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Radio-telemetry observations of the first 650 km of the migration of Bar-tailed Godwits Limosa lapponica from the Wadden Sea to the Russian Arctic
In 1999 and 2000, 45 Bar-tailed Godwits Limosa lapponica were supplied with radio-transmitters during spring staging on the island Texel in the western Wadden Sea. With the use of Automatic Radio Tracking Stations (ARTS) on Texel and in south Sweden, and hand-held receivers on Texel, it was possible to follow the later part of the stopover period on Texel for 34 birds (76%) and the passage over so
Catalytic Reduction of Nitrogen Oxides, 1. The reduction of NO
High throughput processing of particulate-containing samples using supermacroporous elastic monoliths in microtiter (multiwell) plate format
Two steps in parallel processing of multiple biosamples, namely, sample clarification and capture of the target protein, were integrated and combined with the direct assay of captured protein using a newly developed microtiter (96-well) plate system based on the monoliths of hydrophilic elastic supermacroporous material, cryogel. Cryogel monoliths have pore size large enough for microbial and mamm
Some medical and biological applications of ultrafast lasers
Ultrafast lasers are finding many applications in medicine and biology. Pulses from such systems can be used directly or after non-linear modification. Direct utilisation includes time-resolved fluorescence spectroscopy and imaging. Such studies can be performed for tissue diagnosis in the field of malignant diseases as well as in the cardiovascular sector. Two-photon induced fluorescence provides
Microglia-derived tumor necrosis factor-alpha exaggerates death of newborn hippocampal progenitor cells in vitro.
Design and validation of a universal 6D seam-tracking system in robotic welding using arc sensing
This paper presents the design and validation of a novel and universal 6D seam-tracking system that reduces the need for accurate robot trajectory programming and geometrical databases in robotic arc welding. Such sensor-driven motion control together with adaptive control of the welding process is the foundation for increased flexibility and autonomous behavior of robotic and manufacturing system
Transient Electromagnetic Waves in Nonlinear Media
Popular Abstract in Swedish Denna avhandling behandlar hur elektromagnetiska vågor utbreder sig i olika material. Vanligtvis antar man i elektromagnetiska problem att materialen är linjära, det vill säga om man vet att man får en viss utsignal från materialet vid en given insignal, så förväntar man sig att få två gånger så stor utsignal om man fördubblar insignalen. I avhandlingen försöker vi klarThis thesis is concerned with the propagation of transient electromagnetic waves in nonlinear media. It consists of a General Introduction and five scientific papers. The General Introduction gives a broad overview of nonlinear electromagnetic phenomena. The emphasis is on the representation of the constitutive functional modeling the material's response to electromagnetic excitation, and the met
Radiotherapy techniques in current use in Sweden.
A systematic assessment of radiotherapy for cancer was conducted by The Swedish Council on Technology Assessment in Health Care (SBU) in 2001. The assessment included a review of radiotherapy techniques in current use in Sweden. The following conclusions were drawn: Radiotherapy demands adequate knowledge of diagnostic methods, anatomy, cancer biology and of the physical and biological properties
Adsorption of cationic, anionic and hydrophobically modifie polyacrylamides on silica surfaces
The adsorption of modified polyacrylamides (PAM) at the silica surface has been studied by ellipsometry. To study the influence of the type of modification of the polyacrylamide on the adsorption behaviour, we have used cationic, anionic and hydrophobically modified polyacrylamides with varying charge density and degree of hydrophobisation. The adsorbed amount and adsorbed layer thickness were obt
Demographic data on prostitutes from Bulgaria--a recruitment country for international (migratory) prostitutes
The study was aimed at investigating the conditions and circumstances for the recruitment of prostitutes, as well as their reproductive history, working conditions, knowledge of and attitudes to sexually transmitted diseases (STDs), and use of prophylactic antibiotic therapy of these diseases. Two hundred prostitutes were investigated by in-depth interviews at STD clinics, private practices and ho
Simulering av adaptiv fartygsstyrning med Kalmanfilter
Fältsjukorna och krigen i Skåne
Utgående från Carl von Linnés skrift ”Hantverkarnas sjukdomar (Morbi artificium)”, 1765, diskuteras 1600- och 1700-talets syn på fältsjukan, vad som ansågs vara dess orsaker och hur den yttrade sig i samband med de olika krigen i Skåne med omnejd. Slutligen ett antal kontrafak-tiska funderingar utmynnande i frågan vilket som har be-tytt mest i krigshistorien – slagen eller fältsjukorna.
Animal deoxyribonucleoside kinases: forward and retrograde evolution of their substrate specificity
Abstract Deoxyribonucleoside kinases, which catalyse the phosphorylation of deoxyribonucleosides, are present in several copies in most multicellular organisms and therefore represent an excellent model to study gene duplication and specialisation of the duplicated copies through partitioning of substrate specificity. Recent studies suggest that in the animal lineage one of the progenitor kinases,
CATCH: decision support for stakeholders in catchment areas
Policy proposals for the management of water resources need to take into account two emerging themes: public involvement in the development of resource use policy and water management on a catchment level. The CATCH-model, a decision support system for catchment-based water management, builds on the use of ‘discourse and deliberation’ within stakeholder groups to define relevant socio-economic par
The influence of patient-prosthesis mismatch on in-hospital complications and early mortality after aortic valve replacement
Background and aim of the study: The study aim was to analyze the relationship between patient-prosthesis mismatch (PPM) and in-hospital complications and mortality after aortic valve replacement (AVR). Methods: AVR was performed in 1,819 patients between January 1996 and July 2006. Follow up investigations were performed after a mean of 4.3 years (range: 0 days to 10.6 years). Univariate and mult
Outcome 1 year after aneurysmal subarachnoid hemorrhage: relation between cognitive performance and neuroimaging
Objective - To assess the cognitive impairment and the association between neuropsychological measures and neuroimaging 1 year after aneurysmal subarachnoid hemorrhage (SAH). Method - Forty-two patients were examined clinically according to Glasgow Outcome Scale (GOS). Computed tomography (CT), single photon emission computed tomography (SPECT) and neuropsychological examination were performed. Re
Bilateral Wilms' tumor
During a 16-year period, 49 children were treated for Wilms' tumor (WT); 7 were bilateral, 5 synchronous and 2 metachronous. The age at primary diagnosis was 6 months to 5 years (mean 2.4 years). All but 1 child received preoperative chemotherapy with tumor reduction. Unilateral nephrectomy was performed in 2 metachronous cases. In 3 synchronous WTs, the tumor was enucleated in 5 kidneys and a hem
Clinical diagnosis of carpal tunnel syndrome - Reply
Gas Diffusion Through Sheets of Fibrous Porous Media
Using a cell model to describe a fibrous porous medium theoretical expressions ale deduced relating effective gas diffusivity to the volume fraction of the fibres. Cylindrical as well as band-shaped fibres are studied. The new models, which are based on solutions to the diffusion equation, agree well with existing correlations. The models are compared with experimental data for water vapour diffus
