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Embedded systems often operate in so variable con- ditions that design can only be carried out for some worst-case scenario. This leads to over-provisioned resources, and undue power consumption. Feedback control is an effective (and not yet fully explored) way to tailor resource usage online, thereby making the system behave and consume as if it was optimized for each specific utilization case. A
Data are often collected for a single species within an ecological community, so quantitative tools for drawing inferences about the unobserved portions of the community from single-species data are valuable. In this paper, we present and examine a method for estimating community dimension (the number of strongly interacting species or groups) from time series data on a single species. The dynamic
The heterogeneous group of T-cell lymphomas consist mostly of aggressive diseasess, with generally unfavourable outcome compared to aggressive B-cell lymphomas following similar therapy. This thesis focus on outcome and risk factors for inferior survival, in an unselected population-based cohort of T-cell lymphoma patients. In the first study, outcome of the precursor malignancy T-cell Lymphoblast
We study the potential benefits of cooperative multiple-input multiple-output signaling from multiple coherent base stations with one or more mobile stations in an urban macrocellular environment at 2.66 GHz. The analysis uses fully-coherent measurements of the channel from three base stations to a single mobile station equipped with four antennas. The observed channels are used to explore the gai
Popular Abstract in Swedish Populärvetenskaplig sammanfattning Familjär hypertrof kardiomyopati (HCM) är den vanligaste ärftliga hjärtsjukdomen som ärvs autosomalt dominant, dvs. ca 50% risk för varje barn i den drabbade familjen. Tidigare studier har visat hög risk för HCM relaterade tillbud inklusive plötslig hjärtdöd (SCD) under barndomen, med en incidens upp till 10 % under de två första decenFamilial hypertrophic cardiomyopathy (HCM) is the most common inherited heart disease, transmitted in an autosomal dominant fashion, i.e. 50% risk for transmission of the disease-causing mutation to each child of the affected family. Previous studies reveal a high risk for HCM related cardiac events including sudden cardiac death (SCD) during childhood, with a peak incidence of up to 10% during th
A modified version of the delayed single-photon self-interference experiment is performed using a sample of Pr:Y2SiO5 for detecting the interference pattern. Instead of using a beam splitter and two spatially separated paths for the light to travel towards the material, acousto-optic modulators are used to create two light pulses and let the pulses travel along the same path
The setting for this study is Swedish film culture of the 1920s, which has been studied with a focus on representations of masculinity and gender relations according to four themes: 1) children and youth 2) fatherhood and love 3) sexuality and popularity 4) ethnicity and racial stereotyping. The rise of new consumer culture in the first decades of the 20th century created turmoil between traditi
Because of deflections under load, contacts on tooth flanks can occur outside the theoretical plane of action between non-conjugated profiles especially when tooth modifications are not appropriate. The main objective of the present paper is to introduce an original model of the dynamic behavior of spur gears when submitted to these particular meshing conditions. The pinion and the gear of the pai
I present the result of a small investigation of the sentence pattern in a sample of spoken Swedish. As expected, the typical constituent order is SV – more than 70 percent of the declaratives displayed this constituent order. This result is in line with previous investigations, but the figure is higher. An absolute majority of sentences have a pronominal element in sentence initial position, in m
In ethanol production from lignocellulose by enzymatic hydrolysis and fermentation, it is desirable to minimize addition of fresh-water and waste-water streams, which leads to an accumulation of substances in the process. This study shows that the amount of fresh water used and the amount of waste water thereby produced in the production of fuel ethanol from softwood, can be reduced to a large ext
Under the view of nominative Case taken by Chomsky (2000, 2001), one would expect nominative to be the marked or complex Case, being merged after accusative. In fact, however, it is the other way around, nominative preconditioning accusative and also being the Case of simple structures (unaccusative, etc.). The article argues that this Nominative Puzzle is not real, the nominative argument in fact
This study analyses printed educational material on cholesterol, food and health-related lifestyle changes used in primary care in southern Sweden. Two theoretically grounded perspectives are used: orientation of knowledge and rhetoric. According to the first one, the material contained many examples of abstract and detailed knowledge, such as tables of energy contents, and a little less of action
This thesis is the result of three years of work in Lund University, as a member of DELPHI group, at the Elementary Particle Physics Department. The work concerns the study of Bose-Einstein correlations in electron-positron collisions at LEP. Since the Jetset event generator and its implementation of the Bose-Einstein correlation effect, LUBOEI, is the most used tool in the particle physics commun
Data from finished projects may stay in a researcher’s mind for many reasons: a fascination for a field, members’ charm, odd circumstances in the collecting process, analytical frustration etc. Yet the possibility of bringing back one’s attention to these data in order to understand them in new conceptual contexts is rarely as valued as the opposite: a quest for new data to be put in one’s famili
The present study examined whether socio-motivational effects from working with a Teachable Agent (TA) might transfer from the formative learning phase to a summative test situation. Forty-nine students (9-10 years old) performed a digital pretest of math skills, then played a TA-based educational math game in school over a period of eight weeks. Thereafter, the students were divided into two grou
We consider the problem of approximating a given function in two dimensions by a sum of exponential functions, with complex-valued exponents and coefficients. In contrast to Fourier representations where the exponentials are fixed, we consider the nonlinear problem of choosing both the exponents and coefficients. In this way we obtain accurate approximations with only few terms. Our approach is bu
The gamma evaluation method has become the gold standard for the comparison between measured and calculated absorbed dose distributions. However, test criteria and failure rate tolerance levels have hitherto normally been based on empirical evidence, rather than rigorous statistical analysis. In this work, it is proposed that the gamma-evaluation method could be reinterpreted such that the absorbe
