Shoot growth of mature Fagus sylvatica and Picea abies in relation to ozone (Publications)
growth was observed which corresponded to a 7.4% growth reduction between 0 and 10 ppm h AOT40 (accumulated ozone over threshold 40). This is in the same order of magnitude as the response observed in [...] observation plots and of Picea abies in 61 plots was evaluated for 11 and 8 consecutive years, respectively, using branches harvested every 4 years. The data were assessed as annual deviation from average growth
Shoot growth of mature Fagus sylvatica and Picea abies in relation to ozone (Publications)
growth was observed which corresponded to a 7.4% growth reduction between 0 and 10 ppm h AOT40 (accumulated ozone over threshold 40). This is in the same order of magnitude as the response observed in [...] observation plots and of Picea abies in 61 plots was evaluated for 11 and 8 consecutive years, respectively, using branches harvested every 4 years. The data were assessed as annual deviation from average growth
Quantitative structure: antiprotozoal activity relationships of sesquiterpene lactones (Publications)
depend to a large extent on the same structural elements and molecular properties. The observed variance in the biological data can be explained in terms of subtle variations in the relative influences of various [...] cells was assessed. Some of the compounds possess high activity, especially against T. brucei (e.g. helenalin and some of its esters with IC(50)-values of 0.05-0.1 microM, which is about 10 times lower than [...] significantly correlated with cytotoxicity and the major...
Quantitative structure: antiprotozoal activity relationships of sesquiterpene lactones (Publications)
depend to a large extent on the same structural elements and molecular properties. The observed variance in the biological data can be explained in terms of subtle variations in the relative influences of various [...] cells was assessed. Some of the compounds possess high activity, especially against T. brucei (e.g. helenalin and some of its esters with IC(50)-values of 0.05-0.1 microM, which is about 10 times lower than [...] significantly correlated with cytotoxicity and the major...
El-Ninõ Southern Oscillation (ENSO) and annual malaria incidence in Southern Africa (Publications)
temporary rain pools and is highly sensitive to fluctuations in weather conditions. South Africa and Swaziland have the most reliable data and showed the strongest associations, but the picture there may also [...] also be compounded by the moderating effect of other oscillatory systems in the Indian Ocean. The impact of ENSO also varies over time within countries, depending on existing malaria control efforts and [...] need for quantitative studies that at the same time consider both...
El-Ninõ Southern Oscillation (ENSO) and annual malaria incidence in Southern Africa (Publications)
temporary rain pools and is highly sensitive to fluctuations in weather conditions. South Africa and Swaziland have the most reliable data and showed the strongest associations, but the picture there may also [...] also be compounded by the moderating effect of other oscillatory systems in the Indian Ocean. The impact of ENSO also varies over time within countries, depending on existing malaria control efforts and [...] need for quantitative studies that at the same time consider both...
Statistical analysis of personal radiofrequency electromagnetic field measurements with nondetects (Publications)
values below the detection limit were replaced by the value of the detection limit. For the total RF-EMF exposure, differences between the naive approach and the robust ROS were moderate for the 90th percentile [...] RF-EMF sources. However, the large proportion of measurements below the detection limit is a challenge for data analysis. With the robust ROS (regression on order statistics) method, summary statistics can [...] (RF-EMF) exposure. The main advantages of exposimeter measurements are...
Statistical analysis of personal radiofrequency electromagnetic field measurements with nondetects (Publications)
values below the detection limit were replaced by the value of the detection limit. For the total RF-EMF exposure, differences between the naive approach and the robust ROS were moderate for the 90th percentile [...] RF-EMF sources. However, the large proportion of measurements below the detection limit is a challenge for data analysis. With the robust ROS (regression on order statistics) method, summary statistics can [...] (RF-EMF) exposure. The main advantages of exposimeter measurements are...
Effect of agricultural activities on prevalence rates, and clinical and presumptive malaria episodes in central Côte d'Ivoire (Publications)
irrigated rice perimeter is located in close proximity to human habitations, malaria prevalence rates in 2003 were significantly lower than in 2002 and 2005, which coincided with the interruption of irrigated [...] Although malaria transmission differed by an order of magnitude in the two villages in 2003, there was no statistically significant difference between the proportions of severe malaria episodes (i.e. axillary [...] underscores the complex relationship between malaria transmission,...
Effect of agricultural activities on prevalence rates, and clinical and presumptive malaria episodes in central Côte d'Ivoire (Publications)
irrigated rice perimeter is located in close proximity to human habitations, malaria prevalence rates in 2003 were significantly lower than in 2002 and 2005, which coincided with the interruption of irrigated [...] Although malaria transmission differed by an order of magnitude in the two villages in 2003, there was no statistically significant difference between the proportions of severe malaria episodes (i.e. axillary [...] underscores the complex relationship between malaria transmission,...
