. We describe some unexpected uses of IM that highlight aspects of communication which are not part of current media theorizing. They pertain to communicative processes people use to connect with each other and to manage communication, rather than to information exchange. We call these processes "

Structures of the cytochrome b6 f complex obtained at 3.0-3.1 Å resolution from the thermophilic cyanobacterium, Mastigocladis laminosus, [1] and the green alga, Chlamydomonas reinhardtii [2] whose appearance in evolution is separated by 10 9 years, are almost identical. Two monomers of molecular weight 110,000, containing eight subunits and seven natural prosthetic groups, are separated by a large lipid-containing “quinone exchange cavity. ” A unique heme, heme x, that is 4- or 5-coordinate and necessarily high spin, with no strong field ligand, is electronically wired to a propionate of the intra-membrane heme bn by a water or hydroxyl. This position is filled by the n-side bound quinone, Qn, in the cytochrome bc1 complex of the mitochondrial respiratory chain. Heme x has been found to be a rhombic high spin ferric heme. The structure and position of heme x suggests that it could function in ferredoxin-dependent cyclic electron transport as well as being an intermediate in a quinone cycle mechanism for electron and proton transfer, although its high spin character is an enigma. Small, but significant differences between the cyanobacterial and algal complexes are: (i) on

Some symbolic AI models for example BDI (belief, desire, intention) models are conceived as explicit and operational models of the intentional pursuit and belief dynamics. The main concern of these models is to provide a clear understanding of the functional roles of different kinds of epistemic and motivational states (beliefs, acceptances, expectations, intentions, goals, desires etc...), of the relational properties among them. Mental configurations of appraisal (involving different kinds of motivational and epistemic states) which correspond to particular cognitive emotions such as disappointment, fear, relief, shame etc... have been analyzed by several authors close to the BDI theoretical tradition. The main objective of this work is a formal analysis of Surprise in a BDI-like cognitive architecture. A clarification of the functional role of Surprise in a BDI-like cognitive architecture with respect to resource bounded belief revision is given.

several expected and unexpected aspects of the database. The results from a study on synthetic data sets demonstrate that the partition-based algorithm scales well with respect to both data set size and data set dimensionality.

TCP/IP networking is an increasingly important aspect of computer systems, but a lack of simulation tools limits architects ’ ability to explore new designs for network I/O. We have developed the M5 simulator specif-ically to enable research in this area. In addition to typical architecture

The creative outcome of a design process hinges on whether or not designers are able to find important aspects of a given problem and thereby invent design issues or requirements during the process. How do they do this? What becomes the impetus for the invention of important issues or requirements

these techniques significantly raise the bar for compromising the host system forcing the attack code to take extraordinary steps that may be impractical in the context of a remote code injection attack. There are two main aspects to our approach. The first is to embed semantic information into executables

from a marketing division of a large industrial company; (b) the lectures cover several non-traditional topics, such as "Internet as a source of information" and "legal and ethical aspects of technical writing"; (c) self- and peer-reviewing of student assignments is employed. Our

Nematodes are considered excellent models for understanding fundamental aspects of neuron function. However, nematodes are less frequently used as models for examining the evolution of nervous systems. While the habitats and behaviors of nematodes are diverse, the neuroanatomy of nematodes is often

by interacting unexpectedly on the same cryptic targets. By constructing and mining an Alzheimer’s disease (AD) drug-oriented chemical-protein interactome (CPI) using a matrix of 10 drug molecules known to treat AD towards 401 human protein pockets, we found that such cryptic targets exist. We recovered from CPI