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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
This chapter focuses on lessons from the arts to qualitative research, especially, what reflection on jazz improvisation may bring to qualitative research. One lesson concerns the dynamics of different kinds of authenticity. Just as jazz improvisation can be authentic in more than one way, so can research. Another lesson concerns the dynamics of observation and interpretation. Just as jazz improvi
A concise history of libraries in Sweden in the 18th century, covering the spectrum from national and university libraries over parish and circulating libraries to private collections for instruction and pleasure, with an emphasis on their users and usefulness.
Young people with migration background in Germany are often seen as having or producing problems. In this chapter, I discuss aspects of the German dominant discourse which still constructs this society as culturally and linguistically homogenous. I confront this perspective with language-based expressions by Germans with migration experience in e.g. Rap texts or political manifestos. While it is n
Syftet med detta kapitel är att ge en någorlunda representativ bild av de olika frågeställningar och teoretiska ansatser som utmärker personlighetspsykologin idag. Kapitlet är uppdelat på två huvudavsnitt, som tar upp två olika slags ansatser inom personlighetspsykologin. I det första avsnittet behandlas den del av personlighetspsykologin som studerar avgränsade personlighetsegenskaper och hur m
This work is a continuation of a long-term spent fuel leaching and radionuclides immobilization (by iron canister) experiment under simulated near-field conditions, in deoxygenated 2 mM NaHCO3 solution with 1 Gy/h γ irradiation. The corrosion of iron canister material was investigated by electrochemical and microanalytical methods. Significant amounts of radionuclides (U, Np, Tc, Sr) were found to
