Sökning: "Amphibia"
Hittade 4 avhandlingar innehållade ordet Amphibia.
1. Species Limits, and Evolutionary History of Glassfrogs
Sammanfattning : Recognizing the mechanisms of speciation and the limits of species is essential to understand the origin of biodiversity and how to conserve it. The general aims of my investigations during my doctoral studies were two-fold: to study evolutionary patterns and processes, and to provide specific and superspecific taxonomic classifications that try to reflect evolutionary history. LÄS MER
2. Mitochondrial differentiation during the early development of the amphibian embryo
Sammanfattning : Mitochondria from Xenopus laevis and Ambystoma mexica- num embryos between fertilization and the beginning of feeding were studied: the former with respect to metabolic behaviour, enzyme pattern and carrier activity, and the latter with respect to morphological parameters.The metabolic behaviour of mitochondria was studied by assessing the rates of oxygen uptake in presence of various substrates. LÄS MER
3. 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
Sammanfattning : .... LÄS MER
4. Signaling for color change in melanophores : and a biosensor application
Sammanfattning : Melanophores are dark brown pigment cells located in the skin of fish, amphibia, reptiles, and many invertebrates. The color of the animal can change via rearrangement of pigment granules, melanosomes, in the cells. The dark melanophores can either hide colorful cells so that the animal appears dark, or let through colors from underneath. LÄS MER