This paper extends a new line of research on urban squatting that focuses on the role of the squatter organizer. The model replaces the benevolent organizer from previous studies with a collection of competing, rent-seeking squatter organizers, a structure that may offer a realistic picture of many cities in less-developed countries. In addition to delineating the structure of such a competitiv...

This is a “cheat sheet”, which means that it consists of information packaged in a concise and efficient way so that it can easily be used as a quick reference. The topic is ranks of elliptic curves, mostly over Q. This is a slightly revised version of the handout I wrote as a supplement to my survey talk “Distributions of Ranks of Elliptic Curves” at MSRI’s Connections for Women: Arithmetic St...

Introduction The evolution of multicellular organisms made necessary the development of an extracellular matrix to protect cells and to bind them together in a spatial arrangement required for specialized anatomical and physiological functions. Thus the extent of the matrix and how it is organized in different parts of the body depend on the specialized functions of cells. The matrix in its tur...

Hundreds of chemical and physical signals constantly bombard the surface of all cells. Some of these do not enter the cell but, instead, bind to receptors at the cell surface and initiate a flow of information that moves to the cell interior. The receptors for many hormones (such as catecholamines, gonadotropins, parathyroid hormone, and glucagon), odorants, and light span the membrane seven ti...

Software technology and software systems greatly impact technological products, economic activities, defense, scientific research, and social life. The complexity of software continues to grow. Failures of software projects and software systems may incur high financial costs and even human life. There is no doubt that various software development processes and the complicated behavior of softwa...

As many large-scale enterprise information systems start to utilize P2P networks, parallel, grid, cloud and Internet computing, they have become a major source of business information. Techniques and methodologies to extract quality information in distributed systems are of paramount importance for many applications and users in the business community. Data mining and knowledge discovery play k...

The Chemistry-Information-Computers (CIC) division [1] of the German Chemical Society (GDCh) invited the chemoinformatics and modeling community from the 7 to the 9 November 2010 to Goslar, Germany, to participate in the 6th German Conference on Chemoinformatics (GCC 2010). The international symposium addressed a broad range of modern research topics in the realm of computers and chemistry. The...

The First International Workshop on Network Technologies for Security, Administration and Protection (NETSAP 2010) focuses on practical systems to fight against cyber attacks. Mechanisms, algorithms and strategies that can be adopted in the real field will be discussed. After pointing out problems of existing methods, efficient solutions will be presented. We also have an invited talk concernin...

Context aware ubiquitous learning is a computer supported learning paradigm for identifying learners’ surrounding contextual environment and social presence to provide integrated, interoperable, pervasive, and seamless learning experiences. The objective of context aware ubiquitous learning is to move Web and mobile learning a step further from learning at anytime anywhere to be at the right ti...

Sentences form coherent relations in a discourse without discourse connectives more frequently than with connectives. Senses of these implicit discourse relations that hold between a sentence pair, however, are challenging to infer. Here, we employ Brown cluster pairs to represent discourse relation and incorporate coreference patterns to identify senses of implicit discourse relations in natur...