Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
2020
Abstract
Remediation using nanoparticles depends on proper documentation of safety aspects, one of which is their ecotoxicology. Ecotoxicology of nanoparticles has some special features: while traditional ecotoxicology aims at measuring possible negative effects of more or less soluble chemicals or dissolved elements, nanoecotoxicology aims at measuring the toxicity of particles, and its main focus is on effects that are unique to nano-sized particles, as compared to larger particles or solutes. One of the main challenges when testing the ecotoxicity of nanoparticles lies in maintaining stable and reproducible exposure conditions, and adapt these to selected test organisms and endpoints. Another challenge is to use test media that are relevant to the matrices to be treated. Testing of nanoparticles used for remediation, particularly red-ox-active Fe-based nanoparticles, should also make sure to exclude confounding effects of altered red-ox potential which are not nanoparticle-specific. Yet another unique aspect of nanoparticles used for remediation is considerations of ageing of nanoparticles in soil or water, leading to reduced toxicity over field-relevant time scales. This review discusses these and other aspects of how to design and interpret appropriate tests and use these in hazard descriptions for subsequent risk assessments.
Authors
Hilde Karine WamAbstract
In this educational tool kit, your pupils will learn about the amazing and sometimes odd ways animals have adapted to living, especially in polar extreme environments. This is part 1 of a series of three tool kits on the topic. Part 1 gives an introduction and explains principles of evolutionary adaptations in view of climate change. Part 2 is about animals in the taiga, while part 3 is about animals on the tundra.
Authors
Hilde Karine WamAbstract
In this educational tool kit, your pupils will learn about why and where there is a region called Fennoscandia. We explore cultures for the outdoors that are shared between all the countries of the region. In role play, pupils will explore how one, by learning about another’s culture, one can more easily accept it even when one does not like it.
Authors
Hilde Karine WamAbstract
Do you know what happens when an exotic species comes to a new place, where it does not belong? Can the planet be completely invaded by exotic species? What exactly is an exotic species? In this learning package, we look at how invasive species are a growing problem and how they can affect the environment, other species and even the entire global bioeconomy.
Authors
Hilde Karine WamAbstract
The taiga is the deep boreal forests of the north. Where the wolves roam, brown bears pick berries, and capercaillies sing. The biodiversity is huge, and in the taiga ecosystem, all the species are wondrously linked to each other. What happens here when the climate is changing?
Abstract
Forskningsformidling til ungdom 13-19 år. Et nettbasert undervisningstilbud som bruker naturforskning til å fremme ungdoms miljøbevissthet og interesse for vitenskap.
Abstract
Four raspberry cultivars were grown at two different latitudes namely in Geisenheim (DE, 49°60’N; 7°57’E) and in Kapp (NO, 60°42’N; 10°52’E) to investigate the impact of these growing sites on primary and secondary fruit chemical ingredients in the 2017 season. Fruits were harvested at two picking dates each with three field replications. Contents of °Brix, glucose, fructose, sucrose, organic acids, ascorbic acid, polyols, total polyphenols, and anthocyanins were analyzed in the fruits. The geographic growing sites, which in this case is more than10 latitudes between HGU in Germany and NIBIO in Norway, has partly no, partly significant effects on the primary and secondary ingredients of the investigated raspberry cultivars. In respect to the created data set, temperatures shortly before or at the picking dates were not considered. It may be expected that temperatures at harvest have an effect on the fruit ingredients and therefore on a further classification of the samples.
Abstract
No abstract has been registered
Abstract
Recycling of waste fractions from farms and greenhouses might reduce environmental pollution. However, recycling of nutrient solution in greenhouse is risky due to danger of disease spread. Nitrification bacteria can be used for aerobic conversion of ammonia to nitrate in organic waste and may function as stable microbial community protecting against pathogen attacks by enhancing induced systemic resistance of plants. We developed a hydroponic cultivation system “Organoponics” allowing growth of tomato plant on organic fertilizer with recirculation of nutrient solution. Liquid by-product of biogas production has been used as organic fertilizer. A moving-bed bioreactor was integrated in the system for aerobic nitrification of ammonia. Influence of fertilizer composition (organic, mineral matching organic, standard mineral) and addition of plant growth promoting bacteria on biomass distribution, tomato fruit quality were investigated. Plants grown on organic fertilizer were more generative with largest root index. They also produced fruits with significantly larger average size along whole cluster. Addition of the bacteria to root rhizosphere improved yield and quality parameters of plants received organic fertilization and negatively affected the same parameters in plants received mineral fertilization.
Authors
Sara Duran-Soria Delphine M. Pott William Allwood Erika Krüger Anita Sønsteby Agnieszka Masny Björn Usadel Dorota Jarret Sonia OsorioAbstract
No abstract has been registered