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The N-body problem has been studied for many centuries and is still of interest in contemporary science. A lot of effort has gone into solving this problem but it's unlikely that a general solution will be found with the mathematical tools we have today. We review some of the progress that has been made over the centuries in solving it. We take a look at the first integrals, existence of solut
The Rome Statute of the International Criminal Court (Rome Statute) was signed 17 July 1998. It will be a permanent court that will have jurisdiction over crimes in potentially all States. The defendants will not be States, but individuals. Among the four crimes listed in Rome Statute the crime of aggression was the most contentious. The issue of aggression and efforts to deter the use of force ha
Energy harvesting, from ambient vibrations, can be a very effective method for solving the problem with powering electronics were the need for constant power or regular battery replacements is a trouble or an inconvenience. But, since all energy harvesters, using mechanical vibrations, need to operate in resonance in order to generate maximal electrical output, and ambient vibrations usually do no
There is a common notion that economic freedom has a positive effect on economic development. However, despite formal institutions considered beneficial for economic freedom being increasingly recognised there persists large differences in economic development across the globe. A possible explanation can be found within the framework of informal institutions. Economic freedom being a transmission
Title: Synergi, a digital reporting tool for working environment. Authors: Sebastian Larsson & Joel Ståhl Supervisor: Radhlinah Aulin, Senior lecturer at the Department of Building and Environmental Technology, Division of Construction Management, Lund University. Examinator: Anne Landin, Professor at the Department of Building and Environmental Technology, Division of Construction Management,
Due to high usage of fossil fuels the emissions of greenhouse gases has increased to dangerous levels during the last century. Something is needed to be done soon in order to reduce emissions and stabilize the climate. The transportation sector stands for a large part of these emissions and one way to reduce these could be to instead use electric vehicles. Unfortunately, today batteries limit the
Transition metal complexes can activate otherwise unreactive C-H bonds to form C-C bonds, which is of great use for the synthetic chemist. One type of organometallic framework that has gained fame in the last decade is the pincer complex because of its stability, and how easily its steric and electronic properties can be altered. Palladium is one of the transition metals commonly used in pincer co
Cell handling is an important aspect of biomedical research, as an accurate cell media composition and cell viability is paramount for successful studies. Specifically cell washing, the replacement of the liquid media in which the cells are dispersed with another liquid media, has been studied in this thesis. An acoustofluidic device called the AcouWash, by AcouSort AB, which utilizes the combinat
‘Smiling in your brother’s face is an act of charity’; said prophet Muhammad (ALLAH’s peace and blessings be with him). Amelogenin (Amg) is one of the most important proteins that are responsible for perfect tooth formation giving us that beautiful smile. Amelogenin has multifunctional characteristics like wound healing, cells proliferation induction, anti-inflammatory, anti-infectious and signal
Hadfield steel, which is a high-manganese steel alloy, is commonly used as liner for various types of rock crushers. It is used in this application due to its high toughness in combination with its high work hardening ability. Toughness is important for resisting the high impact from rocks during processing. However, the high stress gauging abrasive wear is still significant. This can lead to prod
Med sin ökade tillgänglighet på den kommersiella marknaden har eye-tracking blivit ett allmänt tillgängligt system för att analysera ögonrörelser. Detta har öppnat upp för nya möjligheter för utvärdering av usability inom humancomputer interaction, som tidigare har varit dyrt, tidskrävande och ofta utfört baserat på dåligt dokumenterade standarder och mål. Tidigare forskning har visat att eye-tracWith its increased availability on the commercial market, eye-tracking has become a widely accessible system for analysing eye-movements. This has opened up new possibilities in evaluation of usability in human-computer interaction, which has had a history of being expensive, time-consuming and often performed based on poorly documented standards and objectives. Previous research has indicated the
Machine-learning methods have in recent years seen a great deal of use in condensed matter physics. In this thesis we apply such methods, specifically machine-learning with artificial neural networks, to the equilibrium and non-equilibrium description of the Hubbard and Hubbard-Holstein models. In the framework of ground-state density functional theory we reproduce results from the literature rega
Modern cars have a wide range of safety features to ensure that the driving is as safe as possible. One of these safety features is called electronic stability control, often abbreviated as E.S.C. The goal of the E.S.C. is to make sure that the car stays on the road even under dangerous circumstances such as a slippery road or the driver committing mistakes. During this project, a simulation progr
Photosynthetic organisms harvest and convert light energy into chemical energy and utilize it in their metabolism. The light is captured through pigments called chlorophylls and carotenoids, present in the thylakoid membranes inside the chloroplast. In addition to acting as auxiliary light harvesters, the carotenoids also act as antioxidants by 1) preventing the formation of reactive oxygen specie
In this thesis, the mass singularities occurring in the cross-section of electron scattering processes are investigated. Two types of scatterings are studied: Quantum Electrodynamics (QED) scatterings, and Perturbative Quantum Gravity (PQG) scatterings. We show how mass singularities in QED and PQG cancel when real and virtual diagrams are included in the scattering cross-section. We find that in
