Orchids of Peru

Orchids

aperture in the tissues surrounding the meristems. 'This simple experiment revealed that there were four distinct regions of the embryo with different plasmodesmata apertures. The shoot meristem had the highest aperture enabling movement of single-to-triple sized GFP; the hypocotyl (embryonic stem) allowed single, double and some triple-sized GFP movement; the root allowed single and double-siz...

A Smell of Orchids

ORCHIDS is an intrusion detection tool based on techniques for fast, on-line model-checking. ORCHIDS detects complex, correlated strands of events with very low overhead in practice, although its detection algorithm has worstcase exponential time complexity. The purpose of this paper is twofold. First, we explain the salient features of the basic model-checking algorithm in an intuitive way, as...

Beyond orchids and dandelions:

Linnaean sources and concepts of orchids.

BACKGROUND Linnaeus developed a robust system for naming plants and a useful, if mechanical, system for classifying them. His binomial nomenclature proved the catalyst for the rapid development of our knowledge of orchids, with his work on the family dating back to 1737 in the first edition of his Genera Plantarum. His first work devoted to orchids, indeed the first monograph of the family, was...

The Orchids Intrusion Detection Tool

ORCHIDS is an intrusion detection tool based on techniques for fast, on-line model-checking. Temporal formulae are taken from a temporal logic tailored to the description of intrusion signatures. They are checked against merged network and system event flows, which together form a linear Kripke structure.