Wind has a profound influence on migrating birds since it inevitably will influence travel time and energy expenditure. In this thesis I investigate how migrating birds are affected by, and use winds. The studies cover the following main topics: i) the influence of wind on the decision to depart on a migratory flight, and possible energy savings by choosing to migrate in tailwinds, ii) the effect

The principles for today's international refugee policies were laid down in the years following World War II, with the creation of the UNHCR and the establishment of an international refugee convention. These years, which were the central phase in the development of a new refugee regime, are the topic. The refugee question is set in an East-West perspective. The rethoric of refugee policies is con

Popular Abstract in Swedish De fettlösliga vitaminerna upptäcktes i början av 1900 talet, och indelas i klasserna A, D, E och K. Brist på vitaminer i kroppen kan leda till svåra sjukdomar som nattblindhet, benskörhet och cancer. Även en överdos kan vara mycket allvarlig, och därför finns det bestämmelser om vilka livsmedel som ska vitaminberikas samt med hur mycket av varje vitamin. Dessutom utförSample clean-up methodologies based on supercritical fluid extraction (SFE) have been developed for determination of fat-soluble vitamins in foods. This thesis focuses on method development, stressing important issues concerning sample pre-treatment, extraction conditions and collection parameters. It was demonstrated that by using SFE followed by saponification and determination using RP-HPLC wit

This book chapter discusses Meret Oppenheim's art as a central contribution to European modernism, and provides a critique of the male dominated art history writing.

In this paper I give a short presentation of a syntactic approach to argument structure, taking a particular implementation of the minimalist framework (Chomsky (1995, 2001 and later)) as my point of departure. The proposed account allows for only 16 different argument structures, thereby reducing the syntactic variation at this level of syntax considerably. The theory also offers an explanation w

THESE EXERCISES SERVE THE PURPOSE OF TRAINING THE UNDERSTANDING OF SEVERAL BASIC CONCEPTS IN ELEMENTARY UNIVERSITY-LEVEL MECHANICS. WHEREAS MECHANICS IS OFTEN TAUGHT AS A COURSE WHERE “PEN AND PAPER” ARE THE ONLY TOOLS, THESE EXERCISES ATTEMPT TO PROVIDE KNOWLEDGE ON HOW THE BASIC THEORY WORKS, ON PRACTICAL PROBLEMS, BY USING A MODERN SIMULATION COMPUTER SOFTWARE. BY SIMULATIONS THE GENERAL PERFOR

Popular Abstract in Swedish Levande organismer, inklusive människor, har en 14C/12C-kvot som återspeglar miljön. När materialet dör slutar kroppen att fylla på 14C och kroppens 14C börjar sönderfalla till 14N. Detta gav upphov till den klassiska 14C-dateringsmetoden, vilken utvecklades av professor W.F. Libby, 1949 och gav honom Nobelpriset i kemi 1960. 14C-datering används huvudsakligen inom arkeThe testing of nuclear weapons in the atmosphere, in the middle of the 20'h century, resulted in a bomb-pulse excess of atmospheric 14C. A bomb-pulse dating method was thus developed. The latter is a method to determine the time of formation of formerly living modern (i.e. living after 1955) material , based on the 14C/ 12C ratio in it. The objective of this work was to evaluate the factors that c

Abstract is not available

Undersökningens uppläggning Enkäter skickades i maj 2005 till dem som tagit läkarexamen i Lund 2001 och 2002. Frågorna berör både medicinsk och allmän akademisk kompetens. En uppföljningsenkät gick samtidigt till dem som tagit examen 1997 och 1998 och ingått i en tidigare alumnundersökning. Avsikten med uppföljningen är att ge en bild av hur arbetsuppgifterna förändras i den tidiga delen av läkark

In this paper we show how to calibrate a camera, mounted on a robot, with respect to the intrinsic camera parameters when the so-called hand-eye transformation between the robot hand and the camera is unknown. The calibration is based directly on the spatial and temporal derivatives in an image sequence and do not need any matching and tracking of features or a reference object. The calibration is

Popular Abstract in English The catalytic and electrochemical properties of tryptophan repressor-binding protein (WrbA), pyranose dehydrogenase (PDH), cellobiose dehydrogenase (CDH) and glucose dehydrogenase (GDH) on carbon electrodes were investigated using cyclic voltammetry and flow injection amperometry to construct biosensors and biofuel cell (BFC) anodes. WrbA has a catalytic FMN-containing The catalytic and electrochemical properties of tryptophan repressor-binding protein (WrbA), pyranose dehydrogenase (PDH), cellobiose dehydrogenase (CDH) and glucose dehydrogenase (GDH) on carbon electrodes were investigated using cyclic voltammetry and flow injection amperometry to construct biosensors and biofuel cell (BFC) anodes. WrbA has a catalytic FMN-containing domain whereas both PDH and

Phased array antenna (PAA) calibration is the process of determining the PAA channel characteristics; these characteristics are used in beam forming algorithms. In "contactless" PAA calibration methods, measurements are made by a stationary probe antenna placed away from the tested antenna, and the channel characteristics are determined from the measured data. Two of these methods are the MTE and