Results 161 to 170 of about 27,939 (295)
American Journal of Botany, EarlyView.Abstract Premise Floral adaptations to pollinators can drive lineage diversification and promote coexistence of species. We investigated the reproductive biology of Satyrium longicolle, a South African orchid that we hypothesized to belong to a long‐proboscid horsefly pollination guild and examined overlap of pollinators and floral traits among ...
Steven D. Johnson +3 more
wiley +1 more source
The circular chromatic number of hypergraphs
, 2005 A generalization of the circular chromatic number to hypergraphs is devel-oped. Circular colourings of graphs and hypergraphs are first discussed and it is shown that the circular chromatic number of a graph is the same regard-less of whether the ...
Shepherd, Laura Margret Diane
core
Toward Chromoselective Transformations in Biological Systems: Perspectives and Challenges
Angewandte Chemie International Edition, EarlyView.Controlling biological systems with small‐molecule chromophores has evolved into a powerful strategy and is applied from chemical biology to medicine. However, the complexity of in vivo systems cannot be matched by a single wavelength of light. Developing methods to combine and individually control multiple chromophores is crucial.
Nadja A. Simeth
wiley +1 more source
Circular chromatic number of Kneser Graphs
, 2004 This thesis studies the circular chromatic number of Kneser graphs. It was known that if m is greater than 2n^{2}(n-1), then the Kneser graph KG(m,n) has its circular chromatic number equal its chromatic number . In particular, if n = 3, then KG(m,3) has
Hsieh, Chin-chih
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The upper chromatic number of quasi-interval co-hypergraphs
Le Matematiche, 1997 We investigate the structural and colouring properties of clique hyper-graphs of interval graphs called the quasi-interval hypergraphs. We find the conditions when they are interval hypergraphs. The upper chromatic number for the clique co-hypergraphs of
Violeta Prisakaru
doaj
ON THE COMPUTABLE LIST CHROMATIC NUMBER AND COMPUTABLE COLORING NUMBER
In this paper, we introduce two new variations on the computable chromatic number: the computable list chromatic number and the computable coloring number.
Thomason, Seth Campbell
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A note on Hadwiger’s conjecture for path-chromatic number [PDF]
Discrete Mathematics LettersHikaru Yokoi
doaj +1 more source
Asymmetric game perfect graphs and the circular coloring game of weighted graphs
, 2011 Zacharopoulos P. Asymmetric game perfect graphs and the circular coloring game of weighted graphs.
Zacharopoulos, Panagiotis
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Degradation Mechanisms, Encapsulation‐Based Stabilization, and Analytical Detection of Vitamin A
Journal of the American Oil Chemists' Society, EarlyView.ABSTRACT Vitamin A is an important lipid‐soluble micronutrient essential for vision, immune function, and overall growth and development. However, vitamin A is unstable and susceptible to environmental factors because of its conjugated structure and inherent chemical reactivity.
Latheesha Abeywardana +5 more
wiley +1 more source
Physiological chromatic model eyes for IOL characterization. [PDF]
Biomed Opt ExpressFaria-Ribeiro M +2 more
europepmc +1 more source