Results 31 to 40 of about 64,269 (303)
GCB Bioenergy, 2020 Perennial bioenergy crops have been shown to increase soil organic carbon (SOC) stocks, potentially offsetting anthropogenic C emissions. The effects of perennial bioenergy crops on SOC are typically assessed at shallow depths (30 cm) SOC stocks would be
Eric W. Slessarev +6 more
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14C Research at the Laboratory for the Analysis of Radiocarbon with AMS (LARA), University of Bern
CHIMIA, 2020 The Laboratory for the Analysis of Radiocarbon with AMS (LARA) at the University of Bern measures the radioactive carbon isotope 14C with accelerator mass spectrometry (AMS) in different applications.
Sönke Szidat
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Geophysical Research Letters, 2023 Dissolved organic carbon (DOC) in throughfall plays a vital role in providing carbon and energy to organisms in forests. We utilized carbon isotope analysis to allocate the sources of throughfall DOC, including leaching from plant tissues, PM2.5 ...
Ji‐Yeon Cha +7 more
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Detection of radiocarbon in the cyclotrino [PDF]
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 1990 Abstract A small low-energy cyclotron (the “cyclotrino”), which was proposed for direct detection of radiocarbon in 1981, has now detected radiocarbon at natural abundance. This device combines the suppression of background through the use of negative ions with the high intrinsic mass resolution of a cyclotron.
Bertsche, K.J. +3 more
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The Anatomical Record, EarlyView.Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley +1 more source
Spring buds of European woody plants have old 14C age
HeliyonTrees and shrubs maintain carbon reserves to support their functions during periods when metabolic demand exceeds carbon supply, such as during the dormant season.
Tamás Varga +5 more
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El Abrigo de Guachos (Sepúlveda, Segovia): un nuevo yacimiento del Neolítico antiguo en el interior peninsular [PDF]
Munibe Antropologia-ArkeologiaEn este trabajo se presenta el descubrimiento de un nuevo yacimiento del Neolítico antiguo en el interior peninsular (cuenca del Duero), a partir de los resultados preliminares de la campaña de sondeo realizada en septiembre de 2023. El Abrigo de Guachos
David Álvarez-Alonso +7 more
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Formal Tests for Resistance-Resilience in Archaeological Time Series
Frontiers in Ecology and Evolution, 2021 The study of resilience is a common pathway for scientific data to inform policy and practice towards impending climate change. Consequently, understanding the mechanisms and features that contribute towards building resilience is a key goal of much ...
Philip Riris, Jonas Gregorio de Souza
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The Problems of Radiocarbon Dating [PDF]
Science, 2005 In their Perspective “The boon and Bane of radiocarbon dating” (21 Jan., p. [362][1]), T. P. Guilderson et al. raise some important issues in radiocarbon (14C) dating. They discuss the problems of calibrating 14C dates that fall within “age plateaus” of the 14C calibration curve and ...
Maarten, Blaauw, J Andrés, Christen
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The Anatomical Record, EarlyView.Abstract The human mandibular symphysis concentrates multiaxial loads during function and remodels throughout growth, but the precise mechanisms underlying cortical bone shape during growth remain relatively unexplored. Approaches based solely on thickness or external cortical contours provide only partial insights and do not capture the functional ...
Ana Ribeiro +3 more
wiley +1 more source