923 research outputs found
Applied algebra and number theory: essays in honour of Harald Niederreiter on the occasion of his 70th birthday
No full text"Harald Niederreiter's pioneering research in the field of applied algebra and number theory has led to important and substantial breakthroughs in many areas, including finite fields and their application areas as coding theory and cryptography as well as uniform distribution and quasi-Monte Carlo methods. He is author of more than 350 research papers and 10 books"-
2. Networks, states and empires in the Baltic Region
No full textMain author Kristian Gerner. Harald Runblom author of boxes on The Vikings and The Hansa.</p
Vocal culture and social stability in resident killer whales (Orcinus orca)
No full textThe killer whale (Orcinus orca) is one of the few species for which vocal culture is actively involved in the development and maintenance of the social organizations of populations. In particular, the social structure of one form of killer whales, called residents, is a good example of this involvement. Resident societies are characterized by associations of groups with highly stable membership, which allow an in-depth examination of the association between vocal culture and the nested social hierarchy of that population. Resident killer whales live in small populations where inbreeding is a threat to their genetic diversity. Genetic and cultural evolution may be closely linked in killer whales, as has been proposed for a number of other cetaceans with matrilineal social structure. To test for a possible link between genetic and cultural evolution in killer whales, I investigated vocal similarities and differences among mixing and non-mixing resident groups and between two ecotypes, residents and transients. First, I examined whether clans exist among resident killer whales in Southern Alaska. Vocal clans had been previously identified in British Columbia but not in Alaska. Two acoustically distinct clans were recognized, each of which was monomorphic for a different mitochondrial D-loop haplotype based on results of a separate genetic study. Thus, acoustic similarities within these cultural groups reflect common matrilineal ancestry, which suggests that clan-based social structure is a fixed characteristic of resident killer whales. Second, I examined the similarity of vocal repertoires between residents and transients, and among clans and communities within residents. Call type similarity does not exist above the clan level. To investigate vocal similarity above the clan level, I split calls into syllables, and compared their distribution among population levels. Structural variation of upper frequency syllables characterized vocal variation among clans of the same community, while usage of distinct lower frequency syllables reflected divisions among communities and between residents and transients. Third, I examined syntax, the ordered arrangement of syllables, among clans of resident communities. I found that vertical transmission of syllable order in matrilines is important for the distinctiveness of call type repertoires and leads to clan-specific syntax rules. Previous work has shown that mating mainly takes place between clans. Because syntax similarity appears to be negatively correlated with sociality among clans, resident killer whales may use syntax variation to choose mates with low levels of genetic relatedness. The link between vocal culture and social structure likely influences mate choice in resident killer whales. This link leads to gene-culture co-evolution in killer whales and makes them excellent candidates for studies of cultural taxonomy.Science, Faculty ofZoology, Department ofGraduat
Harald Sigurdsson and the Russo-Byzantine War of 1043
No full textThe present article analyzes Kekaumenos’ commentary on the service of Harald Sigurdsson in the Byzantine army. Special attention is given to the composition of Consilia et Narrationes and the historiographic perception of this text. It then discusses Kekaumenos’ commentary in light of Harald’s adventures in the Haralds saga Siguðarsonar and the story about the attacks of Rus’ in the Byzantine literature. The author attempts to show that Constantine IX Monomachos tried to leave the large groups of mercenaries in Constantinople. Furthermore, the emperor’s attitude to Harald and his warriors was related to the events of Russo-Byzantine war in 1043. Constantine IX Monomachos dispersed these mercenaries into the themes. John Scylitzes wrote that the emperor put a guard over them to prevent them from inciting a rebellion. These arrests could explain Harald’s mysterious detention in the reign of Constantine IX Monomachos. It is possible to conclude that Harald’s detention was caused by the Russo-Byzantine war in 1043
The fundamental constants: a mystery of physics
No full textThe speed of light, the fine structure constant, and Newton's constant of gravity — these are just three among the many physical constants that define our picture of the world. Where do they come from? Are they constant in time and across space? In this book, physicist and author Harald Fritzsch invites the reader to explore the mystery of the fundamental constants of physics in the company of Isaac Newton, Albert Einstein, and a modern-day physicis
Von der Sorge und Sorglosigkeit : zu Gemeinsamkeiten von Pflege und Tourismus
No full textDieser Beitrag zum Denkanstoß 17 „Zukunft der Pflege“ ergänzt die Beiträge des Denkanstoßes um weitere Aspekte, die nicht in dem Heft berücksichtigt werden konnten. Harald Pechlaner, Giulia Isetti und Michael de Rachewitz erläutern in ihrem Beitrag die Gemeinsamkeiten zwischen den Konzepten von Gastfreundschaft und Pflege (cura)
Menyikapi Keontentikan Hadis Dalam Perspektif Harald Motzki (Studi Isnad Cum Matan Harald Motzki): Id
No full textCurrently, it is still being debated by orientalists about the truth of hadith as a source of Islamic history that is no longer authentically derived from the prophet, as well as the views and thoughts of orientalists in studying hadith such as Ignaz Goldziher and Joseph Schacht which had a great influence on western scientists. The purpose of this study is to repeat the hadith criticism that has been tested by classical hadith scholars that most of the hadiths are not fake as some orientalists understand, the method used is the descriptive analysis of isnad cum matn, in this study the author conducted research by contemporary orientalist Harald Motdzi who broke the previous orientalist hadith critique by proving that from the historical sanad and matn hadith in the book of Musannaf Abd Razaq as-San\u27ani, this study proves that most of the traditions that are sources of law and history are authentic from the Prophet
Knowledge and time
No full textThis is a unique volume by a unique scientist, which combines conceptual, formal, and engineering approaches in a way that is rarely seen. Its core is the relation between ways of learning and knowing on the one hand and different modes of time on the other. Partial Boolean logic and the associated notion of complementarity are used to express this relation, and mathematical tools of fundamental physics are used to formalize it. Along the way many central philosophical problems are touched and addressed, above all the mind-body problem. Completed only shortly before the death of the author, the text has been edited and annotated by the author's close collaborator Harald Atmanspacher
Nils-Aslak Valkeapää: Indigenous Voice and Multimedia Artist
No full text Nils-Aslak Valkeapää (1943–2001) was the greatest Sámi multimedia artist. He made his debut as an author in 1971 and is so far the only Sámi who has been awarded the prestigious Nordic Council's literature prize, for his book of poetry and old photographs Beaivi, áhčážan (1989) (The Sun, My Father [1997]). In this article Harald Gaski provides an analysis of two of Valkeapää's most renowned pieces of lyrical writing. Both are long-poems; the first one is a tribute to indigenous peoples’ values and philosophy while the other one is only available in its Sámi original and thus a linguistic and cultural manifestation. It is a challenge, therefore, for the author of this essay to explicate for a foreign reader why and how the poem represents a migrating reindeer herd and why the content of both poems is relevant and important for indigenous peoples today. </jats:p
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