Introducing InterSECT

Colour Vision: Parallel Pathways Intersect in Drosophila

In the last one hundred years, colour vision has been demonstrated in bees and many other insects. But the underlying neural wiring remained elusive. A new study on Drosophila melanogaster combining behavioural and genetic tools yields surprising insights.

Practical Aspects of the Line Intersect Method

This report provides information and comment on a number of practical aspects of the line intersect method, including specific equations for volume and weight for various sets of units; problems of orientation bias and sample layout; diameter-class limits and centres; use of the method to determine total length of pieces or networks and piece-length distribution; sample size, length of line, an...

The Similarity-Aware Relational Intersect Database Operator

Identifying similarities in large datasets is an essential operation in many applications such as bioinformatics, pattern recognition, and data integration. To make the underlying database system similarity-aware, the core relational operators have to be extended. Several similarity-aware relational operators have been proposed that introduce similarity processing at the database engine level, ...

Where Information Society and Community Voice Intersect

Noncommutative Polynomials Nonnegative on a Variety Intersect a Convex Set

By a result of Helton and McCullough [HM12], open bounded convex free semialgebraic sets are exactly open (matricial) solution sets D◦ L of a linear matrix inequality (LMI) L(X) 0. This paper gives a precise algebraic certificate for a polynomial being nonnegative on a convex semialgebraic set intersect a variety, a so-called “Perfect” Positivstellensatz. For example, given a generic convex fre...