Remarkable Plants1: II.—Some Curious Orchids.

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...

Activity in Sun and Shade Plants1

The consequences of light adaptation and acclimation of photosynthesis on photosynthetic nitrogen use efficiency (NUE), particularly as it relates to the efficiency of ribulose-1,5-bisphosphate carboxylase (Rubisco) use in photosynthetic CO2 assimilation, was studied in the sun species Glycine max and the shade species Alocasia macrorrhiza. Both G. max and A. macrorrhiza were found to possess t...

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...

Curious curium.

Although perhaps not as renowned as its actinide siblings plutonium and uranium, the fourth transuranic element — named in honour of Pierre and Marie Curie — has a story that is intertwined with that of the twentieth century. The first isotope of element 96, 242Cm, was prepared in 1944 by Seaborg, James, and Ghiorso through bombardment of 239Pu with helium nuclei. This finding was quickly follo...

Beyond orchids and dandelions: