Sökning: "temperature stress"

Visar resultat 1 - 5 av 425 avhandlingar innehållade orden temperature stress.

  1. 1. Coping with Stress Regulation of the Caulobacter crescentus cell cycle in response to environmental cues

    Detta är en avhandling från Stockholm : Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University

    Författare :Kristina Heinrich; Kristina Jonas; Emanuele Biondi; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Caulobacter crescentus; bacteria; cell cycle; stress; filamentation; cell morphology; DNA replication; cell division; molekylär biovetenskap; Molecular Bioscience;

    Sammanfattning : All organisms have to respond to environmental changes to maintain cellular and genome integrity. In particular, unicellular organisms like bacteria must be able to analyze their surroundings and rapidly adjust their growth mode and cell cycle program in response to environmental changes, such as changes in nutrient availability, temperature, osmolarity, or pH. LÄS MER

  2. 2. The conserved methionines in the chloroplast small heat shock protein - Role in chaperone-substrate interactions and effects of methionine sulfoxidation on chaperone activity

    Detta är en avhandling från Department of Biochemistry, Lund University

    Författare :Niklas Gustavsson; [2001]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Metabolism; Biochemistry; oxidative stress; thermostability; temperature stress; stress tolerance; sHsp; protein aggregation; molecular chaperone; Heat stress; methionine sulfoxidation; Biokemi; metabolism; Plant biochemistry; Växtbiokemi;

    Sammanfattning : The chloroplast-localized small heat shock protein (sHsp) Hsp21 belongs to the family of alpha-crystallin like sHsps which form large oligomeric structures and protect partly unfolded aggregation-prone proteins against aggregation. The main focus for this thesis has been on the highly conserved methionines in Hsp21. LÄS MER

  3. 3. From behaviour to genes: anti-predator responses of brown trout (Salmo trutta) under winter conditions

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Karl Filipsson; Eva Bergman; Ann Erlandsson; Martin Österling; Johan Watz; Stefán Óli Steingrímsson; [2020]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; burbot; climate change; cortisol; diel behaviour; gene expression; HPI axis; light; mRNA; piscivorous; poikilotherm; predator; salmonid; stream; stress; temperature; thermal; winter behaviour; Biology; Biologi;

    Sammanfattning : Temperature has major effects on the performance of poikilotherms. In encounters with predators, low winter temperatures constrain predator detection and escape capabilities in prey fishes. LÄS MER

  4. 4. Salmonid behaviour under winter conditions

    Detta är en avhandling från Karlstad : Karlstads universitet

    Författare :Johan Watz; Karlstads universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; climate change; drift; energy budget; foraging; grayling; ice cover; lotic; metabolic rate; predation; salmon; stream; stress; temperature; trout; Biology; Biologi;

    Sammanfattning : Winter conditions are believed to play an important role in the population dynamics of northern temperate stream fish, challenging the ability of fish to physiologically and behaviourally adapt. Climate change is predicted to increase both mean temperature and temperature fluctuations, especially during winter, leading to dynamic environmental conditions in terms of river ice production and flow. LÄS MER

  5. 5. Psychological and physiological effects on Swedish worker’s health when using a health promotion intervention including mechanical massage and mental training - a pilot study

    Detta är en avhandling från Jönköping : Jönköping University, School of Health and Welfare

    Författare :Jasmin Muller; Högskolan i Jönköping.; [2018]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Alternative; Anxiety; Blood pressure; Complementary; Heart rate; Intervention; Massage; Physical Health; Psychosocial health; Randomized controlled study; Salutogenic theory; Stress; Temperature; Working place;

    Sammanfattning : Introduction:Work-related stress is one of the most challenging issues on workplaces. Reduced ability to relax and recover has been proposed as a key factor behind the increase of stress-related illness among workers. Massage and mental training are two commonly used techniques which may have positive effects on the ability to recover. LÄS MER