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Masonhalea, a new lichen genus in the Parmeliaceae.

The new genus Masionhalea is segregated from Cetraria s. lat. on the basis of anatomy, morphology, ecology and chemistry. Its only species, M. richardsonii (Hook. in Richardson) Kärnef. is described and illustrated and a distribution map is provided.

Läkarstudenter upplever mer stress än andra studenter.

Medical students at a Swedish university were satisfied with their choice of future profession and they felt that the studies were stimulating. However, they experienced their student role as unclear, and that there was a lack of feedback from the teachers. The medical students showed a higher level of stress in comparison with non-medical students. The women had more stress and mental symptoms th

CCL25 Enhances CD103-Mediated Lymphocyte Adhesion to E-Cadherin.

Our results demonstrate that (1) CD103 is upregulated on CD8(+) T cells subsequent to their entry into the small intestinal epithelium, and (2) that the chemokine CCL25 enhances CD103-mediated adhesion to E-cadherin. These results suggest a novel role for chemokines in modulating interactions between lymphocytes and epithelial cells at mucosal surfaces.

Cost effectiveness of nasal budesonide versus surgical treatment for nasal polyps

Objective: To conduct a cost-effectiveness study of nasal budesonide versus surgical treatment in the management of nasal polyps. Design and methods: A decision-tree model reflecting two different treatment strategies for nasal polyps in Sweden was developed. The first strategy was initial polypectomy, performed under three different sets of circumstances: inpatient functional endoscopic surgery,

Implementing Cognitive Semantics

This book is about how concepts are structured and processed. It is based on the findings in cognitive linguistics over the last decade, where thorough studies have been made about how concepts function. Concepts appear as image schemata, a spatial form of representation with very powerful properties. It embodies prototypicality, boundedness, orientation, plexity, scale proportions, part-whole re

Transient disruption of autocrine TGF-beta signaling leads to enhanced survival and proliferation potential in single primitive human hemopoietic progenitor cells.

Hemopoietic stem cells (HSCs) are maintained at relative quiescence by the balance between the positive and negative regulatory factors that stimulate or inhibit their proliferation. Blocking the action of negative regulatory factors may provide a new approach for inducing HSCs into proliferation. A variety of studies have suggested that TGF-beta negatively regulates cell cycle progression of HSCs

One-line modelling of complex beach conditions: An application to coastal erosion at Hai Hau beach in the Red River Delta, Vietnam

The long-term shoreline evolution at Hai Hau Beach in the Red River Delta, Vietnam was simulated using the one-line model GENESIS (Hanson, 1989). Dikes were modelled as seawalls and the sediment continuity equation in GENESIS was modified to take into account the offshore transport of fine-grained sediment. The model performed well, reproducing the magnitude and trend of the long-term shoreline ch

Analysis and Design of Hybrid Control Systems

Different aspects of hybrid control systems are treated: analysis, simulation, design and implementation. A systematic methodology using extended Lyapunov theory for design of hybrid systems is developed. The methodology is based on conventional control designs in separate regions together with a switching strategy. Dynamics are not well defined if the control design methods lead to fast mode sw

Venösa bensår kan behandlas både bättre och billigare. Beräkning av årliga kostnader baserad på en enkätstudie

Weekly resource use data for local wound treatment was collected from a clinical survey (138 patients). Annual costs were calculated from the weekly resource usage multiplied by unit costs and published epidemiological prevalence data for Sweden. The average weekly cost was 101 euro, though it differed depending by ulcer size. The total direct annual cost of venous leg ulcers in Sweden could be es

IdeS, a novel streptococcal cysteine proteinase with unique specificity for immunoglobulin G.

Recent work from several laboratories has demonstrated that proteolytic mechanisms significantly contribute to the molecular interplay between Streptococcus pyogenes, an important human pathogen, and its host. Here we describe the identification, purification and characterization of a novel extracellular cysteine proteinase produced by S.pyogenes. This enzyme, designated IdeS for Immunoglobulin G-

Giving language a hand: gesture as a cue based communicative strategy *

All accounts of communicative behaviour in general, and communicative strategies in particular, mention gesture1 in relation to language acquisition (cf. Faerch & Kasper 1983 for an overview). However, few attempts have been made to investigate how spoken language and spontaneous gesture combine to determine discourse referents. Referential gesture and referential discourse will be of particul

Intervention thresholds for osteoporosis in men and women: a study based on data from Sweden

The aim of this study was to determine the threshold of fracture probability at which interventions became cost-effective in men and women, based on data from Sweden. We modeled the effects of a treatment costing $500 per year given for 5 years that decreased the risk of all osteoporotic fractures by 35% followed by a waning of effect for a further 5 years. Sensitivity analyses included a range of

An assessment of nuclear microprobe analyses of B in silicate minerals

With recent findings of substantial amounts of B in rock-forming minerals, it has become evident a need exists for microprobe techniques allowing quantitative B determinations in minerals. A microprobe method based on the nuclear reaction B-11(p,alpha)2alpha has the potential to become a powerful tool for analyses of minerals with B contents spanning a wide concentration range. In this paper, we p