In the recent decades, one of the most phenomenal changes in many universities in Western countries is the dramatically increase of students from China. Subsequently, the thesis author mentioned that general view concerning educational tourism associates educational tourists with the international students’ mobility. This has emerged as an important part of the university students’tourism market.

The nitrification process is known to be the most sensitive link in biological nitrogen removal used in many wastewater treatment plants. Many different inhibitory substances can disturb these sensitive bacteria and in that way cause reduced nitrogen removal. The aim of this study was to investigate the nitrification inhibition in a laundry wastewater before and after internal chemical treatment.

Populärvetenskaplig sammanfattning: Hur ska vi fiska torsk i Öresund? Debatten om man ska fiska torsk i Sverige och i så fall hur har pågått under en längre tid. Detta för att torsken har minskat kraftigt efter år av överfiske. I Öresund har torskbeståndet dock klarat sig bättre, då trålfiske i sundet är förbjudet för sjöfartens skull. Här är torsken även ganska stor jämfört med övriga ÖstersjönThe objective of this study was to analyze recreational and commercial fishing and their respective effect on revenue and catches in the cod fishery in Öresund. This was done by including both recreational and commercial fishing in a bio-economic model. The results from the bio-economic model suggest that more fishing effort is being put in on the cod stock than what is most cost effective, by bot

Populärvetenskaplig sammanfattning: Kartläggning av långbensgroda på Öland Amfibier världen över har minskat kraftigt sedan1970-talet. Orsakerna är många men flera är okända. Fem av tretton amfibier i Sverige är hotade och åtgärder genomförs för att öka arters populationer. Biogeografisk uppföljning är ett nationellt program för uppföljning av amfibier som kan upptäcka förändringar i en arts popAs a result of e.g. habitat loss and diseases, a global decline of amphibians is a fact. In order to prevent further declines and to improve the conservation status for amphibians in Europe, the member states have to report the status for amphibians every sixth year to EU. In Sweden, the County Administrative Board in Scania is responsible for coordinating the biogeographic monitoring of amphibian

Syftet med denna rapport är att granska och utvärdera den praxis som finns idag i fråga om hur kommuner hanterar anslutning av industrier och verksamheter till det kommunala, REVAQ-certifierade reningsverket. Anledningen till detta är att det slam som uppstår vid rening av avloppsvatten har ett högt innehåll av närsalter. Detta innebär att slammet kan nytt-jas som gödningsmedel, förutsatt att det

The aim of this thesis is to investigate double taxation treaties impact on intermediate trade. Based on a panel data sample of five partner countries and 39 reporter countries over the period 1990-2012, the impact of signing DTTs on imports of intermediate trade in goods between two countries is analysed through a Gravity model. The main results show that DTT signing is associated with an increas

Agricultural intensification and its effect on spiders and their prey Spiders are abundant predators that can be very useful for biological control, as they eat insects that can damage crops. To study the potential of this group as biocontrol agents it is necessary to understand the trophic relationships and the factors that affect the distribution of both spiders and their prey. For this purpos

Abstract is attached at the heading Related Materials.

Cyanobacteria possess unique and exciting features among photosynthetic microorganisms for energy conversion applications. This thesis project focuses on conversion of solar energy into photocurrent generation comparing three different strains of Cyanobacteria, Leptolyngbia sp. from New Zealand (CYN82), Leptolyngbia sp. from Antarctica (CYN65), Chroococcales sp. from Antarctica (CYN67) and one euk

Development of environmentally friendly and cost-efficient energy sources has been a challenge for modern society since long ago. Sunlight is an infinite and costless source of energy on Earth, so it would be an enormous advantage to efficiently harvest and transform it into electrical energy used in our everyday life. In nature the process, which converts light energy into chemical energy, is cal

Dye sensitized solar cells (DSSCs) recently attracted much attention as a relatively efficient and inexpensive light-to-electricity energy conversion solution. So far the best performing DSSC devices were produced employing ruthenium (RuII) complexes as the active material, nevertheless limited resources of this metal initiated the research of new alternatives. Iron is one of the most abundant ele

This thesis aims to investigate the electrical properties of the organic charge transfer complex Tetrathiafulvalene-7,7,8,8-Tetracyanoquinodimethane, TTF-TCNQ. This is done through two different experimental techniques: Hall characterization and terahertz measurements. Before performing the experiments, suitable devices for these techniques were designed and produced. The layer of TTF-TCNQ was eva

Popular summery is attached at the heading Related Materials.Abstract is attached at the heading Related Materials.

The excitation energy transfer properties of dimer systems and the light harvesting complex 2 of purple bacteria are investigated using the hierarchy equations of motion approach. While the bacteriochlorophyll molecules are modeled as electronic two level systems applying the Frenkel exciton Hamiltonian, intramolecular vibrations and environmental uctuations are included via an experimental and mo

The abstract is attached under the heading Related materials.

Alzheimers sjukdom är den vanligaste orsaken till demens. Bland dem som är 65 år eller äldre, lider var åttonde person av sjukdomen. Åldrande, våld mot huvudet och nära släktskap med någon med Alzheimer är några riskfaktorer. Orsaken till symptom, såsom förvirring och minnesförlust, är att hjärncellerna bryts ner. Nedbrytningen beror i sin tur på att det sker en ökad produktion av det så kallade bThe aggregation of amyloid-β peptide (Aβ) into amyloid fibrils and plaques is one culprit to Alzheimer’s disease pathogenesis. Once a small concentration of amyloid fibrils has formed through primary nucleation, a fibril-catalysed secondary nucleation takes over, leading to a close to exponential growth. Here, we have investigated the effect of five (J46, I48, J44, I68 and J7) out of twelve previo

Milk is a complex liquid, which contains many different species, for example proteins, fat, minerals etc. It is the primary source of nutrition for young mammals before they are able to digest other types of food. The proteins can be divided into two groups: caseins and whey. Whey proteins are about 20 wt % of the total protein amount in milk, whereas the caseins corresponds 80 wt % of the total p

Malaria är en av de tropiska sjukdomarna som utgör ett stort hälsoproblem i många delar av världen. Sjukdomen orsakas av en så kallad tropisk parasit av släkte Plasmodium och överförs till människor via mygghonan Anopheles. Den vanligaste och mest dödliga formen av sjukdomen orsakas av Plasmodium falciparum (Pf). Den förekommer i 104 länder där ca. 216 miljoner nya fall registreras årligen. Av desMalaria is one of the diseases that spread by insect vectors. The disease is carried to humans by female Anopheles mosquitoes. It is caused by the plasmodium types. The most prevalent and dangerous type of plasmodium is Plasmodium falciparum (Pf). The disease occurs in 104 countries and approximately 216 million new cases of malaria and around 655,000 deaths takes place every year. Many drugs have

Ensamstående mödrar känner oftare stress i vardagen än andra föräldrar. Vid ökad föräldrastress visar barnet ett mer utåtagerande beteende och anknytningen till föräldern försämras. Syftet med studien var att få kunskap om vilka faktorer som påverkade stressen hos ensamstående föräldrar och om hur de förhöll sig till dessa. Tolv intervjuer utfördes utifrån ett bekvämlighetsurval. De faktorer som p