Se presentan 2 nuevos taxones herborizados en Andalucía, más concretamente la parte noroccidental de Sierra Nevada (Granada), aportando datos corológicos destacables y especial interés.

Previous theoretical and empirical studies suggest that CEOs' political connections are valuable to firms. We examine whether such connections become entrenched if the expected political capital fails to materialize and the firm lacks other types of political power. Using a sample of listed non-SOEs in China, we show that politically connected CEOs have a lower probability of turnover and cause...

Four populations of Sedurn wrightii were studied with respect to their photosynthetic carbon metabolism. This leaf-succulent species exhibits crassulacean acid metabolism (CAM). Plants that possess CAM have the potential to vary their rates of transpirational water loss greatly in response to drought. Leaf thickness and biomass 6I3C values were measured in mid growing season for the populations...

In order to investigate nocturnal uptake and assimilation of NO2 by C3 and crassulacean acid metabolism (CAM) plants, they were fumigated with 4 microl l(-1) 15N-labeled nitrogen dioxide (NO2) for 8 h. The amount of NO2 and assimilation of NO2 by plants were determined by mass spectrometry and Kjeldahl-nitrogen based mass spectrometry, respectively. C3 plants such as kenaf (Hibiscus cannabinus)...