Search for dissertations about: "P Johannesson"

Showing result 1 - 5 of 6 swedish dissertations containing the words P Johannesson.

  2. 1. Transport and Sorption Phenomena in Concrete and Other Porous Media

    Author : Björn Johannesson; Göran Fagerlund; Avdelningen för Byggnadsmaterial; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Durability; Sorption; Capillary suction; Diffusion; Convection; Concrete; Byggnadsteknik; Mixture Theory; Building construction; Byggteknik; Civil engineering; Durability; Sorption; Capillary suction; Diffusion; Convection; Concrete; Byggnadsteknik; Mixture Theory; Building construction;

    Abstract : The work presented in this thesis is mainly focused on transport processes involved in service life predictions of concrete. Two papers and three reports deal with ion transport in pore solution of concrete. READ MORE

  4. 2. Lower Limb Amputation in Patients with Vascular Disease

    Author : Anton Johannesson; Lund Ortopedi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; rehabilitation outcome; prosthetic; mortality; amputation; Incidence; limb;

    Abstract : The current prevalence of persons amputated at transmetatarsal level or higher in Sweden can be estimated to be between 5000 and 5500 persons (approx. 0.06 % of the population). The majority of these are patients with vascular disease (≈ 80%). READ MORE

  5. 3. Analysis of phosphorus retention variations in constructed wetlands receiving variable loads from arable land

    Author : Karin Johannesson; Karin Tonderski; Charlotte Kjaergaard; Stefan Weisner; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Seven wetlands, constructed on agricultural land in the south of Sweden, were investigated with respect to phosphorus (P) retention. The overall aim was to increase the understanding of P retention and find possible explanations for the variations in retention that have been observed in previous studies. READ MORE

  6. 4. Particulate phosphorus accumulation and net retention in constructed wetlands receiving agricultural runoff : Critical analysis of factors affecting retention estimates

    Author : Karin Johannesson; Karin Tonderski; Stefan Weisner; Uno Wennergren; Ben Surridge; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Phosphorus retention; constructed wetlands; agriculture; sampling strategy;

    Abstract : Övergödning är ett allvarligt miljöproblem, som bland annat orsakar omfattande blomningar av alger och blågrönbakterier. I söt- och brackvatten är fosfor ofta det mest begränsande näringsämnet för dessa organismer, varför en minskning av fosfortillförseln är nödvändig för att nå förbättringar. READ MORE

  7. 5. Drivers of evolutionary change in Podospora anserina

    Author : Sandra Lorena Ament-Velásquez; Hanna Johannesson; Bengt Olle Bengtsson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Podospora; Meiotic drive; Spore killing; vegetative incompatibility; heterokaryon incompatibility; allorecognition; speciation; Transposable elements; selfish genetic elements; fungi; Biology with specialization in Evolutionary Genetics; Biologi med inriktning mot evolutionär genetik;

    Abstract : Genomic diversity is shaped by a myriad of forces acting in different directions. Some genes work in concert with the interests of the organism, often shaped by natural selection, while others follow their own interests. The latter genes are considered “selfish”, behaving either neutrally to the host, or causing it harm. READ MORE