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Polyamines added extracellularly to intestinal and vascular smooth muscle cells cause relaxation through inhibition of Ca2+ channel activity. Intracellularly applied polyamines also affect Ca2+ channel properties. Polyamines do not readily pass over the plasma membrane because of their positive charges but in permeabilized smooth muscle preparations they have free access to the cytoplasm. In this
Popular Abstract in Swedish Målsättningen med avhandlingen är att analysera vilken roll småskaligt entreprenörskap som alternativ överlevnadsstrategi har spelat i Sierra Leone under den ekonomiska kris som drabbade landet efter självständighet på 1960-talet. Avhandlingen baseras på nätverksteori, snowball metod och det empiriska underlaget utgörs av en studie av utvecklingen i Sierra Leone, med avSierra Leone is a small country with rich mineral resources such as diamonds, bauxite, gold and iron ore. Other resources include fishing, forestry and fertile agricultural land, which enable people to farm without any sophisticated methods of mechanization. Nevertheless, with all its wealth in resources, the country is relatively poor and is one of the least developed countries in the Sub-Saharan
This thesis aims to reconstruct and explain variations in storm activity, humidity, vegetation composition and land cover in south-west Sweden during the past 6500 years. Two ombrotrophic bogs, Store Mosse and Undarsmosse, situated on the coastal plain of Halland, were selected for this purpose. The coastal plain of Halland is positioned in the cyclone path and is therefore particularly sensitive
SUMMARY:BACKGROUND: Arterial vasospasm after subarachnoid hemorrhage may cause cerebral ischemia. Treatment with hemodilution, reducing blood viscosity, and hypervolemia, increasing cardiac performance and distending the vasospastic artery, are clinically established methods to improve blood flow through the vasospastic arterial bed.METHOD: Eight patients with transcranial Doppler verified vasospa
The article analyses the stormy debate in Poland caused by the publication in 2000 of Neighbors, a book written by the Polish-born American scholar Jan Gross. The book, that deals with the war-time mass murder of the Jewish population in the Polish town Jedwabne, encouraged by the Nazi Germans but perpetrated by local Poles, brought about shock and created a challenge to Polish collective memory.
Pharmacological experiments were carried out on isolated basilar arteries (BA) from the brain vasculature of guinea-pig and rat in order to characterize post-junctional serotonergic receptors mediating contraction by the use of selective agonists and antagonists. The sensitivity to 5-HT was higher, but the intrinsic activity lower, in guinea-pig compared to rat vessels. The contractile potency of
Context: The insulin tolerance test ( ITT) is the current standard diagnostic test for the diagnosis of adult GH deficiency ( GHD), but alternative tests, such as the GHRH- arginine test, have been proposed. Objective: We investigated the sensitivity and specificity of the GHRH- arginine test using ITT as the gold standard in diagnosing GHD in a group of young adults treated with cranial irradiati
Aims To investigate the role of guidelines in structuring the clinical care for adult patients with congenital heart disease (CHD), and to assess adherence to the guidelines in Europe. Methods and results A selected number of current guidelines were chosen pertaining to operative procedures, investigations, and the use of medication ('interventions'). The source for this analysis was the database
Solid-phase microextraction (SPME) with a disposable ionic liquid (IL) coating was developed for headspace extraction of benzene, toluene, ethylbenzene, and xylenes (BTEX) in paints. The SPME fiber was coated with IL prior to every extraction, then the analytes were extracted and desorbed on the injection port of gas chromatography, and finally the IL coating on the fiber was washed out with solve
Evidence-based medicine is a corner stone in treatment decision making and large randomised, clinical trials are usually designed in order-to provide highly significant results. This study was conducted in order to find out to what extend a "real life" patient population with obstructive lung disease could fit into criteria commonly used in clinical research trials. As a secondary aim of the study
This paper describes the application and evaluation of a competitive enzyme flow injection immunoassay (EFIIA) for screening of alkylphenol ethoxylate (APEO) surfactants in different water samples based on a generic immunoassay system previously developed ( see E. Burestedt, C Nistor, U. Schagerlof and J. Emneus, Anal. Chem., 2000, 72, 4171 - 4177). The detection limits for octylphenol ethoxylates
This article presents reasons for undertaking "The Comparative Study of the Prevention of Crime and Violence by Mentally Ill Persons" and reasons for decisions regarding the study design and choice of measures. A brief portrait of the forensic patients that have been recruited is also presented. Community treatment programs could offer long-term cost-effective care for offenders with major mental
It is well known that for a robotic manipulator without sensors on the end-effector, the end-effector has to follow a path in its workspace without regard to any feedback other than its joints shaft encoder or resolvers. This fact imposes severe limitations on certain tasks where an interaction between the robot and the environment is needed. However, with the help of sensors, a robot can exhibit
Danska, norska och svenska är nordiska språk med stora likheter. Danskar, norrmän och svenskar förstår varandras språk relativt väl, framförallt i skrift. Syftet med denna uppsats är att undersöka om den som lär sig ett nordiskt språk som främmande språk också kan förstå de andra språken på samma sätt som infödda nordbor. Vidare vill jag ta reda på om något av de tre språken är „bättre“ att lära s
Konkurrensen på marknaden blir tuffare och tuffare för många företag och för att vara konkurrenskraftig när det gäller kunskap, forskning och utveckling gäller det att man har en bra läromiljö för medarbetarna så att man kan höja deras kompetens och utnyttja deras fulla potential. En av åtgärderna som Organisationen har gjort, var att byta arbetssätt på utvecklingsavdelningarna. Det nya arbetssät
