Results 11 to 20 of about 38,197 (265)

A Late Glacial family at Trollesgave, Denmark

open access: yesJournal of Archaeological Science, 2015
AbstractMicrowear analysis is applied to reconstruct the function and social organisation at the Late Glacial site of Trollesgave, Denmark. As with Bromme Culture sites in general, the lithic assemblage consists of primarily three types of tools. There is a strong association between these types and their use: end scrapers for dry hide scraping; burins
Donahue, Randolph E., Fischer, Anders
openaire   +2 more sources

Life hung by a thread: endurance of Antarctic fauna in glacial periods [PDF]

open access: yes, 2008
Today, Antarctica exhibits some of the harshest environmental conditions for life on Earth. During the last glacial period, Antarctic terrestrial and marine life was challenged by even more extreme environmental conditions.
Thatje, S.   +12 more
core   +1 more source

A Late Glacial–Holocene Tephrochronology for Glacial Lakes in Southern Ecuador [PDF]

open access: yesQuaternary Research, 2002
AbstractDespite the presence of numerous active volcanoes in the northern half of Ecuador, few, if any, distal tephras have been previously recognized in the southern one third of the country. In this article, we document the presence of thin (0.1–1.0-cm-thick) distal tephras comprising glass and/or phenocrysts of hornblende and feldspar in sediment ...
Donald T. Rodbell   +4 more
openaire   +1 more source

Millennial climatic fluctuations are key to the structure of last glacial ecosystems

open access: yes, 2013
Whereas fossil evidence indicates extensive treeless vegetation and diverse grazing megafauna in Europe and northern Asia during the last glacial, experiments combining vegetation models and climate models have to-date simulated widespread persistence of
Huntley Brian   +32 more
core   +2 more sources

Abrupt changes in deep Atlantic circulation during the transition to full glacial conditions [PDF]

open access: yes, 2013
Six Ocean Drilling Program (ODP) sites, in the Northwest Atlantic have been used to investigate kinematic and chemical changes in the ‘Western Boundary Undercurrent’ (WBUC) during the development of full glacial conditions across the Marine Isotope Stage
Becker, J   +14 more
core   +1 more source

The archaeological and genetic foundations of the European population during the Late Glacial: implications for ‘agricultural thinking’

open access: yes, 2005
This article presents the initial results from the S2AGES database of calibrated radiocarbon estimates from western Europe in the period 25,000–10,000 years ago.
Richards, Martin   +10 more
core   +1 more source

High-resolution mtDNA evidence for the late-glacial resettlement of Europe from an Iberian refugium [PDF]

open access: yes, 2005
The advent of complete mitochondrial DNA (mtDNA) sequence data has ushered in a new phase of human evolutionary studies. Even quite limited volumes of complete mtDNA sequence data can now be used to identify the critical polymorphisms that define sub ...
Albarrán, Cristina   +25 more
core   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Mitochondrial DNA signals of late glacial recolonization of Europe from near Eastern refugia

open access: yes, 2012
Human populations, along with those of many other species, are thought to have contracted into a number of refuge areas at the height of the last Ice Age.
Reisberg T.   +148 more
core   +1 more source

Eastern Mediterranean surface water temperatures and d18O composition during deposition of sapropels in the late Quaternary [PDF]

open access: yes, 2003
Water column stratification increased at climatic transitions from cold to warm periods during the lateQuaternary and led to anoxic conditions and sapropel formation in the deep eastern Mediterranean basins.
Struck, U.   +16 more
core   +1 more source

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