Blar i Faculty of Mathematics and Natural Sciences på tittel
Viser treff 2073-2092 av 9947
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Diurnal temperature range as a key predictor of plants’ elevation ranges globally
(Journal article; Peer reviewed, 2023)A prominent hypothesis in ecology is that larger species ranges are found in more variable climates because species develop broader environmental tolerances, predicting a positive range size-temperature variability ... -
Dive to survive: effects of capture depth on barotrauma and post-release survival of Atlantic cod (Gadus morhua) in recreational fisheries
(Peer reviewed; Journal article, 2015-06-04)Atlantic cod (Gadus morhua) caught in recreational fisheries are commonly released, often with barotrauma after rapid decompression. Mouth-hooked, non-bleeding cod kept in a floating net pen showed mortalities ≥40% when ... -
Diverse Collections in Matroids and Graphs
(Journal article; Peer reviewed, 2021)We investigate the parameterized complexity of finding diverse sets of solutions to three fundamental combinatorial problems, two from the theory of matroids and the third from graph theory. The input to the Weighted Diverse ... -
Diverse collections in matroids and graphs
(Journal article; Peer reviewed, 2023)We investigate the parameterized complexity of finding diverse sets of solutions to three fundamental combinatorial problems. The input to the Weighted Diverse Bases problem consists of a matroid M, a weight function ω : ... -
Diverse Pairs of Matchings
(Journal article; Peer reviewed, 2020)We initiate the study of the Diverse Pair of (Maximum/ Perfect) Matchings problems which given a graph G and an integer k, ask whether G has two (maximum/perfect) matchings whose symmetric difference is at least k. Diverse ... -
Diversification in evolutionary arenas—Assessment and synthesis
(Journal article; Peer reviewed, 2020)Understanding how and why rates of evolutionary diversification vary is a key issue in evolutionary biology, ecology, and biogeography. Evolutionary rates are the net result of interacting processes summarized under concepts ... -
Diversified Farming Systems: Impacts and Adaptive Responses to the COVID-19 Pandemic in the United States, Norway and China
(Journal article; Peer reviewed, 2022)The COVID-19 pandemic fully exposed the vulnerability of the global agri-food system to shocks and stresses, highlighting the need for transformation and action to make it more resilient and inclusive. This paper offers a ... -
Diversity and metabolic energy in bacteria
(Journal article; Peer reviewed, 2023)Why are some groups of bacteria more diverse than others? We hypothesize that the metabolic energy available to a bacterial functional group (a biogeochemical group or ‘guild’) has a role in such a group’s taxonomic ... -
Diversity of dsDNA marine viral groups during winter in the Arctic Ocean north of Svalbard
(Master thesis, 2015-10-22)Extreme changes in light and cold water temperatures throughout the annual cycle in the Arctic Ocean create a unique habitat that selects for particular microorganisms - including marine viruses. This study investigated ... -
Diversity of solutions: An exploration through the lens of fixed-parameter tractability theory
(Journal article; Peer reviewed, 2022)When modeling an application of practical relevance as an instance of a combinatorial problem X, we are often interested not merely in finding one optimal solution for that instance, but in finding a sufficiently diverse ... -
Diversity, distribution and phylogenetic affinities of deep-sea lithistids (Porifera, Heteroscleromorpha) of the Azores archipelago
(Journal article; Peer reviewed, 2021-05-28)Lithistid sponges are globally distributed in temperate and sub-tropical areas, constituting an important component of deep-sea benthic communities where they form structurally complex and vulnerable marine ecosystems ... -
Diversity, stratification and in situ metabolism of anaerobic methanotrophic archaea in Nyegga cold seeps
(Doctoral thesis, 2012-06-08)Anaerobic methanotrophic Archaea (ANME) have considerable importance in a global environmental context as they are considered the major biological sink for methane due to their ubiquitous distribution in anaerobic ... -
Divided differences and ideals generated by symmetric polynomials
(Department of Pure Mathematics report no. 59, Research report, 1991-04) -
Djupneforståing i tradisjonelle prøvar - Ein kvalitativ studie av kapittelprøvar og elevsvar frå programfag i kjemi
(Master thesis, 2021-12-20)Skriftlege prøvar er ei mykje brukt vurderingsform i norsk skule, også i programfaga kjemi 1 og kjemi 2. Dei er nokså enkle å gjennomføre, ein får testa mykje på ein gong, og elevane er vane med at produksjon av skriftlege ... -
DMAEMA-grafted cellulose as an imprinted adsorbent for the selective adsorption of 4-nitrophenol
(Journal article; Peer reviewed, 2021)4-Nitrophenol is a highly toxic environmental pollutant. It is a challenge to selectively remove it from a mixture of various pollutants. Herein, we report a study on the selective adsorption of 4-nitrophenol by using ... -
DNA and scale reading to identify repeat spawning in Atlantic salmon: Unique insights into patterns of iteroparity
(Journal article; Peer reviewed, 2023)Iteroparity represents an important but often overlooked component of life history in anadromous Atlantic salmon. Here, we combined individual DNA profiling and scale reading to identify repeat spawners among ~8000 adult ... -
A DNA barcode survey of marine macroalgae from Bergen (Norway)
(Peer reviewed; Journal article, 2019)Safeguarding the services provided by marine forests inherently depends on an accurate understanding of macroalgal species diversity. Here, we provide the first DNA barcode survey of marine macroalgae from Norway, with a ... -
DNA-analysis to monitor fisheries and aquaculture: Too costly?
(Peer reviewed; Journal article, 2019-03)Evidence from DNA‐analysis is commonplace in human criminal investigations, and while it is increasingly being used in wildlife crime, to date, its application to control and enforcement activities in fisheries and aquaculture ... -
Do abnormal serum lipid levels increase the risk of chronic low back pain? The Nord-Trøndelag Health Study
(Peer reviewed; Journal article, 2014-09-18)Background: Cross-sectional studies suggest associations between abnormal lipid levels and prevalence of low back pain (LBP), but it is not known if there is any causal relationship. Objective: The objective was to determine, ... -
Do ampharetids take sedimented steps between vents and seeps? Phylogeny and habitat-use of Ampharetidae (Annelida, Terebelliformia) in chemosynthesis-based ecosystems
(Peer reviewed; Journal article, 2017-10-31)Background: A range of higher animal taxa are shared across various chemosynthesis-based ecosystems (CBEs), which demonstrates the evolutionary link between these habitats, but on a global scale the number of species ...