Popular Abstract in English The production and use of bioethanol can help reducing the dependency on oil, and also represents a renewable source of energy. Bioethanol can be obtained from biomass such as agricultural and forest residues, after appropriate pretreatment and fermentation. This thesis addresses some of the challenges that must be overcome for the production of ethanol from biomass to The sustainable production of ethanol from lignocellulosic biomass requires the combination of efficient hydrolysis and complete fermentation of all the monomeric sugars present in the raw material. The present work was aimed at tackling some of the major challenges that will be encountered in commercial-scale ethanol production using Baker’s yeast, Saccharomyces cerevisiae, the preferred microorg

DNA- cationic amphiphile and DNA-cationic polymer systems were studied with respect to the intermolecular interactions, as well as structure and stability of formed complexes. The thesis is divided in two parts: one section is a summary and the other section contains five papers. The summary is organized as follows; Chapter 2 gives an overview on the behavior of polyelectrolytes in solutions with

Unemployment and precarity have become key features of 21st century work. Employability is presented as a solution to these issues. Individuals are exhorted to manage their employability, in order to be able to exercise choice in the labour market. While employability is individualsʼ responsibility, governments, employers and educational bodies simply provide opportunities for its development. Hig

Using the latest available data, this brief article attempts to provide the first regional decomposition analysis of CO2 emissions from fuel combustion. Covering eight regions of the world, determinants are estimated in relative and absolute terms for the period 1971-2010. We take the 2010 global surge in CO2 emissions as an entry point for the analysis. Overall, results show that most regions hav

Recent observations of the NN Serpentis post-common envelope binary system have revealed eclipse timing variations that have been attributed to the presence of two Jovian-mass exo-planets. Under the assumption that these planets are real and survived from the binary's main-sequence state, we reconstruct initial binaries that give rise to the present NN Ser configuration and test the dynamical stab

The Cone Calorimeter is a widely used advanced reaction to fire test, where a material’s fire properties is determined from test parameters such as time-toignition and heat release. The Cone Calorimeter has further a role in flame spread modelling, where data from the small-scale test can be used as input to models, or alternatively, the test can be used for validation purposes. In such cases, how

Based on published missionary reports and two conversion stories the missionary tactics and the used arguments from the Bible are presented alongside the Christian use of the conversion stories

Telomere-associated DNA in Chironomus pallidivittatus contains tandemly repeated 340-bp units. We show that they are distributed among several subtypes of which we have characterized two, M1 and D1, with regard to base sequence, homogeneity, and intertelomeric distribution. Each subpopulation is highly homogeneous and the two subtypes have identical consensus sequences throughout 90% of their leng

Sweden has a long history of maintaining population-based registries and biobanks. This has resulted in large sample collections with long follow-up and large numbers of prospectively occurring disease endpoints providing an extensive resource for genetic research. However, the largest biobanks contain sample materials that have previously been considered suboptimal for genetic research. We have

A production-system simulation model for manufacturing cost of a permanent-magnet based rotor, analyzing the influence of uncertain parameters by utilizing the Monte Carlo method. The uncertain parameters studied include investment and bill of materials costs as well as cycle time. The resulting influence of these uncertainties are presented for each case individually, as well as all possible comb

Popular Abstract in Swedish Vid total höftledsartroplastik är cementering av den konstgjorda ledpannan (cupen) ett allmänt sett välfungerande koncept, men frekvensen av lossning och åtföljande omoperation är fortfarande för hög. En av de viktigaste faktorerna för långtidsöverlevnad av protesimplantat är den initialt uppnådda fixationen och stabiliteten. Den föreliggande avhandlingen omfattar såvälIn total hip arthroplasty cemented fixation of the acetabular component is a generally successful concept, but the rate of aseptic loosening and consequent revision surgery is still too high. One of the crucial factors for longterm implant survival is the initial fixation and stability. This thesis comprises experimental and clinical studies, including radiostereometry (RSA) with up to 5 years fol