Sökning: "hand washing"

Visar resultat 11 - 15 av 18 avhandlingar innehållade orden hand washing.

  1. 11. Increasing the value of household appliances by adding a heat pump system

    Författare :Peder Bengtsson; Jonas Berghel; Tomas Persson; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Heat pump; Appliances; ASKO; Energy system; Energiteknik; Energy Technology;

    Sammanfattning : Historically, domestic tasks such as preparing food and washing and drying clothes and dishes were done by hand. In a modern home many of these chores are taken care of by machines such as washing machines, dishwashers and tumble dryers. LÄS MER

  3. 12. Human newborn behavior during exposure to maternal and other odors

    Författare :Heili Varendi; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Olfaction appears to play a pivotal role in immediate postnatal interactions between mammalian mothers and their offspring. The present study examined: (1) whether and how the newborn human infant and its mother communicate by means of olfaction; (2) the role of amniotic fluid (AF) and breast odors in such communication; (3) olfactory learning by neonates. LÄS MER

  4. 13. Vocational skills formation in communities of practice : Experiences from primary school and the informal economy in Tanzania

    Författare :Gunilla Höjlund; Robert Höghielm; Michael Young; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Key words: vocational skills formation; vocationalization; apprenticeship; communities of practice; “legitimate; peripheral participation”; ethnographic approach; primary schooling; informal economy; task; Stadi za Kazi Vocational Skill ; education for self-reliance; boundary objects; artisan; Education; Pedagogik;

    Sammanfattning : The purpose of this thesis is to explore the relationship between school and working life in Tanzania; what goes on inside school in relation to what goes on outside. The focus is on vocational skills formation by which is understood the process whereby individuals develop skills necessary for everyday life and gainful employment. LÄS MER

  5. 14. Fuel Ethanol Production from Corn Stover: Optimization of Steam Pretreatment and Improvement of Simultaneous Saccharification and Fermentation

    Författare :Karin Öhgren; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fuels and explosives technology; petrochemistry; Carbochemistry; Kemiteknik och kemisk teknologi; Chemical technology and engineering; Energiforskning; corn stover; Energy research; prehydrolysis; enzymatic hydrolysis; SSF; SO2; steam pretreatment; Ethanol production; Petrokemi; bränslen; sprängämnen; pentose fermentation;

    Sammanfattning : Fuel ethanol, produced from biomass, could well be tomorrow's replacement for gasoline. This thesis deals with the production of fuel ethanol from corn stover using an enzymatic process consisting of the following main steps: steam pretreatment of the raw material, enzymatic hydrolysis, fermentation of the sugars and ethanol refining. LÄS MER

  7. 15. Lipase-Mediated Syntheses of Trimethylolpropane-Based Biolubricant and Cyclic Carbonate

    Författare :Amin Bornadel; Bioteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Abstract Biocatalysis is considered as benign and efficient alternative to chemical catalysis for organic syntheses. Lipases are the most versatile biological catalysts implemented so far with great potential for production of different chemicals and materials in non-conventional reaction media. LÄS MER