Sökning: "barriärer"

Visar resultat 26 - 30 av 75 avhandlingar innehållade ordet barriärer.

1. 26. Green Logistics Networks : Roles & Symbiotic Relationships

   Författare :Mary Catherine Osman; Maria Huge-Brodin; Linea Kjellsdotter Ivert; Jonas Ammenberg; Arni Hallordsson; Statens väg- och transportforskningsinstitut; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

   Sammanfattning : Logistics actors such as the transport buyer, freight forwarder, and haulier are currently in a transition phase towards more sustainable practices typically referred to as Green Logistics Practices (GLPs). One of the more progressive GLPs is completion of freight transport using fossil-free fuels such as biomethane. LÄS MER

3. 27. Den svårfångade motionären : En studie avseende etablerandet av regelbundna motionsvanor

   Författare :Anita Wester-Wedman; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; physical activity; exercises; jogging; physical and mental effects; experiences; women; hindrance and obstacles;

   Sammanfattning : The purpose of this descriptive study is to examine and describe the process of establishing regular physical exercising habits in the form of jogging, and in the context of this process, to describe the hindrance factors that stand in the way of establishing such habits; also to describe the effects and experiences, in a wide sense, of recurrent physical activities and how these effects change over time. A second purpose is to look more closely at the factors that influence the situation for women who want to take up regular physical training habits. LÄS MER

4. 28. Eco-immunological studies of innate immunity in Mallards (Anas platyrhynchos)

   Författare :Anu S. Helin; Jonas Waldenström; Edwin Veldhuizen; Linnéuniversitetet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Avian β-defensins AvBDs ; Avian gene expression; Host-pathogen interactions; Innate immunity; Mallard Anas platyrhynchos ; Myxovirus resistance gene Mx ; Retinoic acid inducible gene 1 RIG-I ; Avian β-defensins AvBD ; Genuttryck; Gräsand Anas platyrhynchos ; Immunförsvar; Immungener; Myxovirus resistant gene Mx ; Patogen; Retinoic acid inducible gene 1 RIG-I ; Ecology; Ekologi;

   Sammanfattning : This thesis comprises two sections, both of which explore eco-immunology of the innate immune system of mallards (Anas platyrhynchos). The innate immune system serves a pivotal role as the first line of defense against invading pathogens, and is comprised of physical and chemical barriers. LÄS MER

5. 29. Quantum Devices from the Assembly of Zero- and One-Dimensional Building Blocks

   Författare :Claes Thelander; Fasta tillståndets fysik; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; quantum devices; classical mechanics; quantum mechanics; relativity; statistical physics; thermodynamics; Matematisk och allmän teoretisk fysik; klassisk mekanik; kvantmekanik; relativitet; gravitation; termodynamik; statistisk fysik; Mathematical and general theoretical physics; single-electron transistor; nanowires; AFM; carbon nanotubes; Fysicumarkivet A:2003:Thelander;

   Sammanfattning : This thesis describes novel methods for the fabrication of nanometer-scale electronic devices, such as single-electron transistors and resonant tunneling diodes, from wire- and dot-shaped building blocks. The first part of the thesis describes the manipulation of metal nanoparticles and carbon nanotubes using an atomic force microscope. LÄS MER

7. 30. Nurses' caring struggle : Stress in caring within hospital emergency care during the COVID-19 pandemic

   Författare :Hillewi Carnesten; Petra von Heideken Wågert; Lena Wiklund Gustin; Susanna Toivanen; Christina Andreae; Karin Skoglund; Carina Elmqvist; Mälardalens universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Compassion; Ethical stress; Lifeworld; Moral stress; Newly graduated registered nurses; Recovery; Stress of conscience; Stress-related ill health; Suffering; Care Sciences; vårdvetenskap;

   Sammanfattning : Nurses took a frontline caregiving role during the COVID-19 pandemic in pervasively altered conditions in Swedish hospital emergency healthcare. Little is known about nurses’ experiences of the stress they were subjected to. LÄS MER