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"In what language would one polyglot praise another? Multilingualism and linguistic patriotism in the light of a letter and a poem from Magnus Gabriel Block to Sophia Elisabeth Brenner." In the late 17th and the early 18th centuries, there was a dialectic relation between the increasing national concern for the native language on one hand, and the international multilingual culture where Latin was

In this paper, tone mapping operations based on the nonlinear successive Mean Quantization Transform (SMQT) are proposed in order to convert high dynamic range images to low dynamic range images. A SMQTbased tone mapping applied on the luminance channel is derived as well as a SMQT-based method working directly on all RGB channels. Both methods are compared to other state-of-the-art methods and pr

The management of construction tolerances is a necessary and routine part of the construction activity and is normally brought to our attention only when failures are reported. In a study of tolerance management, the authors found widespread evidence of the same failures and the reasons for them. There seems to be no shortage of experience of the effects of failures in tolerances or of knowledge a

Do certain humans and animals have greater value than other humans and animals? The question will be discussed using some examples from pre-Christian burial practices and other depositions of human and animal bones in Scandinavia. During the pre-Christian period it seems that certain humans and certain animals were buried in graves made for the purpose, while other humans and animals were deposite

We studied in chimeric EGFP-Photinus luciferase HeLa cells the expression of fluorescence and luminescence in different cell culture conditions (medium with or without Serum, static or dynamic conditions, in suspension or on microcarriers) as a model to follow the productivity of a recombinant protein. By studying the effect of Butyrate known as general but unpredictable stimulating agent for prot

We investigate the effects of fracture- and inclusion-induced seismic anisotropy in a carbonate reservoir rock and the resulting influence this anisotropy may have on surface seismic data. Whole-core velocity measurements made on a carbonate sample from the Gulf of Mexico show evidence of elastic anisotropy. Constraints on the style of this anisotropy are obtained from comparisons with effective m

This thesis has investigated the importance of the VpreB1 protein in early B cell development. Mice lacking the VpreB1 protein showed normal numbers of peripheral mature B cells. The number of B220 positive cells in the bone marrow was also normal, but the amounts of pre-BI cells was increased 2-fold and the numbers of pre-B II cells were reduced by 20%. In all other respects the lymphoid compartm

Analysis of eye movements recorded with a mobile eye-tracker is difficult since the eye-tracking data are severely affected by simultaneous head and body movements. Automatic analysis methods developed for remote-, and tower-mounted eye-trackers do not take this into account and are therefore not suitable to use for data where also head- and body movements are present. As a result, data recorded w

This paper considers a class of control problems where there is a need to find switching-sequences between different linear systems, as well as linear control laws, to minimize some quadratic cost function. An algorithm to optimize the switching sequences for a class of switched linear problems is presented. The algorithm searches for solutions which are arbitrarily close to optimal finding the op

En samling brev från av en svensk adelsdam, Beata Christina Strömfelt,(1737 - 1820) analyseras som talspråkliga.

Delays and cost overruns are frequent problems in the construction industries of both developed and developing countries. Studies aimed at identifying the causes are often undertaken with just a broad appreciation of the construction process and frequently do not deal with multicultural issues when considering the reasons for overruns. The paper critically reviews existing attempts to uncover the

Popular Abstract in Swedish För att en multicellulär organism som männinskan ska kunna fungera måste celldelningen strikt kontrolleras. Protein som reglerar celldelning på cellulär nivå kallas för "tillväxtfaktorer". Vi har studerat ett sådant protein som kallas för transforming growth factor-beta (TGF-b). Namnet TGF-b kommer sig utav att detta protein kan transformera (omvandla) epiteliala njurceTransforming growth factor-beta (TGF-b) is a well-characterised growth regulatory factor, which acts on most cell types. This thesis has focused on the regulatory roles of TGF-b on normal lymphocytes. One interesting finding is that TGF-b acts both costimulatory and inhibitory on T-lymphocytes. The costimulatory effect depends on the presence of monocytes and is mediated by these cells. Furthermor

Transient electromagnetic wave propagation in a stratified, anisotropic, dispersive medium is considered. Specifically, the direct scattering problem is addressed. The dispersive, anisotropic medium is modeled by constitutive relations (a 3 3 matrix-valued susceptibility operator) containing time convolution integrals. In the general case, nine different susceptibility kernels characterize the med

In this article I examine whether an influential theory of mechanisms proposed by Peter Machamer, Lindley Darden and Carl Craver can accommodate polygenic effects. This theory is both interesting and problematic, I will argue, because it ascribes a central role to activities. In it, activities are needed not only to constitute mechanisms but also to perform their causal role. These putative functi

The immune system is an important part of the physiology of higher organisms. In the immune system antibodies play a key role in neutralizing and clearing potentially lethal threats from the environment. The importance of antibodies in the immune system has made them come to the attention as a tool in chemistry and medicine. This thesis, which is based on four original papers, deal with antibody d