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Comparative aerodynamic performance of flapping flight in two bat species using time-resolved wake visualization.

Bats are unique among extant actively flying animals in having very flexible wings, controlled by multi-jointed fingers. This gives the potential for fine-tuned active control to optimize aerodynamic performance throughout the wingbeat and thus a more efficient flight. But how bat wing performance scales with size, morphology and ecology is not yet known. Here, we present time-resolved fluid wake

Marias medlidande: Ett bidrag till studiet av birgittinsk spiritualitet

The compassion felt by Mary for Christ when she was standing at the foot of the Cross is an important motif in late medieval piety. It becomes an object of liturgical celebration in the fifteenth century and sermons are preached on it. This paper treats the motif in some fifteenth century sermons from manuscripts once owned by the Birgittine abbey of Vadstena, Sweden. The treatment of the motif in

On the nature of the qualitative research approach

The qualitative approach to research is seen as a socially constructed heterogeneous tradition of ideas. It is difficult to argue for the existence of some set of features which are common to all qualitative methods but not to other types of research methods. Furthermore, it is unfortunate to see the qualitative approach as inherently in contrast to the quantitative approach. In fact, it may be fr

Studies of the fragmentation process in hadronic decays of Z⁰ boson

This thesis is based on the work that was done during 1992--1996 at the DELPHI detector at LEP. Its main parts are outlined below. The brief Introduction gives an overview of the science of Particle Physics, its development and contemporary status. The first chapter represents an introduction to the DELPHI detector at LEP, describing the main features of the LEP machine and the DELPHI detector a

Helicobacter pylori and Chlamydia pneumoniae in primary care- cardiovascular and gastrointestinal aspects

Popular Abstract in Swedish Helicobacter pylori och Chlamydia pneumoniae är två mycket vanliga smittämnen i den svenska befolkningen. De vanliga kliniska manifestationerna är magsår respektive luftvägsinfektioner. På senare tid har det också diskuterats huruvida de kan bana väg för sjukdomsmanifestationer även inom andra organsystem. I många fall har de studeras var för sig men betydligt mera sällHelicobacter pylori and Chlamydia pneumoniae are common infectious agents in the Swedish population, causing gastritis ulcers and respiratory infections. The metabolic syndrome is characterised by overweight, insulin resistance, hypertension, diabetes and dyslipidaemia. Sera from a patient cohort (n=531) originally examined in 1987-89 were investigated for previous infection of H. pylori and C. pn

Religion och populärkultur : från Harry Potter till Left Behind

Bokens målgrupp är universitets- och högskolestudenter såväl som allmänhet som har börjat ta del av diskussionen kring religion i populärkultur. Boken har ett religionsantropologiskt anslag och går igenom definitionsproblematik, religiösa grupperingars bruk av populärkultur och reaktion gentemot populärkultur som sprider "falsk" religion. Återkommande narrativ och hur dessa tolkas som alluderande

Heterogeneous Degradation and Recyclability of PP Studied by Imaging Chemiluminescence

Oxidative degradation is a serious threat to long-term use and recyclability of polymers. Successful recycling of polymeric quality products requires characterization of the polymer material after reprocessing and use. Lately, a growing awareness of the heterogeneous nature of degradation has developed in terms of physical spreading, non-uniform distribution of stabilizer, physical loss of stabili