d(+) and 1(-) Methyl-2-chloro-3-(4-chlorophenyl)-propionate (common name chlorfenprop-methyl; trade mark Bidisin) were prepared and their herbicidal activities studied on Avena fatua L. and Avena sativa L. ("Flämingskrone"). The 1(-) enantiomer was found to be twice as active as the racemate; the d(+) form almost inactive.

Determining population viability of rare insects depends on precise, unbiased estimates of population size and other demographic parameters. We used data on the endangered St. Francis' satyr butterfly (Neonympha mitchellii francisci) to evaluate 2 approaches (mark-recapture and transect counts) for population analysis of rare butterflies. Mark-recapture analysis provided by far the greatest amo...

Abstract While geographical indications show origin, trade marks commercial origin. Therefore, it is possible to say that both and have distinctive character. Indeed, when an application filed register a indication as mark, important question whether the sign enough. In such cases, character of these ‘signs’ can overlap intersect with each other. this article, intersection relationship between ...

With heterogenous firms, inter-national trade is predicted to increase aggregate productivity through a selection effect. The same theoretical insight applies to intra-national trade between sub-national economies. In this paper, we attempt at quantifying the impact of firm selection attributable to both international and intra-national trade. To do so, we structurally estimate and simulate a m...

Innovation, mark-ups and the degree of trade openness vary substantially across sectors. This paper builds a multi-sector endogenous growth model to study the in‡uence of asymmetric trade liberalisation and sectoral di¤erences in the degree of product market competition on the e¤ect that trade has on R&D investments at a …rm level. I …nd that di¤erences in the degree of competition generate lar...