Sökning: "Grodor"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet Grodor.

  1. 1. Amphibia Gyllenborgiana, dissertatione academica, cum consensu ampliss. Facultatis Medicæ in Regia Academia Upsaliensi, præside ... doct. Carolo Linnæo, med. & botan. profess. reg. & ord. descripta et publico examini subjecta a Barth. Rudolpho Hast, Ostrobothniensi, stipendiario regio. In audit. Carolino Majori die XVIII. Junii. Anni MDCCXLV. Horis, ante meridiem, solitis

    Författare :Carl von Linné; Barthold Rudolf Hast; Uppsala universitet; []
    Nyckelord :Snakes; Lizards; Ranidae; Natural history; Natural history; Frogs; Ranidae; Snakes; Lizards; Ormar; Ödlor; Grodor; Sköldpaddor; Naturaliesamlingar;

    Sammanfattning : .... LÄS MER

  3. 2. Development of central catecholaminergic neuronal systems in the lizard Anolis sagrei

    Författare :Agneta Rehn; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; double labelling; immunohistochemistry; interplexiform cells; amacrine cells; catecholamines; development; retina; Reptiles; brain; Zoology; Zoologi;

    Sammanfattning : Catecholamines, comprising the neurotransmitters dopamine (DA), noradrenaline (NA) and adrenaline (A) are synthesized by specific enzymes (tyrosine hydroxylase (TH), dopamine ß-hydroxylase (DBH), phenylethanolamine-N-methyltransferase (PNMT)) in the central nervous system. The development and distribution of different catecholaminergic systems have been described in both the brain and retina of the lizard Anolis sagrei. LÄS MER

  4. 3. Phenotypic plasticity and local adaptation in tadpoles

    Författare :Björn Lardner; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; salinity tolerance; trade-off; life-history; tail depth; inducible defence; antipredator strategies; tadpoles; anurans; amphibians; Phenotypic plasticity; local adaptation; competitive ability; allozymes.; Animal ecology; Djurekologi;

    Sammanfattning : Amphibian larvae are plastic in many traits. Can plasticity buffer population divergence, so that local adaptation is more common in non-plastic traits? I argue that this may be the case for adaptive plastic responses. LÄS MER

  5. 4. Midkine - a host defence protein

    Författare :Sara Nordin; allergologi och palliativ medicin Lungmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Antimicrobial polypeptides; Midkine; antibacterial; antifungal; innate immunity; epithelial surfaces;

    Sammanfattning : Every day we encounter many potentially harmful microbes in our environment. The epithelial linings constitute an anatomical barrier protecting us and they also produce antimicrobial polypeptides (AMPs) that act as a chemical barrier. These AMPs are small and positively charged, killing a broad range of microbes rapidly. LÄS MER

  7. 5. Polybrominated diphenylethers in the environment - Local and long range transport

    Författare :Arnout ter Schure; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Substance Flow Analysis; Spatial Variation; Sources; PCB; PBDE; Latitude; Global Fractionation; Frogs; Deposition; Atmosphere; Baltic Sea; Ekologi; Temperature; Washout ratio; Ecology;

    Sammanfattning : I have studied the sources, long range transport, and rates of flow of polybrominated diphenyl ethers (PBDEs), from the technosphere to the Baltic ecosystems. PBDEs are mainly used in polymers, which are applied in electrical equipment to prevent overheating or flashover and are produced in large quantities. LÄS MER