Three-dimensional (3D), city models have been applied in a variety of fields. One of the main problems in 3D city model utilization, however, is the large volume of data. In this paper, a method is proposed to generalize the 3D building objects in 3D city models at different levels of detail, and to combine multiple Levels of Detail (LODs) for a progressive distribution and visualization of the ci

The Tamaulipas tragedy in 2010 proved a turning point for transit migration politics. This was one of the worst massacres on Mexican territory, in which 72 undocumented migrants, mostly from Central America, were kidnapped, tortured, and their dead bodies piled up in a ditch at a local ranch in the northern Mexican state. With this event, transit migrants became visible through their experiences o

Sverige har sedan december 2008 liberalare regler för arbetskraftsinvandring från ”tredje land” (länder utanför EU/EES) än kanske något annat land. De nya reglerna gäller alla yrken oberoende av kvalifikationsgrad eller om det är fråga om ett bristyrke eller inte. Artikeln handlar om de cirka 500 arbetskraftsmigranter från tredje land som 2012 beviljades arbetstillstånd i restaurang- och städbrans

Water loss is a crucial factor for vegetation in the semi-arid Sahel region of Africa. Global satellite-driven estimates of plant CO2 uptake (gross primary productivity, GPP) have been found to not accurately account for Sahelian conditions, particularly the impact of canopy water stress. Here, we identify the main biophysical limitations that induce canopy water stress in Sahelian vegetation and

It has been shown that vegetation growth in semi-arid regions is important to the global terrestrial CO2 sink, which indicates the strong need for improved understanding and spatially explicit estimates of CO2 uptake (gross primary production; GPP) in semi-arid ecosystems. This study has three aims: (1) to evaluate the MOD17A2H GPP (collection 6) product against GPP based on eddy covariance (EC) f

Background. Exposure to allergens plays a role in the development of atopic sensitization and influences allergic phenotype. House dust mites (HDM) are a common source of aeroallergens in many parts of the world. The relationship between indoor environment factors such as temperature, moisture/humidity, and ventilation and HDM allergen load is complex. Methods. Part of a larger study into the heal

In this paper the problem of automatic mapmaking is treated. The principles are discussed and details are given for a simple version of the problem where an autonomous vehicle moves on a factory floor. A semi-automatic approach has been developed, analyzed, simulated and nally tested for a commercial laser guided vehicle. The vehicle is equipped with a laser scanner that measures the direction but

Pain is a major health issue for each affected individual and has a large impact on health costs. Most of our knowledge about this defensive system rely on data from different animal experiments. There is an obvious need for a translational pain model allowing comparisons between experimental animals and humans. UVB irradiation of skin has been introduced as a valid translational pain model and th