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Explaining the maintenance of genetic variation in fitness-related traits within populations is a fundamental challenge in ecology and evolutionary biology. Frequency-dependent selection (FDS) is one mechanism that can maintain such variation, especially when selection favours rare variants (negative FDS). However, our general knowledge about the occurrence of FDS, its strength and direction remai
This is an undeniable fact now that wireless systems pervade all aspects of our lives. These systems are evolving at a rapid clip, connecting more people and devices every single day that goes by. This growth is further fueled by the users’ insatiable appetite for more traffic, be it for online gaming, watching high-fidelity video, downloading huge files, live- streaming and many more uses. With t
Magnetomotive Ultrasound, MMUS, is an imaging modality used to reveal a magnetic contrast agent using an external time-varying inhomogeneous magnetic field. By this, the particles are set in motion, and the motion is detected with ultrasound. The technique has applications in cancer detection but is limited in penetration as the magnetic field decreases rapidly with distance. Instead of increasing
A major development in international schools since the first decade of the 21st century is the growth of global firms operating revenue-oriented schools. Whereas international schools were once community organizations serving the needs of expatriate communities, the landscape has been transformed into an education industry. Transnational corporations and revenue-oriented nonprofits have acquired s
Background: Many children undergo various surgeries, which often lead to acute postoperative pain. This pain influences recovery and quality of life. Non-steroidal anti-inflammatory drugs (NSAIDs), specifically cyclo-oxygenase (COX) inhibitors such as diclofenac, can be used to treat pain and reduce inflammation. There is uncertainty regarding diclofenac's benefits and harms compared to placebo or
A new efficient synthesis method of angular selective surfaces (ASSs) based on the accurate equivalent circuit model is proposed. The angular dispersion of different components under oblique incidence is modeled by virtual lumped elements in the angular domain. The processes of obtaining the equivalent circuit for substrates, electrically small grids and patch arrays are presented in detail. The s
Twenty years have passed since the Brundtland report launched the goal of “sustainable development” (SD). During these decades SD has become widely accepted and it is today established as a fundamental goal in most policy contexts at the international level as well in many countries, regions and cities. A growing research community focussing on various aspects of sustainable development has develo
The effects of dryer fabric cooling were studied. Using a dryer fabric cooled to a temperature below the dew point of the air-vapour mixture resulted in condensation of water vapour in the fabric structure. This condensation process was studied by means of a small-scale dynamic pilot dryer. The novel model on mass and heat transport in dryer fabrics, described in part 1, was validated against expe
The cysteine proteases are enzymes found in every kingdom of life. Clan CA is the largest of the cysteine protease clans, with members all displaying a Cys/His/Asn(Asp) catalytic triad responsible for hydrolysing the peptide bond within the substrate. To regulate the activity of the proteases, another group of proteins act as natural inhibitors (cysteine protease inhibitors) and bind to the protea
We are living in a highly dynamic, human-dominated Earth System in which non-linear, abrupt and irreversible changes are not only possible but also probable. These changes require institutional structures capable of steering human society away from critical tipping points and irreversible change and ensuring sustainable livelihoods for all. We see 2012 as a charter moment, a historic opportunity t
P>Aims Impaired sensory function in the sole of the foot in diabetic patients is a substantial problem caused by unknown mechanisms. Hand or foot sensibility can be improved by cutaneous anaesthesia of the forearm or lower leg, respectively, in healthy subjects. Hypothetically, cutaneous anaesthesia induces a silent area in the primary somatosensory cortex, allowing adjacent cortical areas to expa
Conversion and Confession – Religious Transitions similar to Conversion in Henric Schartau and F. G. Hedberg, related to a Second Confessional Age The nineteenth century has often been called an Age of Secularisation. This has been criticized as blindness of religion. The »long» nineteenth century meant a mobilization of religion. German Historian Olaf Blaschke has interpreted the period as a sec
The topic of this thesis is inspired by an experiment in which a vessel, laying a submarine cable, was provided with forecasts overlaid with satellite observations of significant wave height. During the operation, the vessel was close to an adverse weather area and the personnel on board could confirm that the forecast was not as close to the "ground truth" as the satellite observation was.
Sensor based control systems increase flexibility and autonomy in robotics. One of the most common applications in robotics is welding, which is often limited to objects with fine tolerances. To be able to manage objects with relatively large tolerances, such as ship-hulls, sensor guided control systems have to be incorporated that are able to handle large deviations from the drawings. To be able
This Master’s thesis in library and information science deals with the development of Länkskafferiet, a SBIG created in 1994 by NetLab of the University Library of Lund. Länkskafferiet maintains a selection of quality controlled Internet links for the use of Swedish school children. We have had access to archives and files from the start of Länkskafferiet in 1994 to 2005 and have also interviewed
Purpose: This study investigates how the Chinese government generates authority during a crisis through discursive practices expressed in social media. Design/methodology/approach: Using the theoretical framework of authority and the method of genre analysis, this study examined the top 100 forwarded posts on Weibo about a highprofile murder to determine the mechanisms involved in generating autho
The aim of the research presented in this exploratory paper is to present the sustainability priorities and measures focused on by craft beer SMEs and to highlight a number of innovative measures pursued by brewers to promote sustainability. The materials and methods for the study included an Internet survey of craft breweries with a sustainability profile, followed by an in-depth analysis of 70 s
