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The high-order harmonics that are created in the interaction between an intense laser pulse (around 1014 W/cm2) and a gas medium are studied. The high-order harmonic radiation is a relatively new source of coherent radiation in the short wavelength range. The high-order harmonics are interesting for applications because of their good spatial and temporal coherence, their shor
Popular Abstract in Swedish Pelagiska bakterier använder löst organiskt material som kol- och energikälla. Det lösta materialet kan ha sitt ursprung i intern (autokton) eller terrester (allokton) primärproduktion. Den här avhandlingen handlar om hur bakterier använder autoktont och alloktont producerat kol. Dessutom undersöker jag om det finns en koppling mellan kolkällans ursprung och strukturen Organic substrates for pelagic bacteria are derived from dissolved organic carbon (DOC) in the water column that originates either from primary production from within the lake itself (autochthonous), or import of organic matter from the terrestrial watershed (allochthonous production). This thesis addresses the utilization of allochthonous versus autochthonous carbon (C) sources by lake bacteriopl
Measurements and extraction of Q-value and self-resonance frequency of on-chip differential symmetrical inductors have been performed. Both 1-port and 2-port measurements have been carried out. In the 1-port measurements a high frequency broadband 180
Popular Abstract in Swedish Ekologin hos lavdagsvärmaren (Dysauxes ancilla) studerades inom den enda svenska populationen vid Beijershamn på Öland. Populationen utgör en isolerad förekomst på nordgränsen av artens utbredningsområde, som huvudsakligen är mellan- och sydosteuropeiskt. Arten är rödlistad som akut hotad. Resultaten visar att lavdagsvärmaren för närvarande endast förekommer inom ett 4 The ecology of the moth Dysauxes ancilla was studied in the only Swedish breeding area at Beijershamn, situated on the Baltic island of Öland. The population is a northern outpost, separated from the species´ continous distribution area in middle- and southeast Europe. There is a general opinion that there has been a reduction of the species distribution during the last decades, but no studies hav
The interaction between large hydrophobic and hydrophilic surfaces in aqueous solution is investigated, using Metropolis Monte Carlo simulations and density functional theory. Special attention is devoted to the solvation force and its dependence on the nature of the solvent-solvent and solvent-surface interactions. In order to facilitate simulations of surface forces in aqueous systems, methods
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The primary purpose of this study is to evaluate the size of impact that oil price shocks have on the stock market returns. The secondary purpose is to investigate which factors have greater influence on stock market returns in recent conditions in comparison to oil price shocks and to explore systematic effect across several countries.The study is carried out by applying unrestricted Vector Autor
Populärvetenskaplig sammanfattning: Denna studie omfattar undersökningar av skogsskador, vattenflöden och höjdmodeller i Krkonose Nationalpark i norra Tjeckien. Nationalparken är belägen i ett område kallat Europas Svarta Triangel. Detta namn kommer av de kraftiga svaveldioxidutsläppen från stora kolkraftverk i Tyskland, Polen och Tjeckien under de senaste decennierna. Utsläppen har resulterat i eIn the 1970's, a widespread deterioration in forest health in Europe was observed, first for the European fir and, subsequently, also for many other tree species. Now a large portion of the forests in Europe is affected by forest decline to varying degrees. The first aim of the study is to investigate if forest damage and forest die-back have lead to a change in waterflow. The study area is t
As product life cycles continue to shorten, the importance of having an efficient innovation and product development process becomes increasingly important for any company operating in a competitive market. The company’s development process model, from the very first product planning phase in which a suitable portfolio of projects is created and maintained via the intermediary phases until the pro
It is well-known that the classical Poisson kernel for the unit disc $\D$ in the complex plane is naturally associated to the Laplacian. In this paper we establish a similar relationship between the kernel $$ P_2(z)=\frac{1}{2}\frac{(1-\lvert z\rvert^2)^3}{\lvert 1-z\rvert^4}, \quad z\in\D,$$ and a certain second order differential operator $D_2(z,\partial)$. The analysis of this relationship depe
This thesis investigates informational asymmetry in an expert market through developing a base and an extended theoretical model. The example in focus is the case of driving schools. The asymmetry in information is of the nature that the seller knows more about how many lessons (quantity of the good) the buyer needs. A key point of interest is also the repeated nature of the buyer and seller’s int
Diffusion magnetic resonance imaging (dMRI) in radiotherapy has the potential to facilitate the identification of treatment resistant regions within tumours, such as areas with insufficient oxygen supply. This is particularly interesting in head and neck (H&N) tumours with poor prognosis correlated with unidentified hypoxic areas. However, dMRI is sensitivive to the magnetic susceptibility dif
Enhancing the physicochemical and sensory properties of flavoured vodkas using hydrocolloids is of significant interest to the beverage industry. Hydrocolloids like xanthan gum and carboxymethyl cellulose (CMC) can influence texture and stability, yet their specific impacts in alcoholic systems are underexplored. This study aims to evaluate the effect of hydrocolloids on the viscosity, turbidity,
Cancer remains one of the main challenges in healthcare, with profound global impact both in terms of morbidity and mortality. Spago Nanomedical is a Swedish company that has developed innovative metal-ion enriched nanoparticle-based therapies for cancer treatment and diagnosis. These nanoparticles have shown great promise and are currently undergoing clinical trials, however, there persists a des
The project aims to optimize the design and fabrication of InGaAs quantum-well field-effect transistor (QW-FET) by investigating transfer and output characteristics of the QW-FET. This work found a lower source/drain contact resistance solution starting with fabricating micrometer-level gate length transistors. It is a multiple-layer design, n-type InGaAs and n-type InP over channel. The stack of
In spite of our current knowledge regarding the biology underlying cancer genesis, reliable methods for the discovery of cancer driver (CD) genes are still in great need. The rather recent incorporation of epigenetic markers to the cancer paradigm has nevertheless opened the door for the development of new computational approaches to the problem. This work is aimed to study the enrichment of cer
