Sökning: "class size"

Visar resultat 1 - 5 av 272 avhandlingar innehållade orden class size.

1. 1. Lärares och elevers interaktion i klassrummet : Betydelse av kön, ålder, ämne och klasstorlek samt lärares uppfattningar om interaktionen

   Författare :Charlotta Einarsson; Kjell Granström; Håkan Alm; Linköpings universitet; []
   Nyckelord :Classroom interaction; gender differences; class size; teachers conceptions; teacher behaviour; pupil behaviour; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

   Sammanfattning : The aim of this thesis is to investigate classroom interaction. Of central importance are the following questions; Does gender of pupil, gender of teacher, age of pupils, subject taught and class size have any importance for the classroom interaction? What conceptions of interaction with pupils do teachers have?Data have been collected by two different methods – structured classroom observations and focus groups. LÄS MER

3. 2. Population ecology of perch (Perca fluviatilis) in boreal lakes

   Författare :Arne Linløkken; Eva Bergman; Larry Greenberg; Anders Hargeby; Karlstads universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; perch; growth; size; mortality; temperature; acidification; density; roach; competition; Biology; Biologi; Biology; Biologi;

   Sammanfattning : I studied the effects of temperature, pH, competition and predation on Eurasian perch (Perca fluviatilis) in 30 lakes in Norway during 1981-2001. The study lakes were situated in two different areas in southern Norway; four lakes in Aust-Agder county in southernmost Norway were explored during 1981-1984 and 26 lakes in Hedmark county in south-eastern Norway were investigated during 1992-2001. LÄS MER

4. 3. Pre-school Teachers’ Perceived Control and Behaviour Problems in Children

   Författare :Annie Hammarberg; Ann Frodi; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Psychology; pre-school teachers; perceived control; externalising behaviours; internalising behaviours; change; continuity; class size; child to adult ratio; sex distribution; child – teacher interactions; Psykologi; Psychology; Psykologi; Psychology; psykologi;

   Sammanfattning : In this thesis, pre-school teachers’ perceived control, is examined in relation to problem behaviours of children and the actions of teachers in the classroom. In addition, other factors that are thought to relate to teachers’ perceived control were studied. LÄS MER

5. 4. Machine Learning Methods Using Class-specific Subspace Kernel Representations for Large-Scale Applications

   Författare :Yinan Yu; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; class-specific kernels; large-scale framework; subspace model; classification; kernel approximation; RKHS;

   Sammanfattning : Kernel techniques became popular due to and along with the rising success of Support Vector Machines (SVM). During the last two decades, the kernel idea itself has been extracted from SVM and is now widely studied as an independent subject. LÄS MER

7. 5. Estimating particle size distributions based on machine vision

   Författare :Tobias Andersson; Anthony Maeder; Luleå tekniska universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industriell elektronik; Industrial Electronics;

   Sammanfattning : This thesis contributes to the field of machine vision and the theory of the sampling of particulate material on conveyor belts. The objective is to address sources of error relevant to surface-analysis techniques when estimating the sieve-size distribution of particulate material using machine vision. LÄS MER