Sökning: "Hans Richter"

Visar resultat 1 - 5 av 7 avhandlingar innehållade orden Hans Richter.

  1. 1. Supraliminal contrast functions and voluntary negative modulation of accommodation in the visual system

    Författare :Hans Richter; Uppsala universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP;

    Sammanfattning : .... LÄS MER

  3. 2. En god visuell arbetsmiljö : ögonbesvär, muskuloskeletala besvär och produktivitet hos brevbärare

    Författare :Hillevi Hemphälä; Jörgen Eklund; Roger Wibom; Hans Richter; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Eyestrain; lighting; non-computer workplaces; musculoskeletal disorders; visual environment; younger postmen; Work sciences and ergonomics; Arbetsvetenskap och ergonomi;

    Sammanfattning : This study appears to be one of few intervention studies with focus on eyestrain and lighting on non-computer workplaces. Previous studies have shown strong connections between eyestrain and musculoskeletal strain. LÄS MER

  4. 3. Infrared Laser Stimulation of Cerebral Cortex Cells - Aspects of Heating and Cellular Responses

    Författare :Rickard Liljemalm; Tobias Nyberg; Hans von Holst; Claus-Peter Richter; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; laser; modeling; heating; infrared neural stimulation; astrocytes; neurons; damage;

    Sammanfattning : The research of functional stimulation of neural tissue is of great interest within the field of clinical neuroscience to further develop new neural prosthetics. A technique which has gained increased interest during the last couple of years is the stimulation of nervous tissue using infrared laser light. LÄS MER

  5. 4. Characterisation of green-glued wood adhesive bonds

    Författare :Magdalena Sterley; Erik Serrano; Hans Petersson; Klaus Richter; Linnéuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; green gluing; finger jointing; durability; shear strength; wood failure percentage; fracture energy; tensile strength; PUR adhesive; Byggteknik; Civil engineering;

    Sammanfattning : The gluing of unseasoned wood, called green gluing, is a relatively new sawmill process, implying a radically changed order of material flow in the production of value-added wood-based products. It facilitates the enhancement of raw material recovery and value yield by integrating defect elimination and gluing already before kiln drying. LÄS MER

  7. 5. The impact of visually demanding near work on neck/shoulder discomfort and trapezius muscle activity : Laboratory studies

    Författare :Camilla Zetterberg; Hans O Richter; Mikael Forsman; Malin Josephson; Hanne Mari Schiøtz Thorud; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Accommodation; Asthenopia; Computer work; Eye-neck head stabilization; Muscle activity; Neck pain; Visual Attention; Visual demand; Visual ergonomics; Medical Science; Medicinsk vetenskap;

    Sammanfattning : Introduction: Musculoskeletal discomfort in the neck and shoulders is common among workers performing visually demanding near work, e.g., on a computer screen, and sustained low-level muscle activity during such work can lead to work-related pain. LÄS MER