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Inbreeding within human Schistosoma mansoni Instituut voor Tropische Geneeskunde Universiteit Gent KU Leuven
The size, structure and distribution of host populations are key determinants of the genetic composition of parasite populations. Despite the evolutionary and epidemiological merits, there has been little consideration of how host heterogeneities affect the evolutionary trajectories of parasite populations. We assessed the genetic composition of natural populations of the parasite Schistosoma mansoni in northern Senegal. A total of 1346 ...
Amorphous Silica Preservation in an Anthropogenic Soil: An Explorative Study of "Plaggen" Soils KU Leuven
Amorphous Silica (ASi) is present in considerable amounts in most soils and serves as a (micro-)nutrient for many plants. However, our understanding of the response of this important nutrient pool to human or natural disturbances is still very limited. One of the reasons for this is the long time scales involved. This explorative study focuses on the effect of a historical agricultural system, called plaggen management, that was applied on sandy ...
Amorphous silica preservation in an anthropogenic soil Universiteit Antwerpen
Amorphous Silica (ASi) is present in considerable amounts in most soils and serves as a (micro-)nutrient for many plants. However, our understanding of the response of this important nutrient pool to human or natural disturbances is still very limited. One of the reasons for this is the long time scales involved. This explorative study focuses on the effect of a historical agricultural system, called plaggen management, that was applied on sandy ...
An exploratory study of Helicobacter suis control strategies Universiteit Gent
Helicobacter suis is a Gram-negative, spiral-shaped bacterium that colonizes the stomach of the majority of slaughter pigs worldwide. An infection with this microorganism has been associated with erosive and ulcerative lesions in the non-glandular part of the porcine stomach and with chronic gastritis. A reduction in daily weight gain in experimentally infected pigs has been described, emphasizing the importance of H. suis infections for the pig ...
Role of hemozoin in malaria immunopathologies KU Leuven
Malaria is a life-threatening disease caused by Plasmodium parasites and transmitted by Anopheles mosquitoes. According to the annual world malaria report of the World Health Organization, an estimated 216 million people were clinically affected by malaria in 2010 and approximately 655 000 of these patients died from severe complications. Intraerythrocytic parasite replication, cytoadherence to the microvascular endothelium of several organs to ...
Traits related to species persistence and dispersal explain changes in plant communities subjected to habitat loss KU Leuven
Aim Habitat fragmentation is a major driver of biodiversity loss but it is insufficiently known how much its effects vary among species with different life-history traits; especially in plant communities, the understanding of the role of traits related to species persistence and dispersal in determining dynamics of species communities in fragmented landscapes is still limited. The primary aim of this study was to test how plant traits related to ...
Period coding of **Bmal1** oscillators in the suprachiasmatic nucleus Universiteit Antwerpen
Circadian oscillators in the suprachiasmatic nucleus (SCN) collectively orchestrate 24 h rhythms in the body while also coding for seasonal rhythms. Although synchronization is required among SCN oscillators to provide robustness for regular timekeeping (Herzog et al., 2004), heterogeneity of period and phase distributions is needed to accommodate seasonal variations in light duration (Pittendrigh and Daan, 1976b). In the mouse SCN, the ...
Global diversity of sponges (Porifera) Vlaams Instituut voor de Zee
With the completion of a single unified classification, the Systema Porifera (SP) and subsequent development of an online species database, the World Porifera Database (WPD), we are now equipped to provide a first comprehensive picture of the global biodiversity of the Porifera. An introductory overview of the four classes of the Porifera is followed by a description of the structure of our main source of data for this paper, the WPD. From this ...
Techniques to determine ventilation rate and airflow characteristics through naturally ventilated buildings KU Leuven
This thesis contributes to ventilation studies for various applications, including animal houses, residential buildings, and food storage facilities.With an increased awareness of the cost and environmental impacts of energy use, natural ventilation has become an increasingly attractive method for reducing energy use and cost, for providing acceptable indoor environmental quality, and for maintaining a healthy, comfortable, and productive indoor ...