Sökresultat

Filtyp

Din sökning på "*" gav 534706 sökträffar

Trädgård - kultiverad natur?

Naturen för mig. Nutida röster och kulturella perspektiv är en bok som behandlar människors vardagliga förhållningssätt till naturen i vår egen tid. Boken handlar om naturen utifrån kulturvetenskapliga perspektiv och sätter människan i centrum. De erfarenheter, tankar och berättelser som boken bygger på, vittnar om att detta ämne för många är stort och svårgripbart. Till stor del bygger boken på

Norms in Law and Society: Towards a Definition of the Socio-Legal Concept of Norms

The aim of this paper is to present a model for creating a more coherent concept, designed to meet the demands of the multidisciplinary field of Sociology of Law. This model is built on an ontological analysis that can incorporate different perspectives. The suggested analysis is mainly founded on the Aristotelian concepts of ‘essence’ and ‘accident.’ Thus, the method is concerned with distinguish

Immunoglobulin-binding bacterial surface proteins; biomedical tools and virulence factors

Popular Abstract in Swedish Populärvetenskaplig sammanfattning Antikroppar, även kallade immunoglobuliner, är proteiner som utgör en viktig del i vårt försvar mot infektioner genom att de kan binda och neutralisera ämnen som uppfattas som främmande, t ex bakterier, virus eller produkter som produceras av dessa organismer. Antikropparna består av en antigen-bindande variabel del som binder till deMany bacteria express immunoglobulin(Ig)-binding proteins that interact with Ig in a non-immune manner. Several of these Ig-binding bacterial proteins have been well characterized and are widely used as reagents for analysis and purification of Ig's. Protein G found on group C and G streptococci has affinity for constant regions of IgG heavy chains, whereas protein L found on Peptostreptococcus ma

Heat Transfer in Liquid Film over the Surface of a Rotating Disk Subjected to Impinging Jet

This work is theoretical analyses of heat transfer across film a flowing over the surface of a rotating disk. This field has wide industrial applications in Turbomachinery, chemical, and food industries. An analytical study is developed to investigate the heat transfer characteristics in the liquid film due to jet impinging at the center of the disk. A theoretical model is based on heat balance an

Reliability-driven dynamic binding via feedback control

We are concerned with software that can self-adapt to satisfy certain reliability requirements, in spite of adverse changes affecting the environment in which it is embedded. Self-adapting software architectures are heavily based on dynamic binding. The bindings among components are dynamically set as the conditions that require a self-adaptation are discovered during the system's lifetime. By ado

An inexpensive and accurate method of measuring the force of responses in reaction time research

Together with reaction time (RT), the force with which people respond to stimuli can provide important clues about cognitive and affective processes. We discuss some of the issues surrounding the accurate measurement and interpretation of response force, and present a response key by which response force can be measured regularly and unobtrusively in RT research. The advantage of the response key

Analysis of Water Condensation and Two-phase Flow in a Channel Relevant for Plate Heat Exchangers

Water vapor condensation and two-phase flow appear in plate heat exchangers being used as condensers. Analysis of water phase change and flow dynamics is an important but complicated task due to large change in water physical/transport properties across the water liquid-vapor interface boundary. In particular, a singular-link behaviour in Navier-Stokes (N-S) equations is present due to the large s

Measured CMOS Reconfigurable Matching Network and its Switched High Quality Capacitor Building Blocks

Switched capacitors are here investigated for use in reconfigurable matching networks, particularly for DVB-H frequencies. A $0.13$ $mu$m CMOS circuit is evaluated through both simulations and measurements. Source grounded NMOS transistors are used to switch high quality metal capacitors located above metal layer 8. The quality factor and tuning range depend on frequency, switch voltage, capacitor

Tobacco smoke as a major source of endotoxin in indoor air

Mass spectrometry was used to determine the endotoxin (lipopolysaccharide, LPS) marker 3-hydroxytetradecanoic acid and 3-deoxy -D-manno-2-octulosonic acid in cigarette tobacco and smoke particles. Tobacco from cigarettes of different brands purchased in four different countries in Europe and Asia contained similar amounts of LPS. Indoor exposure to environmental tobacco smoke (ETS) in rooms of smo