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Charcoal records of two sediment cores off SW Africa (2012)

Daniau, Anne-Laure ; Bartlein, Patrick J ; Harrison, S P ; [weitere]

PANGAEA

In: Supplement to: Daniau, Anne-Laure; Bartlein, Patrick J; Harrison, S P; Prentice, Iain Colin; Brewer, Simon; Friedlingstein, Pierre; Harrison-Prentice, T I; Inoue, J; Izumi, K; Marlon, Jennifer R; Mooney, Scott D; Power, Mitchell J; Stevenson, J; Tinner, Willy; Andric, M; Atanassova, J; Behling, Hermann; Black, M; Blarquez, O; Brown, K J; Carcaillet, C; Colhoun, Eric A; Colombaroli, Daniele; Davis, Basil A S; D'Costa, D; Dodson, John; Dupont, Lydie M; Eshetu, Z; Gavin, D G; Genries, A; Haberle, Simon G; Hallett, D J; Hope, Geoffrey; Horn, S P; Kassa, T G; Katamura, F; Kennedy, L M; Kershaw, A Peter; Krivonogov, S; Long, C; Magri, Donatella; Marinova, E; McKenzie, G Merna; Moreno, P I; Moss, Patrick T; Neumann, F H; Norstrom, E; Paitre, C; Rius, D; Roberts, Neil; Robinson, G S; Sasaki, N; Scott, Louis; Takahara, H; Terwilliger, V; Thevenon, Florian; Turner, R; Valsecchi, V G; Vannière, Boris; Walsh, M; Williams, N; Zhang, Yancheng (2012): Predictability of biomass burning in response to climate changes. Global Biogeochemical Cycles, 26(4), https://doi.org/10.1029/2011GB004249

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Publikationsdatum: 2024-05-27

Beschreibung: We analyze sedimentary charcoal records to show that the changes in fire regime over the past 21,000 yrs are predictable from changes in regional climates. Analyses of paleo- fire data show that fire increases monotonically with changes in temperature and peaks at intermediate moisture levels, and that temperature is quantitatively the most important driver of changes in biomass burning over the past 21,000 yrs. Given that a similar relationship between climate drivers and fire emerges from analyses of the interannual variability in biomass burning shown by remote-sensing observations of month-by-month burnt area between 1996 and 2008, our results signal a serious cause for concern in the face of continuing global warming.

Schlagwort(e): Center for Marine Environmental Sciences; MARUM

Materialart: Dataset

Format: application/zip, 2 datasets

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Enhanced sensitivity of the LIGO gravitational wave detector by using squeezed states of light (2013)

Aasi, J. ; Abadie, J. ; Abbott, B. P. ; [weitere]

Springer Nature

In: Nature Photonics. 2013; 7(8): 613-619. Published 2013 Jul 21. doi: 10.1038/nphoton.2013.177.

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Publikationsdatum: 2013-07-21

Print ISSN: 1749-4885

Digitale ISSN: 1749-4893

Thema: Physik

Publiziert von Springer Nature

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Summary for Policymakers (2014)

Field, C. B. ; Barros, V. R. ; Mastrandrea, M. D. ; [weitere]

Cambridge University Press

In: EPIC3Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge, United Kingdom and New York, NY, USA, Cambridge University Press, pp. 1-32, ISBN: 9781107641655

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Publikationsdatum: 2015-03-08

Repository-Name: EPIC Alfred Wegener Institut

Materialart: Inbook , peerRev

Format: application/pdf

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Technical Summary (2014)

Field, C. B. ; Barros, V. R. ; Mach, K. J. ; [weitere]

Cambridge University Press

In: EPIC3Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, Cambridge, United Kingdom and New York, NY, USA, Cambridge University Press, pp. 35-94, ISBN: 9781107641655

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Publikationsdatum: 2015-03-08

Repository-Name: EPIC Alfred Wegener Institut

Materialart: Inbook , peerRev

Format: application/pdf

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High-level semi-synthetic production of the potent antimalarial artemisinin (2013)

Paddon, C. J. ; Westfall, P. J. ; Pitera, D. J. ; [weitere]

Springer Nature

In: Nature. 2013; 496(7446): 528-532. Published 2013 Apr 01. doi: 10.1038/nature12051.

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Publikationsdatum: 2013-04-01

Print ISSN: 0028-0836

Digitale ISSN: 1476-4687

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Publiziert von Springer Nature

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Analysis of biogenic magnetite nanoparticles (2013)

Byrne, James M ; Coker, V S ; Moise, S ; [weitere]

PANGAEA

In: Supplement to: Byrne, James M; Coker, V S; Moise, S; Wincott, P L; Vaughan, D J; Tuna, F; Arenholz, E; van der Laan, G; Pattrick, R A D P; Lloyd, J R; Telling, N D (2013): Controlled cobalt doping in biogenic magnetite nanoparticles. Journal of The Royal Society Interface, 10(83), 20130134-20130134, https://doi.org/10.1098/rsif.2013.0134

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Publikationsdatum: 2023-01-13

Beschreibung: Cobalt doped magnetite (CoxFe3-xO4) nanoparticles have been produced through the microbial reduction of cobalt-iron oxyhydroxide by the bacterium Geobacter sulfurreducens. The materials produced, as measured by SQUID, x-ray magnetic circular dichroism, Mössbauer spectroscopy, etc., show dramatic increases in coercivity with increasing cobalt content without a major decrease in overall saturation magnetization. Structural and magnetization analyses reveal a reduction in particle size to 〈4 nm at the highest Co content, combined with an increase in the effective anisotropy of the magnetic nanoparticles. The potential use of these biogenic nanoparticles in aqueous suspensions for magnetic hyperthermia applications is demonstrated. Further analysis of the distribution of cations within the ferrite spinel indicates that the cobalt is predominantly incorporated in octahedral coordination, achieved by the substitution of Fe2+ site with Co2+, with up to 17 per cent Co substituted into tetrahedral sites.

Materialart: Dataset

Format: application/zip, 695.2 kBytes

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