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When designing a building one must consider safety aspects. One such aspect is that in the case of an emergency people should be able to efficiently evacuate the building. In this paper we investigate how the width-profile of a corridor leading to an exit might affect the efficiency of evacuation. We model the dynamics of crowds using a continuum model, leading to a one-dimensional non-linear hype
This master thesis project proposes methods for individualizing closed-loop controlled anesthesia. One of the largest challenges with closed-loop anesthesia is the variation between patients in the sensitivity to the anesthetic drug, here propofol. Due to limited excitation in the process dynamics together with a high measurement noise level is it not possible to determine a full reliable model de
Artificial Neural Networks (ANN) are used to prognosticate the outcome of patients suffering from an out-of-hospital cardiac arrest. A prognosis is made for different periods, dependent on when data becomes available: at admission, day one, day two, and day three. Previous research has achieved an Area Under the Curve (AUC) of around 0.82 for the early prediction (admission) using the same data. T
Att skriva musik är något som har varit närvarande under hela mitt liv. Jag skrev min första låt när jag var åtta år och efter det har musikskapande varit en stor del av mitt musicerande. Att jobba med barn i de lägre åldrarna har också varit ett arbete som lockat mig. Jag har dock känt att jag saknar kunskap om hur barn i den åldern tar till sig musik och funderat över om sättet vi musicerar med Writing music has always been an important part of my life. I wrote my first song when I was eight years old and since then, making music has been a huge part of me as a musician. Working with children has also been something that I have found interesting but I have always felt like I did not have sufficient knowledge to do so. I have also wondered if the current way to make music for young childr
Digitalisation has had a profound effect on our society. Much of our daily lives revolve around digital errands that, providing we have the appropriate skills, provide us with innumerous conveniences. Unfortunately for those who do not have such competencies, these normal everyday tasks have become unmanageable and as a result of the McDonaldization of society there are very few places to which th
The structural properties in the ground and the excited states of the hexa-coordinated iron carbene molecule FeIII(phtmeimb)2PF6 were investigated by ultrafast time-resolved X-ray absorption spectroscopy (XAS)techniques. Namely X-ray absorption near edge structure (XANES) and Extended X-ray Absorption FineStructure (EXAFS). Data from a time-resolved pump-probe synchrotron radiation experiment was
The separation of hemicelluloses, like glactoglucomannans, from lignocellulosic process streams is an important step in building profitable lignocellulosic biorefineries. The most common method for the separation is membrane filtration, however, it has the draw-back of being sensitive to membrane fouling. To better understand the fouling process, it is desirable to be able to model the adsorption
Studien syftar till att undersöka uppkomsten av fenomenet alkoholfri reklam. Bakgrunden visar på att stora varumärken satsar stora summor på sin alkoholfria marknadsföring men statistiken visar på att försäljningen av de alkoholfria alternativen inte motsvarar investeringarna. Studiens forskningsfrågor intresserar således sig av budskapen i den alkoholfria reklamen, utformningen av dessa och dess The study aims to investigate the emergence of the phenomenon of non-alcoholic advertising. The background shows that large brands have invested a lot of money in their non-alcoholic marketing through the years, but the statistics show that the sale of the non-alcoholic alternatives does not correspond to the investments done by the brands. The study's research questions are thus interested in
Cell death is an important field of biology that is linked to many other topics in medicine and biology. One of the methods to investigate cell death is through high content screening (HCS) which makes use of robotic microscopy. By this technology, cell death associated organelle membrane permeabilisation and the localisation of certain dyes can be visualised and elucidate a substantial amount of
The master thesis is a collaboration between Trelleborg AB and the division of Production and Materials Engineering at Lund University, Faculty of Engineering. The objective of the thesis has been to analyse the current production system from a lean perspective, identify an area in need of improvement and generate concrete solutions for how the studied area can be improved in terms of cost, perfor
Colorless distributed combustion (CDC) is a promising novel technology to reduce emissions of carbon monoxide and nitrogen oxides in gas turbine combustors. CDC features a different flame regime than conventional gas turbine combustors, associated with a distributed reaction zone and low and uniform temperatures due to dilution of combustion air with exhaust gases. In this thesis, an attempt has b
A protein’s function is directly related to its structure, which is in a water medium where it is affected by hydrogen bonds and the hydrophobic effect. These interactions are in turn dependent on the water molecules’ orientations around the protein. Therefore, it is vital to have correct orientations for the water molecules. Such information can be obtained by neutron crystallography. However, ev
Research and poll results suggest an ongoing crisis in modern Western European workplaces with high levels of indifference at work underlined by low engagement levels. Data aggregated from 2014 to 2016 by Gallup World Polls state that only 10% of Western European employees are engaged at work while 71% are not engaged and 19% are actively disengaged (Gallup, 2017). These numbers highlight an urgen
The primary aim of this essay is to add new insight as to the productivity and universality of phonaesthemes in general, and the sl-phonaestheme in particular. The data presented in this essay is generated in two ways: lexical analyses and an experiment. The lexical analyses show that the dominant semantic features of words beginning with the cluster sl- are the same in English and Swedish, namely
In markets with fierce competition and low switching costs, the capability to keep customers is just as important as the capability to get new customers. One of the cornerstones of efficiently keeping customers from churning is the ability to identify customers that are more prone to leaving the company than others. This way, churn prevention resources and measures can be efficiently directed towa
Barn som upplever våld i hemmet har innan 2021 inte haft ett straffrättsligt skydd i svensk lag. Det finns studier som visar att var tionde barn i Sverige någon gång har upplevt våld mellan närstående. Situationen där vuxna utövar våld i vad som ska vara barnets tryggaste zon, kan ge förödande konsekvenser, både fysiskt som psykiskt. Den 14 juni 2018 beslutade regeringen att tillsätta en särskildBefore 2021, children who experience violence in their homes have not had criminal protection in Swedish law. There are studies that show that every tenth child in Sweden has ever experienced violence between relatives. The situation where adults use violence, in what should be the child's safest zone, can have devastating consequences, both physically and mentally. On 14 June 2018, the govern
The aim of this study was to investigate the strategies foreign-born women choose to use in order to succeed in establishing themselves in the labor market in their new home country and to illustrate the reasoning of foreign-born women about negative and positive experiences in their situation. Foreign-born women are often faced with unemployment to a greater extent than foreign-born men and nativ
Frågan om en typ av ledarskap är bättre än en annan är något som ofta har diskuterats. I många fall prioriteras effektivitet och lönsamhet över trivseln hos arbetstagare vilket kan leda till bristande motivation. För att undersöka vilken typ av ledarstil arbetstagare uppskattar mest använde sig denna studie av en experimentell design. Total deltog 76 personer i denna studie och eftersom den enda f
The aim of this thesis was to explore the experience of and reasoning about social pressure to which senior citizens have been subjected to during the covid-19 pandemic. Our research consisted of eight semistructured interviews with pensioners over the age of 65, which reflect our qualitative approach. The theoretical framework of the analysis was Scott & Lyman's (1968) theory of accounts,
To be able to automatically segment cells in microscopic images would give biologist a new tool to gather crucial data in quantities not possible by manual work. This is however not a trivial problem and has proven to be very difficult, especially if the images are in 3D. One of the major challenges is the ability for the methods to generalize beyond the data it has previously been presented with.
