Die Studie Johannes XXII., Avignon und Europa widmet sich mit einem innovativen Ansatz einem kontrovers diskutierten Pontifikat und ordnet hierbei anhand der in den päpstlichen Registerserien überlieferten kurialen Korrespondenz klassische Themen, wie die Auseinandersetzung zwischen Kaisertum und Papsttum, in einen europäischen Vergleichshorizont ein. Fallstudien, die von den Britischen Inseln bis zum Mittelmeer reichen, geben daneben den Mechanismen, Strukturen und Akteuren der päpstlichen Politik eine deutliche Kontur, wobei auch die grundsätzliche Rolle des Papsttums im spätmittelalterlichen Europa aus einem neuen Blickwinkel betrachtet wird. By implementing a European approach, the study offers a new view on the controversial pontificate of John XXII. Through examination of the correspondence preserved in the papal registers, classic topics like the dispute between papacy and empire can be interpreted within a broader context while case studies ranging from the British Isles to the Mediterranean reveal the mechanisms and actors of papal politics in late medieval Europe.
Sebastian Pape discusses two different scenarios for authentication. On the one hand, users cannot trust their devices and nevertheless want to be able to do secure authentication. On the other hand, users may not want to be tracked while their service provider does not want them to share their credentials. Many users may not be able to determine whether their device is trustworthy, i.e. it might contain malware. One solution is to use visual cryptography for authentication. The author generalizes this concept to human decipherable encryption schemes and establishes a relationship to CAPTCHAS. He proposes a new security model and presents the first visual encryption scheme which makes use of noise to complicate the adversary's task. To prevent service providers from keeping their users under surveillance, anonymous credentials may be used. However, sometimes it is desirable to prevent the users from sharing their credentials. The author compares existing approaches based on non-transferable anonymous credentials and proposes an approach which combines biometrics and smartcards.
Wealthy, powerful, and potentially dangerous, hedge-find managers have emerged as the stars of twenty-first century capitalism. Based on unprecedented access to the industry, More Money Than God provides the first authoritative history of hedge funds. This is the inside story of their origins in the 1960s and 1970s, their explosive battles with central banks in the 1980s and 1990s, and finally their role in the financial crisis of 2007-9. Hedge funds reward risk takers, so they tend to attract larger-than-life personalities. Jim Simons began life as a code-breaker and mathematician, co-authoring a paper on theoretical geometry that led to breakthroughs in string theory. Ken Griffin started out trading convertible bonds from his Harvard dorm room. Paul Tudor Jones happily declared that a 1929-style crash would be 'total rock-and-roll' for him. Michael Steinhardt was capable of reducing underlings to sobs. 'All I want to do is kill myself,' one said. 'Can I watch?' Steinhardt responded. A saga of riches and rich egos, this is also a history of discovery. Drawing on insights from mathematics, economics and psychology to crack the mysteries of the market, hedge funds have transformed the world, spawning new markets in exotic financial instruments and rewriting the rules of capitalism. And while major banks, brokers, home lenders, insurers and money market funds failed or were bailed out during the crisis of 2007-9, the hedge-fund industry survived the test, proving that money can be successfully managed without taxpayer safety nets. Anybody pondering fixes to the financial system could usefully start here: the future of finance lies in the history of hedge funds.
This book delivers insights for immediate action on two levels: The management perspective addresses the economic feasibility, while the legal perspective provides municipal decision-makers with FAQ-type guidelines for the swift implementation and legal applicability of rural broadband rollout solutions.
The idea of the Church as the instrument of unity had existed before Second Vatican Council; but the Council made the search for unity explicitly an imperative. From the Second Vatican Council emerged a more emphatic vision of the mission of the Church to the world in which ecumenism is no longer an option but an imperative. From the time of the Council onward, every Christian should positively respond to God's question to Cain: "Where is your brother?" (Gen. 4: 9). The ecumenical imperative is primarily the responsibility of pastoral workers. The book surveys in epochs the historical changes that has occurred in the Church up to Vatican II; reviews reception along the ages of the Church pointing to the uniqueness of Vatican II; and gives through biblical exegesis of 'conversion' a fresh understanding that will help pastoral workers to be ever conscious and ready to serve as Church's instrument of unity wherever they are. This book re-awakens the spirit of the Decree on Ecumenism (Unitatis Redintegratio), offering it to be properly received by all who pray with Christ for unity (Jn 17:21). It proposes pastoral suggestions on the practice of Ecumenism.
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