Sökning: "Rationella tal"

Hittade 5 avhandlingar innehållade orden Rationella tal.

  1. 1. Rationella tal som tal : Algebraiska symboler och generella modeller som medierande redskap

    Författare :Helena Eriksson; Torbjörn Tambour; Inger Eriksson; Astrid Pettersson; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Rational numbers; learning study; learning activity; Mathematics education; Rationella tal; lärandeverksamhet; matematikundervisning; matematikämnets didaktik; Mathematics Education; Education and Learning;

    Sammanfattning : In this study the teaching of mathematics has been developed in relation to rational numbers and towards a learning activity. At the same time topic-specific mediated tools have been studied. The iterative model for learning study has been used as research approach. LÄS MER

  3. 2. On numbers badly approximable by q-adic rationals

    Författare :Johan Nilsson; Matematik LTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Number theory; Symbolic dynamics; Combinatorics on words; Badly approximable numbers; Diophantine approximation; Mathematics; Matematik; Dynamical systems;

    Sammanfattning : The thesis takes as starting point diophantine approximation with focus on the area of badly approximable numbers. For the special kind of rationals, the q-adic rationals, we consider two types of approimations models, a one-sided and a two-sided model, and the sets of badly approximable numbers they give rise to. LÄS MER

  4. 3. Dynamics of Smooth Hyperbolic Systems with Singularities

    Författare :Tomas Persson; Dynamiska system; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matematik; Mathematics; Dimension Theory; Hyperbolic Dynamics; Subshift; SRB-measure;

    Sammanfattning : This thesis is about dynamics of piecewise hyperbolic maps on bounded sets in the plane and on the interval. It is based on the following papers: T. Persson, A piecewise hyperbolic map with absolutely continuous invariant measure, Dynamical Systems: An International Journal, 21:3 (2006), 363--378 T. LÄS MER

  5. 4. Talet om en skola för alla : pedagogers meningskonstruktion i ett politiskt uppdrag

    Författare :Inger Assarson; Malmö högskola; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; school; discourse analysis; political rhetoric; inclusion; special needs;

    Sammanfattning : En skola för alla, som skolpolitiskt mål, har formats i ett större socialt sammanhang där demokratisering och välfärdsstatens framväxt har varit viktiga inslag. Som retorik är dess funktion att samla olika gruppers förhoppningar i en gemensam strävan efter något som skulle kunna bli bättre. LÄS MER

  7. 5. Perinatal mortality among immigrants from Africa´s Horn: The importance of experience, rationality, and tradition for risk assessment in pregnancy and childbirth

    Författare :Birgitta Essén; Malmö Institutionen för kliniska vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Obstetrics; gynaecology; perinatal audit; anthropology; epidemiology; female circumcision; acculturation; sub-optimal care; ethnic background; immigrants; Perinatal mortality; andrology; reproduction; reproduktion; andrologi; sexuality; gynekologi; Obstetrik; sexualitet;

    Sammanfattning : This thesis is an exploration of the possible effects of maternal country of origin on the risk of perinatal mortality (PNM). Increased risk of PNM was found among infants of foreign-born women delivering in a Swedish hospital between 1990-1995. LÄS MER