Host race formation in Hyalesthes obsoletus (Signoret 1865)

Die Winden-Glasflügelzikade Hyalesthes obsoletus (Cixiidae, Glasflügelzikaden) nutzte in Deutschland ursprünglich die Ackerwinde Convolvulus arvensis als Wirtspflanze, allerdings nahm in den letzten zwei Dekaden die Abundanz auf der Großen Brennnessel Urtica dioica stark zu, zusammen mit der Inzidenz der Schwarzholzkrankheit Bois noir auf Weinreben. Bois noir wird durch ein Phytoplasma verursacht, das durch H. obsoletus von C. arvensis und U. dioica auf Weinreben übertragen wird. Es stellte sich daher die Frage, ob H. obsoletus Wirtsrassen entwickelt hat, die möglicherweise die Bois noir-Epidemiologie beeinflussen. In der vorliegenden Studie wurden folgende Fragestellungen bearbeitet: rn(1) Gibt es in Deutschland und Europa genetisch unterscheidbare Wirtsrassen von H. obsoletus auf den beiden Wirtspflanzen C. arvensis und U. dioica? Es wurden sieben Mikrosatellitenmarker entwickelt und etabliert, um H. obsoletus Populationen aus Deutschland und Europa genetisch zu analysieren. Es zeigte sich eine deutliche Differenzierung zwischen Populationen von beiden Wirtspflanzen in Deutschland, jedoch nicht in den historischen Ursprungsgebieten der deutschen Populationen, in der Schweiz, Italien oder Slovenien.rn(2) Wo sind die deutschen Wirtsrassen von H. obsoletus entstanden? Eine Einwanderung von südlichen, bereits an U. dioica angepassten Individuen stand einer lokalen Wirtsrassenevolution gegenüber. Die engere genetische Verwandtschaft der deutschen Population auf U. dioica zu denen auf C. arvensis, im Vergleich zu den übrigen Populationen auf U. dioica, impliziert einen lokalen Prozess im nördlichen Verbreitungsgebiet. Eine Immigration südlicher Tiere scheint nicht zur Diversifizierung beigetragen zu haben, führte aber möglicherweise einen U. dioica-spezifischen Phytoplasma-Stamm ein. Durch Wirtsrassenevolution entwickelten sich spezifische, vektorbasierte epidemiologische Kreisläufe der Schwarzholzkrankheit Bois noir. rn(3) Welche Präferenzen zeigen die beiden Wirtsrassen von H. obsoletus für die Wirtspflanzen C. arvensis und U. dioica und unterscheiden sich diese? Die Präferenz von H. obsoletus aus beiden deutschen Wirtsrassen in Bezug auf den Geruch der Wirtspflanzen wurde in einem Y-Olfaktometer untersucht, zusätzlich wurden beide Pflanzen direkt zur Wahl gestellt. Bei beiden Untersuchungen zeigte die Population von C. arvensis eine signifikante Präferenz für ihre native Wirtspflanze. Die Population von U. dioica wies dagegen keine Präferenz für den Geruch einer Wirtspflanze auf, bevorzugte im direkten Test jedoch signifikant ihre native Wirtspflanze. Dies weist darauf hin, dass die Anpassung an den „neuen“ Wirt noch nicht vollständig ist.rn

<>: per una filosofia di liberazione dell'uomo in Alberto Manzi latinoamericano

This dissertation is aimed at analysing deeply and thoroughly the most significant topics and features reflected in the Latin American literary work of Alberto Manzi. His almost thirty years of travelling and volunteering in the indigenous communities of South America formed a background of knowledge and experiences, which turned out to be crucial for the genesis of his Latin American trilogy. In the light of this, not only are ‘La luna nelle baracche’, ‘El loco’ and ‘E venne il sabato’ a speaking testimony of Manzi’s life and inner development, but they also offer a privileged perspective on the social, historical and religious situation of the people of Latin America. For a better understanding of the books, chapter one provides an extensive historical and economic commentary stretching over a century, from the collapse of the Spanish Empire to the rise of modern dictatorships in the late ‘70s, and the long democratic transition of the ‘80s. As far as the religious background is concerned, it is important to mention the influence of the liberation theology in the shaping of Manzi’s revolutionary thought. Indeed, chapter two identifies the precursors of the liberation theology, considers the effects of the Second Vatican Council on Latin America’s Catholic Church, and presents the methodology and the most powerful intuitions of the liberation theology. Finally, chapter three employs a critical analysis of Manzi’s Latin American trilogy, which focuses on his personal journal of his time in the austral continent, and Sonia and Giulia Manzi’s testimony published in a book entitled ‘Non è mai troppo tardi’. Chapter three provides an in-depth analysis of the evolution of the author’s revolutionary thought and plot dynamics; it discusses the psychological profile of the characters, the cultural features of the indigenous traditions, and the author’s urge to involve the readership in a permanent process of self-questioning.

Legality and Human Rights: Administrative Justice in Russia 1862-1917

The question of how far pre-revolutionary Russia was from the ideal of a lawful state has received little academic attention, particularly as relates to the legal regulation of relations between person, society and state within the state administration. Pravilova explored the methods of settling disputes between individuals and the administration, and the emergence of legal controls of the administration, analysed projects for the organisation of administrative justice and studied the particular nature of concepts from Russian administrative justice. The idea of an organisation of special bodies examining complaints by private persons against the actions of officials and state bureaucratic organs first appeared in the early 1860s. In the 1870s-1890s various projects for the reform of administrative justice (reorganisation of the Senate and local administrative institutions) were proposed by the Ministries of Justice and Finance, but none of these was put into practice, largely due to resistance from the bureaucracy. At the same time, however, the rapid development of private enterprise, the activities of the zemstvo and self-government produced new norms and mechanisms for the regulation of authorities and social relations. Despite the lack of institutional conditions, the Senate did consider complaints from private persons against illegal actions by administrative officials, playing a role similar to that of the supreme administrative courts in France and Germany. The spread of concepts of a 'lawful state' aroused support for a system of administrative justice and the establishment of administrative tribunals was seen as a condition of legality and a guarantee of human rights. The government was forced to understand that measures to maintain legality were vital to preserve the stability of the system of state power, but plans for liberal reforms were pushed into the background by constitutional reforms. The idea of guarantees of human rights in relations with the authorities was in contradiction with the idea of the monarchy and it was only when the Provisional Government took power in 1917 that the liberal programme of legal reforms had any chance of being put into practice. A law passed in June 1917 ordained the organisation of local administrative justice bodies, but its implementation was hampered by the war, the shortage of qualified judges and the existing absolute legal illiteracy, and the few administrative courts that were set up were soon abolished by the new Soviet authorities. Pravilova concluded that the establishment of a lawful state in pre-revolutionary Russia was prevented by a number of factors, particularly the autocratic nature of the supreme authority, which was incompatible with the idea of administrative justice as a guarantee of the rights of citizens in their relations with the state.

Historic Preservation at Nevada City, Montana

Primary emphasis this summer was placed on restoring the Richards Cabin however, the first week was spent priming and painting the interior of the Iron Rod Post Office. All the buildings within the Nevada City Outdoor Museum complex are historically significant, some more than others. Some have been used as sets on major Hollywood productions such as, "The MissouriBreaks"," Little Big Man", "Return to Lonesome Dove", "Thousand Pieces of Gold" and "The Left Handed Gun". Others have more historical significance. Some are from Yellowstone National Park. One specifically built for a County Sheriff's Department eventually accommodated a legal "triple hanging" of outlaws in 1917. One was used as a location for a Blackfeet treaty signing in 1865.