Blar i Department of Biological Sciences på tittel
Viser treff 1875-1894 av 2216
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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 ... -
Setting reference levels and limits for good ecological condition in terrestrial ecosystems – Insights from a case study based on the IBECA approach
(Journal article; Peer reviewed, 2020-09)Effective evidence-based nature conservation and habitat management relies on developing and refining our methodological toolbox for detecting critical ecological changes at an early stage. This requires not only optimizing ... -
The Seven Sisters Hydrothermal System: First Record of Shallow Hybrid Mineralization Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge
(Journal article; Peer reviewed, 2020)We document the discovery of an active, shallow, seafloor hydrothermal system (known as the Seven Sisters Vent Field) hosted in mafic volcaniclasts at a mid-ocean ridge setting. The vent field is located at the southern ... -
Sewage-based surveillance shows presence of Klebsiella pneumoniae resistant against last resort antibiotics in the population in Bergen, Norway
(Journal article; Peer reviewed, 2022)The aim of this study was to understand the prevalence of antibiotic resistance in Klebsiella pneumoniae present in the population in Bergen city, Norway using city-scale sewage-based surveillance, as well as the potential ... -
Sex differences in the early life stages of the salmon louse Lepeophtheirus salmonis (Copepoda: Caligidae)
(Journal article; Peer reviewed, 2022)Salmon lice are ectoparasites on salmonids and feed on blood, mucus, and skin from their hosts. This causes high annual costs for treatment and control for the aquaculture industry. Salmon lice have a life cycle consisting ... -
Sex differentiation in Atlantic cod (Gadus morhua L.): morphological and gene expression studies
(Peer reviewed; Journal article, 2012-06-18)Background: In differentiated gonochoristic species, a bipotential gonad develops into an ovary or testis during sex differentiation. Knowledge about this process is necessary to improve methods for masculinizing genetically ... -
Sexual dimorphism of drumming muscles in European hake (Merluccius merluccius)
(Peer reviewed; Journal article, 2010)Dissections of mature and non-mature European hake males and females (N = 142) collected in waters off the western coast of Norway and in the Bay of Biscay (France) in 2004–2006 demonstrate for the first time that this ...