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When light is used to study structures, the wavelength limits the size of the details that can be resolved. Visible light can be used to investigate structures as small as a micrometre in size. To study smaller structures a shorter wavelength is required. The wavelength of hard X-ray radiation is much shorter than that of visible light, and is comparable to the distance between atoms in solids and

What is Church archaeology today, and what would we like it to be tomorrow? The occasion of the 90-year birthday of professor emeritus Erik Cinthio has afforded me the opportunity to reflect upon these two questions. Departure is taken in the 19th century, when medieval churches first became a topic of interest for researchers and architects. Church archaeology developed as a sub-discipline of art

Accelerator based lightsources are one of the most powerful tools today for producing high intensity radiation at very short wavelengths. While synchrotron storage rings provide a high average brilliance in a wide wavelength range, the next generation of lightsources aim towards producing ultra-short pulses in the X-ray regime. A very promising technique implemented or proposed at many accelerat

Popular Abstract in Swedish I denna avhandling presenteras olika studier om röstimitation. Det unika i den individuella rösten och om det är möjligt att förändra sin röst så att man blir till förväxling lik någon annan vad gäller rösten och talet diskuteras. Syftet med studierna var i första hand att ta reda på hur och i vilken omfattning en imitatör förändrar sin egen röst och sitt tal för att blThis thesis is about voice imitations, more specifically impersonation. Questions are raised about the uniqueness of a person’s voice and speech behaviour and if it is possible to get close to another speaker’s voice and speech. Four main research questions are investigated in different studies. The studies focus mainly on how close the imitation is to the target speaker, and addresses to a lesser

This article aims to highlight how literary value is constructed today: how it is created and negotiated. It seeks to develop a perspective that considers the manifold and complex value­negotiation process. In accordance with Barbara Herrnstein Smith, the article argues that literary value is generated by a constant and continuous series of negotiations between production and sale: the institution

Objective: Several international guidelines concerning the treatment of acute pancreatitis has been published during the last decades. However, Scandinavian guidelines are still lacking. The aim of the present study is to identify current treatment strategies for acute pancreatitis in Sweden and to evaluate if there is a need for improvement and the role of guidelines. Material and methods: A qu

Background: Hallux rigidus (HR) affects the first metatarsophalangeal joint and is the most common osteoarthritic condition in the foot. The most used surgical treatment for severe cases of HR is an arthrodesis. The aim of this study is to describe patient characteristics, surgical treatment and the patient-reported outcomes for patients treated with arthrodesis for HR using data from Swefoot, the

Communication between cells located in different parts of an organism is often mediated by membrane-enveloped nanoparticles, such as extracellular vesicles (EVs). EV binding and cell uptake mechanisms depend on the heterogeneous composition of the EV membrane. From a colloidal perspective, the EV membrane interacts with other biological interfaces via both specific and non-specific interactions, w

Background: Orthostatic hypotension (OH) has been associated with elevated risk of cardiovascular diseases (CVDs) and dementia risk. To better understand the OH-dementia association, we assessed the associations of OH with CVD and subsequent dementia in older adults and considered the temporality of CVD and dementia onset. Methods: This 15-year population-based cohort study included, at baseline,