Universiẗat, Diss--Köln, 2005.

Tato práce analyzuje hrozby pro protokoly využívající bezkontaktní čipové karty a představuje metodu pro poloautomatické hledání zranitelností v takových protokolech pomocí model checkingu. Návrh a implementace bezpečných aplikací jsou obtížné úkoly, i když je použit bezpečný hardware. Specifikace na vysoké úrovni abstrakce může vést k různým implementacím. Je důležité používat čipovou kartu správně, nevhodná implementace protokolu může přinést zranitelnosti, i když je protokol sám o sobě bezpečný. Cílem této práce je poskytnout metodu, která může být využita vývojáři protokolů k vytvoření modelu libovolné čipové karty, se zaměřením na bezkontaktní čipové karty, k vytvoření modelu protokolu a k použití model checkingu pro nalezení útoků v tomto modelu. Útok může být následně proveden a pokud není úspěšný, model je upraven pro další běh model checkingu. Pro formální verifikaci byla použita platforma AVANTSSAR, modely jsou psány v jazyce ASLan++. Jsou poskytnuty příklady pro demonstraci použitelnosti navrhované metody. Tato metoda byla použita k nalezení slabiny bezkontaktní čipové karty Mifare DESFire. Tato práce se dále zabývá hrozbami, které není možné pokrýt navrhovanou metodou, jako jsou útoky relay.

<p>Syftet med föreliggande uppsats var att, genom litteraturstudier av C. S. Lewis Narnia-serie samt J. R. R. Tolkiens <em>Härskarringen, </em>undersöka förekomsten av kristusgestaltning i nämnda litteratur. Genom att studera nämnda verk var avsikten även att undersöka de eventuella kristna influenser som återspeglar författarnas egen tro och närmare studera de tänkbara paralleller med Bibelns Kristus som förekommer. Utifrån de analyser som görs av texterna i arbetet blir slutsatsen att även om det finns klara influenser från Bibelns Kristusgestalt kan man inte i båda böckerna se en klar kristusgestalt. När det gäller <em>Härskarringen </em>finns där inte en klart framträdande Kristus även om de kristna influenserna är många. När det gäller Narnia är de kristna influenserna tydligare och parallellerna med Kristus framträder klarare.</p>

Syftet med föreliggande uppsats var att, genom litteraturstudier av C. S. Lewis Narnia-serie samt J. R. R. Tolkiens Härskarringen, undersöka förekomsten av kristusgestaltning i nämnda litteratur. Genom att studera nämnda verk var avsikten även att undersöka de eventuella kristna influenser som återspeglar författarnas egen tro och närmare studera de tänkbara paralleller med Bibelns Kristus som förekommer. Utifrån de analyser som görs av texterna i arbetet blir slutsatsen att även om det finns klara influenser från Bibelns Kristusgestalt kan man inte i båda böckerna se en klar kristusgestalt. När det gäller Härskarringen finns där inte en klart framträdande Kristus även om de kristna influenserna är många. När det gäller Narnia är de kristna influenserna tydligare och parallellerna med Kristus framträder klarare.

The author of this study explored the works of C.S. Lewis as well as memoirs and scholarship concerning his work to illustrate his transformational leadership. Works reviewed included Lewis's fiction, such as his science fiction trilogy and his children's series, The Chronicles of Narnia, as well as his works of nonfiction, such as essays that addressed social issues. The secondary aim for the author of this study was to determine whether the transformational qualities Lewis exhibited also existed in his characters. Transformational leadership served as the conceptual framework for the descriptive explanatory qualitative design. Essentially the study analyzed the primary works of Lewis and subsequent scholarship through the lens of transformational leadership. Data collected included document review, interviews with Lewis scholars, and observations. Synthesis of the data revealed that Lewis possessed the 4 qualities of transformational leadership established by Bass (1985). Derived from a blended evaluation of scholarship, observational data, and interview responses, findings indicated that Lewis exhibited the 4 qualities of transformational leadership: Idealized influence, Inspirational Motivation, Intellectual Stimulation, and Individual Consideration. In addition, Lewis created a transformational leader in Aslan from The Chronicles of Narnia and depicted pseudotransformational leadership in both his science fiction trilogy and The Chronicles of Narnia. The author of this study explored a contextual and historical view of Lewis as a veteran of World War I and a voice of hope during World War II. During the period pseudotransformational leadership existed in the reality of Adolf Hitler and the Nazi regime and echoed in the literature of Lewis in the N.I.C.E. organization from the science fiction trilogy and Shift from The Chronicles of Narnia. Recommendations for further study encourage future scholars to expand the roster of transformational leaders to include artists and thinkers and to examine various aspects of Lewis yet needing research.

The dissertation analyses the reliefs and paintings on thirty-one different tombs in Western Anatolia erected between 600 and 450 BC, in order to illuminate the ways in which non-Greek elites were identified on their memorials. The tombs from three areas are treated: Phrygia, Hellespontine Phrygia and Lydia, where the primary language groups were Phrygian, Mysian and Lydian. There is little literary evidence for these regions, and what there is tends to focus on political developments. Descriptions of people and society are few, and tend to represent them from an outside perspective, grouping them according to cultural characteristics which differentiate them from Greeks. It is clear, however, that the regions were important, prosperous places, controlled by illustrious grandees and land marked with a relatively high proportion of monumental tombs. Of these monumental tombs, there is a relatively high number decorated with striking and articulate images. There is much to be gained from examining the images on these tombs, as ‘indigenous’ sources for how elite Western Anatolians described themselves. Previous approaches to the tombs and their images have tended to look at them individually or in smaller groups, and to concentrate on the transmission and reception of Persian and Greek culture in the Achaemenid provinces. This dissertation contributes a broader comparative study of the decorated tombs, focussing on the kinds of statuses the images represent and the cultural forms these took. By comparing the various methods of self-representation, it clarifies patterns of identities in Western Anatolia and their relationship to historical circumstances. The dissertation is divided into five chapters. An introduction outlines the scope and sample, the historical background, previous studies of the monuments, the definition of ‘identity’ and the methods of analysis adopted here. Three case study chapters present the regions and the decorated monuments within them. A concluding chapter synthesises three aspects: social identities (roles and spheres of life represented); geographic and chronological patterns; and cultural affiliations and orientations. The dissertation concludes that a tension between Persian identities and local traditions is evident in some of the tomb images, which relates to the political upheavals in Western Anatolia and the Aegean at the time of the Persian Wars.