A synopsis for the genus Commelina in the state of Rio de Janeiro, Brazil, is presented here, including a new species, ten new synonyms, five designated lectotypes, two designated epitypes and an excluded name. Commelina huntii, a new species, is remarkable due to the combination of rusty to rusty-brown hairs at the margin of its leaf-sheaths, connate spathes, white flowers with auriculate medi...

Abstract Leaf spinescence in pineapple plants was evaluated a total of 2.014 F1 individuals as follows: 1.125 the progeny Imperial BRS cv. × Perola cross, and 889 Pico de Rosa cross. The genetic hypothesis with two loci epistatic interaction piping (P) over spiny (S) trait tested. chi-square test performed on deviations between observed expected numbers based hypotheses formulated. “BRS Imperia...

as bacteriology and chemistry are concerned, but on the other hand he might well have devoted more space to the discussion of such important questions as the position of Gartner's bacillus in reference to Widal's reaction, or of the D2 bacillus in connection with epidemics of diphtheria. Many of the chapters might be fuller. The chapter on Air, for example, contains eighty-seven pages, and of t...

Canthaxanthin is a naturally occurring chemical, which is most commonly utilized as a colorant for food and dyes or a skin bronzing agent. Its most prevalent impact on human health is canthaxanthin retinopathy, which appears as birefringent, yellow to red crystals surrounding the macula. This occurs with increasing, dose-dependent exposure. Generally, patients remain asymptomatic and findings m...

We derive an upper bound on the generalization error of classi ers which can be represented as thresholded convex combinations of thresholded convex combinations of functions. Such classi ers include single hidden-layer threshold networks and voted combinations of decision trees (such as those produced by boosting algorithms). The derived bound depends on the proportion of training examples wit...

an important factor in the growth medium of plants and chemical plants. native substrates can be used to improve plant performance. to evaluate the effect of growth medium on the herb f. benjamina experimental design was completely randomized with eight treatments and four replications were carried out in the research greenhouse of islamic azad university of jiroft. f. benjamina  plants from ve...

gilan province is among the most important regions of iran for rice production. the general aim of this research is to determine the best variety of rice for planting, so that the minimum level for farmer's expected living gross margin can be provided. on the other hand, determining the best variety with regard to the risk in price is another aim of this research. to this end two risk models ba...