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Statistical Mechanical Studies of Titrating Polyelectrolytes

Popular Abstract in Swedish Som titeln antyder behandlar avhandlingen titrerande polyelektrolyter, d.v.s. stora molekyler med många syra-basgrupper. Sådana molekyler kan vi finna lite överallt, ja till och med i våra kroppar, som innehåller en mängd olika polyelektrolyter. Deras egenskaper kan variera starkt beroende på omständigheterna och har många biologiska och industriella tillämpningar. Att Different models and statistical mechanical approximations for titrating polyelectrolytes are studied and the results compared with Monte Carlo simulations and experimental data. Three types of models have been used in the simulations: i) rigid structures and freely jointed chains with ii) rigid bonds and iii) flexible, harmonic bonds. Sampling is facilitated for the latter two by the use of pivot

Formation and Dynamics of Molecular Excitons and their Fingerprints in Nonlinear Optical Spectroscopy

Popular Abstract in Swedish Många grundläggande processer i naturen involverar transport av energi från ett ställe till ett annat. Ett exempel på detta är fotosyntesen där solljus fångas upp av molekylkomplex, för att sedan transporteras till ett reaktionscenter. I reaktionscentret byggs den laddning upp som sedan används för att framställa växtmassa. För att minimera energiförlusten i den här typAn efficient transfer of energy in molecular systems has proven to be of fundamental importance both in nature and industrial applications. The ability of molecules to work together forming collective excitations, so-called excitons, plays a key role in for example the extraordinary fast energy transfer involved in the first steps of photosynthesis. The characterization of excitonic states in conj

A factorial experimental evaluation of automated test input generation – Java platform testing in embedded devices

Background. When delivering an embedded product, such as a mobile phone, third party products, like games, are often bundled with it in the form of Java MIDlets. To verify the compatibility be- tween the runtime platform and the MIDlet is a labour-intensive task, if input data should be manually generated for thousands of MIDlets. Aim. In order to make the verification more efficient, we investiga

Lipocalins

Less than a decade has elapsed since the publication in 2000 of the first anthology devoted to lipocalins (Biochim Biophys Acta 1482, 2000), and only a few years since the first Lipocalin International Symposium in Copenhagen in 2003 (Benzon Symposium no. 50 “The Lipocalin Protein Superfamily,” Copenhagen, 2003) and the introduction of a public lipocalin website (http://www.jenner.ac.uk/lipocalins

Verification of sheet metal forming simulation of advanced thin plate parts using a first order friction model

There is today a need of better prediction of part geometry regarding industrial products by simulations. There is a need for better prediction of material inflow, stresses and strains and final geometry. One way to solve this could be by using a more advanced friction model. Today a zero order friction model (Coulomb friction) is normally used. By using a friction model of higher order the fricti

Efficiency considerations for DT-CNN hardware

Cellular Neural Networks have become a popular paradigm for modeling nonlinear systems. First-hand implementations are in software on floating-point platforms for pure performance, while programmable analog circuitry has been tested for embedded low-power applications. The paper discusses gradual algorithmic and structural improvements that bring efficient digital hardware into consideration. This

The mediatized Zlatan: The immigrant’s path from provincial otherness to national identity and to a Western literary space

In this article the mediatisation of Zlatan Ibrahimovic's autobiography, written by the journalist David Lagercrantz, is investigated through the reception of the book as well as of other media formats in which it was made public. A main point made is that the processes of mediatisation is a main factor in creating a literary trademark and bestseller. The footballer's mythic life story, as express

Gene Regulatory Networks: Dynamics and Stability

Popular Abstract in Swedish Alla levande varelser består av celler. En cell innehåller ett stort antal kemiska föreningar, och särskilt viktiga är proteiner och DNA. Proteiner utför många livsnödvändiga kemiska reaktioner, och DNA består av gener som beskriver hur dessa proteiner konstrueras. En gen kan vara uttryckt, så att det protein den beskriver - kodar för - tillverkas, men den kan också varLife as we know it is based on cells that use proteins and RNA to carry out metabolism, self-replication, and other essential tasks. The genes that code for these molecules are encoded in DNA, and through the processes of transcription and translation the cell expresses its genes. Some proteins are transcription factors that regulate the transcription rate of genes, so genes interact and form a ge