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Bakre r i svenskan. En alternativ hypotes

The sound values of /z/ and /r/ in proto-Nordic are discussed. It is suggested that the modern Swedish [r] and [R] are different results in different areas of the merger between /z/ and /r/ in Old Swedish, depending on the distribution of stress in polysyllabic words. The article is a shorter version of Teleman, U. (2005), Om r-fonemets historia i Svenskan (Nordlund 5). Insittutionen för nordiska

Lamperti Transform and a Series Decomposition of Fractional Brownian Motion

The Lamperti transformation of a self-similar process is a strictly stationary process. In particular, the fractional Brownian motion transforms to the second order stationary Gaussian process. This process is represented as a series of independent processes. The terms of this series are Ornstein-Uhlenbeck processes if $H1/2$. From the representation effective approximations of the process are der

Naturlighetens positioner. Nordiska kulturforskare om födsel och föräldraskap

Denna bok handlar om naturlighet iförhållande till födsel och föräldraskap - om hur naturligheten positioneras i människans föreställningar kring födseln. Under de tio-femton senaste åren har det skett en förändring i dessa föreställningar från en högteknologisk omsorg med hög riskmedvetenhet till en mer naturlig eller alternativ omsorg. Där tidigare det medicinska tänkandet, som innebar att hälso

Degradation of acetonitrile through a sequence of microbial reactors

Degradation of nitrogen containing organic compounds often leads to formation of ammonium and some low molecular weight organic compounds. The study is focused on degradation of acetonitrile in a sequence of stirred biofilm reactors, where the degradation of acetonitrile into acetic acid and ammonia takes place in the first two reactors. A large fraction of the acetic acid is also degraded in thes

Effects of E-selectin and P-selectin blockade on neutrophil sequestration in tissues and neutrophil oxidative burst in burned rats

OBJECTIVE: Neutrophil deposition in tissues (leukosequestration) after shock may produce local tissue injury from proteases and high-energy oxygen species released from sequestered neutrophils. The initial step in the binding of neutrophils to capillary endothelium is the interaction of adhesion molecule (selectin) receptors between neutrophils and endothelial cells. We quantified leukosequestrati

Platelet-derived growth factor receptors expressed in response to injury of differentiated vascular smooth muscle in vitro: effects on Ca2+ and growth signals

Vascular smooth muscle cells (VSMCs) in the intact vascular wall are differentiated for contraction, whereas the response to vascular injury involves transition towards a synthetic phenotype, with increased tendency for proliferation. Platelet-derived growth factor (PDGF) is thought to be important for this process. We investigated expression and functional coupling of PDGF receptors (PDGFRs) alph

Revision of three natural groups of xanthorioid lichens (Teloschistaceae, Ascomycota)

Status of three natural groups of xanthorioid lichens (Teloschistaceae), namely Xanthomendoza ulophyllodes, Xanthoria elegans and Teloschistes villosus groups is revised. Their status is elevated to the generic level. They are segregated from other hitherto accepted groups, namely Oxneria (with type species Oxneria alfredii (S. Kondr. & Poelt) S. Kondratyuk & Karnefelt) from Xanthomendoza,

Additive effects of leflunomide and tacrolimus in prevention of islet xenograft rejection

Leflunomide is a low molecular weight immunosuppressive drug which inhibits the enzymes dehydroorotate dehydrogenase and protein tyrosine kinase, both of which are important components in the immune response. As the mechanisms of action of leflunomide and tacrolimus are different, we postulated an additive or synergistic effect of the two drugs and investigated the effects of leflunomide alone, or

Palaeomagnetism of Eocene Talerua Member lavas on Hareoen, West Greenland

The results of a paleomagnetic sampling carried out along two vertical profiles (altogether 19 lava flows, 126 samples) covering the entire stratigraphy of the Talerua Member lavas (similar to 39 Myr old) that outcrop on the island Hareoen are presented and represent some of the youngest volcanism in the West Greenland flood volcanic province. Rock magnetic experiments and microprobe analysis demo

Necked-in Superdeformed Nuclei

Superdeformation, i.e. elongated shapes with the longest axis approximately twice as long as the shorter axes, has provided many new insights in nuclear structure. In this dissertation the possibility of forming superdeformed states related to two connected spheres, having a more or less pronounced neck, is investigated. Detailed Nilsson-Strutinsky calculations with the cranked Woods-Saxon potenti

Comprehensive regional and temporal gene expression profiling of the rat brain during the first 24 h after experimental stroke identifies dynamic ischemia-induced gene expression patterns, and reveals a biphasic activation of genes in surviving tissue

In order to identify biological processes relevant for cell death and survival in the brain following stroke, the postischemic brain transcriptome was studied by a large-scale cDNA array analysis of three peri-infarct brain regions at eight time points during the first 24 h of reperfusion following middle cerebral artery occlusion in the rat. K-means cluster analysis revealed two distinct biphasic

The involvement of cellular proliferation status in the expression of the human proto-oncogene DEK

The role of the DEK protein, involved in the leukemia-associated fusion protein DEK-CAN, is not yet known. In this study, we show a higher expression of DEK mRNA in immature cells than in mature cells. Furthermore, a correlation between DEK expression and cell proliferation was demonstrated, suggesting that DEK plays a role in the proliferation of hematopoietic cells and raising the question of wh

Interactions between streptococcal M proteins and human plasma proteins

Popular Abstract in Swedish Streptokocker orsakar flera olika infektioner hos människa såsom halsfluss, svinkoppor och sällsynta livshotande sjukdomstillstånd som blodförgiftning, toxiskt chock syndrom, nekrotiserande fasciit, glomerulonefrit, och reumatisk feber. För att orsaka dessa infektioner måste bakterierna undvika immun-försvaret. Komplementsystemet utgör en viktig del av det medfödda immuStreptococcus pyogenes is a common human pathogen, which causes a variety of diseases. A major virulence factor of S. pyogenes is the surface-associated M protein, which mediates resistance to phagocytosis. Several studies indicate that M proteins inhibit complement deposition and thereby phagocytosis. It is often assumed that S. pyogenes lacking M protein activates complement via the alternative