Browsing Brage NMBU by Document Types "Doctoral thesis"
Now showing items 1-20 of 853
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A comparison of organic grass-clover silages from primary growth and regrowth in dairy cows
(PhD Thesis;2016:24, Doctoral thesis, 2017-12-06)The annual milk yield of Norwegian organic dairy cows increased by 18% in 2013 compared to 2007 levels. The increased milk yield in this period was achieved by increased levels of concentrate feed in the diet. Given that, ... -
A detailed study of substrate positioning in family 18 chitinases
(PhD Thesis;2011:41, Doctoral thesis, 2011)Chitin is a linear polymer consisting of β-1,4-linked N-acetyl-glucosamine (GlcNAc; A) units tightly packed in a crystalline structure. It is produced by living organisms in large quantities per year and is a structural ... -
A quantitative genetic study on the proportion of males in tilapia
(PhD Thesis;2011:63, Doctoral thesis, 2011)Early sexual maturation is one the main constraints in Tilapia farming since early breeding causes stunted growth and large size variability. To circumvent this problem all-male populations are used commercially, and ... -
A study of human chitinases with respect to the importance of surface exposed aromatic residues and carbohydrate-binding modules in substrate degradation and role in inflammations
(PhD Thesis;2015:63, Doctoral thesis, 2018-05-03)Chitin is an insoluble, linear polymer consisting of β-1, 4-linked N-acetyl-glucosamine units tightly packed in a crystalline structure. It is the second most abundant polysaccharide in nature, after cellulose, with an ... -
A study of mechanisms involved in the pathogenicity of Enterococcus faecalis by DNA microarrays
(PhD Thesis;2010:54, Doctoral thesis, 2010)Traditionally considered a harmless commensal of the mammalian gastrointestinal tract, Enterococcus faecalis now rank among the leading causes of nosocomial infections worldwide. Several genetic determinants enhancing the ... -
Abscission in poinsettia, a methodology and –omics approach
(PhD Thesis;2018:39, Doctoral thesis, 2018)Plants detach organs in a highly controlled process called abscission. Leaves, flowers, seeds, fruits, berries and even roots abscise from the plant in response to pathogens or environmental and developmental stimuli. The ... -
Access to productive assets and impact on household welfare in rural Uganda
(PhD Thesis;2011:27, Doctoral thesis, 2011)This thesis assesses the impact of access to productive assets on the welfare of rural farm households in Uganda. It consists of an introduction paper and five other independent papers. Paper I provides robust empirical ... -
Activation and recirculation of bovine natural killer cells in steady state and inflammation
(PhD Thesis;2015:40, Doctoral thesis, 2017-07-13)Natural killer (NK) cells are innate lymphocytes that act as early responders in the immune response by means of cytotoxicity and production of immunoregulatory cytokines. NK cells in cattle were described a decade ago, ... -
Activity patterns in tropical forest mammals : a pantropical assessment using camera-trap data
(PhD thesis;2024:8, Doctoral thesis, 2024) -
Adaptivity and rationality : the Didinga ethno-agrarian mode of adaptation
(Dr. Scient. Thesis;1992:19, Doctoral thesis, 1992) -
Aerobic exercise training for improving robustness of Atlantic salmon (Salmo salar)
(PhD Thesis;2012:29, Doctoral thesis, 2012)Exercise training produces a wide range of benefits to fish kept in captivity. Research has shown that among several other parameters, growth, feed efficiency, feed intake and cardiac capacity are improved. In higher ... -
Aesthetic experiences and behaviour in nature-based tourism
(PhD Thesis;2014:61, Doctoral thesis, 2014)With the increasing focus on aesthetic experiences and symbolic values of products and services, this thesis addresses central aesthetic dimensions in nature-based experiences, and how they are linked to tourist behaviour. ... -
Afar pastoralists in a changing rangeland environment
(PhD Thesis;2010:33, Doctoral thesis, 2010)Pastoralists have been using arid and semi-arid rangelands to produce their livelihood outputs through livestock production for centuries. However, recent changes in land use and associated impacts on biodiversity and ... -
Agricultural intensification in a mid-hill watershed of Nepal : socio-economic and environmental implications
(PhD Thesis;2010:39, Doctoral thesis, 2010)Agricultural intensification is unavoidable due to the food requirements of a growing population, market availability and access to agro-products, and limited productive agricultural areas in Nepal. A shift from cultivating ... -
Agricultural investments for development in Tanzania: reconciling actors, strategies and logics?
(PhD Thesis;2017:63, Doctoral thesis, 2017)Agricultural investments carry opportunities and risks for smallholders, rural communities, and the environment. This thesis investigates the potentials and limitations of smallholder-inclusive agricultural investments in ... -
Agriculture, livelihoods and climate change in Bosnia and Herzegovina : impacts, vulnerability and adaptation
(Doctoral thesis, 2018)Bosnia and Herzegovina is still recovering from the shocks caused by armed conflict during the nineties, while being faced with a long and difficult path of institutional and economic reforms of transition from central to ... -
The agronomic and environmental effects of biochar under field conditions in Norway
(PhD Thesis;2021:84, Doctoral thesis, 2021)Biochar is emerging as a promising solution for increasing carbon in soil, improving the fertility of selected soils, and mitigating N2O emissions from agricultural soils. In Norway, biochar is high on the agenda of potential ... -
Agronomic technologies in maize and their adoption and diffusion in semi-arid central Rift Valley Ethiopia : agronomic and economic analyses
(PhD Thesis;2016:12, Doctoral thesis, 2017-07-05)This thesis evaluates the agronomic and economic responses to agricultural technologies in maize, identifies the agronomic technologies reaching farmers, and assesses their adoption and diffusion. The thesis consists of ... -
Airborne hyperspectral imaging for multisensor data fusion
(PhD Thesis;2023:18, Doctoral thesis, 2023)Multisensor data fusion demand in Earth observations is constantly increasing thanks to technological advances and the willingness to explore the Earth in a multidisciplinary way. Recently hyperspectral imaging has become ... -
Alleles of adaptive importance for barley cultivation in a subarctic climate / Magnus Göransson
(PhD thesis;2023:51, Doctoral thesis, 2023)Barley is the most grown cereal in the Nordic countries, and the fourth most important cereal crop globally. Its use is mainly for feed, but a large portion is also used by the brewing industry. At northern latitudes, such ...