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Article
The Chronology of Kilwa Kisiwani, AD 800–1500
In this article, we present the results of a recent program of high-resolution radiocarbon dating on the urban sequence at Kilwa Kisiwani in southern Tanzania, including Bayesian modeling of 21 calibrated 14C dat...
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Article
Open AccessPerioperative changes in cell-free DNA for patients undergoing surgery for colon cancer
Various conditions with cellular decay are associated with elevated cell-free DNA (cfDNA). This study aimed to investigate if perioperatively measured cfDNA levels were associated with the surgical approach, c...
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Article
Single-year radiocarbon dating anchors Viking Age trade cycles in time
Recent discoveries of rapid changes in the atmospheric 14C concentration linked to solar particle events have spurred the construction of new radiocarbon annual calibration datasets1–13. With these datasets, radi...
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Article
Open AccessVulnerability of the North Water ecosystem to climate change
High Arctic ecosystems and Indigenous livelihoods are tightly linked and exposed to climate change, yet assessing their sensitivity requires a long-term perspective. Here, we assess the vulnerability of the No...
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Article
Open AccessEvidence for influx of Atlantic water masses to the Labrador Sea during the Last Glacial Maximum
The Last Glacial Maximum (LGM, 23–19,000 year BP) designates a period of extensive glacial extent and very cold conditions on the Northern Hemisphere. The strength of ocean circulation during this period has b...
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Article
Open AccessA novel approach for microRNA in situ hybridization using locked nucleic acid probes
Identification of target tissue microRNAs (miR) using in situ hybridization (ISH), with digoxigenin-labeled locked nucleic acid (LNA) probes, is influenced by preanalytic parameters. To determine the best retr...
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Open AccessAn integrated analysis of Maglemose bone points reframes the Early Mesolithic of Southern Scandinavia
The extensive peat bogs of Southern Scandinavia have yielded rich Mesolithic archaeological assemblages, with one of the most iconic artefacts being the bone point. Although great in number they remain underst...
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Article
Open AccessNew data on agro-pastoral diets in southern Italy from the Neolithic to the Bronze Age
The socio-cultural and economic developments that took place from the Neolithic to the Bronze Age are poorly understood, despite the fact that they were essential for the establishment of fully agro-pastoral e...
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Open AccessSouthwest Greenland shelf glaciation during MIS 4 more extensive than during the Last Glacial Maximum
Although geological and modelling evidence indicate that the last glacial inception in North America was in NE Canada, little is known about the glacial response of the nearby western Greenland Ice Sheet (GIS)...
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Article
Circumstantial evidence of non-pollen palynomorph palaeoecology: a 5,500 year NPP record from forest hollow sediments compared to pollen and macrofossil inferred palaeoenvironments
The addition of non-pollen palynomorphs (NPPs) to pollen analytical studies has improved the interpretational frame, especially concerning the local regime in anthropogenically disturbed environments. Using ad...
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Article
Open AccessInstability of the Northeast Greenland Ice Stream over the last 45,000 years
The sensitivity of the Northeast Greenland Ice Stream (NEGIS) to prolonged warm periods is largely unknown and geological records documenting such long-term changes are needed to place current observations in ...
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Article
Open AccessThe history of seabird colonies and the North Water ecosystem: Contributions from palaeoecological and archaeological evidence
The North Water (NOW) polynya is one of the most productive marine areas of the Arctic and an important breeding area for millions of seabirds. There is, however, little information on the dynamics of the poly...
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Article
Open AccessWidespread erosion on high plateaus during recent glaciations in Scandinavia
Glaciers create some of Earth’s steepest topography; yet, many areas that were repeatedly overridden by ice sheets in the last few million years include extensive plateaus. The distinct geomorphic contrast bet...
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Article
Late Holocene landscape development around a Roman Iron Age mass grave, Alken Enge, Denmark
Sediments from the small lake Ilsø situated in the Illerup/Alken Enge Valley were studied in order to investigate past landscape development at the time of a probably ritual human mass burial following battle ...
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Radiocarbon Dating in Estuarine Environments
Radiocarbon (14C) is a radioactive cosmogenic isotope continuously produced in the upper atmosphere where it rapidly oxidises to 14CO2. As 14CO2, 14C enters the global carbon cycle and is incorporated into living...
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Article
Open AccessObservational evidence for enhanced magnetic activity of superflare stars
Superflares are large explosive events on stellar surfaces one to six orders-of-magnitude larger than the largest flares observed on the Sun throughout the space age. Due to the huge amount of energy released ...
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Article
Open AccessHolocene ice marginal fluctuations of the Qassimiut lobe in South Greenland
Knowledge about the Holocene evolution of the Greenland ice sheet (GrIS) is important to put the recent observations of ice loss into a longer-term perspective. In this study, we use six new threshold lake rec...
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Open AccessEvidence for external forcing of the Atlantic Multidecadal Oscillation since termination of the Little Ice Age
The Atlantic Multidecadal Oscillation (AMO) represents a significant driver of Northern Hemisphere climate, but the forcing mechanisms pacing the AMO remain poorly understood. Here we use the available proxy r...
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Article
Reply to: Re: No differences in short-term morbidity and mortality after robot-assisted laparoscopic versus laparoscopic resection for colonic cancer: a case-control study of 263 patients (Surg Endosc 2013)
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No differences in short-term morbidity and mortality after robot-assisted laparoscopic versus laparoscopic resection for colonic cancer: a case–control study of 263 patients
Robot-assisted laparoscopy has been reported to be a safe and feasible alternative to traditional laparoscopy. The aim of this study was to compare short-term results in patients with colonic cancer who underw...
