Blar i Department of Biological Sciences på tittel
Viser treff 1861-1880 av 2204
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The seasonally dry tropical forest species Cavanillesia chicamochae has a middle Quaternary origin
(Journal article; Peer reviewed, 2021)We use DNA sequence data to understand the evolutionary history of the genus Cavanillesia (Malvaceae), with particular emphasis on C. chicamochae, an emblematic succulent-trunked tree endemic to seasonally dry tropical ... -
Secchi disk measurements in turbid water
(Journal article; Peer reviewed, 2020)In the classical theory of the Secchi disk depth, diffuse sunlight falling on the disk is reflected back to the observer's eye along the most direct route, as a beam. The disappearance depth, ZSD, of the disk is then ... -
Secretory vesicle protein homologues in choanoflagellates
(Doctoral thesis, 2023-12-15)Regulert vesikeleksocytose, som i tilfellet med høyt spesialisert synaptisk vesikelsekresjon, styres av et sett evolusjonært konserverte proteiner. Mange av disse proteinene er eldre enn dyrene. Målet med denne avhandlingen ... -
Sedation and slaughter of Atlantic salmon (Salmo salar, L.) with carbon monoxide, and a possible regulatory role of neuroglobin
(Doctoral thesis, 2012-10-05)Until recently CO2 has been utilized as an anesthetic method before gill cutting of Norwegian Atlantic salmon farmed fish. From 1. July 2012 this is no longer permitted in Norway since it causes strong aversive reactions ... -
Seed banks are biodiversity reservoirs: species–area relationships above versus below ground
(Peer reviewed; Journal article, 2015-05-26)Soil seed banks offer plants the possibility to disperse through time. This has implications for population and community dynamics, as recognised by ecological and evolutionary theory. In contrast, the conservation and ... -
Seedbank, Seedrain and Seedling Recruitment along Climate Gradients in Southern Norway
(Master thesis, 2010-06-01)Recruitment through seeds is a critical process in the life history of plants. Better knowledge about this process may be helpful in predicting species ranges and range shifts under climate change. In western Norway, the ... -
Seeing the wood for the trees: Carbon storage and conservation in temperate forests of the Himalayas
(Journal article; Peer reviewed, 2021)Forests have a prominent role to play in the success of the UN’s Agenda 2030, thus actions to halt deforestation are high on the international sustainability agenda. As humans are altering the composition and extent of ... -
The selenium content of SEPP1 versus selenium requirements in vertebrates
(Peer reviewed; Journal article, 2015-09-10)Selenoprotein P (SEPP1) distributes selenium (Se) throughout the body via the circulatory system. For vertebrates, the Se content of SEPP1 varies from 7 to 18 Se atoms depending on the species, but the reason for this ... -
Semaphorin Signalling in Neuronal and Vascular Development in the Tooth
(Doctoral thesis, 2016-06-07)Background: The tooth is a well-established model in which to study molecular signaling that regulates organ morphogenesis. Previously, organ-specific innervation of the tooth and its molecular regulation has, to some ... -
A sensetive zonagenetic assay for rapid in vivo assessment of estrogenic potency of xenobiotics and mycotoxins
(Peer reviewed; Journal article, 1999-01)Mounting evidence confirms that hepatic biosynthetic processes are essential for female sexual maturation in fish, which is directly controlled by estrogens. These oogenetic events (zonagenesis and vitellogenesis) are ... -
Sensitivity of euphotic zone properties to CDOM variations in marine ecosystem models
(Peer reviewed; Journal article, 2013-05-10)In marine ecosystem models, the underwater light intensity is commonly characterized by the shading of phytoplankton in addition to a background light attenuation coefficient. Colour dissolved organic matter (CDOM) is an ... -
Sensitivity of global terrestrial ecosystems to climate variability
(Peer reviewed; Journal article, 2016-03)The identification of properties that contribute to the persistence and resilience of ecosystems despite climate change constitutes a research priority of global relevance1. Here we present a novel, empirical approach to ... -
Separating blue whiting (Micromesistius poutassou Risso, 1826) from myctophid targets using multi-frequency methods
(Master thesis, 2008)Blue whiting (Micromesistius poutassou Risso, 1826) is a physoclists species, widely distributed in the Barents Sea, Norwegian Sea and Mediterranean Sea. They appear on the continental slope and shelf, in high concentration ... -
Separating NADH and NADPH fluorescence in live cells and tissues using FLIM
(Peer reviewed; Journal article, 2014-05-29)NAD is a key determinant of cellular energy metabolism. In contrast, its phosphorylated form, NADP, plays a central role in biosynthetic pathways and antioxidant defence. The reduced forms of both pyridine nucleotides are ... -
Sequence analysis and spatiotemporal developmental distribution of the Cat-1-type transporter slc7a1a in zebrafish (Danio rerio)
(Journal article; Peer reviewed, 2020)Cationic amino acid transporter 1 (Cat-1 alias Slc7a1) is a Na+-independent carrier system involved in transport and absorption of the cationic amino acids lysine, arginine, histidine, and ornithine and has also been shown ... -
Sequence divergence and diversity suggests ongoing functional diversification of vertebrate NAD metabolism
(Peer reviewed; Journal article, 2014-11)NAD is not only an important cofactor in redox reactions but has also received attention in recent yearsbecause of its physiological importance in metabolic regulation, DNA repair and signaling. In contrast tothe redox ... -
Sequence tiling as a strategy to map novel genotype-dependent cis-regulation in the HIBCH locus (2q32.2)
(Master thesis, 2021-06-01) -
Sequence variation in four mitochondrial genes of the salmon louse Lepeophtheirus salmonis
(Peer reviewed; Journal article, 2006-03-02)A total of 210 Lepeophtheirus salmonis collected from 7 locations (Scotland, Russia, Canada, Japan and 3 locations in Norway), were screened for sequence variation in 4 mitochondrial genes; ATPase subunit 6 (A6), Cytochrome ... -
Sequence-based enzyme discovery from marine microbial diversity : Multiple approaches for the heterologous expression of genes in Escherichia coli
(Doctoral thesis, 2021-06-09)The vast biodiversity of marine environments is increasingly being recognized as a source for new enzymes with value in both basic research and applications within biotechnology. In this project, the major aim was to ... -
Set in stones: the influence of long-term environmental changes on Northeast Arctic cod viewed through the analysis of otoliths
(Doctoral thesis, 2021-03-23)The living conditions of marine ecosystems are currently changing rapidly under the influence of human exploitation and contributions to climate change, especially in high latitude regions such as the Arctic. Predicting ...