A Review paper on the Memory Built-In Self-Repair with Redundancy Logic

The Present review paper expresses the word oriented memory test methodology for Built-In Self-Repair (BISR). To replace the defect words few logics are introduced. These logics are memory BIST logic and Wrapper logic. Whenever a test is carries on, the defected words are pointed out by its address only and these addresses are called failing address. The failing addresses are stored in the fuse box. Using fuse box it avoids the classic redundancy concept, where the RAMS has spare rows and columns. After the detection of faulty address, they are stored in redundancy logic. During test and redundancy configuration, the fuse box is connected to a scan registernbsp by this processnbsp inputnbsp and output data can be evaluated

Active Integrity Constraints and Revision Programming

We study active integrity constraints and revision programming, two formalisms designed to describe integrity constraints on databases and to specify policies on preferred ways to enforce them. Unlike other more commonly accepted approaches, these two formalisms attempt to provide a declarative solution to the problem. However, the original semantics of founded repairs for active integrity constraints and justified revisions for revision programs differ. Our main goal is to establish a comprehensive framework of semantics for active integrity constraints, to find a parallel framework for revision programs, and to relate the two. By doing so, we demonstrate that the two formalisms proposed independently of each other and based on different intuitions when viewed within a broader semantic framework turn out to be notational variants of each other. That lends support to the adequacy of the semantics we develop for each of the formalisms as the foundation for a declarative approach to the problem of database update and repair. In the paper we also study computational properties of the semantics we consider and establish results concerned with the concept of the minimality of change and the invariance under the shifting transformation.Comment: 48 pages, 3 figure

Community Repair Project: Strategic Social Skill Mobilization For Sustainable Fashion

As an effort towards sustainability, fashion needs to embrace repair as a designed feature for everyday clothes. Normally we think of repair as merely fixing a broken object, making it functional again. But repair can be so much more. It can be an update of function, an improvement of style, a sign of compassion, or even rebuilding of community. If sustainable fashion takes repair seriously, designers might be able to reengage communities in strategic collaborations for repair; using the broken object to mend the social fabric scattered by the status anxiety of fashion

Towards a Model of Life and Cognition

What should be the ontology of the world such that life and cognition are possible? In this essay, I undertake to outline an alternative ontological foundation which makes biological and cognitive phenomena possible. The foundation is built by defining a model, which is presented in the form of a description of a hypothetical but a logically possible world with a defined ontological base. Biology rests today on quite a few not so well connected foundations: molecular biology based on the genetic dogma; evolutionary biology based on neo-Darwinian model; ecology based on systems view; developmental biology by morphogenetic models; connectionist models for neurophysiology and cognitive biology; pervasive teleonomic explanations for the goal-directed behavior across the discipline; etc. Can there be an underlying connecting theme or a model which could make these seemingly disparate domains interconnected? I shall atempt to answer this question. By following the semantic view of scientific theories, I tend to believe that the models employed by the present physical sciences are not rich enough to capture biological (and some of the non-biological) systems. A richer theory that could capture biological reality could also capture physical and chemical phenomena as limiting cases, but not vice versa