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Genetic differentiation between populations of the moss Hylocomium splendens from low versus high elevation in the Scandinavian mountain range

To test the genetic relationship between alpine and subalpine forms of Hylocomium splendens, pairwise sampling was undertaken of populations from four areas, representing the southern and northern ranges of the Scandes. From each population I sampled 75 shoots in a hierarchical fashion, and these were screened for variation at 12 allozyme loci. The pairwise genetic identity (I) among subalpine and

Probing biological tissue microstructure with magnetic resonance diffusion techniques

Diffusion nuclear magnetic resonance methods traditionally used within colloid and porous media science have recently been applied to the study of microstructures in biological tissue using magnetic resonance imaging. Improved experimental design utilizing multiple diffusion periods or the length of the displacement encoding gradient pulses increases the information content of the diffusion experi

Trends of HIV-1 and HIV-2 prevalence among pregnant women in Guinea-Bissau, West Africa: possible effect of the civil war 1998-1999.

Objectives: Sentinel surveys in Bissau, the capital of Guinea-Bissau, have shown low prevalence of HIV-1 but high HIV-2 prevalence before 1998. Guinea-Bissau experienced a civil war in 1998-1999. To examine specifically the trends of HIV prevalence from antenatal surveys in Bissau, Guinea-Bissau in 1987-2004, and whether the civil war in 1998-1999 could have an effect on HIV prevalence levels afte

Incidence of myocardial infarction in elderly men being treated with antihypertensive drugs: population based cohort study

OBJECTIVE: To analyse the association between use of antihypertensive treatment, diastolic blood pressure, and long term incidence of ischaemic cardiac events in elderly men. DESIGN: Population based cohort study. Baseline examination in 1982-3 and follow up for up to 10 years. SETTING: Malmo, Sweden. SUBJECTS: 484 randomly selected men born in 1914 and living in Malmo during 1982. MAIN OUTCOME ME

Factors important for efficacy of stereotactic body radiotherapy of medically inoperable stage I lung cancer. A retrospective analysis of patients treated in the Nordic countries

We reviewed results of SBRT treatment of 138 patients with medically inoperable stage I NSCLC treated during 1996 - 2003 at five different centres in Sweden and Denmark. Mean age was 74 years ( range 56 - 90) with 69 men and 72 women. SBRT was delivered using a 3D conformal multifield technique and a stereotactic body frame. Doses delivered were 30 - 48 Gy (65% isodose at the periphery of planning

Diffusivity measurements using holographic laser interferometry in a cubic lipid-water phase

The diffusion of glucose in a cubic lipid-water phase was studied with holographic laser interferometry. The X-ray diffraction data showed that the structure of the cubic phase could be described as a primitive cubic lattice under the experimental conditions used. The present study shows that holographic laser interferometry is suitable for determining the concentration profile due to diffusion, e

A systematic overview of radiation therapy effects in breast cancer

A systematic review of radiation therapy trials in several turnout types was performed by The Swedish Council of Technology Assessment in Health Care (SBU). The procedures for evaluation of the scientific literature are described separately (Acta Oncol 2003; 42: 357-365). This synthesis of the literature on radiation therapy for breast cancer is based on data from 29 randomized trials, 6 meta-anal

Det ideologiska landskapet

The present work is one of nine parts making up the archaeological project The Öresund Fixed Link. The book begins with an account of all the features and artefacts that are considered to have belonged to the ideological sphere within the project. The focus is on two sites, one located on the coast, the other in the outer hummocky landscape. As regards remains on the coast, this work concentrates

Pharmacokinetic and pharmacodynamic variability as possible causes for different drug responses in migraine. A comment

The pharmacokinetics of antimigraine drugs zolmitriptan and sumatriptan varied considerably with a fourfold to 10-fold variation in plasma levels. In addition, the pharmacodynamics of triptans as investigated in vitro also varied considerably. In theory, there should probably be a 10-fold variation in doses available, but in clinical practice a fourfold difference in doses will probably cover the

Softwood hemicellulose-degrading enzymes from Aspergillus niger: Purification and properties of a β-mannanase

The enzymes needed for galactomannan hydrolysis, i.e. β-mannanase, α-galactosidase and β-mannosidase, were produced by the filamentous fungus Aspergillus niger. The β-mannanase was purified to electrophoretic homogeneity in three steps using ammonium sulfate precipitation, anion-exchange chromatography and gel filtration. The purified enzyme had an isoelectric point of 3.7 and a molecular mass of

Effect of riparian structure, temperature and channel morphometry on detritus processing in channelized and natural woodland streams in southern Sweden

1. Ten south Swedish streams were selected to represent two distinct types - natural woodland streams and channelized streams. Measurements were made on leaching, decomposition and microbial respiration of the dominant riparian vegetation (European Black Alder), structure of the benthic macroinvertebrate community, macroinvertebrates inhabiting leaf material, channel morphometry, macrophyte compos

Pattern of inspiratory gas delivery affects CO(2) elimination in health and after acute lung injury.

Objective To avoid ventilator induced lung injury, tidal volume should be low in acute lung injury (ALI). Reducing dead space may be useful, for example by using a pattern of inspiration that prolongs the time available for gas distribution and diffusion within the respiratory zone, the mean distribution time (MDT). A study was conducted to investigate how MDT affects CO2 elimination in pigs at he