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Theory predicts that trophic interactions can produce cyclic dynamics of microtine rodents, but that in addition, social interactions are necessary to create the cyclicity. We tested the induced defence hypothesis as a component driving multiannual cycles by analyzing data on Siberian lemming (Lemmus sibiricus Kerr) populations and the levels of trypsin inhibitors (TI) and free proteins (SPP) in t
Popular Abstract in Swedish Mögel i byggnader är ett vanligt problem som kan orsaka en dålig innemiljö och påverka hälsan hos de personer som vistas i byggnaden. Kostnaderna för att åtgärda problemen kan vara omfattande. Att redan vid planeringsstadiet av en byggnad ta hänsyn till risker för mögelväxt kan leda till minskat antal mögelskador i framtiden och ett mer hållbart byggande. Mögelväxt är The susceptibility to mould growth varies between building materials. The factors that most affect mould growth, the relative humidity (RH) and temperature also vary in different parts of buildings. One way of preventing the growth of mould in buildings is therefore to choose building materials that can withstand the expected conditions. It is thus crucial that data are available to allow the corr
Telomere length has been associated with risk of many cancers, but results are inconsistent. Seven single nucleotide polymorphisms (SNPs) previously associated with mean leukocyte telomere length were either genotyped or well-imputed in 11 108 case patients and 13 933 control patients from Europe, Israel, the United States and Australia, four of the seven SNPs reached a P value under .05 (two-side
Two preferential attachment-type graph models which allow for dynamic addition/deletion of edges/vertices are considered. The focus of this paper is on the limiting expected degree of a fixed vertex. For both models a phase transition is seen to occur, i.e. if the probability with which edges are deleted is below a model-specific threshold value, the limiting expected degree is infinite, but if th
The process of penetration of cobalt atoms through the h-BN nanomesh on Rh(111) is investigated with both spectroscopic and microscopic techniques. It is discovered that oxygen coadsorption can drastically modify the physical properties and behavior of the deposited Co clusters upon postannealing. In the absence of oxygen, Co forms small nanoparticles in the pores (bonding parts) of the h-BN nanom
Stripping gas is generally used to improve hydrogen yields in fermentations. Since CO2 is relatively easy to separate from hydrogen it could be an interesting stripping gas. However, a higher partial CO2 pressure is accompanied with an increased CO2 uptake in the liquid, where it hydrolyses and induces an increased requirement of NaOH to maintain the pH. This enhances the osmotic pressure in the c
Popular Abstract in Swedish Vad har Nobelpristagaren i medicin 2011, huvudpersonen i Dirty Dancing, en av världens främsta tenorer och grundaren av Apple gemensamt? De drabbades alla av olika typer av bukspottkörtelcancer. Bukspottkörtelcancer är en av våra värsta cancerformer. Den drabbar årligen ca 1000 personer och 5-årsöverlevnaden är lägre än 5%. Den enda chansen till bot är via kirurgi, men Pancreatic cancer is the fourth cause of cancer-related death with a 5-year survival rate less than 5%. Two of the risk factors are chronic pancreatitis and type 2 diabetes (T2D), which are believed to promote the tumour progression. Pancreatic cancer and its tumour microenvironment is characterised by a dense stroma, immune cell infiltration and poor vascularisation. This creates a favourable env
During pregnancy, the uterine tissues must go through a major transformation to be able to first hold the growing fetus and then, at term, expel it through the opened birth canal (cervix). It is a requirement for successful labor that there is adequate cervical softening combined with effective myometrial contractions. This is accomplished by an extensive remodeling of the extracellular matrix in
we present results that provide fundamental insights on how to experimentally tailor the planar defect density and even the crystal structure in III-V metal-particle-seeded nanowires, where zinc blende is the stable bulk crystal structure. We have grown GaP nanowires with metal-organic vapor-phase epitaxy under different conditions: pulsing of the Ga source, and Continuous growth with and without
European energy policy aims to shift the energy market towards an increased focus on energy services based on end-user needs. This requires a close understanding of the role of end-users and their needs and practices. Based on a European project called CHANGING BEHAVIOUR, we examine the interaction between energy users and energy efficiency practitioners. Using previous cases and our own pilots as
Using constant-effort catch data, causes of annual variation in the timing of migration of Curlew Sandpipers (Calidris ferruginea) migrating through Ottenby, Sweden, as well as the trend in timing of migration from 1946-2005, was investigated. Variation in the timing of autumn migration of adult and juvenile Curlew Sandpipers was influenced by breeding success connected to predation pressure on th
The development and assessment of spectrum management methods for the copper access network are usually conducted under the assumption of accurate channel information. Acquiring such information implies, in practice, estimation of the crosstalk coupling functions between the twisted-pair lines in the access network. This type of estimation is not supported or required by current digital subscriber
Popular Abstract in Swedish MHC upptäcktes för 60 år sedan då George Snell konstaterade att möss som var genetiskt lika inte stötte bort transplanterad hud medan genetiskt olika möss gjorde det. Men det var inte förrän långt senare som man insåg vilken roll som MHC spelar i immunförsvaret hos alla vertebrater. Sedan ett par decennier tillbaka är detta ett välstuderat område speciellt hos människanIn birds the major histocompatibility complex (MHC) organization differs both among and within orders. Galliformes often have simple arrangements with few transcribed MHC genes whilst many songbirds (Passeriformes) have a complex arrangement with many MHC genes and also presence of pseudo-genes. In this thesis I have partly characterized MHC class I in house sparrows (Passer domesticus), sequencin
Psychological disability caused by stress is likely to affect cognitive and emotional functions, such as memory, attention, concentration, and decision making. These functions are essential in a train driver’s work, who is responsible for his or her own and others’ safety, and for this purpose requires optimal work capacity. Eighteen train drivers, 40 – 56 years old, most of them with long work ex
This article develops ideas presented in a volume to be published by T&T Clark/Continuum, i.e., it traces the extraordinary reception history of Hebrews 8:13, from its original apocalyptical setting to how it is currently used in apologetical contexts.
Popular Abstract in Swedish SVENSK SAMMANFATTNING Den kliniska effekten av läkemedel som administreras till näsa eller lunga beror på läkemedlets egenskaper och på dess lokala deposition. Depositionsstudier är därför värdefulla för att kunna karakterisera olika beredningar. Depositionen påverkas av partiklarnas storlek och hastighet, genom att stora partiklar med hög hastighet ger upphov till en hThe local deposition, pharmacokinetics, and systemic activity of inhaled and intranasal glucocorticosteroids in different formulations and devices(ICSs) has been investigated. After nasal administration of the ICS budesonide (Bud), the systemic availability (F) was found to be significantly higher from an aqueous pump spray and from the powder inhaler Turbuhaler, than from a pressurized metered do
