@article {2345,
	title = {Phylogenetic ecology of leaf surface traits in the milkweeds (Asclepias spp.): chemistry, ecophysiology, and insect behavior},
	journal = {New Phytologist},
	volume = {183},
	number = {3},
	year = {2009},
	note = {ISI Document Delivery No.: 472AKTimes Cited: 4Cited Reference Count: 89Agrawal, Anurag A. Fishbein, Mark Jetter, Reinhard Salminen, Juha-Pekka Goldstein, Jessica B. Freitag, Amy E. Sparks, Jed P.},
	pages = {848-867},
	type = {Article},
	abstract = {P>The leaf surface is the contact point between plants and the environment and plays a crucial role in mediating biotic and abiotic interactions. Here, we took a phylogenetic approach to investigate the function, trade-offs, and evolution of leaf surface traits in the milkweeds (Asclepias). Across 47 species, we found trichome densities of up to 3000 trichomes cm(-2) and epicuticular wax crystals (glaucousness) on 10 species. Glaucous species had a characteristic wax composition dominated by very-long-chain aldehydes. The ancestor of the milkweeds was probably a glaucous species, from which there have been several independent origins of glabrous and pubescent types. Trichomes and wax crystals showed negatively correlated evolution, with both surface types showing an affinity for arid habitats. Pubescent and glaucous milkweeds had a higher maximum photosynthetic rate and lower stomatal density than glabrous species. Pubescent and glaucous leaf surfaces impeded settling behavior of monarch caterpillars and aphids compared with glabrous species, although surface types did not show consistent differentiation in secondary chemistry. We hypothesize that pubescence and glaucousness have evolved as alternative mechanisms with similar functions. The glaucous type, however, appears to be ancestral, lost repeatedly, and never regained; we propose that trichomes are a more evolutionarily titratable strategy. New Phytologist (2009) 183: 848-867doi: 10.1111/j.1469-8137.2009.02897.x.},
	keywords = {adaptation to arid environments, ALDEHYDES, CARBON ISOTOPE DISCRIMINATION, cardenolides, CHARACTERS, CHEMICAL-COMPOSITION, cuticular, cuticular waxes, DISCRETE, EPICUTICULAR WAX CRYSTALS, EVOLUTION, IN-VITRO RECONSTITUTION, LEAVES, monarch butterfly caterpillar (Danaus plexippus), plant defense, STRATEGIES, syndromes, trichomes, UV PHOTOPROTECTION, water use efficiency, waxes},
	isbn = {0028-646X},
	url = {<Go to ISI>://000268100800031},
	author = {Agrawal, A. A. and Fishbein, M. and Jetter, R. and Salminen, J. P. and Goldstein, J. B. and Freitag, A. E. and Sparks, J. P.}
}
@article {2165,
	title = {An efficient mapped pseudospectral method for weakly bound states: vibrational states of He-2, Ne-2, Ar-2 and Cs-2},
	journal = {Journal of Physics B-Atomic Molecular and Optical Physics},
	volume = {41},
	number = {18},
	year = {2008},
	note = {ISI Document Delivery No.: 347PITimes Cited: 2Cited Reference Count: 54Lo, Joseph Q. W. Shizgal, Bernie D.},
	month = {Sep},
	pages = {13},
	type = {Article},
	abstract = {This paper reports the application of pseudospectral methods to the calculation of the bound states of He-2, Ne-2, Ar-2 and Cs-2. The calculation of the uppermost loosely bound states, only one for He-2, presents a challenge for most numerical methods. We employ the quadrature discretization method which is a collocation based on quadrature points defined with weight functions that approximate the ground states. A mapping procedure is proposed that greatly improves the convergence of the uppermost states that are very loosely bound and characterized by very diffuse eigenfunctions. Comparisons with the results with other methods and experiment are also carried out wherever possible.},
	keywords = {BASIS FUNCTIONS, DIATOMIC-MOLECULES, DIMERS, DISCRETE, HELIUM DIMER, LAGRANGE-MESH METHOD, LONG-RANGE MOLECULES, NONCLASSICAL, QUADRATURE DISCRETIZATION METHOD, QUANTUM-MECHANICAL PROBLEMS, RARE-GAS, ULTRAVIOLET-LASER SPECTROSCOPY, VARIABLE REPRESENTATION},
	isbn = {0953-4075},
	url = {<Go to ISI>://000259153100008},
	author = {Lo, J. Q. W. and Shizgal, B. D.}
}
