Filtyp
We give approximation and online algorithms as well as data structures for some well studied problems in computational geometry. The thesis is divided into three parts. In part one, we study problems related to guarding, exploring and searching geometric environments. We show inapproximability results for guarding lines and 2-link polygons, question stated time bounds for computing shortes
Measurements of DNA ploidy can be performed either with image cytometry (ICM) or flow cytometry (FCM); both methods provide independent prognostic information in primary breast cancer. The aim of the present investigation was to compare the two methods and to relate the findings to prognosis (median follow-up 42 months). Concordance in ploidy status (diploid, tetraploid, aneuploid) was obtained in
Popular Abstract in Swedish Akut bukspottkörtelinflammation (akut pankreatit - AP) är en tämligen frekvent förekommande åkomma med en årlig incidens på 300-350/100 000 invånare i Sverige. De underliggande mekanismerna för den lokalt initierande skadan i bukspottkörteln, spridning till ett systemiskt (i hela kroppen) inflammatoriskt svar och den eventuella utvecklingen av organdysfunktion (organsviAcute pancreatitis (AP) is a common disease where underlying mechanisms for the local initiating events in the pancreas, the systemic dissemination of the inflammatory response and remote organ dysfunction still are unclear. The overall aim of the thesis was to study mechanisms of the inflammatory response in AP with special emphasis on local, systemic, and distant organ injury directed at differe
In a search for new inhibitors of the IFN-γ mediated signal transduction in HeLa S3 cells using secreted alkaline phosphatase (SEAP) as reporter gene, a novel compound, designated as S14-95 was isolated from fermentations of the imperfect fungus Penicillium sp. 14-95. The compound inhibits the IFN-γ mediated expression of the reporter gene with IC50 values of 2.5~5μg/ml (5.4~10.8μM). Furthermore t
In an investigation by the Swedish Cancer Society, an expert group described the present status, critical issues and future aspects and potentials for each of nine major areas of radiation therapy research. This report deals with interactions between chemotherapy, endocrine therapy, other anti-tumour drugs and radiation.
The optimisation of image quality vs. radiation dose is an important task in medical imaging. To obtain maximum validity of the optimisation, it must be based on clinical images. Images at different dose levels can then either be obtained by collecting patient images at the different dose levels sought to investigate-including additional exposures and permission from an ethical committee-or by man
Exemplifying a rather widespread attitude among Pauline scholars, it has recently been argued on the basis of Rom. 12 that Paul differed sharply from the Stoics in his moral teaching. The present article aims to show that such a claim does not hold if and when the sources of Roman Stoicism are taken into consideration. A comparison of Paul’s moral teaching in Rom. 12 and contemporary Stoic ethics
Hur kan det komma sig att en relativt stor andel lärare på en och samma gång är missnöjda med en rad arbetsvillkor och upplever att arbetet är meningsfullt? Varför är, med andra ord, många lärare nöjda med sin yrkesutövning som lärare samtidigt som de är missnöjda som anställda? Frågeställningarna har attackerats från flera håll med utgångspunkt från läraryrkets och skolans utveckling under de sen
The neutron-rich isotope Sb-136 has been produced following the relativistic projectile fission of U-238 in an experiment performed at the Fragment Separator at GSI, Darmstadt. Delayed gamma -ray spectroscopy of the fission products has been performed after isotope separation. A new isomeric state in Sb-136 has been populated, and its lifetime measured as T-1/2 = 565(50) ns. Realistic and empirica
De Geer moraine ridges occur in abundance in the coastal zone of northern Sweden, preferentially in areas with proglacial water depths in excess of 150 m at deglaciation. From detailed sedimentological and structural investigations in machine-dug trenches across De Geer ridges it is concluded that the moraines formed due to subglacial sediment advection to the ice margin during temporary halts in
Catheter-related deep venous thrombosis is a complication that can occur in patients receiving chemotherapy. Three such cases are described and a review of the literature is made, focusing on recent results regarding possible thrombogenic mechanisms and the high prevalence of non-symptomatic thrombosis as well as the high morbidity and mortality associated with upper extremity deep venous thrombos
A survey of transfusion-dependent thalassaemia was conducted to study epidemiology, treatment and follow-up routines as a basis for future discussions. Questionnaires were sent to 97 clinics in Sweden. Responses were submitted by 86 of the clinics, 21 of which cared for 32 patients (18 children, 14 adults; i.e.only one or a few patients per hospital). Ten of those 32 (33 procent) patients were bor
Chemical control of desert locust (DL) is carried out over large areas of land, covering a range of different landscapes and ecosystems. There are no real restrictions for spraying in or close to environmentally sensitive areas and awareness of sensitivity is not always obvious to the people involved in control. However, concern about environmental issues in connection with DL control is growing a
Popular Abstract in Swedish Cystatiner är endogena proteasinhibitorer som reglerar den proteolytiska aktiviteten hos papainlika cysteinproteaser, så som humant cathepsin B, H, K, L och S. Cystatin C, som finns i de flesta humana vävnader och vävnadsvätskor, är den starkaste hämmaren av lysosomala cysteinproteaser. Förändring i balansen mellan cysteinproteaser och cystatiner har vid flera olika canCystatins are endogenous protease inhibitors that regulate the proteolytic activities of family C1 (papain-like) cysteine proteases, such as human cathepsins B, H, K, L, and S. Cystatin C shows the fastest inhibition and the highest affinity of all cystatins towards lysosomal cysteine proteases in general and is widespread in human tissues and body fluids. Alterations in the balance between the cy
The heat requirement of a building can turn out to be greater than was calculated at the design stage. The reason for this may be that heat transport though the building envelope is greater than expected. This in turn can be due to the structure not fulfilling the design requirements in respect of windtightness and airtightness. In addition, there may be defects in the quality of the workmanship o
