Sökning: "colour factors"

Visar resultat 16 - 20 av 55 avhandlingar innehållade orden colour factors.

1. 16. Aspects of QCD and the Photon Structure

   Författare :Christer Friberg; Teoretisk partikelfysik - Geonomgår omorganisation; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; High energy interactions; QCD; Photons; Monte Carlo Event Generator; Leptoquarks; Colour Connections; cosmic rays; Kosmisk strålning; högenergi; Fysicumarkivet A:2000:Friberg;

   Sammanfattning : In a single theoretical framework, real and virtual photon interactions are modeled for gamma-p and gamma-gamma collisions. The description covers aspects from the production of jets to total cross sections, where special emphasis is put on the range of uncertainty in the modeling of a resolved photon component. LÄS MER

3. 17. Defence on Demand : A physiological perspective on phenotypic plasticity in anti-predator traits

   Författare :Jerker Vinterstare; Enhet akvatisk ekologi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phenotypic plasticity; inducible defences; stress physiology; cortisol; immune function; trade-offs; sexual dimorphism; crucian carp; visual ecology; predator-prey interactions; POMC pro-opiomelanocortin ; colour change; eco-immunology; Anti-predator defences; Inducible morphological defence; Phenotypic plasticity; Stress physiology; Cortisol; Immune function; Crucian carp; Predator-prey interactions; Trade-offs; Sexual dimorphism; POMC; Pro-opiomelanocortin; Visual ecology; Eye evolution; Melanin; Eco-immunology; Pace-of-life; Behavioural plasticity;

   Sammanfattning : Almost all species face some degree of predation risk, and, hence, evolution has produced a plethora of anti-predator defences. However, anti-predator strategies require resources, and the prevailing risk of becoming prey is influenced by many factors and rarely constant across time and space. LÄS MER

4. 18. Structuring factors for macroinvertebrate communities and the importance for ecosystem processing

   Författare :Pia Hertonsson; Biologiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ephemeroptera; competition; Predation risk; brownification; invasive sp.; decomposition; grazing; growth; gastropoda; mortality; amphipoda; isopoda;

   Sammanfattning : Aquatic macroinvertebrates play important roles in our ecosystems and are essential for the ecosystem processing. An improved knowledge of structuring factors, such as competition and predation, and the way in which they operates in the macroinvertebrate community is crucial for our understanding of not only the macroinvertebrates but also the ecosystem in general. LÄS MER

5. 19. There is no easy answer : Factors affecting meat quality in lambs

   Författare :Elin Stenberg; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

   Sammanfattning : This thesis examined the effects of production system, slaughter method, carcass handling procedures and storage method on the quality of meat from intact male lambs. Quality aspects of the meat assessed were carcass quality, meat quality indicators (measured on carcasses), technological meat quality (measured on meat samples) and sensory attributes. LÄS MER

7. 20. Green Is Not Just Green : human colour perception in urban green contexts

   Författare :Petra Thorpert; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

   Sammanfattning : The thesis is intended to be part of a larger process and field, by helping to increase understanding of how changed colour characteristics in urban green spaces can influence human experiences. More specifically, the thesis explores whether human colour perception is influenced by factors such as viewing distance, seasons, species mixture, or colourful artefacts incorporated in urban green spaces. LÄS MER