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En analys av sexåringars bildspråk : Bilder av skolan

Interaction, communication and signification are fundamental to the human world. How do children use codes in their drawings, as in-struments of processing information, representing reality? I find use-ful tools in theories that focus upon the semiotic play, thought and language. The object of my study has been to analyze and describe children´s pictorial sign vehicle, in order to find the relatio

Cadmium accumulation and Salix-based phytoextraction on arable land in Sweden

Cadmium accumulation in arable soils causes concern due to possible direct environmental effects and health risks associated with exposure of humans to cadmium through agricultural products. This paper discusses the problem of cadmium accumulation in Swedish arable land, and evaluates Salix (Salix vinimalis) cultivation as a tool for addressing the problem. It is found that Salix cultivation offer

Human endogenous retrovirus family HERV-K(HML-5): Status, evolution, and reconstruction of an ancient betaretrovirus in the human genome

The human genome harbors numerous distinct families of so-called human endogenous retroviruses (HERV) which are remnants of exogenous retroviruses that entered the germ line millions of years ago. We describe here the hitherto little-characterized betaretrovirus HERV-K(HML-5) family (named HERVK22 in Repbase) in greater detail. Out of 139 proviruses, only a few loci represent full-length proviruse

Immobilization of peroxidase glycoprotein on gold electrodes modified with mixed epoxy-boronic acid monolayers

The development of bioelectronic enzyme applications requires the immobilization of active proteins onto solid or colloidal substrates such as gold. Coverage of the gold surface with alkanethiol self-assembled monolayers (SAMS) reduces nonspecific adsorption of proteins and also allows the incorporation onto the surface of ligands with affinity for complementary binding sites on native proteins. W

Crystal structures of cementitious compounds - Part 2: Calcium aluminates and calcium aluminoferrites

The crystal structures of the following binder phases are reviewed: monoclinic CaAl2O4 (CA); cubic Ca12Al14O33 (C(12)A(7)); cubic Ca3Al2O6 (C(3)A); orthorhombic Ca8.5NaAl6O18 (Na-substituted C(3)A); orthorhombic Ca2AlFeO5 (C(4)AF); orthorhombic Ca2Fe2O5 (C2F); and orthorhombic Ca4Al6O12(SO4) (C(4)A(3)(S) over bar). The atomic structures are illustrated by computer graphics; crystal data and refere

Electromagnetic energy flow near metal nanoparticles - II: Algorithms for the calculation of the light scattering of multi-spheres and photon energy transport via linear chains of Ag nanoparticles

We present a new algorithm to calculate the near-field distribution of scattered light of multiple nanospheres based on recursive order-of-scattering (OS) and the matrix inversion approaches, which avoids the divergent problem encountered in origin OS method at the resonance condition. Using this method, we investigate the light-transport properties of linear chains of Ag nanospheres. We found a m

Influence of experimental errors on the determination of flux control coefficients from transient metabolic concentrations

The influence of experimental errors on the determination of flux control coefficients from transient metabolite concentrations with the method proposed by Delgado and Liao [(1992) Biochem. J. 282, 919-927] has been investigated by using Monte Carlo simulations. The method requires least-squares fitting of the transient metabolite concentrations. Three different fitting methods have been evaluated

Towards the european strategy for particle physics: The briefing book

This document was prepared as part of the briefing material for the Workshop of the CERN Council Strategy Group, held in DESY Zeuthen from 2nd to 6th May 2006. It gives an overview of the physics issues and of the technological challenges that will shape the future of the field, and incorporates material presented and discussed during the Symposium on the European Strategy for Particle Physics, he