Filtyp
Radiative lifetimes have been studied in neutral copper, gold, magnesium, zinc, tellurium, sulphur, selenium, bismuth and helium and in singly ionised platinum and palladium. The radiative lifetimes were determined by time-resolved spectroscopy following single, two-photon or stepwise laser excitation. The excitations required short wavelengths, obtained by frequency mixing of radiation from pulse
The study reports on the practices of illegal file sharing in Sweden during the period 2007-2012. More than 1.000 posts in response to the question “You guys who download stuff illegally, don’t you ever feel guilty?” where analyzed with regard to the respondents’ expressed senses of guilt, whether file sharing was right or wrong, if they buy media, together with dimensions of stakeholders and medi
Popular Abstract in Swedish Kring millenieskiftet 2000 skulle den nya ekonomins företag framför allt vara snabba. Men vad är då egentligen ett snabbt företag, och hur blir ett företag snabbt? Internetkonsultföretaget Framfab (Framtidsfabriken) kom under ett par år att representera just de snabba företagen i Sverige. Med sin VD Jonas Birgersson i spetsen och med hjälp av ny digital teknik skulle föFor some years the new economy in Sweden was to a high extent represented by a couple of new and fast growing companies. One of these was the Internet consultancy Framfab (Framtidsfabriken). The company became synonymous with the unusual and exciting, a new kind of business, new products and new attitudes. In national media Framfab was mostly represented by its C.E.O. Jonas Birgersson, who in ofte
Gaia is ESA’s ambitious space astrometry mission with a foreseen launch date in early 2012. Its main objective is to perform a stellar census of the 1000 Million brightest objects in our galaxy (completeness to V=20 mag) from which an astrometric catalog of micro-arcsec level accuracy will be constructed. A key element in this endeavor is the Astrometric Global Iterative Solution (AGIS) - the math
Vännerna från skoltiden har för många en stor betydelse. När den kände palestinsk-amerikanske litteraturvetaren Edward W. Said skrev sitt livs historia insåg han att just vännerna från sina tidiga skolår påverkat hans liv mer än vad andra vänner gjort. I "Utan Hemvist" berättar han också om sin mamma. När mamman talade om en person som hon uppskattade och spenderade mycket tid tillsammans med på ä
Popular Abstract in Swedish Syftet med den här avhandlingen har varit att studera association och växelverkan mellan proteiner och polymerer. Två olika tekniker har använts i dessa studier; datorsimuleringar och fördelning i polymera vattenhaltiga tvåfassystem. Vikten av att studera protein-polymer-växelverkan ligger i att flera biotekniska, och medicinska tillämpningar baserar sig just på proteiThe aim of this thesis has been to study protein-polymer interaction and association. Two different techniques were used; Monte Carlo simulations were combined with partitioning in polymeric aqueous two-phase systems. Monte Carlo simulations have been used to evaluate the hydrophobic interaction in electrolyte solution. The results showed that monovalent salt only slightly increases the hydrophob
The research presented in this thesis is focused on characterization of photophysical properties of lowest singlet excited states of carotenoids and their functions in the process of photosynthetic light harvesting. It is shown that the various light-harvesting complexes utilize different strategies to achieve efficient energy transfer from carotenoids to (bacterio)chlorophylls. Any study of energ
We present new polynomial-time approximation schemes (PTAS) for several basic minimum-cost multi-connectivity problems in geometrical graphs. We focus on low connectivity requirements. Each of our schemes either signifi- cantly improves the previously known upper time-bound or is the first PTAS for the considered problem. We provide a randomized approximation scheme for finding a biconnected graph
Analys av den nederländska filmen Black Book.
The present paper presents a rational expression for the initiation of motion for non-cohesive sediment under rough turbulent wave conditions. Previously proposed relationships for the initiation of motion are examined as well as laboratory measurements corresponding to fully rough turbulent boundary layers (which is normally the case under prototype conditions). By combining the modified Shields
