Lars Persson results 29
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Distribution of plant pathogenic Aphanomyces species in Sweden, Denmark and Lithuania and its relationship with soil factorsNARA Subscribed
Three species of Aphanomyces, A. euteiches, A. cochlioides and A. cladogamus are devastating agricultural plant pathogens causing root rot disease on pea, sugar beet and spinach, respectively. Here we investigated the distribution of the three Aphanomyces species in parts of Sweden, Denmark and Lithuania using climate chamber soil bioassays, and tested for correlations with macronutrient levels in the soil. Aphanomyces euteich...
A methodology for mapping of quick clay in SwedenNARA Subscribed
Landslides may cause severe destruction that affects both the individuals and functions vital for society. Minor landslides in an area with quick clay may trigger secondary slides, influencing a much greater area compared to slides in areas with no quick clay. Today’s expanding societies demand new areas for exploitation. To effectively meet this demand, there is an increased need to identify areas where quick clay may occur....
A nationwide recreational fishing survey in Sweden was used to estimate the benefits of recreational fishing in Sweden. The survey targeted the Swedish population and, consequently, the sample contained a large fraction of zero fishing days. To consider this, a zero‐inflated Poisson model was used in the estimations. Swedes fished about 15.6 million days in 2013, of which two‐thirds were spent on inland fishing, and one‐third...
Parallel-sided foil sections are used for centerboards and rudders in sailing dinghy classes and also for struts placed in a fluid flow. The objective of this work is to create a systematic series of parallel-sided sections to be used under different conditions, with an emphasis on the sailing dinghies 470, 420 and Optimist. The loss, and surprisingly the gain, in performance relative to 4-digit NACA sections are also investig...
A positive influence of basal ganglia iron concentration on implicit sequence learningNARA Subscribed
Iron homeostasis is important for maintaining normal physiological brain functioning. In two independent samples, we investigate the link between iron concentration in the basal ganglia (BG) and implicit sequence learning (ISL). In Study 1, we used quantitative susceptibility mapping and task-related fMRI to examine associations among regional iron concentration measurements, brain activation, and ISL in younger and older adul...
Priorities and Preferences in Water Quality Management - a Case Study of the Alsterån River BasinNARA Subscribed
Sweden is a decentralised country where local managers, who are key actors in water management, often deal with relatively difficult prioritisations, tradeoffs and conflicting goals. Many of these challenges relate to the effective implementation of the European Union Water Framework Directive. As an input to these challenges, the present paper elicits and analyses local and semi-local citizens’ preferences for water quality a...