Filtyp
In this article I address the significance of semiotic processes supporting early social interaction, communication and learning in the evolution of the modern human niche of infancy and childhood, known to be extended even in comparison with closely related hominin species. Human infancy and childhood is a biocultural niche, embedded within and causally contributing to the expansion and elaborati
The modernisation of Swedish households during the twentieth century prompted a considerable productivity growth in household production. This paper examines the association between this process and the allocation of female time in Swedish urban households during the period 1920-1990. Estimates presented in the paper suggest a minimum potential time reduction for a fixed volume of routine househol
The reduction of the (A root 5x root 5)R27 degrees surface oxide on Pd(100) and Pd75Ag25(100) surfaces by CO has been investigated by high-resolution X-ray photoelectron spectroscopy in combination with kinetic analysis using the Avrami-Erofeev theory. For both surfaces we observed faster reduction with increasing temperature. Kinetic analysis indicates that the reduction process is phase boundary
To improve the accuracy and transferability of molecular mechanics force fields, one needs a simple physical description of intermolecular polarization based on quantum chemistry. Ideally, in the quantum-chemical description, each molecule is treated separately and the interactions with other molecules are included as a perturbation. We propose a simple formulation of this perturbation, viz. to mo
We present a comprehensive study of the crystal structure, magnetic structure, and microscopic magnetic model of (CuBr)LaNb2O7, the Br analog of the spin-gap quantum magnet (CuCl) LaNb2O7. Despite similar crystal structures and spin lattices, the magnetic behavior and even peculiarities of the atomic arrangement in the Cl and Br compounds are very different. The high- resolution x-ray and neutron
Popular Abstract in Swedish Hemolytiskt uremiskt syndrom (HUS) är den vanligaste orsaken till njursvikt bland barn i västvärlden. HUS kännetecknas av hemolytisk anemi (sönderfall av och brist på röda blodkroppar), trombocytopeni (brist på blodplättar) och akut njursvikt. Den vanligaste formen av sjukdomen, typisk HUS orsakas av Shigatoxinproducerande bakterier, främst olika stammar av EscherichiThis thesis addressed the diagnosis, pathogenesis and clinical course of specific renal diseases hemolytic uremic syndrome (HUS) and dense deposit disease (DDD). HUS may be associated with infection caused by Enterohemorrhagic Escherichia coli (EHEC) or with complement dysfunction due to complement mutations or auto-antibodies (atypical HUS, aHUS). EHEC is a non-invasive highly virulent bacterium
Med avseende på de svenska förhållandena vintertid kan frostpåverkan antas ha betydande inverkan på nedbrytningen av betong i vattenbyggnader. Både ytliga och inre skador, vilka misstänks ha orsakats av frostpåverkan, har upptäckts på betong i exempelvis vattenkraftkonstruktioner. Nämnda observationer har väckt frågor om vattenbyggnaders beständighet i ett kallt klimat. Ytligt belägna skador, vilOwing to the winter conditions in Sweden, the effects of frost action may have a considerable impact on the deterioration of concrete. Both superficial and internal damage, which are suspected to have been caused by frost action, have been found in concrete in hydraulic structures. These observations have raised questions about the long-term behaviour of hydraulic structures in cold regions. Supe
The 24th of April 2015 will mark the centennial commemoration of the Armenian genocide and is expected to be a worldwide ceremony. Hundred years will have passed since the start of the state orchestrated massacres and deportations in 1915 which emptied the majority of historical Armenia from its native population. A century has passed, but ironically, the Armenian genocide seems to become more top
Eiglera flavida and Epilichen scabrosus should be deleted from the Danish checklist. The collections of Caloplaca citrina are revised and most of them referred to C. flavocitrina. Amandinea pelidna, Arthonia peltigerae, A. phaeophysciae, Caloplaca britannica, C. polycarpa, Clauzadea metzleri, Cyphelium karelicum, Dendrophoma lecanorae, Didymellopsis collematum, Endococcus protoblasteniae, Ephebe p
During this thesis nanoporous alumina has been used as a template for the synthesis of nano-confined palladium structures. The nanoporous templates have been synthesized by anodization of aluminum and characterized using atomic force microscopy (AFM), scanning electron microscopy (SEM) and small angle X-ray scattering (SAXS), resulting in good statistics of the pore diameter and interpore distance
Biomedical application of nanoparticles is largely associated to their fate in biological media which, in fact, is related to their surface properties. Surface functionalitzation plays a key role in determining biodegradation, cytotoxicity and biodistribution through interactions which may be meditated by the macromolecules occurring in biological media. This project is focused on the effect of di
In an age of increasing usage of heavily interconnected platforms, graph databases have increased in popularity due to their ease of modelling these systems. This thesis will evaluate if the graph database Neo4j can be used to model Lime's CRM System efficiently by comparing the performance of Neo4j and MS SQL on queries similar to those existing in Lime CRM. To benchmark the databases, they w
This research aims to investigate the relation of CEO compensation, especially how the sensitivity of CEO wealth to stock return volatility (vega), but also how the sensitivity of CEO wealth to stock price (delta) affects the risk of the firm. Moreover, these relations are investigated in the context of cross-listing to examine whether there are differences between US-only listed firms and those t
Modication of wood is carried out to increase the durability and dimensional stability of wood, and one of the modication methods is acetylation. Acetylation of wood means that polymers in the cell wall react with acetic anhydride. Today, acetylated wood is rarely used in load-bearing structures and there are only a few studies on how the fracture characteristics are affected by acetylation. A stu
Detta project utfördes i samarbete med svenska förpackningsföretaget Tetra Pak Packaging Solutions AB. Deras huvuduppgift är att utveckla förpacknngsmaterial, processer och maskinlinjer som krävs för att producera laminatet, vilket är att flerskiktsmaterial som vanligtvis består av papper, plast och aluminium för att skapa en stark och skyddande barriär för flytande livsmedel. För att skapa laminaThis project was carried out in cooperation with Swedish packaging company Tetra Pak Packaging Solutions AB. Their main purpose is to develop the packaging material, process, and machine lines needed to produce the laminate, which is a multi-layered material typically made by combining paper, plastic, and aluminum to create a strong, protective barrier for liquid food packaging. In order to create
Problem: The Milky Way disk consists of two distinct components, the thin and thick disk, each with unique kinematical, elemental, and age-related properties. Among all the properties considered, age stands out as the only one that does not exhibit significant overlap, thereby offering clearer separation between the populations. Stellar ages, determined through isochrone fitting, are reliable main
Extremophilic bacteria, like Rhodothermus marinus, hold promising potential to be used as non-model cell factories for the production of various metabolites, such as carotenoids or exopolysaccharides, due to their inherent adaptability to extreme environmental conditions. This study explores the production, isolation, and characterisation of carotenoids from an engineered R. marinus strain termed
