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Så Räddar Vi den Svenska Sandstäppen På sandiga, torra gräsmarker med hög kalkhalt kan så kallad sandstäpp utvecklas. Det är en unik naturtyp som bara förekommer på ett fåtal platser i Europa. I Sverige finns sandstäppen i östra Skåne och enstaka ytor på Öland. Sandstäppen är mycket artrik med flera sällsynta växter och insekter som är viktiga för att kunna bevara den biologiska mångfalden. Idag

The purpose of this project was to investigate the possibility to create 3D printed implants intended for bone healing studies in small animals at the Biomechanics group at Lund University. The aim was to use cheaper but stable non metallic implants and find out what printers and materials are suitable and accessible today. An Ultimaker 2 was used to produce both nails and screws in Polyhydroxyalk

Denna uppsats handlar om hur sociala medier påverkar anställda och därigenom företaget. Många branscher idag, som till exempel inom servicebranschen, använder sociala medier som verktyg för marknadsföring och för att kommunicera med kunderna. Utöver detta använder en del företag sociala medier internt bland anställda. De sociala strukturerna och miljöerna har tagit nya former med implementeringen This thesis is about how social media in the workplace influences the employees and hence the company. Today many businesses, as the service business, uses social media network sites as a marketing tool and to communicate with the customers. Besides, some companies even use it internally among the employees. The social structures and environments have taken new shapes with the implementation of Fa

A novel method for the fabrication of a light-weight solid oxide fuel cell (SOFC) has been evaluated at Catator. This was conducted in order to lower the weight and thus cost of an unmanned aerial vehicle. The main aim for this thesis was to achieve a thin, dense and crack-free electrolyte using a ceramic fibre paper as substrate. This paper was impregnated with colloidal solutions and pressed to

Det är fascinerande att fundera över hur den antika människan förstod kroppen och i synnerhet kopplingen mellan känslor och kroppen. I syfte att förstå det bättre har jag i den här uppsatsen studerat hur Vergilius använder medicinska, fysiologiska eller anatomiska termer för att beskriva känslor och psykologiska tillstånd. Jag har också studerat vad som är den metaforiska betydelsen av dessa begreIt is fascinating to think on how antiquity pictured the human body and especially the connection between the mind and body. To better understand this I have studied how Virgil uses medical, anatomical, and physiological terminology to describe feelings and psychological phenomena. Furher, I have studied the metaphoric value of this terminology and sought for explanations in differences between Vi

Sjuksköterskeyrket är ett mångfacetterat arbete som kräver och stimulerar till livslångt lärande. Vården som bedrivs idag är i ständig, pågående förändring med nya behandlingar, högteknologiska tekniker och ett arbete i komplexa vårdmiljöer. Ett kontinuerligt lärande är väsentligt för att upprätthålla kompetensen. Syftet med litteraturstudien var att belysa faktorer som påverkar sjuksköterskans lä

Functional food (FF) is a relatively new sector in the food industry. FF are products that have an added nutritional value for consumers that is communicated through nutritional and health claims, and act as preventive agents of chronic diseases. Innovation of new FF products has grown to become an important impact in research towards preventing welfare diseases. The rate of innovation in this fie

I denna studie undersöker jag hur några studerande inom miljövetenskap, hanterar den problematik som råder mellan att försöka vara miljövänlig och upplevelser av de krav och begränsningar som innebär att leva i ett konsumtionsinriktat samhälle. Intresset ligger i att skapa en förståelse för hur denna problematik uppfattas av intervjupersonerna på en individnivå. Med hjälp av intervjuer undersöks d

The Vision Zero was initiated in 1997 with the aim that no loss of life or seriously injured are acceptable in the transportation system. To improve the traffic safety the National road administration in Sweden, Trafikverket, has defined two areas with considerable potential to change the traffic safety situation and reduce number of people killed in traffic. These are lower “average speed” and hi

With estuarine bacterioplankton as a key player in the nutrient cycle and the amount of DOC transported to sea increasing, it is important to gain a better understanding of how the processes within the catchment and estuary control the degradation of DOC by bacterial communities. Future climate change scenarios add a new dimension to this question, with predicted precipitation increases translatin

Background For a long time, Axis has mainly focused on network cameras. But lately Axis is turning its focus towards a different kind of approach, looking more at the customers and their needs, which has given end-to-end solutions and customer segments increased attention in different departments within Axis. A sustainable portion of Axis’ offering is its accessories, but this branch of products h

Bakgrund: Den industriella eran har kommit till sitt slut och med en ny epok kommer nya förändringar. Nya generationer växer upp i en allt mer digitaliserad värld och deras digitala kunskap, tillförlitlighet och sätt att leva påverkar hur vi kommer att arbeta och leva i framtiden. Digitalisering håller på att skriva om spelreglerna för hela branscher och organisationer. Företag med ledare som välj

Felaktiga mätresultat vid användning av pulsoximeter under patientövervakning En felaktig diagnos är ju inget kul att få av sin läkare. I sjukhusmiljö samt kliniska omgivningar eller under akuttransport kan pulsoximetern, som bland annat mäter syremättnaden i blodet via fingret, ge felaktiga mätresultat på grund av frivilliga eller ofrivilliga rörelser hos patienten. Under de senaste åren har bioThe aim of this thesis was to investigate methods for artifact removal in PPG signals and to implement and evaluate a few existing algorithms claiming that the amplitude information is recovered when removing motion artifacts from photoplethysmographic signals (PPG) captured from pulse oximeters. We developed a new proposed method that uses a two-stage based approach with singular value decomposit

This paper seeks to develop an understanding of how configurations of masculinity were shaped and represented by the Swedish Ballet in the 1920s through the use of a symbolic language of signs. With in-depth analysis of storylines, roles and scenography I aim to show how certain symbols, signs and metaphors where tied together to display masculinity. Further, by applying theory on space/place, thi

Massive MIMO has attracted many researchers’ attention as it is a promising technology for future 5G communication systems. To characterize the propagation channels of the massive MIMO and to evaluate system performance, it is important to develop an accurate channel model for it. In this thesis, two correlative models, i.e., the Kronecker model and the Weichselberger model, and a cluster-based m

In this thesis two methods are investigated to solve a multi-objective optimization problem for voyage planning. The first method, grid search, is a brute force search in a three-dimensional graph while the other uses the Lipschitzian algorithm DIRECT to do a continuous search along a nominal route. The grid search method gives a computation time of 7.6 minutes for a route from Gothenburg to New

How tight junctions are affected in a Multiple Sclerosis model In Multiple Sclerosis (MS), unusual immune cells of unknown origin, which are supposed to protect us from infections, attack the central nervous system (CNS). Their main target is the myelin shield surrounding neuronal axons, which is essential for proper transmission of neuronal signals. These autoreactive cells can enter the CNS thr

Models of physical systems are often expressed as a system of mathematical expressions derived from first principles. However some of the relationships present in a model are more conveniently expressed as a table, i.e. for certain values of independent variables the values of dependent variables are known. This imposes a limitation on the optimization software to be used, since optimization softw

We describe the Fourier-Gauss-Laguerre and Fourier cosine series method and test them extensively in four models: Black- Scholes, Black-Scholes with discrete dividends, Heston and Bates. While both methods mostly achieve good accuracy and high computational speed, problems may arise with respect to the optimal choice of the method-specific parameters and the extension of the methods to other model