Sökning: "Per Johansson"

Visar resultat 1 - 5 av 211 avhandlingar innehållade orden Per Johansson.

  1. 1. Optics of coated paperboard : Aspects of surface treatment on porous structures

    Författare :Erik Bohlin; Caisa Johansson; Magnus Lestelius; Per Edström; Per-Åke Johansson; Karlstads universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Chemical Engineering; Kemiteknik;

    Sammanfattning : Calendering of coated and uncoated paper is widely used to enhance optical properties such as gloss and print quality. The aim of this thesis is to characterize coatings and prints, and to validate models using experimental results from optical measurements of physical samples. Calendering of coated paper often leads to a brightness decrease. LÄS MER

  2. 2. Essays on Measurement Error and Nonresponse

    Författare :Fredrik Johansson; Anders Klevmarken; Per Johansson; Markus Jäntti; Uppsala universitet; []
    Nyckelord :Economics; Nationalekonomi;

    Sammanfattning : Essay 1 deals with measurement errors. Matching survey data with administrative records provides unique opportunities to evaluate the statistical properties of respondents' answers. This paper focuses primarily on home ownership and wealth variables. LÄS MER

  3. 3. Aphasia and Communication in Everyday Life : Experiences of persons with aphasia, significant others, and speech-language pathologists

    Författare :Monica Blom Johansson; Karin Sonnander; Marianne Carlsson; Per Östberg; Per Wester; Uppsala universitet; []
    Nyckelord :Aphasia; Significant others; Interpersonal communication; Communication strategies; Communication partner training; Speech-language pathology services; Medicinsk vetenskap; Medical Science;

    Sammanfattning : The aims of this thesis were to describe the experiences of persons with aphasia and their significant others of their conversations and use of communication strategies, examine current practice of family-oriented speech-language pathology (SLP) services, and test a family-oriented intervention in the early phase of rehabilitation.The persons with aphasia valued having conversations despite perceiving their aphasia as a serious social disability. LÄS MER

  4. 4. Biomimetic Transition Metal Catalysts : Insights from Theoretical Modeling

    Författare :Adam Johannes Johansson; Per E. M. Siegbahn; Margareta R. A. Blomberg; Per-Ola Norrby; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Catalysis; biomimetic; copper; non-heme iron; heme iron; O2 cleavage; H-atom transfer; radical chemistry; redox chemistry; thermo chemistry; entropy calculations; quantum chemistry; spin states; density functional theory DFT ; self-interaction error SIE .; Chemical physics; Kemisk fysik; kemisk fysik; Chemical Physics;

    Sammanfattning : The scientific interest in the chemistry of synthetic transition metal complexes is motivated by at least two arguments:1.These can be regarded as models of biological transition metal complexes, e.g. metalloenzymes, whose functions can be difficult to reveal in detail due to their complexity. LÄS MER

  5. 5. Essays on schooling, gender, and parental leave

    Författare :Elly-Ann Johansson; Peter Fredriksson; Per Johansson; Nabanita Datta Gupta; Uppsala universitet; []
    Nyckelord :SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; schooling; gender; parental leave; mixed-age classes; child care; preschools; Economics; Nationalekonomi; nationalekonomi; Economics;

    Sammanfattning : This thesis consists of four self-contained essays.   Essay 1: Mixed-aged classes (MA-classes) are a common phenomenon around the world. In Sweden, these types of classes increased rapidly during the 1980:s and 1990:s, despite the fact that existing empirical support for MA-classes is weak. LÄS MER