Sökning: "Slope data"

Visar resultat 1 - 5 av 126 avhandlingar innehållade orden Slope data.

  1. 1. When mathematics teachers focus discussions on slope : Swedish upper secondary teachers in a professional development initiative

    Författare :Anna Bengtsson; Constanta Olteanu; Kirsti Hemmi; Linnéuniversitetet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; teacher professional development; upper secondary mathematics teachers; collegiality; slope; rate of change; teaching culture; community of practice; learning study; Mathematical Education; Matematikdidaktik;

    Sammanfattning : The shift towards collegiality is a new setting for many teachers. Most teachers work alone, in isolation from their colleagues and collegial collaboration requires organisational structures. LÄS MER

  3. 2. Estimating Heterogeneous Panel Data Models

    Författare :Yousef Kaddoura; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Heterogeneity; Interactive effects; Latent groups; Panel data; Penalized estimators; Structural breaks; Lasso;

    Sammanfattning : This thesis deals with the development and application of new estimation methods of heterogenous panel data models. In Paper I, a new estimator for heterogeneous panel data models with random interactive effects is proposed. LÄS MER

  4. 3. Development and improvement of methods for characterization of HPLC stationary phases

    Författare :Torgny Undin; Torgny Fornstedt; Jörgen Samuelsson; Anders Törncrona; Johan Ekeroth; Douglas Westerlund; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Adsorption isotherms; Elution by characteristic points; Inflection points; Single component adsorption; Elution by characteristic points method; Slope data; ECP-slope method; Adsorption; Adsorption energy distribution; Adsorption isotherms; AED; Characterization of adsorption processes; Chromatographic analysis; Chromatography; Hydrophobic-subtraction method HSM ; Hydrophobicity; Linear methods; Linear Models; Liquid chromatography; metoprolol; Non-linear methods; Nonlinear methods; phenol; priority journal; propranolol; Retention mechanism; reversed phase liquid chromatography; Solvation; Subtraction method; Thermodynamics; Chemistry with specialization in Surface Biotechnology; Kemi med inriktning mot ytbioteknik;

    Sammanfattning : High Performance Liquid Chromatography (HPLC) is a widely used tech-nique both for detecting and purifying substances in academy and in the industry. In order to facilitate the use of, and knowledge in HPLC, character-ization of stationary phases is of utmost importance. LÄS MER

  5. 4. A GIS-based landscape analysis of dissolved organic carbon in boreal headwater streams

    Författare :Jan-Olov Andersson; Lars Nyberg; Hjalmar Laudon; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; boreal forests; wetlands; vegetation types; headwater streams; catchment hydrology; streamwater chemistry; DOC; GIS; terrain analysis; DEM; slope; wetness index; TWI; Freshwater ecology; Limnisk ekologi; Biology; Biologi;

    Sammanfattning : In boreal catchments, stream water chemistry is influenced and controlled by several landscape factors. The influence of spatially distributed variables is in turn dependent on the hydrological scale. LÄS MER

  7. 5. Rate as the relation of changes in two quantities : A variation theory perspective of learning rate of change

    Författare :Per Håkansson; Robert Gunnarsson; Ulla Runesson Kempe; Jönköping University; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; rate of change; slope; covariation; functions; mathematics teaching and learning; variation theory; learning study; förändringstakt; lutning; samvariation; funktioner; matematiklärande; variationsteori; learning study;

    Sammanfattning : This thesis comprises three original papers about learning rate of change in school mathematics. The overall aim of the thesis is to contribute with knowledge in this particular area of research. Within this aim, each of the original papers contribute with its own perspective. LÄS MER