Sökning: "spurious correlation"

Visar resultat 1 - 5 av 13 avhandlingar innehållade orden spurious correlation.

  1. 1. Van der Waals Interactions in Density Functional Theory

    Författare :Erika Hult; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; van der Waals interaction; exchange-correlation energy; adhesion; intermolecular forces; physisorption; density functional theory;

    Sammanfattning : Density functional theory is a very important method for calculating ground-state properties for atoms, molecules and solids. Albeit exact in principle, its implementation requires an approximation for the so-called exchange-correlation energy. LÄS MER

  3. 2. Wavelet Analysis of Economic Time Series

    Författare :Fredrik N G Andersson; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; freight transportation activity; wavelet analysis; cointegration; inflation; bandspectrum regression; money; coreinflation;

    Sammanfattning : Economic theory commonly distinguishes between different time horizons such as the short run and the long run. Models with many time horizons are easily studied in the frequency domain, because the various time horizons are associated with a particular frequency or band of frequencies. LÄS MER

  4. 3. Modeling and Simulation of CGI Machining on Microstructure Level

    Författare :Goran Ljustina; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; objective strain rates; hypoelastic-inelastic consitutive modelling; Johnson-Cook plasticity;

    Sammanfattning : incorporation of new design materials – e.g. in order to promote lightweight design – oftenleading to significant changes in manufacturing conditions, which can be assessed in anefficient way by simulation rather than more expensive testing. LÄS MER

  5. 4. A Parametric Approach to Yeast Growth Curve Estimation and Standardization

    Författare :Ilona Pylvänäinen; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bioscreen; Chapman-Richards model; growth curve; growth rate; lag time; optical density OD ; Saccharomyces cerevisiae; standardized curve; stationary phase OD increment; summary curve; optical density OD ;

    Sammanfattning : The purpose of this thesis is to contribute to the understanding of yeast growth. It builds upon a dataset consisting of growth curves of 576 Saccharomyces cerevisiae mutants in eight different environments. The data will be a part of a publicly available phenotypic library, PROPHECY, containing growth curves and characteristics of viable S. LÄS MER

  7. 5. Respiratory influences on pupil size dynamics and visual recognition memory

    Författare :Martin Schaefer; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Breathing, a fundamental rhythm of life, has traditionally been associated with the exchange of oxygen and carbon dioxide. However, recent research in both animal models and humans has unveiled additional roles of respiration in modulating cortical neuronal activity, influencing sensory, motor, emotional, and cognitive processes. LÄS MER