Search results

Elektromagnetiska vågor, även kända som radiovågor, är vågor som sprider sig med låga frekvenser från 3 till 30 kHz. Dessa lågfrekventa vågor används vanligtvis när man önskar kommunicera med ubåtar. De kan emellertid också användas på land för att mäta skillnader i jord– och bergarters elektriska konduktivitet. Denna mätteknik kallas Very-Low-Frequency Electromagnetics (VLF-EM) och har framgångsrElectromagnetic waves, also known as radio waves, which propagate at low frequencies of only 3 kHz to 30 kHz, are usually used for communication with submarines. However, these waves can also be used on land to measure differences in the electrical conductivity of the subsurface. This technique is called Very-Low-Frequency Electromagnetics (VLF-EM) and has been successfully used to gain an insight

To develop treatments for currently uncurable neurological disorders, more knowledge is needed of the involved neural circuits and changes in gene expression. The padlock probe technique, in which linear DNA probes are circularized and amplified when hybridized to their cDNA target sequence, has previously been used for both multiplexed gene detection and neuronal projection mapping in brain tissu

Denna studie utvärderar och jämför fyra grönatakmetoder med syftet att beräkna hur många gröna tak som potentiellt kan byggas på redan befintliga byggnader i en stad. Metoderna är skapade för städerna Braunschweig, Thessaloniki, Lissabon och Lund. Alla metoder använder huvudsakligen Geografiska informationssystem och fjärranalys som verktyg. För att besvara forskningsfrågorna har en litteraturstudThis study evaluates and compares four green roof methods with the purpose to calculate how many green roofs that potentially can be built on already existing buildings in a city. The methods are created for the cities Braunschweig, Thessaloniki, Lisbon and Lund. All of the methods mainly use Geospatial Information Systems and remote sensing analysis as tools. In order to answer the research quest

En kvantitativ jämförelse av syntetiska mammogram med bilder från vanlig mammografi Bröstcancer är den vanligaste typen av cancer hos kvinnor i Sverige. Ca 7000 kvinnor i Sverige drabbas av bröstcancer varje år och 1400 av dem dör. I Sverige erbjuds kvinnor mellan 40 och 74 år screening för att upptäcka bröstcancer i ett tidigt stadie. Screening görs med mammografi och ger en två-dimensionell (2DBreast cancer is the most common cancer among women in Sweden. To be able to treat the disease it is important that it is detected at an early stage. In Sweden, women between 40 and 74 years are regularly offered screening with mammography to detect abnormalities in their breasts. The mammograms give the radiologist a good image of the breasts’ appearances, but it is difficult to detect structures

Kollektivtrafiken är viktig i samtliga större städer i Sverige. Att resa hållbart är ett sätt att bidra till en god livsmiljö. Därför satsas det en hel del på att effektivisera och tillgängliggöra kollektivtrafiken. Syftet med detta arbete är att undersöka om utbudet utgör en central faktor till att en stad lyckas med stadstrafikresande bättre än en annan stad med liknade befolkning. I den här stuPublic transport is an important part of transport in all cities in Sweden. Travelling sustainably is a way of contributing to a sustainable environment. Therefore many investments have been made to make public transport available and more effective. The purpose of this study is to investigate whether the supply is a key factor to success of public transport in a city compared with another city wi

Syftet med studien var att undersöka psykisk hälsa hos tonåringar och unga vuxna vars syskon har tvångssyndrom. Frågeställningen gällde om det förelåg skillnad i den självskattade psykiska hälsan mellan dem som har ett syskon med tvångssyndrom och en kontrollgrupp. Därutöver undersökte studien om psykisk hälsa påverkas av kunskap om tvångssyndrom, syskonrelationens kvalitet, belastning och anpassnThe aim of this study was to examine mental health among teenagers and adolescents who have siblings with Obsessive Compulsive Disorder (OCD). The research question investigated if there was a difference in the self-assessed mental health between those who have a sibling with OCD and a control group. In addition to this the study examined if mental health is affected by knowledge about OCD, the qu

Denna studie utvärderar och jämför fyra grönatakmetoder med syftet att beräkna hur många gröna tak som potentiellt kan byggas på redan befintliga byggnader i en stad. Metoderna rör städerna Braunschweig, Thessaloniki, Lissabon och Lund. Geografiska informationssystem och fjärranalys används som verktyg i alla metoderna. Vidare observerar denna studie de kriterier som valts ut i metoderna och underThis study evaluates and compares four green roof methods with the purpose to calculate how many green roofs that potentially can be built on already existing buildings in a city. The methods concern the cities Braunschweig, Thessaloniki, Lisbon, and Lund. Geospatial Information Systems and remote sensing analysis are used as tools in all of the methods. Furthermore, this study observes the criter

Shifting between living places has become a common routine for many people all over the world. On the other hand, some people like students and commuting workers move only temporary, where the feeling of home and simplicity of moving to a new place might be challenged. The starting-point for this project was to investigate if objects can make it easier to move from place to place both emotion

Localization of muscle motor units (MU) using surface electromyography (sEMG) is of interest in areas including neurology, rehabilitation and prosthetic control. The aim of the thesis is to describe a method for MU localization using high-density sEMG (HDsEMG) and verify the method using simultaneous intramuscular EMG (iEMG) recordings. Based on previous work by Roeleveld et al, two conduction mod

Under 1980–90-talet initierades det i Sverige omfattande reformer i den offentliga sektorn med det privata näringslivet som inspiration. En av orsakerna var att man började anse att organisationer i offentlig regi inte var kostnadseffektiva. Reformerna skulle med detta effektivisera de offentliga organisationerna med bl.a. ledarskapsidéer tagna från det privata näringslivet. På senare år har reforThe purpose of this study is to examine whether there has been a change in problem descriptions and solution ideas regarding governance principles in public investigations in Sweden from a discourse institutionalism perspective over the past decade. Furthermore, the aim has also been to try to map out the changes based on notions of professionalism and managerialism. The method is based on Viviens

This paper is a reformulation of Leonard Dickson's complete classification of the finite subgroups of the two-dimensional special linear group over an arbitrary algebraically closed field, SL(2,F). The approach is to construct a class equation of the conjugacy classes of maximal abelian subgroups of an arbitrary finite subgroup of SL(2,F). In turn, this leads to only 10 possible classes of str

Prisutvecklingen på bostäder är något som väcker intresse på nationellt och individuellt plan. Mellan år 2008 och 2018 har kvadratmeterpriset och den genomsnittliga köpeskillingen för bostadsrätter fördubblats. Den expansiva värdeökningen är förenad med risker kopplade till hushållens skuldsättning som ökat i en snabb takt och därmed även ökat den finansiella sårbarheten. Ett alternativt sätt att Few markets are followed with such a great interest as the housing market. The development of house prices is something that intrigues on a national and an individual level, since properties are often seen as the most valuable asset in a household. Prices for co-operative apartments in Sweden have practically doubled in 2018 compared with 2008. The increasing trend in house prices is united with r

The ability of a cell to respond to mechanical cues from its external environment is vital for many important cellular processes including directed cell migration, which drives embryogenesis, wound healing and is also a key factor in many diseases such as fibrosis, atherosclerosis and during cancer metastasis. The primary mechanism by which a cell senses and responds to changing mechanical cues fr

In the present time, the rate of environmental degradation requires us to use all available means to avoid further damage and restore the environment to the best of our possibilities. Education is an important channel to promote environmentalism and sustainability, and to promote pro-environmental individual decisions, especially regarding consumption and purchasing patterns. The case study analys

When making an Integrated Chip, there is a process called contacting or bonding. In this process, the circuit is connected to the capsule. As a result, there is interference between the bond wires through inductive coupling. At higher frequencies, the problem becomes more apparent, which means that the role of frequency in interference should be investigated. By using a bonding machine and making

The outcome of malaria infections in humans and mice, including the symptoms experienced by the host, the clearance of the parasite, and the host survival; is highly dependant on the balance between inflammatory and anti-inflammatory immune mechanisms. Cytokines, which are signalling molecules involved in cell-cell communication, play a central role in such balance. Given the limited knowledge abo

Asfaltsbruk har stor påverkan på asfaltens egenskaper. Under senare tid har många stu- dier genomförts med syfte att utreda hur asfaltsbruk kan modifieras f ̈or att förbättra egenskaperna hos den slutgiltiga asfaltskroppen. Användandet av tillsatser vid as- falttillverkning används idag i stor utsträckning, varför det är intressant att utreda huruvida tillsatserna bidrar till efterfrågade egenskapAsphalt mastic has a major impact on the properties of asphalt. In recent years, many studies have been conducted to investigate how asphalt mastic can be modified to improve the properties of the final asphalt mixture. In this study, two commonly used additives, cellulose fibers and polymer modifiedbitumen of the SBS type (styrene- butadiene-styrene) were evaluated. The evaluation was done by swe

Entreprenader omsätter inte sällan stora mängder pengar, och pågår ofta över långa perioder. På grund av detta är det av särskild vikt att förstå vilka arbeten som omfattas av det ursprungliga kontraktet, och vilka som ska anses vara arbeten som entreprenören inte borde ha förutsett vid sin beräkning av anbudet. Vid sin anbudsberäkning utgår entreprenören ifrån det förfrågningsunderlag som beställConstruction contracts often involve large amounts of money and require that commitments are made over large periods of time. Because of this it is important to understand what work is covered by the initial contract, and what work is not covered since the contractor should not have foreseen such work when calculating its tender. The contractor uses the tender documents which the client has provid

Med modern teknik inom artificiell intelligens (AI) kan datorprogram lära sig spela spel genom att öva. I mitt examensarbete lär sig ett datorprogram spela luffarschack (5-i-rad) genom att spela 200 000 partier mot sig själv. I början spelar programmet helt slumpmässigt, men till slut är det väldigt svårslaget. Brädspel har en lång historia inom AI-forskningen. De är med sin unika kombination avTemporal difference learning is considered one of the most successful methods in reinforcement learning. Recent developments in deep learning have opened up a new world of opportunities. In this project, we compare classic scalar temporal difference learning with three new distributional algorithms for playing the game of 5-in-a-row using deep neural networks: distributional temporal difference le