Human postural dynamics was investigated in twelve normal subjects by means of a force platform recording body sway induced by bipolar transmastoid galvanic stimulation of the vestibular nerve and labyrinth. We modeled the stabilizing forces actuated by the feet as resulting from complex muscular activity subject to feedback of body velocity and position. Time series analysis demonstrated that a t

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This paper discusses a method for abnormal motion detection and its real-time implementation on a smart camera. Abnormal motion detection is a surveillance technique that only allows unfamiliar motion patterns to result in alarms. Our approach has two phases. First, normal motion is detected and the motion paths are trained, building up a model of normal behaviour. Feed-forward neural networks are

Abstract is not available

Poland holds great potential for bioenergy. However, biomass production from dedicated energy crops has not developed at a pace that was hoped. Clearly, there are barriers hindering farmers. The aim of this research was to directly explore the farmers’ perspective on barriers to growing dedicated energy crops in Poland. During the on-the-ground research conducted in Poland the perceptions regardin

Popular Abstract in Swedish Att mäta kroppsställningar och rörelser under arbete Belastningsskador är vanliga och medför höga kostnader, både för de drabbade och för samhället. Kvinnor som arbetar med repetitivt arbete, t.ex. monteringsarbete och livsmedelshantering (fiskberedning och kycklingslakt), drabbas ofta, särskilt i nacke, axlar, armar och händer. De åtgärder som genomförts på arbetsplatWork-related musculoskeletal disorders of the neck and upper limb are a major problem. Women in repetitive manual work is one large affected group. Preventive actions are hampered by the lack of knowledge regarding quantitative exposure-response relations for physical workload. The present work shows, that available electrogoniometers are, with a sampling frequency of 20 Hz, feasible for measurin

Popular Abstract in Swedish Den här avhandlingen behandlar främst Schwannceller och hur de reagerar på en nervskada. Schwannceller omger alla nervtrådar i det perifera nervsystemet det vill säga det nervsystem som ligger utanför hjärna och ryggmärg och innerverar armar, ben, händer och fötter och så vidare. Schwannceller och ger dessa tillgång till de näringsämnen de behöver. De städar också upp sThis thesis concerns alterations in signal transduction in Schwann cells as a response to nerve injury as well as their survival, proliferation and death. Enzymes and transcription factors belonging to the mitogen activated protein kinase (MAPK) and the stress activated protein kinase (SAPK) pathways were studied. This included the extracellular-signal-regulated kinase 1/2 (ERK1/2), c-Jun N-termin

Popular Abstract in Swedish Cytokrom P450 är en stor enzymfamilj som finns i alla levande organismer och tar del i både endogen och exogen metabolism. De är primärt mono-oxygenaser och utför en stor mängd reaktioner. Till skillnad från många andra enzymer har de blivit optimerade för att kunna reagera med många olika substrat, istället för att ha höga reaktionshastigheter. I det aktiva sätet har dThe cytochromes P450 are a large enzyme family that is found in all living organisms and takes part in both endogenous and exogenous metabolism. They are primarily mono-oxygenases and perform a wide range of reactions. In contrast to many other enzymes, they have been optimised to react with a wide range of substrates instead of having high reaction rates. In the active site, these enzymes have a