Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Johan Asp"'
Publikováno v:
Physica Medica. 65:15-20
An investigation into the response of optical fibres to 16.5 MeV protons is presented here. A silica and a poly(methyl methacrylate) (PMMA) optical fibre was exposed to 16.5 MeV protons from a GE PETtrace cyclotron.The optical fibres were exposed to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ed502849b483f6131966981233f5e95
https://doi.org/10.1016/j.ejmp.2019.08.001
https://doi.org/10.1016/j.ejmp.2019.08.001
Publikováno v:
Medical physicsReferences. 47(2)
Purpose: Protons and heavy ions are considered to be ideal particles for use in external beam radiotherapy due to the superior properties of the dose distribution. While a photon (x-ray) beam delivers considerable dose to healthy tissues around the t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ae3657176704bf6ddc52d29cdf4c19a
https://pubmed.ncbi.nlm.nih.gov/31778235
https://pubmed.ncbi.nlm.nih.gov/31778235
Autor:
Ruben E. Roos, Johan Asplund, Tone Birkemoe, Aud H. Halbritter, Siri Lie Olsen, Linn Vassvik, Kristel van Zuijlen, Kari Klanderud
Publikováno v:
Arctic Science, Vol 9, Iss 2, Pp 430-450 (2023)
The International Tundra Experiment (ITEX) was established to understand how environmental change impacts Arctic and alpine ecosystems. The success of the ITEX network has allowed for several important across-site syntheses, and for some ITEX sites e
Externí odkaz:
https://doaj.org/article/78b98ed4f8d54c3da75048c5dbeacd19
Autor:
Vilde L. Haukenes, Johan Asplund, Lisa Åsgård, Jørund Rolstad, Ken Olaf Storaunet, Mikael Ohlson
Publikováno v:
Ecosphere, Vol 14, Iss 11, Pp n/a-n/a (2023)
Abstract Fire in the boreal forests emits substantial amounts of organically bound carbon (C) to the atmosphere and converts a fraction of the burnt organic matter into charcoal, which in turn is highly refractory and functions as a long‐term stabl
Externí odkaz:
https://doaj.org/article/8b22f623d4ba468d8aa22176b34badcd
Publikováno v:
Basic and Applied Ecology, Vol 62, Iss , Pp 45-60 (2022)
Foundation species provide habitat and modify the availability of resources to other species. In nature, multiple foundation species may occur in mixture, but little is known on how their interactions shape the community assembly of associated specie
Externí odkaz:
https://doaj.org/article/452a0353ad0e45bb9f8c365cb9e879a6
For the first time the feasibility of using beryllium oxide (BeO) ceramics as a fibre-coupled radioluminescent dosimeter is investigated. BeO ceramic exhibits both radioluminescence (RL) and optically stimulated luminescence (OSL), and has the potent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f42a1b11262ac9f50b1a859ac0e006c0
https://hdl.handle.net/1959.8/162236
https://hdl.handle.net/1959.8/162236
Publikováno v:
Arctic, Antarctic, and Alpine Research, Vol 52, Iss 1, Pp 312-322 (2020)
Lichen heaths are declining in abundance while shrubs are increasing their range in alpine and arctic areas due to climate change. This can have a large impact on the surface albedo of these areas. The aim of this article is to quantify the differenc
Externí odkaz:
https://doaj.org/article/39cd75b6f1724517b0e8f3fae7faf9ea
Autor:
Ruben Erik Roos, Tone Birkemoe, Johan Asplund, Peter Ľuptáčik, Natália Raschmanová, Juha M. Alatalo, Siri Lie Olsen, Kari Klanderud
Publikováno v:
Ecosphere, Vol 11, Iss 2, Pp n/a-n/a (2020)
Abstract Global change experiments such as experimental warming and nutrient addition strongly affect the structure and functioning of high latitude and altitude ecosystems. However, it is often unknown to what extend such effects are permanent or wh
Externí odkaz:
https://doaj.org/article/801793c3d1a949029e811942c52da7d8
Autor:
Christopher J. Ellis, Johan Asplund, Renato Benesperi, Cristina Branquinho, Luca Di Nuzzo, Pilar Hurtado, Isabel Martínez, Paula Matos, Juri Nascimbene, Pedro Pinho, María Prieto, Bernardo Rocha, Clara Rodríguez-Arribas, Holger Thüs, Paolo Giordani
Publikováno v:
Microorganisms, Vol 9, Iss 4, p 766 (2021)
Community ecology has experienced a major transition, from a focus on patterns in taxonomic composition, to revealing the processes underlying community assembly through the analysis of species functional traits. The power of the functional trait app
Externí odkaz:
https://doaj.org/article/ca523595fd41402697fd50e0a3564aeb
Publikováno v:
Frontiers in Plant Science, Vol 9 (2018)
Nitrogen availability limits growth in most boreal forests. However, parts of the boreal zone receive significant levels of nitrogen deposition. At the same time, forests are fertilized to increase volume growth and carbon sequestration. No matter th
Externí odkaz:
https://doaj.org/article/09455a7a65c841d6b407aff65e6713e1