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Popular Abstract in Swedish Naturliga störningsregimer är viktiga drivkrafter i vegetationsdynamiken hos de flesta skogstyper jorden runt. Att förstå de rumsliga och tidsmässiga egenskaperna i störningarna, såväl i nutid som i förfluten tid, är viktigt bl a vid utformningen av strategier för naturvård, likväl som för att kunna modellera inflytandet av klimat och människans påverkan. I denna avhandNatural disturbance is an important driving force of community dynamics in many forest types around the globe. Understanding spatial and temporal properties of disturbance events in the present and in the past is important in formulating the nature conservation strategies as well as for the modeling of climate and human impacts on forest vegetation. In this thesis I studied wind and fire disturban

This article reports results from a long-term follow-up of adolescents with conduct disorder who have been patients at an inpatient child psychiatric unit in Lund, Sweden. Up to now, a total of 186 adolescents have participated in the follow-up study. The subjects are a heavily symptom-loaded group with many problems during their childhood. The study includes self-rating that describe psychiatric

Hollow fiber supported liquid membranes were applied for the passive extraction of phenoxy acid herbicides from water samples. Polypropylene hollow fiber membranes (240 mu m i.d., 30 mu m wall thickness, 0.05 mu m pore size, 30 cm length) were impregnated with 2.0% tri-n-octylphosphine oxide (TOPO) in di-n-hexyl ether in the pores of the fiber wall to form a liquid membrane. They were then filled

The long-term outcome from silicone tube nerve repair was compared with the outcome from routine microsurgical repair in a clinical randomized prospective study, comprising 30 patients with median or ulnar nerve injuries in the distal forearm. Postoperatively, the patients underwent neurophysiological and clinical assessments of sensory and motor function regularly over a 5-year period. After 5 ye

We have investigated whether transient permeabilization caused by the application of pulsed electric field would give rise to transient changes in the potato tissue viscoelastic properties. Potato tissue was subjected to nominal field strengths (E) ranging from 30 to 500 V/cm, with a single rectangular pulse of 10(-5), 10(-4), or 10(-3) s. The changes on the viscoelastic properties of potato tissu

Background The zinc transporter 8 (ZnT8) was recently identified as a common autoantigen in type 1 diabetes (T1D) and inclusion of ZnT8 autoantibodies (ZnT8Ab) was found to increase the diagnostic specificity of T1D. Objectives The main aims were to determine whether ZnT8Ab vary during follow-up 1 year after diagnosis, and to relate the reactivity of three types of ZnT8Ab to the residual stimulate

Objectives: To evaluate potential sex differences and other factors associated with complications within 4 months after a hip fracture. Methods: A total of 1,915 patients. 65 years (480 men) with hip fracture were consecutively included in a prospective multicenter cohort study. A review of medical records and patient interviews according to a study protocol based on the Standardized Audit of Hip

Background and purpose In Sweden, surgery for knee osteoarthritis (OA) in patients younger than 55 years of age has doubled during the last 10 years. We evaluated the use of 3 surgical alternatives: high tibial osteotomy (HTO), unicompartmental arthroplasty (UKA), and total knee arthroplasty (TKA). We also examined the outcome, expressed by rate of revision. Methods The numbers of all procedures d

Objective: This study was conducted to determine the effects of vildagliptin on incretin hormone levels, islet function, and postprandial glucose control in subjects with impaired glucose tolerance (IGT). Research Design and Methods: A 12-week double-blind, randomized, parallel-group study comparing vildagliptin (50 mg qd) and placebo was conducted in 179 subjects with IGT (2-h glucose= 9.1 mmol/l

OBJECTIVES: Previous studies have shown that patients with diabetes mellitus have an increased mortality after suffering from acute myocardial infarction (AMI). Patients with diabetes have several risk factors for cardiovascular disease. Our objective was to quantify the prevalence of pharmacological cardiovascular prevention at admission and relate such treatment to short and long-term mortality

The technique equilibrium sampling through membrane (ESTM) was extended to measuring the free drug concentration in solutions of drug and protein. Bjerrum and Scatchard plots were employed for characterizing individual drug binding to pure human blood proteins. Four drugs were investigated as a model system: fluvoxamine and ropivacaine which dominantly bind to alpha-acid glycoprotein (AGP), and R,

We wanted to investigate the origin of seminal plasma albumin and its relation to the male reproductive parameters. Semen samples from 916 men, under infertility assessment, were analysed according to guidelines of the World Health Organization. Seminal plasma constituents, i.e. albumin, markers of the epididymal (neutral alpha-glucosidase, NAG), prostatic (prostate-specific antigen, PSA, and zinc

När en person inte kan vara delaktig i meningsfulla aktiviteter kan hjälpmedel vara ett måste för att underlätta. Studier har visat att elrullstol möjliggör delaktighet, och detta kan därmed leda till en ökad livskvalitet. Fyra personer medverkade i denna studie, baserad på Canadian Model of Occupational Performance, CMOP. Två tekniker användes för datainsamlingen. Dels utfördes en intervju och de

Control of crop pests by shifting host plant availability and natural enemy activity at landscape scales has great potential to enhance the sustainability of agriculture. However, mainstreaming natural pest control requires improved understanding of how its benefits can be realized across a variety of agroecologies. Empirical studies suggest significant but highly variable responses of natural pes

Endosomal entrapment is a key issue for the intracellular delivery of many nano-sized biotherapeutics to their cytosolic or nuclear targets. Photochemical internalisation (PCI) is a novel light-based solution that can be used to trigger the endosomal escape of a range of bioactive agents into the cytosol leading to improved efficacy in pre-clinical and clinical studies. PCI typically depends upon

OBJECTIVES: To examine patient willingness and possible shift in willingness for surgery and to investigate factors associated with this shift, following participation in the digital non-surgical osteoarthritis (OA) treatment program Joint Academy.METHODS: 458 individuals (mean age 62±5.6 years, 67% women) with diagnosed hip or knee were evaluated after six weeks in Joint Academy, comprising educa

STUDY OBJECTIVE: Although national variation in short-term prognosis (that is, 30 day mortality) after a patients first hospitalisation for heart failure may depend on individual differences between patients, dissimilarities in hospital practices may also influence prognosis. This study, therefore, sought to disentangle patient determinants from institutional factors that might explain such variat

Abstract in UndeterminedThis paper presents an inductorless ultra-low power radio receiver front-end intended for applications such as sensor networks and medical implants. It consists of low noise amplifier, quadrature mixer, and a frequency divider for the generation of quadrature local oscillator signals. The power consumption is just 282μW from a 0.9V supply when it operates in the 915 MHz ISM

Syftet med uppsatsen är att studera och analysera hur en räntehöjning respektive -sänkning påverkar aktiekursen samt om det föreligger någon skillnad mellan olika branscher och soliditetsnivåer. Vi har genomfört en kvantitativ studie, en händelsestudie, av totalt 60 svenska företag fördelade på sex olika branscher, alla noterade på Stockholmsbörsen. Vi har beräknat den onormala avkastningen för al