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The Baltic Sea is one of the largest brackish water bodies in the world and is suffering extensive environmental issues caused by eutrophication and warming climate. A halocline in the water column divides more saline bottom water fed by inflows through the narrow connection with the North Sea from the surface waters and inhibiting exchange of oxygen between the two water masses. With the nutrient

Meniscus tears are common after knee injuries. The current treatment in patients under the age of 40 is typically arthroscopic partial meniscectomy (APM) or arthroscopic meniscus repair. Meniscus tears and surgeries are associated with an accelerated progression to knee osteoarthritis (OA) and disability. PAPER I is an observational cohort study, utilising the Skåne Healthcare Register (SHR) to id

An outpouring of scholarly editions: Media history perspectives on the editing of historical sources in Sweden, 1834–1847This article examines the scholarly editing of historical sources for publication in nineteenth-century Sweden. The analysis focuses on the approximately 500 letters exchanged between Hans Järta, the Director General of the National Archives of Sweden, and Bror Emil Hildebrand,

This thesis focuses on the magnetotransport properties of highly Mn-doped crystalline GaAs nanowires. The GaAs nanowires were first grown by metal-organic vapor phase epitaxy from gold seed particles, and subsequently implanted with Mn ions under varying conditions, e.g., ion fluence and acceleration voltage. The implantation process was carefully analyzed and optimized within the research project

Nanowires constitute one of the fundamental building blocks in assembled nanodevices. Due to the high surface to volume ratio, the fraction of surface atoms is not negligible for nanosized elements. Because of the reduced coordination of surface atoms, the physical properties deviate from those of the bulk, which influences the overall physical properties of nanostructures. Consequently, this prov

This thesis is a theoretical investigation of the effects of spin-orbit (SO) interactions in ferromagnetic metal nano-particles. Part I of the thesis is devoted to an elementary introduction of the research field, including recent experimental advances which partly motivated the work presented here. At the core of the thesis lie four original papers, collected in Part II, which are presented and s

The immune system has several strategies to combat infections. The present study investigates various aspects of the interaction between Gram negative bacteria, particularly Salmonella, and antigen presenting cells (APC). Salmonella is an intracellular bacterium infecting mice and man. Salmonella typhimurium infection in mice is a frequently used model for studying systemic Salmonella infection. O

Automotive seating has been under continous development since it was described for the first time in 1885. At that time one could read about a “padded leather bench seat sitting on springs mounted directly to the frame of a horse-less carriage”. With the development of flexible polyurethane foam in 1950-1960 the seats were considerably improved and the traditional springs were eventually replaced

Abstract Fat bloom on chocolate is a major problem for the confectionery industry since the unappetising appearance and negative sensory effects lead to rejection by customers. The presence of fat bloom on chocolate confectionery systems is usually connected to migration of liquid fat due to the difference in composition between filling triacylglycerols (TAGs) and cocoa butter TAGs. The filling T

An important indicator of the metabolic capacity of humans is the ability to regulate plasma triacylglycerol levels and to clear triacylglycerol-rich lipoproteins (TRLs) from the circulation after a meal. This is crucial since most of the day is spent in the postprandial state. High concentrations and long circulation times of TRL remnants may be detrimental since these are considered to be highly

In this thesis I have investigated the effects of pesticide exposure on the ecosystem level using various types of experimental ecosystems, i.e. microcosms. The direct effect of exposure to cyperemthrin, a pyretroid insecticide, was a rapid decrease of crustancean zooplankton in enclosures in a lake. In the exposed enclosures the biomass of algae, heterotrophic nanoflagellates, ciliates and bacter

This thesis presents numerical simulations of reacting transport phenomena in polymer electrolyte membrane (PEM) fuel cells. Broadly, the presented work is subdivided into macro and microscale simulations. In macroscale simulations, a unit PEM fuel cell with interdigitated flow field configurations is simulated keeping in mind all the essential transport mechanisms, i.e., transport of species, ion

Syftet med uppsatsen är att studera begreppet existentiell hälsa ur ett antropologiskt, teoretiskt och genealogiskt perspektiv. Hur förstås och används begreppet i den svenska kontexten, i till exempel tidningar, studiegrupper etc. Uppsatsen innehåller dessutom en begränsad intervjustudie om hur några individer i olika åldrar, situationer och med olika utbildningar förstår begreppet existentiell h

Kriminalpolitiken och det stigande gängvåldet var bland de mest diskuterade frågorna inför valet 2022 i Sverige. I syfte att lösa dessa problem sökte politiker och media vägledning i den danska lagstiftningen. Efter valet ingicks Tidöavtalet, en partiöverskridande överenskommelse i syfte att bilda regeringsunderlag. I avtalet föreslogs en kriminalisering av deltagande i kriminella gäng. Uppsatsen

https://www.astro.lu.se/meridian-s03e02 - 2026-04-19

Stroke is a major cause of death and disability around the world. Stroke leads to loss of neurons and also other cells in the brain due to lack of blood supply. Currently no therapies are available to treat stroke-related disability. It has been shown that stroke leads to increased neurogenesis, birth of new neurons, within the brain. This increased neurogenesis is not sufficient to restore lost f

Pharmaceutical tablets and pellets are often covered with a coating. There is a need for methods that enable monitoring of the growth of such films during processing. Such analyses can be performed using process analytical chemical methods based on near infrared (NIR) diffuse reflectance spectrometry. It provides with analyses that take only ca. 8 seconds in total analysis time, including physical