Fåglarnas förmåga att flyga över extremt långa sträckor utan att hamna vilse harförvånat människor i århundraden. Det är känt att djur kan använda solens ellerstjärnornas läge, landmärken och jordens magnetfält som informationskälla förorientering, det vill säga de kan använda källan för att få kompassinformation.Eftersom magnetfältet är närvarande överallt på planeten kan magnetiskkompassinformatIt is well known that animals can use a wide variety of information sources to help them orient and navigate asthey move over short or long distances. Birds can rely on information from the sun, the skylight polarizationpattern, the stars, landmarks and the Earth’s magnetic field for orientation and navigation. However, despite thebehavioural evidence supporting the use of the magnetic field as an

Atomic data, such as wavelengths, spectroscopic labels, broadening parameters and transition rates, are necessary for many applications, especially in plasma diagnostics, and for interpreting the spectra of distant astrophysical objects. The experiment with its limited resources is unlikely to ever be able to provide a complete dataset on any atomic system. Instead, the bulk of the data must be ca

Background: As much as 40–50% of children are expected to sustain fractures during growth. A childhood fracture is alsoassociated with high risk of fractures in adult life. Previous research has shown that fracture incidence has not been stable andsome studies suggest that this has also continued during recent decades.Aims: The aim of this thesis was therefore to describe fracture epidemiology and

Rapport från European Labour History Networks konferens 2–4 november 2017.

Hyperspectral imaging (HSI) and classification are established methods that are being applied in new ways to the analysis of nanoscale materials in a variety of matrices. Typically, enhanced darkfield microscopy (EDFM)-based HSI data (also known as image datacubes) are collected in the wavelength range of 400-1000 nm for each pixel in a datacube. Utilising different spectral library (SL) creation

Female birds transfer maternally derived antibodies (matAb) to their nestlings, via the egg yolk. These antibodies are thought to provide passive protection, and allow nestlings to avoid the costs associated with mounting an innate immune response. To test whether there is an energetic benefit to nestlings from receiving matAb, we challenged adult female tree swallows (Tachycineta bicolor) prior t

New definition of and diagnostic criteria for sepsis – Swedish use of Sepsis-3. A working group representing the Swedish Society for Infectious Diseases, the Swedish Society for Anaesthesiology and Intensive Care, the Swedish Society for Emergency Medicine, and the Swedish Intensive Care Registry have reached consensus on how to adopt the new sepsis definition, Sepsis-3, in Sweden. The recommendat

In this paper, computation fluid dynamics (CFD) simulations are employed to describe the effect of flow parameters on the formation of soot and NOx in a heavy duty engine under low load and high load. The complexity of diesel combustion, specially when soot, NOx and other emissions are of interest, requires using a detailed chemical mechanism to have a correct estimation of temperature and species

Introduction: The ε4 allele of the apolipoprotein E (APOE) gene is a prominent risk factor for Alzheimer's disease (AD), but its implication in other dementias is less well studied. Methods: We used a data set on 2858 subjects (1098 AD, 260 vascular dementia [VaD], 145 mixed AD and VaD, 90 other dementia diagnoses, and 1265 controls) to examine the association of APOE polymorphisms with clinical d

In order to meet the requirements in the stringent emission regulations, more and more research work has been focused on homogeneous charge compression ignition (HCCI) and partially premixed combustion (PPC) or partially premixed compression ignition (PCCI) as they have the potential to produce low NOx and soot emissions without adverse effects on engine efficiency. The mixture formation and charg

Small closely-coupled post injections of fuel in diesel engines are known to reduce engine-out soot emissions, but the relative roles of various underlying in-cylinder mechanisms have not been established. Furthermore, the efficacy of soot reduction is not universal, and depends in unclear ways on operating conditions and injection schedule, among other factors. Consequently, designing engine hard

Background: Pain from various locations in the body and mental illness are common and the comorbidity between the two is well-known although the temporal relationship remains to be determined. Our aim was to follow patients over time to study if pain (here dorsalgia/abdominal pain) or fibromyalgia lead to an increased risk of developing mental illness (here depression/anxiety) and/or the reverse,

Although predation is commonly thought to exert the strongest selective pressure on coloration in aposematic species, sexual selection may also influence coloration. Specifically, polymorphism in aposematic species cannot be explained by natural selection alone. Males of the aposematic wood tiger moth (Arctia plantaginis) are polymorphic for hindwing coloration throughout most of their range. In S

We present a dual-wavelength polarimetric measurement method to distinguish species and sexes of disease transmitting mosquitoes in flight. By measuring co- and de-polarized backscattered light at 808 and 1550nm, the degree of linear polarization, wingbeat frequency, reflectance, spectral ratio and glossiness of mosquitoes can be retrieved. Body and wing contributions to these signals can be separ

This thesis is concerned with refugee status determination (RSD) in the context of ‘natural’ disasters and climate change. Considering evidence that the legal predicament of people who seek recognition of refugee status in this connection has been inconsistently addressed by judicial bodies in leading refugee law jurisdictions, and identifying theoretical as well as doctrinal impediments to a cleaThis thesis is concerned with refugee status determination (RSD) in the context of ‘natural’ disasters and climate change. Considering evidence that the legal predicament of people who seek recognition of refugee status in this connection has been inconsistently addressed by judicial bodies in leading refugee law jurisdictions, and identifying theoretical as well as doctrinal impediments to a clea

This paper reports on a rare case study of Australian university extension in rural tourism enterprise development. The case primarily draws on a review of 89 participant evaluation surveys, supplemented by document review and program manager interview. Findings highlight the importance of program adaptation to client needs, noting particular benefits of personal delivery methods, especially works

The influence of the ignition quality of diesel-and gasoline-like fuels on the lift-off length of the jet were investigated in an optical heavy duty engine. The engine was operated at a load of 22 bar IMEPg and 1200 rpm. A production type injector with standard holes were used. The lift-off length was recorded with high speed video Different injection pressures and inlet temperatures were used to