Search for dissertations about: "NATURAL SCIENCES Biology Organism biology Microbiology"
Showing result 21 - 25 of 31 swedish dissertations containing the words NATURAL SCIENCES Biology Organism biology Microbiology.
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21. The Origin of Tetrapod Limbs and Girdles: Fossil and Developmental Evidence
Abstract : Around 375 million years ago, the first tetrapods appeared, marking one of the most important events in vertebrate evolutionary history. The fin to limb transition saw the appearance of fingers and a weight bearing pelvic girdle. READ MORE
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22. Proteostasis in Bacillus subtilis : chaperones and stress-response mechanisms
Abstract : The maintenance of protein homeostasis, also referred to as proteostasis, is essential for preserving the structural and functional stability of the proteome in living organisms. This involves the precise control of protein synthesis, folding, and degradation. READ MORE
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23. Endocranial Morphology and Phylogeny of Palaeozoic Gnathostomes (Jawed Vertebrates)
Abstract : Gnathostomes, or jawed vertebrates, make up the overwhelming majority of modern vertebrate diversity. Among living vertebrates, they comprise the chondrichthyans (“cartilaginous fishes” such as sharks, skates, rays, chimaeras) and the osteichthyans (“bony fishes” or bony vertebrates, inclusive of tetrapods). READ MORE
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24. Cardiovascular and hematological responses to voluntary apnea in humans
Abstract : This thesis deals with cardiovascular and hematological responses to voluntary apnea in humans, with a special focus on O2 usage and storage. Humans, and many other air‐breathing animals, respond to apnea (breath holding) with a collection of interacting cardiovascular reflexes, which are collectively called the diving response. READ MORE
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25. Evolution of New Genes and Functions
Abstract : To answer major evolutionary questions, we need a better understanding of the effects of mutations on specific functions and organism fitness. The aim of this thesis was to elucidate how new functions evolve and potential trade-offs with the original function. READ MORE