Filtyp
Because of the stratospheric ozone depletion that took place during the last decades of the past century, the effects of ultraviolet radiation on plants, animals, humans and micro-organisms became intensively studied. In this chapter we describe the role of the ozone layer as a radiation shield and various molecular and organismal effects of ultraviolet radiation, with an emphasis on the UV-B band
Popular Abstract in Icelandic Landnám á jökulskerjum Plöntur hafa lengi verið taldar nauðsynlegar til að dýr geti numið land en þessi sýn er að breytast því rannsóknir hafa sýnt að smádýr nema oft land á undan plöntum. Landnám bæði plantna og dýra getur hafist um leið og nýtt land myndast en til að landnám takist þurfa nokkrir þættir að fara saman. Þau verða að komast á staðinn og þegar þangað erThe classical view of primary community assembly is that colonisation by plants is essential before invertebrates can establish. It has been recognised, however, that invertebrates can establish before plants, and that they may be important in the first steps of community assembly. Plant succession is well studied but assembly of invertebrates and how their dispersal abilities affect the community
While the effects of elevated atmospheric CO2 level on starch and sugar metabolism have been extensively studied in different plants, the effect on plant lipid metabolism concerns only a few studies and none of these are on the model plant Arabidopsis thaliana. This study of the lipid composition in seeds and leaves of A. thaliana is therefore of interest when trying to predict how the future envi
This chapter starts with a description of the optics of camera-type eyes, in which an image is projected upon a retina with cornea and lens as refracting elements. Ray tracing is explained with the human eye as an example of a terrestrial vertebrate's eye. Then the comparison is made to camera eyes of aquatic and amphibious animals, with an explanation of different kinds of aberrations, difficulti
Scholarship of Teaching and Learning (SoTL) is discussed as a strategy for institutional improvement of teaching and learning. Engagement in SoTL could be an individual enterprise focusing external networks including conference presentations and journal publications. This strategy could lead to development and improved teaching for the individual but not necessarily contribute to the developme
The base of the world economic pyramid, generally called the base of the pyramid (BoP), consists of four billion people with average per day income of four dollars. While some authors suggest a systems approach to design and develop products and services (i.e. interventions) for BoP markets, a little work has been carried out in this area. Furthermore, a framework to represent interventions in the
When a Virtual Environment (VE) is designed, decisions regarding the navigation of the viewpoint, interaction with objects, and the behavior of the VE itself are made. Each of these can affect the usability and the cognitive load on the user. A VE that had previously been constructed as a prototype tool for the assessment of brain injury has been studied to establish the consequences of such desig
Steady flow in axial one-stage turbines is assessed numerically and experimentally. The simulations are performed on coarse meshes using a standard numerical approach (3D, steady state, kε-turbulence model, wall function at solid boundaries). In order to allow for conclusions drawn from these rapid numerical studies, the approach was compared with an explicit LDA (Laser Doppler anemometry) mapping
This study considers detection of polyproline type II secondary structures from protein sequences. This difficult problem was handled with multilayer perceptron neural networks, which were found to be useful for such bioinformatics studies. Polyproline II secondary structures have not previously been tried to be predicted from sequences.
Analysis of the system of criminal procedure in Sweden in light of the proposal for the establishment of a European Public Prosecutor's Office.
The development of a common data base system for wastewater treatment operating data evaluation is discussed. Data records from wastewater treatment plants which have been converted into standard files in a common data base are used as a case study. Advanced programs for data analysis and simulation have been used to evaluate the data in the common data base. The paper discusses software standardi
Background: A polymorphism in the activating component of the nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex, neutrophil cytosolic factor 1 (NCFI), has previously been identified as a regulator of arthritis severity in mice and rats. This discovery resulted in a search for NADPH oxidase- activating substances as a potential new approach to treat autoimmune disorders such as rh
Family caregivers in cancer and palliative care often face heavy responsibilities and feel insufficiently prepared for the situation as caregivers. This study evaluates short-term and long-term effects of a psycho-educational group intervention aiming to increase preparedness for family caregiving in specialized palliative home care.
