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Practically all natural daytime light at the Earth’s surface originates in the Sun. The fluence rate, as well as spectral and directional distributions are modified by the gases, clouds and aerosols in the atmosphere in a way which depends on time and place, and also by vegetation, snow, and other ground-cover. A special section in this chapter is devoted to ultraviolet radiation.
Abstract is not available
Abstract is not available.
This paper reports and analyzes the author’s own experiences of implementing a “joke starting” strategy into the lecture format of a given course. The “joke starting” strategy meant that every lecture in the studied course was (jump) started with a small joke. Thus, we investigate one particular approach to consciously use humor in teaching, an area well represented in the literature. The ambition
Popular Abstract in Swedish Förändring av kroppsprotein hos cancerpatienter under behandling Bakgrund Det är välkänt att patienter med cancer ofta drabbas av nedsatt aptit, viktminskning, orkeslöshet och ämnesomsättningsrubbningar under sin sjukdom. Denna samlade symptombild kallas kakexi. Detta tillstånd minskar toleransen för olika behandlingar, som cytostatika- och strålbehandling, försämrar The purpose of this study was to investigate how total body protein and its fraction of body weight (body protein fraction) change in cancer patients during different anti-tumor treatments, and to see if these changes have any clinical significance in the form of prognostic value or correlation with disease course and tumor response. In 84 patients, 28 with lung cancer, 24 with gastrointestinal t
Popular Abstract in Swedish Inom analytisk kemi är selektivitet en viktig fråga. Att kunna urskilja ett specifikt ämne av låg koncentration i ett komplicerat prov är viktigt inom t.ex. medicin, miljöanalys och livsmedelsindustri. Naturen har under miljontals år utvecklat selektiva system. Ett exempel på ett sådant system är antikropparna i människans immunförsvar; om ett främmande ämne kommer in iThe thesis is a bioelectrochemical study of heme enzymes, mainly peroxidases and cellobiose dehydrogenases (CDH). It covers both fundamental and applied aspects, viz. studies of the direct electron transfer and kinetics of enzymes on electrodes, and the development of amperometric enzyme-based biosensors. The kinetics of the direct and mediated electron transfer of a wide range of peroxidases (bo
Using Woods-Saxon potentials and the eigenphase formalism for one-particle resonances, one-particle bound and resonant levels for neutrons as a function of quadrupole deformation are presented, which are supposed to be useful for the interpretation of spectroscopic properties of some light neutron-rich nuclei with weakly bound neutrons. Compared with Nilsson diagrams in textbooks that are construc
The present work studies the separated flow in a square channel with ribs on one wall by using the PIV method. In this study, the spacing between ribs is kept constant and the heights of rib are varied in order to investigate the influence of the pitch-to-height ratio, P/e on the flow structures. Depending on the various pitch ratios, the enclosure between ribs can be regarded as closed or open ca
In their professional practice, designers serve different roles as experts in user behaviour, taste experts and conveyors of symbolic meaning. Combining these roles, however, is not necessarily unproblematic, especially so in contexts that are incongruent with the personal preferences of the designer. In seeking to understand this challenge in designers’ professional practice, it is relevant to hi
In a laboratory study the impact of the surrounding light on alertness was study. Two types oflight sources were examined, LEDs and T5 fluorescent tubes. The illuminance level in theworking area was kept constant (500 lx), while the surrounding light was varied between 100och 350 cd/m2. Subjective ratings of the emotional status and the experience of the lightingenvironment as well as physiologica
