During fracture of membranes loading often produces buckles above and below the crack surface. This changes the stress state surrounding the crack-tip and stresses in the neighbourhood of the crack-tip posses a weaker singularity than r-1/2. As a result, fracture occurs when the crack-tip stress distribution is different as compared with that when buckling is artificially prevented. Therefore the During fracture of membranes loading often produces buckles above and below the cracksurface. This changes the stress state surrounding the crack-tip and stresses in theneighbourhood of the crack-tip posses a weaker singularity than r-1/2. As a result, fractureoccurs when the crack-tip stress distribution is different as compared with that when bucklingis artificially prevented. Therefore the cond

Patterns of animal migration and the ecological forces that shape them have been studied for centuries. Yet ecological impacts caused by the migration, such as altered predator–prey interactions and effects on community structure, remain poorly understood. This is to a large extent due to the scarcity of naturally replicated migration systems with negative controls, that is, ecosystems without mig

We present a general method, the δ-test, which establishes functional dependencies given a sequence of measurements. The approach is based on calculating conditional probabilities from vector component distances. Imposing the requirement of continuity of the underlying function, the obtained values of the conditional probabilities carry information on the embedding dimension and variable dependenc

Acetylcholine (ACh) induces an Nω–nitro–L–arginine (L–NOARG)–resistant relaxation and hyperpolarization in the rat isolated hepatic artery. The possibility that carbon monoxide (CO) produced by haem oxygenase (HO) is an endogenous mediator of this response was investigated. Exogenously applied CO evoked a concentration–dependent relaxation, and the CO ‘scavenger’ oxyhaemoglobin (10μM) reduced the

Surveys of students’ and teachers’ experiences at the Department of Geology, Lund University, have shown a need and wish among students to get, for example, more practice in using and understanding geological terminology and to understand the context of different features. Among teachers a common problem is (too) limited time per student to always give meaningful feedback and support. Learning mat

Unesterified radioactive cholesterol, both bound to serum lipoproteins and dispersed in ethanol-saline, was injected into bile fistula and intact rats. Due to phagocytosis, mainly by the liver macrophages, intravenously injected cholesterol in ethanol-saline disappears from the bloodstream significantly faster than lipoprotein-bound cholesterol. Soon after the initial phagocytosis, the particulate

Aims. This study was primarily aimed for developing and testing a valid and reliable instrument that measures perceived threat of the risk for graft rejection after organ transplantation. A second aim was to report descriptive data regarding graft rejection and Health‐Related Quality of Life.Background. The most serious risk connected with transplantations besides infection is graft rejection.Desi

A blog-post on a performance of The Taming of the Shrew by LU students.

Sweden is not famous for its dune fields, and rightfully so; compared to most other countries of the world the Swedish dune fields are humble in size. Also, many of them are inactive and covered by vegetation. Due to this the dune fields of Sweden have been left largely unexplored the last decades. This is unfortunate since many of the dune fields in Sweden are valuable palaeo-environmental time c