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Pelvic fractures may occur together with hip fractures as a result of low energy trauma. It is unclear whether they do require special attention. There are conflicting results in the literature about the prevalence of both concomitant hip and pelvic fractures as well as exclusive pelvic fractures. It has been reported that hip fractures and obturator ring fractures are mutually exclusive. To retro
The growing use of wind energy as major energy source, has led to the construction of large wind farms. The control of such wind farms is typically separated into control at wind turbine level and at wind farm level. The wind farm controller assures that the wind farm produces the demanded amount of power, by providing set-points for the turbines in the farm. The local turbine control assures that
This thesis conducts an in-depth investigation of the conformal two Higgs doublet model (C2HDM) in its most general form, integrating complex couplings λ5, λ6, λ7 and a CPviolating phase e−iδ. This setup enables a detailed exploration of $\mathcal{CP}$-violation and its impact on electroweak phase transitions (EWPT) and gravitational wave (GW) signatures. Using the Higgs basis simplifies tree-le
The commissioning phase is the last phase of a construction project when all subsystems come together to be tested as a whole, working as a single entity. This phase is often the most crucial and time-sensitive part of the project as the construction occupies space in the factory and inflicts down¬time in processes without adding value. Faults found in this phase can be time-consuming to correct a
Possibilities to simulate control systems can be very useful. During the development of a control system, simulations can verify that the implemented algorithms work as expected. Smaller parts of the implementation can be tested before they are put together to a complete control system. In an existing plant simulation can be used for optimization of the control system and control parameters ca
Background and purpose Most studies on high tibial osteotomies (HTOs) have been hospital-based and have included a limited number of patients. We evaluated the use and outcome-expressed as rate of revision to knee arthroplasty-of HTO performed in Sweden with 9 million inhabitants, 1998-2007. Patients and methods 3, 161 HTO procedures on patients 30 years or older (69% men) who were operated on for
Positron emission tomography (PET) with (18)F-FDG is a valuable tool for staging, planning treatment, and evaluating the treatment response for many different types of tumours. The correct volume estimation is of utmost importance in these situations. To date, the most common types of phantoms used in volume quantification in PET utilize fillable, hollow spheres placed in a circular or elliptical
Background: Functional polymorphisms of the solute carrier family 22, member 4 (SLC22A4), runt related transcription factor 1 (RUNX1) and small ubiquitin- like modifier 4 (SUMO4) genes have been shown to be associated with several autoimmune diseases. Objective: To test the possible role of these variants in susceptibility to or severity of systemic lupus erythematosus (SLE), on the basis that com
BACKGROUND: It has previously been shown that propofol in clinically relevant concentrations induces a calcium-dependent conformational change in the cytoskeleton. The aim of this study was to further clarify the effect of propofol on the actin cytoskeleton and to determine if this conformational change is mediated by the interaction between the GABA(A)-receptor and propofol. METHODS: Primary cult
As the identification process is based on the unique patterns of the users, biometrics technologies are expected to provide highly secure authentication systems. The existing systems using fingerprints or retina patterns are, however, very vulnerable. One's fingerprints are accessible as soon as the person touches a surface, while a high resolution camera easily captures the retina pattern. Thus,
De fackliga organisationerna tillhör de viktigaste aktörerna på den svenska arbetsmarknaden. Jämfört med i många andra länder har den svenska fackföreningsrörelsen uppnått mycket av vad man eftersträvat. Det har säkerligen bidragit till att Sverige, tillsammans med Danmark och Finland, har världsrekord i facklig anslutning. Tillsammans med övriga nordiska länder är Sverige vidare unikt genom att d
As the identification process is based on the unique patterns of the users, biometrics technologies are expected to provide highly secure authentication systems. The existing systems using fingerprints or retina patterns are, however, very vulnerable. One’s fingerprints are accessible as soon as the person touches a surface, while a high resolution camera easily captures the retina pattern. Thus,
Popular Abstract in Swedish Biokemi, livets kemi, är den gren av naturvetenskapen som avhandlar de molekyler och kemiska processer som är nödvändiga för allt levandes existens. Genom att karakterisera livets molekyler och deras funktion vill man öka förståelsen kring vad som krävs för att en organism ska kunna leva, växa, fortplanta sig och anpassa sej till nya miljöer och förhållanden. Som biokemAquaporins constitute a class of membrane proteins that create pores through the lipid bilayer of biological membranes, facilitating the passage of water and other small solutes. Nearly all living organisms possess a more or less intricate set up of aquaporin proteins and the importance of these channels has been implicated in many aspects of health and disease. The aim of the projects summarized
Frequency-domain electromagnetic induction (EMI) methods are commonly used to map vast areas quickly and with minimum logistical efforts. Unfortunately, they are often characterized by a very limited number of frequencies and severe ill-posedness. On the other hand, electrical resistivity tomography (ERT) approaches are usually considered more reliable; for example, they do not require specific ca
Metallic nano-antennas are devices used to concentrate the energy in light into regions that are much smaller than the wavelength. These structures are currently used to develop new measurement and printing techniques, such as optical microscopy with sub-wavelength resolution, and high-resolution lithography. Here, we analyze and design a nano-antenna in a two-dimensional setting with the source b
Measurements of heart rate without contact can be of much importance when the possibilities of skin contact for different reasons are limited, or for monitoring at distance over time. This is an emerging area in our time, and the idea to construct a working system to demonstrate the technique was therefore born. The work has been performed at the Department of Biomedical Engineering at LTH. The m
The original task for our final thesis was to solve issues that are connected with exercise on the International Space Station, ISS. Those issues are mainly centered on the conflict between scientific and human needs perfect micro gravity conditions versus the needs to physically challenge the human body. Also psychological matters were central to the project exercise for the sake of science versu
Abstract The purpose of this essay is to study how the state governs the population in Sweden 1809-1870. The period from the “revolutionary” government of 1810 to the 1870's is a period of change in Sweden, when old feudal institutions are put under great pressure from economic and social change. The state changes, its relation to the local society changes, and new methods of power and polit
Saving peak powers in the heating systems have been in focus for some years now. Sweden has more and more cooling systems with an increase in cooling also in residential buildings. The cooling power is much more expensive than the heating power and the cost of cooling is largely driven by installed power. Therefore, there is a relative advantage of reducing the cooling power instead of heating pow
