12013 to 12024 of 14086 results
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Acquisition and assimilation of nitrogen as peptide-bound and D-enantiomers of amino acids by wheat
Read more of: Acquisition and assimilation of nitrogen as peptide-bound and D-enantiomers of amino acids by wheatNitrogen is a key regulator of primary productivity in many terrestrial ecosystems. Historically, only inorganic N (NH4+ and NO3-) and L-amino acids have been considered to be important to the […]
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Frozen in time: the chemistry of polar ice cores
Read more of: Frozen in time: the chemistry of polar ice coresPredicting the future of our Earth and its climate requires models that contain good representations of the key processes that might take place. Our only way to determine what these […]
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The geological evolution of southern McMurdo Sound – new evidence from a high-resolution aeromagnetic survey
Read more of: The geological evolution of southern McMurdo Sound – new evidence from a high-resolution aeromagnetic surveyMagnetic anomaly data are presented from a new helicopter-borne high-resolution aeromagnetic survey in southern McMurdo Sound. Anomaly data have been acquired at a common 305 m elevation above the McMurdo […]
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Relative effect of taphonomy on calcification temperature estimates from fossil planktonic foraminfera
Read more of: Relative effect of taphonomy on calcification temperature estimates from fossil planktonic foraminferaThis paper explores the effects of preservation and taphonomy on the ultrastructure of recent and fossil (Quaternary and Neogene) Globigerinoides using scanning electron microscopy and thin section petrography. We show […]
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International Partnerships in Ice Core Sciences (IPICS) and the future of European ice coring
Read more of: International Partnerships in Ice Core Sciences (IPICS) and the future of European ice coringIce cores have been a cornerstone of global change research in recent decades. Europe has been at the forefront of this science, particularly through the GRIP and EPICA projects funded […]