Authentication theory deals with problems connected with the protection of information sent over insecure channels. This thesis concerns different problems in authentication theory. In particular, we consider unconditionally secure authentication, i.e., providing authentication protection agains an enemy equipped with unlimited computing power. Several topics in authentication theory are treated:

The electronic structure of the cuprate superconductors Bi(2)Sr(2)CaCu(2)O(8) and Bi(2)Sr(2)CuO(6) and the bismuthate superconductor Ba(0.6)K(0.4)BiO(3), as well as semiconducting Ba(0.9)K(0.1)BiO(3), have been studied by electron spectroscopy techniques. The intention has been to investigate fundamental properties of the metallic state such as the importance of strong electron correlations. In ad

The load of persistent organic pollutants (POPs) is considered high in the Baltic ecosystem. The Baltic Sea spans over 12 latitudes and the regional differences in climate affect the behavior of POPs. Therefore spatial and temporal variability of the concentrations of POPs in air and precipitation within this area has been investgated at 16 (mostly rural) stations around the Baltic Sea between 199

When the Swedish construction code in 1994 allowed wooden multi-storey buildings, this type of lightweight structures became popular due to low cost and ease of construction. A drawback in those buildings is disturbing vibrations and noise propagating in the construction, especially through the junctions - for example between floor and wall. These structures should not just meet the demands of str

Looking beyond the current debate’s preoccupation with the situations of insecurity of the second intifada and 9/11, this book reveals how targeted killing is intimately embedded in both Israeli and US statecraft and in the problematic relation of sovereign authority and lawful violence underpinning the modern state system. The book details the legal and political issues raised in targeted killing

Issues on fishing expedition in discovery and disclosure of evidence i civil litigation

Abstract is not available.

Background Although childbearing is known to protect against breast cancer, whether or not breastfeeding contributes to this protective effect is unclear. Methods Individual data from 47 epidemiological studies in 30 countries that included information on breastfeeding patterns and other aspects of childbearing were collected, checked, and analysed centrally, for 50 302 women with invasive breas

Popular Abstract in Swedish Diabetes mellitus är en kronisk sjukdom som orsakas av en oförmåga att bilda och/eller känna av insulinets effekt i vävnaderna, vilket leder till förhöjda blodsockervärden. Diabetes som debuterar i unga år och där insulinproduktionen oftast är upphävd klassas som typ 1 diabetes. Typ 2 diabetes debuterar senare i livet och här finns olika grader av insulinproduktion kvarDiabetic retinopathy is a common complication to diabetes mellitus and is still a major cause of impaired vision in the Western world. The aim of the present study was to identify medical risk factors influencing the development and progression of retinopathy in type 1 diabetic patients, and to investigate the effects of laser treatment on visual acuity and glare. Although the development of sigh