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Sedentary passerine birds living in temperate and boreal regions need a high metabolic capacity for thermogenesis to survive winter conditions. As a consequence of the increased thermogenic capacity, basal energetic demands rise at a time when resources and time to acquire them decrease. In a previous study, great tits (Parus major) from two localities in Fennoscandia with contrasting winter condi
Popular Abstract in Swedish De generella företeelser som sker i samband med en axonal skada i det perifera nervsystemet (PNS) har tidigare beskrivits i detalj. Däremot är de molekylära mekanismer som ligger bakom celldöd, eller bakom nervcellens förmåga att regenerera efter en axonal skada, ringa studerade. Den här avhandlingen behandlar en sådan molekylär mekanism, JNK-medierad aktivering av c-JuThe events associated with axonal injury in the peripheral nervous system (PNS) have been described in detail. However, the molecular mechanisms underlying the regenerative response, or neuronal cell death, following axonal injury are poorly understood. This thesis concerns one such molecular mechanism, JNK-mediated c-Jun activation, in peripheral sensory and sympathetic neurons. By immunohistoche
This paper focuses on the development of a machine design environment for numeric modelling and analysis of radial flux machines. The design environment is based on Matlab/(Octave) environment, which calls numeric field analysis by FEVIM/(Opera-2D). The analysis tool is intended for educational purposes; however it has proved to be a powerful research tool especially at early design stages.
Values among individuals having client-related jobs and organisations in client related sectors might differ from values in their counterparts in jobs and sectors that are not client-related. It is possible that jobs that include interactions with other people demand more developed moral thinking. This report is a description of differences that has been found in a comparison between a ward in the
Abstract is not available
The synthesis of phospholipids with defined fatty acid and polar head composition catalysed by lipases and phospholipases was investigated. Lipases from Rhizopus arrhizus and Candida antarctica were used for the direct acylation of DL-a-glycerophosphate and L-a-glycerophosphatidylcholine, with different fatty acids. Esterification reactions can be carried out in systems with low wate
We consider an optimization problem of joint link rate assignment and transmission scheduling in wireless mesh networks. We assume that each radio link uses (when active) one selected link-dependent modulation and coding scheme. For finding an exact optimum, the problem requires a complicated branch-and-price algorithm that becomes excessively time consuming for networks of practical size. Therefo
Abstract is not available
A practical optical link system was prepared with a transmitter (Tx) and receiver (Rx) for reducing EMI (electromagnetic interference). The optical TRx module consisted of a metal optical bench, a module printed circuit board (PCB), a driver/receiver IC, a VCSEL/PD array, and an optical link block composed of plastic optical fiber (POF). For the optical interconnection between the light-sources an
Renewable portfolio standards (RPS) and minimum price standards are two systems to foster the market dissemination of renewable energies in the electricity sector. Transaction Cost Economics brings forward that the contractual relations in real structures have to be investigated to judge on the efficiency of governance structures. This paper seeks to do so by comparing governance structures create
