Filetype
A new palaeoenvironmental record of the post-glacial history of the southern Baltic Sea (~14 ka to present) is presented. During this period, large water level and salinity changes occurred in the Baltic Basin due to opening and closing of connections to the North Atlantic. Previous attempts to establish a detailed chronology for these palaeoenvironmental changes have been conducted mainly in coas
Popular Abstract in Swedish De optiska egenskaperna i våra sjöar och vattendrag förändras kontinuerligt. Näringsrika sjöar blir grumliga genom algblomningar och erosion gör vattnet grumligt av lerpartiklar. De senaste årtiondena vattnet också blivit brunare genom att mer humusämnen läcker från omkringliggande mark. Både grumligt och humöst brunt vatten försämrar fiskens siktförhållande, men det skVisual conditions are changing in several different ways. Some lakes are getting turbid due to eutrophication or erosion while others are getting browner due to brownification. These two types of visual degradation results in completely different optical properties of lakes. Turbid water scatter light which degrades image quality severely while brown coloured humic water mainly absorb light making
Plant breeding is largely depending on the repeated selection for desirable traits. This process is both time and labour consuming, making the development of commercial plant varieties a slow and costly activity. By the use of molecular markers, analysis of the genetic constitution of plants can be performed at an early stage, providing a possibility to decrease the time and cost required for sele
Recent statistics and terror events testify an increased vulnerability of distribution networks. Antagonistic threats as theft, counterfeiting, contamination and terror are burdening supply chains with unexpected costs in form of lost cargo, production downtimes, lower customer satisfaction, and higher transportation costs. Society is also worried about the possibility for terrorists to exploit su
The work presented in this thesis can be divided into the three following fields of investigation: First of all the ionization model developed in this thesis is meant to simulate the thermal ionization process or the so-called second peak. Equilibrium assumptions have been adopted for the modeling of the thermal ionization, in which Saha’s equation was derived for singly ionized molecules. The inv
Popular Abstract in Swedish Denna skrift behandlar marklagring av värme, kyla och kärnavfall.
Ett koordinerat samarbete och tydlig kommunikation utgör grunden för en välfungerande projektering av ett byggprojekt. I det traditionella tillvägagångssättet utförs arbetet sekventiellt, där projektet passerar mellan de inblandade parterna i turordning. Detta linjära arbetsflöde leder ofta till fragmentering av projektdata och svårigheter att bibehålla en gemensam förståelse mellan inblandade parA coordinated collaboration and clear communication forms the foundation for a well-functioning construction project. In the traditional approach, the work is carried out sequentially, where the project is passed on from one involved party to the next. This linear work flow often leads to fragmentation of work data and difficulties in maintaining a common understanding of the project, which in tur
The objective was to clarify whether and how it is possible to detect, track and identify with an EO/IR (electro optical/infrared) sensor. Moreover, the sight of robotic system 90 was tested in order to clarify the possibilities of using it as a sensor. The sight has a field of view of 3x4° with the TV camera and 4x6° with the IRV camera. Therefore, the project focused on a moving sensor, in order
Genetic engineering of molds to produce new pharmaceutical compounds In this master’s thesis project, I investigated natural chemicals produced by fungi which are interesting for the pharmaceutical industry. Fungi are a very large family of organisms that we are still working to understand, and we continue to discover many new species every year. Living by growing on food sources and secreting en
Rooks hoarding in the spring Rooks are among the species of birds that hoard food for the winter. During autumn the rooks gather nuts, mainly walnuts and acorns, that they hide in caches. Hoarding starts in September and peaks in October. Some hoarding may also occur in November. Rooks are scatter hoarders, which means that they hide their nuts in many small caches, usually containing a single nu
Frågor om brottslighet står högst upp på agendan bland Sveriges politiker och tidningsrubriker avlöser varandra med nyheter om de kriminella gängen och skjutvapenvåldet. Uppfattningen är att brottsligheten går ner i åldrarna, blir grövre och att kriminella gäng rekryterar unga personer för att utföra allvarliga brott. Det är enkelt att få intrycket att vi befinner oss i en tid av ökad brottslig-heQuestions about crime are at the top of the agenda among Sweden's politicians and news about the criminal gangs and gun violence dominate headlines. The perception is that crime decreases with age, becomes more serious and that criminal gangs recruit young people to commit serious crimes. It is easy to get the impression that we are in a time of increased crime and deadly violence. In recent y
Under de senaste åren har trångboddheten minskat i de europeiska länderna, men i Sverige har trångboddheten istället ökat, framförallt i storstäderna. Det finns ett stående problem i det svenska samhället gällande trångboddhet som måste undersökas vidare, och hur dessa boenden påverkar konstruktionen av byggnaderna de bor i. Idag kan inomhusklimatet simuleras i datorprogram som WUFI Plus och IDA-IIn recent years overcrowding has decreased in European countries, but in Sweden overcrowding has increased, especially in the big cities. There is an ongoing problem in Swedish society regarding overcrowding that needs to be further investigated, and how these accommodations affect the design of the buildings they live in. Today, the indoor climate can be simulated in computer programmes such as W
The processes of meltwater storage in firn and the impact of refreezing on firn-coveredglaciers have been investigated on the Greenland ice-sheet. On Svalbard, climate changepromotes the disappearance of firn on glaciers. This thesis project aims to monitor theheat exchanges between the snowpack and the ice surface on a non firn-covered glacier,on Foxfonna, Spitzbergen, Svalbard, and to draw the p
Popular Abstract in Swedish Solenergi kommer att vara en av de viktigaste miljövänliga energikällorna i framtiden, vilket innebär ökat antal solpaneler (för el och värme) som integreras i våra hus men också som fristående produktionsanläggningar. När man planerar framtida hus och stadsdelar är det viktigt att skapa de bästa förutsättningarna för solenergi eftersom hus och stadsdelar finns kvar i fEnergy use in buildings accounts for a significant proportion of the total energy use in many countries. While past and current buildings have solely been energy consumers, future buildings will, besides using less energy, also need to produce (part of ) the required energy on site with renewables. Solar energy is generally very suitable for producing this on-site renewable energy. Although solar
Background: FTV Capital is a private equity company specializing in growth equity. Even though the company has been very successful, the private equity industry is highly competitive and more and more companies are turning their strategy towards growth equity. To stand out and keep the competitive advantage, having a strong brand and communicating efficiently is particularly important for a privat
Background: Transient ischemic attacks (TIA) indicate an increased risk of stroke, one of the leading causes of death and disability worldwide. In order to prevent stroke, our knowledge of diagnosis, demographics, risk factors, investigations, and treatment of patients with TIA needs to be improved.Aims: The aims of this thesis were to validate data and diagnoses in the Riksstroke TIA module (Riks
Forskningen i denna avhandling handlar i hög grad om att försöka härma kemin i jordens atmosfär. Den sista mätningen till denna avhandling gjordes för bara några veckor sedan, under ett fruktmellanmål tillsammans med mina barn. Jag bestämde mig för att testa ett otroligt påstående som säger att om jorden krymptes ihop till ett äpple är atmosfären lika tunn som äpplets skal. D.v.s.:tjocklek(äppleskApart from gases, the air we breath consist of tiny, so called, aerosol particles. A cubic metre of air in a relatively clean environment can consist of several billion aerosol particles. The impact of these particles on human health and on climate is significant. According to WHO, particles affect more humans than any other pollutant, and is closely related to mortality and morbidity. Further, it
Over the last few decades, DNA sequencing has developed from costing billions of dollars to get the complete sequence of the human genome, to being a routine procedure performed in labs all around the world. This has transformed the field of experimental biology since measurements can be done at a level of detail that was not possible before. Still, the relationship between genotype and low-level
The thesis work concerns development and application of four versatile nonlinear optical techniques, based on exploiting ultrashort laser pulses, for diagnostic purposes in gases and flames. The four techniques, all laser-based, are two-photon laser-induced fluorescence (TPLIF), hybrid femtosecond/nanosecond (fs/ns) rotational coherent anti-Stokes Raman scattering (fs/ns RCARS), fs-laser-induced g
Cloud computing has quickly grown to become an essential component in many modern-day software applications. It allows consumers, such as a provider of some web service, to quickly and on demand obtain the necessary computational resources to run their applications. It is desirable for these service providers to keep the running cost of their cloud application low while adhering to various perform
