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Background: Flat and depressed colorectal tumours are common in Japan but are very rare or non-existent in Western countries. Aims: To study the occurrence of flat colorectal tumours in a southern Swedish population. Methods: In this prospective study, 371 consecutive European patients were examined by high resolution video colonoscopy combined with chromoendoscopy. The nature of the lesions was

Landfilling of organic waste is prohibited in Sweden. Modern Swedish landfills differ from landfills containing municipal solid waste rich in organic matter. As a first step to understanding long-term leaching from modern landfills, a leaching test was performed. The leaching of heavy metals was small compared to the total contents. At a liquid to solid ratio of 10 more than 99 % of most heavy met

This work attempts to investigate a long-standing tradition within the history of aesthetics according to which the function of pictorial representation consists, or ought to consist, of the rendering of general or idealized types rather than particulars. Proponents of this view may be found in various versions from antiquity to the present. The second chapter of this work gives a historical overv

Abstract is not available

Laborationer är ett frekvent återkommande inslag i kurserna vid Institutionen för Regerteknik. Laborationerna tar mycket resurser i anspråk, och det är därför viktigt att skapa förutsättningar för att studenterna skall få ut så mycket som möjligt av dem. Studenterna förväntas inför varje laboration läsa på relevanta delar av kursmaterialet, samt i vissa fall även lösa några förberedelseuppgifter.

This paper describes a project course that focuses on all the different stages in an ASIC design flow. The project starts at algorithm level, followed by architecture selection, netlist generation, down to physical layout, fabrication, and finally verification. The scope of the project, implementing a complete MP3 decoder in VHDL and sending it for fabrication, motivates the students to work hard

Performance demands put on combustion engines are ever increasing, e.g. demands on emissions and fuel consumption. The increased demands together with new combustion concepts increase the need for feedback engine and combustion control. Mathematical models are considered important in order to implement high performance feedback control, as well as to perform diagnostic functions in vehicles. Vario

In this paper the entropy of the joint distributions of vertex degrees and vertex degree frequencies of random hypertrees and in particular random trees are studied. Due to the relationship between random hypertrees and random allocations of particles into cells, the entropy of occupancy distributions in the case where the number of particles does not exceed the number of urns is also established.

Abstract is not available

Popular Abstract in Swedish Kliniska och experimentella studier av nickelallergi Nickelallergi är vanligt, särskilt hos kvinnor. Nickelallergi leder ofta till periodiskt eller kroniskt eksem, främst på händerna. Dessa eksem kan vara svårläkta och leda till långa sjukskrivningsperioder. Nickel finns överallt i omgivningen och det går inte att helt undvika exposition för denna metall. Syftet med dKliniska och experimentella studier av nickelallergi Nickelallergi är vanligt, särskilt hos kvinnor. Nickelallergi leder ofta till periodiskt eller kroniskt eksem, främst på händerna. Dessa eksem kan vara svårläkta och leda till långa sjukskrivningsperioder. Nickel finns överallt i omgivningen och det går inte att helt undvika exposition för denna metall. Clinical and experimental studies in nic

It is considered self-evident that chemical interactions are a component of competition in terrestrial systems, but they are largely unknown in aquatic systems. In this review, we propose that chemical interactions, specifically allelopathy, are an important part of phytoplankton competition. Allelopathy, as defined here, applies only to the inhibitory effects of secondary metabolites produced by