Sökning: "subtraktion"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet subtraktion.

  1. 1. Handlingar i matematikklassrummet : En studie av undervisningsverksamheter på lågstadiet då räknemetoder för addition och subtraktion är i fokus

    Författare :Margareta Engvall; Joakim Samuelsson; Karin Forslund Frykedal; Astrid Pettersson; Linköpings universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Mathematics classroom; mathematics teaching; mathematics competence; possible learning; classroom culture; classroom communication; manipulatives; teaching strategies; activity theory; mathematics education; Matematikklassrum; matematikundervisning; matematisk kompetens; möjligt lärande; klassrumskultur; klassrumskommunikation; laborativt material; arbetsformer; verksamhetsteori; matematikdidaktik;

    Sammanfattning : Syftet med avhandlingen är att beskriva, analysera och förstå matematikundervisning på lågstadiet. Mer precist är syftet att undersöka vad denna undervisning ger elever i några klassrum möjlighet att lära då undervisningsinnehållet är skriftliga räknemetoder för addition och  ubtraktion. LÄS MER

  3. 2. Filtering and Wavelet Regression Methods with Application to Exercise ECG

    Författare :Stefan Peterson; Matematisk statistik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; aktuariematematik; programmering; operationsanalys; Statistik; actuarial mathematics; programming; operations research; Statistics; Model Selection; Robust Estimation; Haar Wavelets; Wavelets; Time Series Analysis; Exercise ECG; Kalman Filter;

    Sammanfattning : The analysis of the recorded electrical activity of the heart during an exercise test is a valuable method for investigating a patient's circulatory and respiratory system. But the disturbances that occurr during a test often make it difficult to interpret the signal in order to detect changes evoked by the increased workload and related to for instance coronary artery diseases. LÄS MER

  4. 3. Electromyogram Signal Enhancement and Upper-Limb Myoelectric Pattern Recognition

    Författare :Sara Abbaspour; Maria Lindén; Christian Antfolk; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; elektronik; Electronics;

    Sammanfattning : Losing a limb causes difficulties in our daily life. To regain the ability to live an independent life, artificial limbs have been developed. Hand prostheses belong to a group of artificial limbs that can be controlled by the user through the activity of the remnant muscles above the amputation. LÄS MER

  5. 4. Proposing Combined Approaches to Remove ECG Artifacts from Surface EMG Signals

    Författare :Sara Abbaspour; Maria Lindén; Urban Wiklund; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Electromyography (EMG) is a tool routinely used for a variety of applications in a very large breadth of disciplines. However, this signal is inevitably contaminated by various artifacts originated from different sources. LÄS MER

  7. 5. Studies on the use of digital radiography for the assessment of periapical bone lesions

    Författare :Boel Kullendorff; Helsingborg Kliniska Vetenskaper; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; subtraction radiography; image processing; Digital radiography; dental radiography; Odontology; stomatology; Odontologi;

    Sammanfattning : The aim was to study digital radiography and to evaluate the influence of image processing on digital dental radiographs for the assessment of periapical lesions. In four studies, artificial bone lesions were made periapically and interradicularly in the mandibular premolar and molar regions. LÄS MER