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The main advantage of a heated-grid reactor for studying pyrolysis kinetics of solid fuel samples is that high heating rates of up to 1000 K/s can be obtained. However, one of the concerns is whether the temperature distribution over the grid material is uniform and whether the presence of a thermocouple welded to the grid causes any measurement errors. Biomass samples were placed on the heated-gr
OBJECTIVE: To illuminate the lived experience of women facing the threat of lossing their newborn child and then experiencing the reality of their infant's death. STUDY DESIGN: Sixteen women were interviewed approximately 2 years after the death of their infant using a hermeneutic phenomenological approach. FINDINGS: The main theme was ambivalent transition into motherhood. The women went through
Popular Abstract in Swedish Under 1900-talets inledande decennier genomfördes fältarbeten på den svenska landsbygden då äldre bebyggelse och byar dokumenterades på bild och i ord. Dessa dokumentationer ingick i ett större sammanhang, där ambitionen var att alla aspekter av en förmodat försvinnande allmogekultur skulle kartläggas, samlas in och arkiveras. By- och bebyggelsedokumentationerna utfördeIn the first decades of the twentieth century there were fieldwork expeditions in rural Sweden, documenting archaic buildings and villages in words and pictures. These documentation efforts were part of a larger context, where the ambition was to survey and collect all aspects of what was presumed to be a vanishing peasant culture. The documentation was carried out by several different museums and
Abstract in UndeterminedYou may think that your requirements engineering process is fairly limited and currently not too complex to manage. Or you may be right in the middle of a storm of requirements where it is impossible to manage even the most important ones comprehensively. If you are in the former situation, it may be dangerous to relax as many successful software-intensive products have a t
A PCR based survey of Festuca ovina plants from populations around the southern part of the Baltic Sea demonstrates both geographic and molecular variation in the enzyme gene PgiC2, horizontally transferred from a Poa-species. Our results show that PgiC2-a natural functional nuclear transgene-is not a local ephemeral phenomenon but is present in a very large number of individuals. We find also tha
The machinability of two prehardened mould steels, one continuously-cooled and one quenched and tempered, is compared in terms of cutting temperature, cutting force and tool life. Both materials have a hardness of similar to 40 HRC which is a typical hardness for prehardened mould steels. The results of machinability tests are related to mechanical properties and microstructural features, and the
Alkane C-H bond activation by various catalysts and enzymes has attracted considerable attention recently, but many issues are still unanswered. The conversion of ethane to ethanol and ethene by bare [Fe-III=O](+) has been explored using density functional theory and coupled-cluster method comprehensively. Two possible reaction mechanisms are available for the entire reaction, the direct H-abstrac
This study examines the visual representations of the European Union (EU) in political cartoons on the 2004 enlargement and the 2009-2012 Eurozone debt crisis, and the interactions between these depictions and Europe’s socio-political order. Carried out on fourteen political cartoons (out of a 300-cartoon corpus), the visual analysis is based on the theories of traditional semiotics, social semiot
Three standard approaches of finding Value at Risk; age weighted historical simulation, volatility weighted historical simulation and t – distribution were compared with Value –at – Risk calculated using generalized extreme value theory during the period 2000 to 2010 to see which approach that would give the most accurate forecast of actual losses during the two volatile times within the time fram
Understanding Sense Perception We all need to perceive sensations such as pain; cold or pungent chemicals in order survive. In elucidating sense perception, we investigate TRPA1 which is a major player in sensation. Transient Receptor Potential (TRP) is a large family of ion channels that are found in membrane of biological cells. They were first discovered in fruit fly in 1969 and this discovery
Purpose: This study aims at researching how the ethical issues raised by big data practices can be used to motivate internal CSR actions based on stakeholder engagement. Methodology: The study applies a qualitative approach based on a participant observation while the authors were doing an Internship in the innovation department at Aller Media A/S. A set of semi-structured interviews with employee
Världen förändras kontinuerligt. Företag arbetar idag hårt för att hålla jämna steg med omvärlden för att på så vis hålla sig konkurrenskraftiga. Att arbeta för att hitta nya affärsmöjligheter har blivit av allt större betydelse. IKEA är ett globalt företag som står inför en enorm tillväxt för att nå deras mål till år 2020. För att klara denna tillväxt och för att kunna säkra försörjningen till nyThe world is continuously changing. Today many companies work hard to keep up with the surrounding world to stay competitive. To work with finding new business opportunities has become of higher importance than ever. IKEA is a global company facing a tremendous growth to reach their goal for 2020. To manage this growth and be able to secure supply to new retail markets, the company needs to increa
This study investigates the process of how eight people left competing informal institutions, in the form of gangs, to join substitutive informal institutions, which is more compatible with a democratic society, and in this way became ‘good citizens’. The research question is as follows: How do ex-gang members explain their change in lifestyle, from past involvement in gangs to the subsequent tran
Aqueous two-phase systems have frequently been utilized as an efficient bioseparation tool in the downstream processing of different biomolecules. The poly(ethyleneglycol)/poly(acrylate)/salt system, already explored successfully for purification of proteins and plasmid DNA, is here presented as an alternative approach for the isolation of small DNA fragments generated during in vitro DNA polymera
Background: Glial cell line-derived neurotrophic factor (GDNF) is the most promising neurotrophin for restorative treatments in Parkinson's disease, but its biological effects are not completely understood. Objective: To define a model of GDNF gene therapy in the mouse, we studied the long-term effects of lentiviral GDNF delivery in mice with striatal 6-hydroxydopamine (6-OHDA) lesions. Methods: L
The theme of this thesis is to study discretizations of nonlinear dissipative evolution equations, which arise in e.g. advection-diffusion-reaction processes. The convergence analysis is conducted by first considering an abstract time discretization of the problem, which enables a decoupling of the time and spatial approximations, and secondly by introducing the spatial discretization as an evolut
A critical review is presented on the state of knowledge and calculation capability for coastal overwash. Overwash and overwash deposits (washover) accompanying hurricanes and severe storms can devastate coastal communities and habitat, but in many areas these processes are essential for maintaining the integrity of barrier islands while creating new habitat. This review covers general studies of
Background: There is a shortage of reports on what potential recipients of implantable cardioverter-defibrillators ( ICDs) need to be informed about and what role they can and want to play in the decision-making process when it comes to whether or not to implant an ICD. Aims: To explore how patients with heart failure and previous episodes of malignant arrhythmia experience and view their role in
During B and T cell differentiation and proliferation many genes are induced or repressed while certain genes are constitutively expressed. To investigate processes related to B and T cell activation, the gene expression of stimulated and nonstimutated Ramos and Jurkat cells was studied using cDNA microarray technology. Simultaneous analysis of close to 600 genes indicated highest increase in the
