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The power expenditure of flapping flight in birds is characterised by a U-shaped function of speed through the air. From this relationship and the assumption of limited power available from flight muscles, it is possible to predict changes in the birds' airspeed in relation to external factors such as wind. These predictions are derived from flight mechanical theory and optimality criteria concern

Popular Abstract in Swedish En vän till mig berättade hur hon hade köpt en färgglad t-shirt vid en resa till Indien. Första gången hon hade den på sig började det att ösregna och ett par minuter senare fanns det snopet nog mer färg i de kringliggande vattenpölarna än i tyget. Lyckligtvis har de flesta färger idag bättre kvalitet än så. De färger som används inom textilindustrin är utvecklade för aConsiderable amounts of water and chemicals are used in the textile industry, and the presence of dyes in the wastewater is a problem of environmental concern. Synthetic dyes are designed to resist light, water and chemicals to improve the quality of the textiles; however, these properties also contribute to their persistence in the environment. The existence of wastewater treatment plants in conn

Popular Abstract in Swedish Beräkningar från Cancerfonden visar på att ungefär var tredje person i Sverige kommer att få en cancerdiagnos under sin livstid. Cancerceller är celler som har utvecklat speciella förmågor som gör att de har börjat dela sig ohämmat. Denna ohämmade celldelning leder till bildandet av en tumör och när tumören har nått ett visst stadie i sin utveckling så börjar den spridaAs a cancer grows it will, at a certain stage of disease progression, start spreading in the body. For several types of cancer this spreading will first occur through the lymphatic system and the first place where metastatic cell will be encountered is the first lymph node that drains the area where the tumor is located. This lymph node is defined as the sentinel lymph node (SLN). By analyzing the

Since very few products are truly lifecycle adapted, most products need supportive functions during part(s) of their lifecycle — ranging from extensive systems of primary, secondary and tertiary packages to a simple wrapping or chemical surface protection. When a package is needed, consideration is seldom given to it during the actual development of the product. See Bramklev (2004). An illustrat

Early therapeutic intervention and use of new highly efficacious treatments have improved the outcome in many patients with juvenile idiopathic arthritis (JIA), but have also led to the need for more precise methods to evaluate disease activity. In adult rheumatology, numerous studies have established the importance of magnetic resonance imaging (MRI) and ultrasonography (US), and MRI is considere

Zircon crystals from a locally charnockitized Paleoproterozoic high-K metagranite from the Kerala Khondalite Belt (KKB) of southern India have been investigated by high-spatial resolution secondary ion mass spectrometry analysis of U-Th-Pb and rare earth elements (RE), together with scanning ion imaging and scanning ion tomography (depth-profiled ion imaging). The spot analyses constrain the magma

We studied a ca 200 ha large forest site that holds an exceptionally large number of red-listed saproxylic beetles. We conducted pollen, charcoal and dendroecological analyses to reveal the long-term stand-level history of the site. We also investigated which of the red-listed saproxylic beetles recorded at the site are probably dependent on forest fires or structures that are created by fires. Po

Gangliosides are sialic acid-containing glycosphingolipids that often are present in increased amounts on tumor cells. Since the gangliosides are hydroxy-acids, they can form lactones. The lactones have been suspected to be more immunogenic than the open forms, but are in practise poor immunogens due to their ease of hydrolysis. This thesis describes the synthesis of the hydrolytically stable lact

Under de senaste decennierna har förutsättningarna på arbetsmarknaden förändrats, något som har medfört att stress och arbetsrelaterad ohälsa blivit ett stort samhällsproblem. Detta faktum medför ökade krav på arbetsgivaren i form av att skapa balans mellan krav och resurser i arbetet. Av arbetsmiljölagen framgår det att arbetsgivaren är skyldig att vidta alla åtgärder för att motverka uppkomstenOver the last few decades the conditions on the labour market have changed, something that also have contributed to the fact that stress and work-related illness have become a social problem. This actuality increases the demands for the employer when it comes to providing a work situation in balance between requirements and resources. The Work Environment Act states that the employer is obliged t

In contrast to acute lymphoblastic leukemia in children, adult cases of this disease are associated with a very poor prognosis. In order to ascertain whether the frequencies and patterns of submicroscopic changes, identifiable with single nucleotide polymorphism array analysis, differ between childhood and adult acute lymphoblastic leukemia, we performed single nucleotide polymorphism array analys