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The first part of this thesis investigates if probing control can be applied to glucose feeding of the bacteria Bacillus subtilis producing the enzyme xylanase. The experimental work reveals unexpected results, where growth and cell/glucose yield are significantly lower in the feed phase than in the batch phase of a fed-batch cultivation. The reason for this is still unclear, but some hypotheses a
Syftet med denna studie var att undersöka hur studenters kreativitet påverkas av användandet av Instant messenger och elektronisk media. Hypoteserna var att studenter som använder instant messenger kommer prestera sämre på kreativitetstest och att det finns en negativa relation mellan hög medieanvändning och prestation på kreativitetstest. Studien utfördes som ett experiment på totalt 50 studenterThe purpose of this study was to examine how students' creativity is affected by the use of Instant Messenger and electronic media. The hypotheses were that students who use Instant Messenger will underperform on creativity tests, and that there is a negative relationship between high media usage and performance on creativity tests. The study was conducted as an experiment on a total of 50 stu
Biogas production is a renewable energy technology of great potential. The produced gas can be used for heat production, combined heat and power production, vehicle fuel production or as replacement for natural gas. The technology brings about synergic benefits as it is a means of waste management and since the digested material is a valuable fertiliser.An increased production of biogas is advocat
This study attempts to ask one question: are there structural characteristics of the hotel industry that has caused it to historically be reluctant in embracing environmental responsibility? To do so, the study draws on a number of different research areas in different disciplines, including business, management, and environmental management. It also attempts to draw upon industry sources like tra
In this thesis, a new theoretical framework is developed to study the relationship between human capital and economic development in a different perspective. The aim of this thesis is to examine the relationship between output composition and composition of education expenditure. Output composition is represented by the share of high value added sectors in total value added and composition of educ
Abstract in UndeterminedIncreasing demand for food, fuel and fibre promotes the intensification of land-use, particularly in areas favourable for agricultural production. In less-favourable areas, more wildlife-friendly farming systems are often either abandoned or under pressure of conversion, e.g. for bioenergy production. This raises the question, to which extent areas of different agronomicpot
The clustering processes of monohydric alcohols (from methanol to hexanol) were investigated by FTIR spectroscopy using the isolation in an argon matrix technique. The transformation of the FTIR bands of the free O-H groups (3600-3800 cm(-1)) into diffuse bands (3000-3600 cm(-1)), which were assigned to the stretching vibrations of the H-bonded O-H groups in various clusters, was monitored in its
Aim: Vascular endothelial growth factor (VEGF) signaling is frequently altered in invasive tumor cells and is associated with patient outcome. In the present study, we examined VEGF, VEGFR1, and VEGFR2 expression in non-muscle invasive bladder cancer (NMIBC) and muscle invasive bladder cancer (MIBC), and evaluated the association between VEGF and its receptors with disease characteristics and blad
The target for the oral erectile dysfunction drugs, phosphodiesterase type 5 (PDE5) inhibitors, is part of a pathway implicated in the development of malignant melanoma. An increased risk of melanoma in sildenafil users was recently reported.
The aim of this paper is to explore the relation between the critical knowledge base of firms and how firms respond to incentives embedded in the institutional framework surrounding them. The analysis gives us a better understanding of the complex development of the food sector in Southern Sweden in the past decades. Theoretically, the paper combines concepts of path dependency and knowledge bases
Production of chiral amines using omega-transaminases has been thoroughly studied in recent years. Immobilized w-transaminases, however, have been used on relatively few occasions despite potential benefits such as reuse of enzyme and ease of product purification. In this study principally different methods including surface immobilization, entrapment and sweep flocculation using titanium oxide. C
A novel set up composed of an anaerobic biofilm reactor followed by ozonation was used for treatment of artificial and real textile effluents containing azo dyes. The biological treatment efficiently removed chemical oxygen demand and color. Ozonation further reduced the organic content of the effluents and was very important for the degradation of aromatic compounds, as shown by the reduction of
The milk metabolomes of 407 individual Swedish Red dairy cows were analyzed by nuclear magnetic resonance spectroscopy as part of the Danish-Swedish Milk Genomics Initiative. By relating these metabolite profiles to total milk protein concentration and rheological measurements of rennet-induced milk coagulation together using multivariate data analysis techniques, we were able to identify several
Adsorption of a series of charged bottle-brush polymers with side chains of different length on solid surfaces is modeled using a lattice mean-field theory. The bottle-brush polymers are modeled Lis being composed of two types of main-chain segments: charged segments and uncharged segments with ill attached side chain. The composition variable X denotes the percentage of charged main-chain segment
The purpose of this retrospective study was to systematically search for acute adverse reactions and long-term complications in all patients that had been administered gadofosveset at our hospital.
The composition of milk fat from dairy cows is related to both genetic and environmental factors. Here, the effect of feed and herd was examined in 3 Scandinavian breeds, namely Danish Holstein-Friesian (DH), Danish Jersey (DJ), and Swedish Red (SR). In total, milk samples from 1,298 cows kept in indoor housing systems were collected from 61 conventional dairy herds in Denmark and Sweden. The fatt
In selecting cows for higher milk yields and milk quality, it is important to understand how these traits are affected by the bovine genome. The major milk proteins exhibit genetic polymorphism and these genetic variants can serve as markers for milk composition, milk production traits, and technological properties of milk. The aim of this study was to investigate the relationships between casein
