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Ferrochelatase is the terminal enzyme in haem biosynthesis, i.e. the enzyme that inserts a ferrous ion into the porphyrin ring. Suggested reaction mechanisms for this enzyme involve a distortion of the porphyrin ring when it is bound to the enzyme. We have examined the energetics of such distortions using various theoretical calculations. With the density functional B3LYP method we calculate how m
Background. To evaluate the relationship between age and poor ovarian response to pregnancy and cancellation rate after IVF stimulation. Methods. Poor ovarian response was defined as <= 5 follicles at ovum pick up (OPU). Out of 1,706 consecutive OPUs performed during 2003/2004, 290 poor responders were identified. This cohort of poor responders was divided into two groups, 'older' and 'younger', w
Due to the large-scale production of lignin, continuous flow reactors are preferred for its further valorization through depolymerization. However, there is limited literature on their use in lignin depolymerization, especially concerning feedstock pretreatments and catalyst deactivation. Therefore, in this study, the impact of a batch solvolysis pretreatment on the mild reductive catalytic depoly
This study explores how Swedish preachers incorporate AI chats such as ChatGPT into sermon preparation. Based on interviews, chat logs, and sermon manuscripts from six priests in the Church of Sweden, the study uses relevance theory to analyse the preachers' prompting and evaluation strategies. The preachers primarily use large language models (LLMs) for brainstorming and inspiration, critically e
Omprov SOCB33:1 The exam consists of four (4) questions. Each answer can give a maximum of (10) points. The total number of points is 40. Pass requires 15 points. The grade C requires 25 points. The grade B requires 30 points, and grade A requires 35 points or more. The answers can be written in this compendium and/or on separate sheets where you clearly mark which question you address. B
https://www.soc.lu.se/sites/soc.lu.se/files/2026-05/SOCB33%20dk1%20omprov.pdf - 2026-07-01
An air sampling method for the determination of isocyanates. aminoisocyanates and amines formed during the thermal degradation Of polyurethane (PUR) is presented. The method is based on the collection of air samples using impinger flasks containing di-n-butylamine (DBA) in toluene with a glass fibre filter in series. Isocyanates are derivatized with DBA to urea derivatives, and amines are derivati
This study compares the two traditional ventilation methods ; mixed ventilation and displacement ventilation, with a new type of dif fuser which attempts to solve the problem with blockage of the diffuser for the displacement ventilation. This new diffuser called Airshower is a product developed by Airson engineering AB whom is also the company where all simulations and tests for this study were
Syftet med uppsatsen är att redogöra för svensk rätt avseende ogiltighet av vilseledande avtal i förhållande till bluffakturor. Sedan tio år tillbaka har antalet polisanmälningar ökat markant rörande just bluffakturor, då finns det även ett stort mörkertal. Förutom att det drabbar många, är det betydande summor som årligen omsätts på grund av detta, således är detta ett ämne som förtjänar att belyThe purpose of this paper is to display Swedish law in regards to fake invoices and how these contracts under misleading agreements can be voided. The amount of police reports regarding fake invoices have increased significantly during the last ten years, one should also consider the big number of hidden statistics. Apart from the fact that it affects a lot of people it also has a high yearly turn
Lignin accounts for 15 – 30 % of plant biomass, but is till today remarkably underutilized, mainly due to its heterogeneity and recalcitrance towards depolymerization. The bacterial conversion of lignin into value added chemicals is a highly promising approach to overcome this underutilization and can help to improve the economic competitiveness of the biorefinery concept. In the current study, 1
It is very common nowadays to speak of an ''information society'' in which control of information or information based knowledge has replaced control over matter as an ultimate source of economic power. The intellectual creations protected through patents, trade marks, copyrights etc constitute often a huge part of the companies' intangible assets. For example, the value of the
This thesis discusses modeling and implementation of reconfigurable hardware architectures for real-time applications. The target application in this work is digital holographic imaging, where visible images are to be reconstructed based on holographic recordings. The reconstruction process is computationally demanding and requires hardware acceleration to achieve real-time performance. Thus, this
The average woman uses 11,000 tampons during her lifetime. Both sanitary pads and tampons have been proven to contain low levels of dioxins, which are a group of highly toxic environmental pollutants known to cause cancer, reproductive damage and endocrine disruption. Some scientists have concluded that dioxin levels in tampons are insignificant to the overall dioxin exposure of menstruating women
The increasing amount of renewable energy in the electrical grid comes with several challenges, of which overvoltage and congestion (overcurrents) are the subjects of this work. One flexible way of handling these problems is active management by some control system. There is a trade-off between simplicity when implementing the control system and the performance. In the project Active Network Manag
The study aims to gain an increased understanding of and insight into CBT psychotherapists ́ experiences of what is effective in psychotherapeutic treatment. A perspective of interest based on the fact that psychotherapists ́ experiences of what is effectivehave not previously been taken into account in research, that in the therapist ́s everyday life there may be a clash between theory and practi
For the past 30 to 40 years, well before the concept of sustainable development became politically correct, regulation of the environment has been covered by Environmental Protection Agencies worldwide. Perhaps one of the most important things that we have learned is that regulations have significant costs, not just benefits, and that analysis of the cost and benefit of proposed rules is an indisp
In the late Middle Ages, hundreds of Christians from all over Europe sent supplications to the Papal Curia to be freed from promises made under duress. This article analyses the supplications about forced marriages that were submitted to the Apostolic Penitentiary during the pontificate of Pope Innocent VIII (1484–92). The study is based on mainly unedited source material that has not been investi
This paper introduces an addressability logic for crafting research contributions to advance scientific and societal impact in marketing and consumer research. For research to be meaningful we ask: for whom? Using rhetorical audience analysis, we examine 80 interpretivist articles in four journals over twenty years to identify their intended addressees. We identify four audience categories along aThis paper introduces an addressability logic for crafting research contributions to advance scientific and societal impact in marketing and consumer research. For research to be meaningful we ask: for whom? Using rhetorical audience analysis, we examine 80 interpretivist articles in four journals over twenty years to identify their intended addressees. We identify four audience categories along a
