Lichens, a form of symbiosis between a fungal and a photosynthetic partner, are believed to be a group that evolved early in the history of terrestrial life. As a consequence, they probably experienced higher ultraviolet (UV) radiation fluxes than at present. However, in the last two decades, due to the depletion of the stratospheric ozone layer, increasing levels of ultraviolet-B radiation (280-3

Popular Abstract in Swedish Reglering av celltillväxt och celldöd är mycket viktigt för bibehållandet av balansen mellan antalet olika celler i kroppen. Om regleringen rubbas kan olika sjukdomar uppkomma, som karakteriseras av för mycket celltillväxt eller av för mycket celldöd. Exempel är cancer, där man har för mycket tillväxt, samt många degenerativa sjukdomar som diabetes, Parkinsons och aids,Apoptosis is a kind of death that is best described as cellular suicide and it is important for normal tissue homeostasis. The process can be induced by a number of different stimuli and the dying cell goes through a defined pathway terminating in typical biochemical and morphological alterations of the cell. With my studies I wanted to investigate the role of the polyamines in the regulation of a

Recycling has traditionally been promoted for environmental reasons, but it also has increasing economic importance. A review of the development of the concept of green economy indicates that recycling is an integral part of green economy. This report is about recycling and different aspects of its economic importance for Europe such as turnover, trade within and out of Europe and job creation. Th

Intermittently administered PTH is known to increase bone mass in osteoporosis models. We studied its effects in bone repair and implant fixation, using histological and mechanical techniques in rats. In a bone chamber, PTH substantially increased the density of the new-formed bone, whereas there was only a minor effect on the pre-existing bone in the L5 vertebra or femur. Considering that PTH inc

Projektet är ett samarbete mellan LTH och åtta gymnasieskolor i närregionen som startade under hösten 2007 och går ut på att använda den s.k. SI-metodiken som komplement till den ordinarie undervisningen i naturvetenskapliga ämnen. SI-övningarna leds av teknologer från LTH. Syftet med projektet är flera: att förbättra samverkan mellan LTH och gymnasieskolor i närregionen; öka intresset för naturve

Answers to prepared questions by the editors on developments in Romania from 1989 to 2009, asked of several experts of Romania. Views on the Romanian revolution and the success of the transition to democracy. Translated from English to Romanian

This paper is devoted to a discussion of Catford's and Fischer-Jørgensen's defence of the classical vowel articulation model (1, 2, 3). Objections to the model are not directed at Bell's personality, but at the theoretical structure of his model: critical functions of the model are contradicted by empirical data and by acoustical theory. Nor are the ojections only relevant for amendments introduce

The purpose of this thesis is to identify patents invented by researchers at Lund University, to describe the university inventors,and to understand the main factors that influence their patenting activities. The analysis focuses on inventors in relation to their environment. A number of factors influence scientists’ decisions to patent. Internal factors related to individuals such as solving the

The main topic of this thesis is the investigation of atomic andmolecular adsorbates on single crystal surfaces of silicon and aluminiumusing the techniques of scanning tunnelling microscopy (STM) andspectroscopy (STS). The emphasis has been to use atomic-resolutionspectroscopy and imaging to determine the relationship between thesurfaces' geometric and electronic structures. The STM results have

A number of protected aromatic bis- and tris(amino acids) have been synthesised by catalytic asymmetric hydrogenation of the corresponding didehydroamino acid derivatives. The didehydroamino acid derivatives were prepared either by a Heck coupling of a 2-amidoacrylate with an aryl dihalide, or by Horner-Wadsworth-Emmons olefination of aromatic aldehydes with phosphonylglycine reagents. Excellent s

Popular Abstract in Swedish Bröstcancer är den vanligast förekommande cancerformen hos kvinnor. Under sin livstid kommer tio procent av den kvinnliga befolkningen att få bröstcancer men endast en minoritet kommer att avlida av den. Operation är den vanligaste behandlingen och kombineras oftast med strålbehandling. Armlymfödem samt nedsatt axelrörlighet och muskelstyrka är välkända sidoeffekter tilTen percent of the female population in Sweden will be diagnosed with breast cancer during their lifetime, but only a minority will die from the disease. Arm lymph oedema is a well-known complication following breast cancer treatment and the incidence varies between about 10% when axillary node dissection is performed and about 40% when axillary radiotherapy is added. The general aim of this thes

This report presents a quantified model as a guide for the Incident Commander to determine the most suitable fire-fighting tactics in advance for given conditions at specific objects. The model is applied to two chemical warehouses. The model proves that it is possible to introduce risk management procedures and fire safety engineering models into fire-fighting tactics. If the model and its differ