Sökresultat

Filtyp

Din sökning på "*" gav 528090 sökträffar

Förändringar, utmaningar, gränslöst lärande

Bildning som betydelsefull del i lärandet är inte alltid priorierat i utbildingssammanhang. Informellt och icke-formellt lärande erkänns sällan som något som bidrar till kunskap och färdigheter, inte ens av individerna själva. Öppna sociala nätverk skapar stora möjligheter för en ny syn på bildning och tillvaratagande av den enskildes engagemang, motivation, intresse och valmöjligheter. Förändrade

Studying Norms and Social Change in a Digital Age: Identifying and Understanding a Multidimensional Gap Problem

The fact that the debate concerning copyright in a digital society has been both intense and filled with polemic conflicts ever since the late 1990s makes it clear that it is a most complicated issue to solve, or even grasp. Basically, both the legal and societal discussion and development are explicitly dependent on a greater understanding of the on-going processes surrounding copyright. This pre

Computer simulation - a tool for optimisation of ventilator setting in critical lung disease

Popular Abstract in Swedish Respiratorbehandling är nödvändig då en patient på grund av kronisk eller akut lungsjukdom inte själv kan upprätthålla ett adekvat gasutbyte. Bakomliggande orsaker kan vara kronisk obstruktiv lungsjukdom, lunginflammation, blodförgiftning eller trauma. Respiratorbehandling kan i sig orsaka ytterligare skador på redan sjuka eller skadade lungor. Bland de faktorer som harIncreasing attention is paid to mechanical ventilation as one cause behind aggravation of lung injury. Lung protective ventilation can be achieved e.g. by minimising tidal lung collapse and re-expansion and by the use of small tidal volume allowing some degree of permissive hypercapnia. The ventilator and the sick lung comprise a very complex system. Identification of a ventilator setting that wit

Biologisk mångfald

Klimatförhållandena har stor betydelse för om en art kan ha livskraftiga populationer på en viss plats, både genom direkta effekter på organismerna, och indirekta effekter på andra arter i ekosystemet, det vill säga arter som den är beroende av, predatorer och konkurrenter. Den biologiska mångfalden är viktig för ekosystemens förmåga att klara klimatförändringar. Vårt användande av landskapet ka

Coarse-Grained Models of Ionic Solutions

Popular Abstract in English Typically, when we speak of ionic solutions we mean a salt (as solute) dissolved in some liquid (the solvent). In this thesis, we predominantly consider ionic solutions for which there is no solvent---room-temperature ionic liquids (RTILs). It follows that these liquids have a large concentration of charged particles, a property that causes them to be effective electrRoom-temperature ionic liquids (RTILs) are compounds composed entirely of ions, which are liquid at temperatures below 100 degrees Celsius. Their high ionic strength and strong coupling make them useful for a number of applications, e.g. as electrolytes in supercapacitors. These properties also make them interesting subjects for theoretical research, as the canonical theories of the electrical dou

Minimax filters for microphone arrays

Conventionally, minimax spatial/spectral filters for microphone arrays are designed by first discretizing the spatial and frequency domains into a finite number of grid points and then performing the optimization over these points. The drawback with this approach is that the response of the spatial/spectral filters in between the grid points can be poor. More recently, an approach that performs th

CFD modelling of drop formation in a liquid-liquid system

The formation of an oil drop from a single capillary in a continuous phase flowing perpendicular to the capillary opening has been studied numerically. The shear stress at the interface of the forming drop, the angular velocity inside the drop and the pressure field around the drop have been determined in a cross section of the drop formation area. The results show a maximum pressure in the contin