919 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
LeProT1, a Transporter for Proline, Glycine Betaine, and γ-Amino Butyric Acid in Tomato Pollen
No full textDuring maturation, pollen undergoes a period of dehydration accompanied by the accumulation of compatible solutes.Solute import across the pollen plasma membrane, which occurs via proteinaceous transporters, is required to support pollen development and also for subsequent germination and pollen tube growth. Analysis of the free amino acid composition of various tissues in tomato revealed that the proline content in flowers was 60 times higher than in any other organ analyzed. Within the floral organs, proline was confined predominantly to pollen, where it represented >70 of total free amino acids. Uptake experiments demonstrated that mature as well as germinated pollen rapidly take up proline. To identify proline transporters in tomato pollen, we isolated genes homologous to Arabidopsis proline transporters. LeProT1 was specifically expressed both in mature and germinating pollen, as demonstrated by RNA in situ hybridization. Expression in a yeast mutant demonstrated that LeProT1 transports proline and γ-amino butyric acid with low affinity and glycine betaine with high affinity. Direct uptake and competition studies demonstrate that LeProT1 constitutes a general transporter for compatible solutes
Harald Sigurdsson and the Russo-Byzantine War of 1043
Get PDFThe 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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