5 resultados para utredning

em Helda - Digital Repository of University of Helsinki


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This thesis is an investigation of the significance of VAK, i.e. the visual, auditory and kinaesthetic learning styles, for language education. The research part evaluates the predictive validity of a VAK test commonly used in Finnish education. The results of the test were compared, respectively, with the results of a visual, an auditory and a kinaesthetic word test. 62 dyslexic language leaners participated in the tests. There was no statistically significant link between the results of the VAK test and the word tests. On the grounds of a voluntary questionnaire, most of the students did however consider it important that they are taught according to their personal learning style: visual, auditory or kinaesthetic. One of the goals of the study was to investigate the theoretical background of VAK. VAK does not seem to have a consistent theoretical basis, but combines various elements such as NLP pedagogy and Dunn's and Prashnig's learning style models that have previously been sharply criticized by scholars. The study leaves it open whether individual learning styles do exist, and how they could be diagnosed.

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The complexity of life is based on an effective energy transduction machinery, which has evolved during the last 3.5 billion years. In aerobic life, the utilization of the high oxidizing potential of molecular oxygen powers this machinery. Oxygen is safely reduced by a membrane bound enzyme, cytochrome c oxidase (CcO), to produce an electrochemical proton gradient over the mitochondrial or bacterial membrane. This gradient is used for energy-requiring reactions such as synthesis of ATP by F0F1-ATPase and active transport. In this thesis, the molecular mechanism by which CcO couples the oxygen reduction chemistry to proton-pumping has been studied by theoretical computer simulations. By building both classical and quantum mechanical model systems based on the X-ray structure of CcO from Bos taurus, the dynamics and energetics of the system were studied in different intermediate states of the enzyme. As a result of this work, a mechanism was suggested by which CcO can prevent protons from leaking backwards in proton-pumping. The use and activation of two proton conducting channels were also enlightened together with a mechanism by which CcO sorts the chemical protons from pumped protons. The latter problem is referred to as the gating mechanism of CcO, and has remained a challenge in the bioenergetics field for more than three decades. Furthermore, a new method for deriving charge parameters for classical simulations of complex metalloenzymes was developed.

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This work focuses on the role of macroseismology in the assessment of seismicity and probabilistic seismic hazard in Northern Europe. The main type of data under consideration is a set of macroseismic observations available for a given earthquake. The macroseismic questionnaires used to collect earthquake observations from local residents since the late 1800s constitute a special part of the seismological heritage in the region. Information of the earthquakes felt on the coasts of the Gulf of Bothnia between 31 March and 2 April 1883 and on 28 July 1888 was retrieved from the contemporary Finnish and Swedish newspapers, while the earthquake of 4 November 1898 GMT is an example of an early systematic macroseismic survey in the region. A data set of more than 1200 macroseismic questionnaires is available for the earthquake in Central Finland on 16 November 1931. Basic macroseismic investigations including preparation of new intensity data point (IDP) maps were conducted for these earthquakes. Previously disregarded usable observations were found in the press. The improved collection of IDPs of the 1888 earthquake shows that this event was a rare occurrence in the area. In contrast to earlier notions it was felt on both sides of the Gulf of Bothnia. The data on the earthquake of 4 November 1898 GMT were augmented with historical background information discovered in various archives and libraries. This earthquake was of some concern to the authorities, because extra fire inspections were conducted in three towns at least, i.e. Tornio, Haparanda and Piteå, located in the centre of the area of perceptibility. This event posed the indirect hazard of fire, although its magnitude around 4.6 was minor on the global scale. The distribution of slightly damaging intensities was larger than previously outlined. This may have resulted from the amplification of the ground shaking in the soft soil of the coast and river valleys where most of the population was found. The large data set of the 1931 earthquake provided an opportunity to apply statistical methods and assess methodologies that can be used when dealing with macroseismic intensity. It was evaluated using correspondence analysis. Different approaches such as gridding were tested to estimate the macroseismic field from the intensity values distributed irregularly in space. In general, the characteristics of intensity warrant careful consideration. A more pervasive perception of intensity as an ordinal quantity affected by uncertainties is advocated. A parametric earthquake catalogue comprising entries from both the macroseismic and instrumental era was used for probabilistic seismic hazard assessment. The parametric-historic methodology was applied to estimate seismic hazard at a given site in Finland and to prepare a seismic hazard map for Northern Europe. The interpretation of these results is an important issue, because the recurrence times of damaging earthquakes may well exceed thousands of years in an intraplate setting such as Northern Europe. This application may therefore be seen as an example of short-term hazard assessment.

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I denna utredning har det kartlagts de åtgärder som de finska regionala och lokala förvaltningsmyndigheterna och riksdagspartierna har vidtagit för att stöda invandrares samhälleliga och politiska deltagande. Dessutom har man betraktat undervisningen om och behandlingen av teman som gäller samhälleligt och politiskt deltagande på integrationskurser. Materialet som utnyttjas vid kartläggningen har samlats in genom förfrågningar, som har sänts till ELYcentralerna, de största kommunerna, riksdagspartierna och de läroanstalter som ordnar integrationskurser. Utredningen hör till projektet Likabehandling på första plats 3 (YES 3, på finska Yhdenvertaisuus etusijalle). YESprojektet är en nationell kampanj mot diskriminering vars mål är att öka medvetenheten om och beredskapen för likabehandling och ickediskriminering och att främja godkännandet av pluralism i samhället. Projektet finansieras av EUkommissionens PROGRESSprogram (20072013) samt av de organisationer som deltagit i projektet. Justitieministeriet har deltagit i YES 3projektet med ett eget delprojekt, vars mål är att öka invandrarnas samhälleliga delaktighet, deras kanaler för deltagande och deras kunskaper om de grundläggande rättigheterna.

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Inledning Diabetisk nefropati är den mest fruktade diabeteskomplikationen. Utvecklingen av nefropati har redan länge undersökts genom mätning av mängden albuminutsöndring i urinen. Nyligen har man upptäckt att njurfunktionen kan vara nedsatt oberoende av albuminuri. Mål Att undersöka prevalensen samt associationer av kronisk njursvikt utan albuminuri (nonalbuminuric renal disease eller NARD) hos typ 1 diabetiker. Betydelsen av blodtrycksmedicinering, speciellt ACE-/AT2-inhibitorer, behandlas också. Material och metoder Studien ingår i den nationella multicenterstudien FinnDiane. En population på ca. 4000 typ 1 diabetiker har analyserats. Patienter med nefropati utan albuminuri identifierades. Statistiska analyser gjordes med SPSS 19.0. Njurfunktionen (eGFR) estimerades med CKD-EPI ekvationen. Resultat Prevalensen av NARD inom den normoalbuminura gruppen var 3,5%, prevalensen hos män 1,0% samt hos kvinnor 5,4%. Sammanlagt 79 patienter med NARD (12 män och 67 kvinnor) identifierades. ACE-/AT2-inhibitorer kan påverka prevalensen av NARD men inte statistiskt signifikant (p=0,067). Risken för progression av NARD till mikroalbuminuri var betydligt större hos denna grupp (p=0,006) i jämförelse med den normoalbuminura gruppen med normal njurfunktion. I en överlevnadsanalys framkom att mortaliteten var högre inom mikroalbuminuri-gruppen än inom NARD-gruppen (p<0,001, ålders- samt könskorrigerat). Diskussion Prevalensen av NARD var lägre än i motsvarande studier utomlands på typ 2 diabetiker. NARD patienterna hade en ökad risk för progression till mikroalbuminuri men inte en ökad mortalitet. ACE-/AT2-inhibitorerna kan delvis förklara NARD fenomenet. Nya studier med ett större antal NARD patienter behövs för en noggrannare utredning.