Seasonal patterns in Arctic planktonic metabolism (Fram Strait – Svalbard region)

Autor: R. Vaquer-Sunyer, C. M. Duarte, J. Holding, A. Regaudie-de-Gioux, L. S. García-Corral, M. Reigstad, P. Wassmann

Publikováno v: Biogeosciences, Vol 10, Iss 3, Pp 1451-1469 (2013)

The metabolism of the Arctic Ocean is marked by extremely pronounced seasonality and spatial heterogeneity associated with light conditions, ice cover, water masses and nutrient availability. Here we report the marine planktonic metabolic rates (net

Externí odkaz: https://doaj.org/article/fd455f52d9554cb0a0aff8c2ff57ef5e

An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River

Autor: E. W. Willcox, J. Bendtsen, J. Mortensen, C. Mohn, M. Lemes, T.‐J. Pedersen, J. Holding, E. F. Møller, M. K. Sejr, M.‐S. Seidenkrantz, S. Rysgaard

Publikováno v: Willcox, E W, Bendtsen, J, Mortensen, J, Mohn, C, Lemes, M, Pedersen, T J, Holding, J, Møller, E F, Sejr, M K, Seidenkrantz, M S & Rysgaard, S 2023, ' An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River ', Journal of Geophysical Research: Oceans, vol. 128, no. 4, e2022JC019052 . https://doi.org/10.1029/2022JC019052
Willcox, E W, Bendtsen, J, Mortensen, J, Mohn, C, Lemes, M, Pedersen, T J, Holding, J, Møller, E F, Sejr, M K, Seidenkrantz, M-S & Rysgaard, S 2023, ' An Updated View of the Water Masses on the Northeast Greenland Shelf and Their Link to the Laptev Sea and Lena River ', Journal of Geophysical Research: Oceans, vol. 128, no. 4, e2022JC019052 . https://doi.org/10.1029/2022JC019052

The Northeast Greenland shelf is a broad Arctic shelf located between Greenland and Fram Strait. It is the principal gateway for sea ice export and sea ice-associated freshwater from the Arctic Ocean. Sea ice thickness has decreased by 15% per decade

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ffacb6d37a523c1ec9c897a9fe3f2d0
https://pure.au.dk/portal/da/publications/an-updated-view-of-the-water-masses-on-the-northeast-greenland-shelf-and-their-link-to-the-laptev-sea-and-lena-river(049e6efb-6f7b-4f2f-bb55-c9dc9dc24eed).html

Thermo‐Reversible Cellulose Micro Phase‐Separation in Mixtures of Methyltributylphosphonium Acetate and γ‐Valerolactone or DMSO

Autor: Ashley J. Holding, Jingwen Xia, Michael Hummel, Harry Zwiers, Matti Leskinen, Daniel Rico del Cerro, Sami Hietala, Martin Nieger, Marianna Kemell, Jussi K. J. Helminen, Vladimir Aseyev, Heikki Tenhu, Ilkka Kilpeläinen, Alistair W. T. King

Publikováno v: Holding, A J, Xia, J, Hummel, M, Zwiers, H, Leskinen, M, Rico del Cerro, D, Hietala, S, Nieger, M, Kemell, M, Helminen, J K J, Aseyev, V, Tenhu, H, Kilpeläinen, I & King, A W T 2022, ' Thermo-Reversible Cellulose Micro Phase-Separation in Mixtures of Methyltributylphosphonium Acetate and γ-Valerolactone or DMSO ', ChemPhysChem, vol. 23, no. 7, e202100635 . https://doi.org/10.1002/cphc.202100635

Funding Information: This work made use of the Aalto University Nanomicroscopy Center (Aalto‐NMC) premises, The facilities of the ALD center Finland research infrastructure were exploited for SEM imaging. Financial support from the Academy of Finla

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e46a48f7e561abb59bf931e1b28a4c05
https://doi.org/10.1002/cphc.202100635

Liquid-State NMR Analysis of Nanocelluloses

Autor: Harri August Heikkinen, Sami Heikkinen, Ashley J. Holding, Harri Koskela, Ilkka Kilpeläinen, Gabriel Partl, Alistair W. T. King, Valtteri Mäkelä, Stephanie A. Kedzior, Tiina Laaksonen, Emily D. Cranston

Publikováno v: King, A W T, Mäkelä, V, Kedzior, S A, Laaksonen, T, Partl, G J, Heikkinen, S, Koskela, H, Heikkinen, H A, Holding, A J, Cranston, E D & Kilpeläinen, I 2018, ' Liquid-State NMR Analysis of Nanocelluloses ', Biomacromolecules, vol. 19, no. 7, pp. 2708-2720 . https://doi.org/10.1021/acs.biomac.8b00295

Recent developments in ionic liquid electrolytes for cellulose or biomass dissolution has also allowed for high-resolution 1 H and 13 C NMR on very high molecular weight cellulose. This permits the development of advanced liquid-state quantitative NM

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c8f830f1ffd28be6150d0ecce84e77a
https://doi.org/10.1021/acs.biomac.8b00295

Solution-State One- and Two-Dimensional NMR Spectroscopy of High-Molecular-Weight Cellulose

Autor: Lasse Tolonen, Ilkka Kilpeläinen, Alistair W. T. King, Valtteri Mäkelä, Ashley J. Holding, Herbert Sixta

Publikováno v: Holding, A J, Mäkelä, V, Tolonen, L, Sixta, H, Kilpeläinen, I & King, A W T 2016, ' Solution-State One-and Two-Dimensional NMR Spectroscopy of High-Molecular-Weight Cellulose ', ChemSusChem, vol. 9, no. 8, pp. 880-892 . https://doi.org/10.1002/cssc.201501511

High-molecular-weight celluloses (which even include bacterial cellulose) can be dissolved fully in methyltrioctylphosphonium acetate/[D6]DMSO solutions to allow the measurement of resonance-overlap-free 1 D and 2 D NMR spectra. This is achieved by a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19591b09334b46c9bd00d145c714795c
https://doi.org/10.1002/cssc.201501511