Popular Abstract in Swedish Ett biologiskt samhälle definieras av de arter som lever och interagerar på en plats. Platsen kan vara en sjö, en ö eller ett skogsparti. Om det dessutom finns flera platser som arter sprider sig mellan brukar man tala om ett metasamhälle. Idag vet man att både ekologiska och evolutionära processer påverkar metasamhällens uppbyggnad, stabilitet och funktionalitet. DenThis thesis aims to elucidate the link between abiotic and biotic effects and biogeographical contingencies, eco-evolutionary assembly processes, and community structure in a spatially explicit metacommunity framework. To this end, we used structure analysis of naturally sampled and experimentally manipulated marine bacterial communities and mathematical eco-evolutionary modeling and simulations o

LTH:s policy för kvalitetsarbete kring grund- utbildningen placerar studenternas lärande i fokus, och anger att den pedagogiska utvecklingen ska bygga på en väl- informerad dialogprocess. Enkäten CEQ används sedan hösten 2003 i stor omfattning som dataunderlag i kvalitetsarbetet. Under de första fem åren har stora mängder data samlats in, men inte särskilt många undersökningar gjorts på materialet

The chapter offers an overview of the first stages of modernism within Swedish film.

Several physics courses are given at Lund Institute of Technology. In the basic courses on ray and wave optics, holography has played an important role both in stimulating the students to curiously investigate the optical world and as an important visualisation of some obvious and interesting parts of the courses. To meet the need for basic laboratory experience, a holographic laboratory has been

The use of passive house technique has been used in a new wood framed building in Sweden. Besides the positive effect of reduced energy need, highly insulated wooden houses often have a higher risk of moisture and mould problems. The reason is that critical positions is more exposed to higher relative humidity compared to ordinary houses with thinner insulation. To investigate if an external wall

Of all the huge natural disasters that claimed the lives of thousands in Asia, the Indian Ocean tsunami in 2004 was the largest, estimated to have killed more than 230,000 people. The scope of damage brought about by this natural disaster urges focus on recovery and post-disaster reconstruction from several perspectives. Here we find an in-depth ethnography of Thailand and the role of culture and

No abstract available.

In this paper, the role of energy use is incorporated into unified growth theory. The paper presents some interesting evidence about the evolution of energy in the transition from stagnation to growth, and it subsequently develops a growth model where the observed increase in conversion efficiency in the coal energy sector is explicitly modelled and calibrated to existing data over the period 1800

Computers are increasingly used for implementing controlalgorithms in safety-critical embedded applications, such asengine control, braking control and flight surfacecontrol. Addressing the consequent coupling of control performancewith computer related errors, this paper develops a composite computerdependability/control theory methodology for analyzing the effectsdata errors have on control syst

Popular Abstract in Swedish Denna avhandling behandlar olika metoder för datakompression och speciellt metoder som är lämpliga för komprimering av digitala bilder. Avsikten med datakompressionen är att finna en representation av den ursprungliga datan (tex en bild) som upptar mindre plats på tex ett skivminne.In this thesis various topics in universal lossless source coding are discussed and analyzed. The main focus in this work is on lossless data compression of grayscale still images. Such images are, for example, frequently occurring in medical imaging. Based on theoretical considerations and empirical observations new compression algorithms are presented that are, in terms of compression performan

Detta dokument beskriver huvuddragen i relationen mellan Course Experience Questionnaire (CEQ) och högskolepedagogik. Syftet är att visa på hur resultat från CEQ kan användas för pedagogisk utveckling. Därmed behandlar detta dokument kärnan i CEQ-tolkningsprocessen inom LTH:s system för rapporterande utvärdering, själva syftet med CEQ-utvärderingarna, samt LTH:s utvärderingssystems koppling till s