Formal Concept Analysis (FCA) begins from a context, given as a binary relation between some objects and some attributes, and derives a lattice of concepts, where each concept is given as a set of objects and a set of attributes, such that the first set consists of all objects that satisfy all attributes in the second, and vice versa. Many applications, though, provide contexts with quantitativ...

General DNA analysis includes detection of targets, as well as identification and quantification of specific variants. Genomic DNA exists in the form of homoduplexes, with all corresponding base pairs being complementary, A:T and C:G. We call a double-stranded DNA (dsDNA) molecule a heteroduplex when it contains any noncomplementary base pairs. Conformational and thermodynamic changes produced ...

Computer modeling of activities such as concept-learning, conceptual blending, discovery, analogy and creativity has greatly expanded our understanding of possible mechanisms of conceptualization. Unfortunately, it has also meant that theoretical assessment of conceptual possibilities has become problematic. Determining what concepts can be constructed by what mechanisms in what contexts is far...

Content analysis refers to a family of procedures for the systematic, replicable analysis of text. In essence it involves the classification of parts of a text through the application of a structured, systematic coding scheme from which conclusions can be drawn about the message content. By clearly specifying the coding and other procedures content analysis is replicable in the sense that other...

Comparative analysis (CA) of dynamical systems is an important problem in qualitative reasoning. CA techniques predict differences in the behavior of two systems as a consequence of differences in the initial conditions or structural differences. A disadvantage of these techniques is the imprecision of the possible answers due to their qualitative nature. This report presents SQCA, an implement...

In vivo cyclophosphamide (CP)-induced sister chromatid exchanges (SCEs) were evaluated in females from five genetic strains of mice (C57BL/6J, C3H/ S, 129/ReJ, BALB/c and DBA/2) and their FI hybrids. Baseline (noninduced) SCE values differ significantly among strains, 129/ReJ having the lowest and DBA/2 having the highest mean SCE per cell values. In general, the baseline SCE of a given FI is w...

Background Antiarrhythmic drugs are known to have statedependent interactions with cardiac sodium channels, and these have potentially important implications for drug effects on cardiac conduction, particularly in situations of changed resting potential and heart rate. Recent advances in theoretical approaches permit beat-to-beat changes in sodium channel block to be inferred from conduction ch...

Following the economic liberalization in India, the service sector has gained prominence in the economy as it accounts for the largest share of GDP and, also that the share of this sector in GDP has been growing very rapidly. Empirical data reveal two significant trends in the service sector following liberalization in 1991: growth in service sector productivity and growth in services' trade. T...

Alcoholism is a quantitative disorder that is caused by the combined influences of numerous genes (i.e., quantitative trait loci [QTLs]) and environmental factors. To identify QTLs for alcoholism, researchers compare subject groups (e.g., inbred mouse strains) that differ in both their genetic makeup (i.e., genotype) and alcohol-related trait (e.g., sensitivity to certain alcohol effects). Usin...

In this paper, we present an approach to the automatic extraction of conceptual structures from unorganized collections of documents using large scale lexical regularities in text. The technique maps a term to a constellation of other terms that captures the essential meaning of the term in question. The methodology is language independent, it involves an exploration of a document collection in...