Recently, a research team from Hokkaido University made significant progress in the complexity study of the Hitting Geodesic Intervals (HGI) problem. The HGI problem aims to find a small set of ...

Not getting enough sleep has been linked to heart disease, high blood pressure, diabetes and stroke. It has also been shown ...

Tom Yeung here with your Sunday Digest. There’s a saying on Wall Street that the best time to buy is when there’s blood in ...

This important work sets out to identify the neural substrates of associative fear responses in adult zebrafish. Through a compelling and innovative paradigm and analysis, the authors suggest brain ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

V I (Vertical Interval) graph, hand written in black ink on lambskin, for Mk VIIIz .303 ammunition. The graph has a title panel which reads 'V.I. Graph. 0.8.85 John C Cockram', and is graduated up the ...

The defensive interval ratio (DIR) is a financial metric that can help investors assess a company's ability to meet its short-term operating expenses using its liquid assets. Also known as the basic ...

Abstract: The aim of this paper is to introduce the notion of interval-valued fuzzy graphs. We also show how to associate an interval-valued fuzzy sub(semi)group with ...

A holy grail of theoretical computer science, with numerous fundamental implications to more applied areas of computing such as operations research and artificial intelligence, is the question of ...

A total dominating set of a graph G is a subset S of nodes such that each node of G is adjacent to some node of S. We present an O(n 2) time algorithm for finding a minimum cardinality total ...