Sökning: "positive-negative form"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden positive-negative form.

  1. 1. Fitting Objects Into Holes : On the Development of Spatial Cognition Skills

    Författare :Helena Örnkloo; Claes von Hofsten; Kerstin Rosander; Jeffrey Lockman; Uppsala universitet; []
    Nyckelord :Psychology; toddlers; action planning; manipulation; means-end relationships; mental rotation; choice; positive-negative form; Psykologi;

    Sammanfattning : Children’s ability to manipulate objects is the end-point of several important developments. To imagine objects in different positions greatly improves children’s action capabilities. They can relate objects to each other successfully, and plan actions involving more than one object. LÄS MER

  3. 2. Statistical Properties of Preliminary Test Estimators

    Författare :Nicklas Korsell; Rolf Larsson; Johan Lyhagen; Tore Schweder; Uppsala universitet; []
    Nyckelord :Statistics; Linear regression; Preliminary test; Model selection; Test for homoscedasticity; Variance components; Truncated estimators; Inertia of matrices; Statistik;

    Sammanfattning : This thesis investigates the statistical properties of preliminary test estimators of linear models with normally distributed errors. Specifically, we derive exact expressions for the mean, variance and quadratic risk (i.e. the Mean Square Error) of estimators whose form are determined by the outcome of a statistical test. LÄS MER

  4. 3. On plant responses to D-amino acids : features of growth, root behaviour and selection for plant transformation

    Författare :Oskar Forsum; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Amino acids have been regarded as potential plant nitrogen sources for more than a century. Some amino acids have been shown to support growth while others have growth-retarding effects. The D-isomers with notably adverse effects on plants’ growth and development include D-serine and D-alanine. LÄS MER

  5. 4. Studies of alternative exchange rate systems : an intertemporal general equilibrium approach

    Författare :Torsten Persson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Sammanfattning : The four studies in this monograph analyze and compare the working of alternative exchange rate systems. Dealing with related though different problems, they all rely on a similar theoretical framework that applies intertemporal general equilibrium analysis, temporary equilibrium theory and a specific microtheory of money. LÄS MER

  7. 5. Human Value Structure and Emotions

    Författare :William Montgomery; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Value structure; emotions; circumplex structure; multivariate statistical methods;

    Sammanfattning : In this dissertation Shalom Schwartz’ theory of the structure of basic human values is developed. A partially new structure is proposed consisting of pairs of contrastive values (Security – Courage, Manage by yourself – Get help, Adaptation – Own will, and Prioritize yourself – Prioritize others) and non-contrastive values (Happiness, Meaningfulness, Love, Enjoyment, Respect, Deeper understanding of the world, Achievement, and Health). LÄS MER