathematically clean method for de ning and exposing the structure of these communities, we are able to derive anumber of themes: The communities can be viewed as containing a core

We are interested in finding natural communities in largescale linked networks. Our ultimate goal is to track changes over time in such communities. For such temporal tracking, we require a clustering algorithm that is relatively stable under small perturbations of the input data. We have developed

. This task of estimating camera motion from measurements of a continuously expanding set of selfmapped visual features is one of a class of problems known as Simultaneous Localisation and Mapping (SLAM) in the robotics community, and we argue that such real-time mapping research, despite rarely being camera

The education and research communities are abuzz with new (or at least re-discovered) ideas about the nature of cognition and learning. Terms like "situated

Understanding the mechanisms responsible for the stability and persistence of natural communities is one of the greatest challenges in ecology [1]. Robert May showed that con-trary to intuition, complex randomly built communities are less likely to be stable than simpler ones [2, 3]. For four

There should be no need to try to convince anyone of the ugliness and poor planning of our cities. Those with senses and sensibility will be aware of their shortcomings, and disquieted, too; because with all our insight and technical skill we continue to add to their tastelessness and ineflicieney through motives that reflect little credit on the developers- public or private. My aim is to outline the part ecologists should be playing in the planning of urban areas and their surrounding countryside; especially now. when about 40 % of mankind lives in cities, with all the attendant social, economic, political and environmental problems of such places. I will take

Abstract: Problem statement: The arthropods have a very important role in the arid zones due to their interactions with many organism and because they constituted an important element in the structure of the plant community. Nevertheless their importance there are few knowledge about the community