Non-uniqueness and Non-existence in the Statistical Theory of Elastic Composites: The Correlational Approximation

I give the boundary conditions corresponding to the phenomenological model of a statistically homogeneous and isotropic elastic body, in the correlational approximation. I show that the involved strain energy density is not positive definite. By a simple ewample I show that a correctly formulated traction boundary value problem can have a unique solution, can have an infinity of solutions, or can have no solution, according to the relation existing between the geometrical dimension of the body and the correlation radius of the considered material

Role of transporters in the mechanism of paraquat resistance of horseweed (Conyza canadensis (L.) Cronq.)

In paraquat resistant biotype of C. canadensis inducible proteins are supposed to play a role in the mechanism of resistance. Here we studied the uptake and intracellular localization of Pq, the effect of selective inhibitors on the uptake and sequestration, and the Pq induced changes of gene expression in susceptible and resistant biotypes. In resistant plants Pq was found to reach the chloroplast in a short time, however, to the end of recovery period it was removed to vacuoles and stored for one month. Sequestration to vacuoles was inhibited by nitrate. Pq upregulated numerous genes in susceptible and resistant biotypes. Sequencing made the opportunity to identify 4 genes; the iron storage protein Ferritin2, a Myb transcription factor, CAT4 amino acid transporter and a xenobiotic transporter. Transporters expressed at higher levels in resistant plants as compared to susceptible ones. They are supposed to play important part in paraquat resistance

“Den ensomme helt mod magtens og storpolitikkens skamfulde forsømmelser”: Den individuelle projektion af en nations kamp i FN-embedsmand Povl Bang-Jensens minde

The Hungarian political and social discourse of the last decades often makes use of a national myth based on Hungarian history that focuses on a constant struggle for survival. The myth is built around the concept of the heroic Hungarians, who from time to time fight against a political and / or military preponderance. A narrative characteristic for the countries of East-Central and Eastern Europe has been created, which in its distinction between itself and the other concentrates on self-defence and victimhood, but at the same time emphasizes the nation’s superiority over the others. The image of the nation characterized by the uninterrupted struggle for survival becomes a schematic but effective tool in the political discourse. It is not a new narrative, but the actualization of the well-known, that finds appropriate events and personalities to disseminate the existing, traditional self-image. The paper attempts to demonstrate how the Danish United Nations official Povl Bang-Jensen and the role he played in the international politics after the Hungarian Revolution of 1956 has been used to convey this image. Based on memories, books and documentaries my goal is to discuss how individual recall of experienced events contributed to the (re)construction of Bang-Jensen’s personality. Furthermore, I try to shed light on how intertwining memories about a historical event, scientific research and history writing points to a changed perception of the scientific facts that are no longer considered objective and independent of human consciousness or actions. They describe a reality, which is influenced by consciousness and interpreted through textual formulations. The article argues that the subjective perspective constituted in the memories about Bang-Jensen creates an almost mythologized interpretation of the Danish diplomat as a symbol of freedom and morality, as well. The article was among others inspired by works of Maurice Halbwachs, Sabine Mollers, Annette Warrings and Bernard Eric Jensen on memory, historical awareness and the use of history

Egy La Tène-kori szövőház Üllő környékéről

In my study, I analyzed a weaving house of the settlement Üllő Site 5 from the Late Iron Age. Firstly, because the finds of the weaving house were not sufficient for the dating, I collected typical pottery from other features, which helped to define the settlement’s dating to LTC2–LTD1 period. Afterward, I analyzed the weaving house itself. This was a semi-subterranean rectangular house with rounded corners, with two post holes on the short sides. It had a roof construction with two posts and purlin, as well as an ascending wall. The area of the house was 4×3.2 m. The feature had a wall seat on the northwest side, which proves the house was a workshop-type pithouse. This conclusion is based on the new research of the Late Iron Age houses by Lőrinc Tímár and Zsolt Gallina. Roof construction probably was covered by a canopy or a vaulted roof, which was supported by the post in the wall seat. The weaving house’s pottery finds consisted of handmade pieces. This kind of pottery was commonly used in the Late Iron Age, its dating is not solved. I found an odd rim fragment, which differs from the finds of the age, concerning both its shape and material. I studied the weights found in the house, that probably belonged to looms. There were two separate looms in the house showing differences in their dimensions. Presumably, the first weaving loom was in the state of disassembly, when the house started to collapse. The weaving house of Üllő provides new data for the research of the Late Iron Age craftsmanship in the Carpathian Basin