Results 281 to 290 of about 10,618,925 (346)
Some of the next articles are maybe not open access.
Earth and Planetary Science Letters, 2020
Variations of geomagnetic field in the Iberian Peninsula prior to Late Iron Age times are poorly constrained. Here we report 14 directional and 10 palaeointensity results from an archaeomagnetic study carried out on 17 combustion structures recovered ...
Saioa A Campuzano +2 more
exaly +2 more sources
Variations of geomagnetic field in the Iberian Peninsula prior to Late Iron Age times are poorly constrained. Here we report 14 directional and 10 palaeointensity results from an archaeomagnetic study carried out on 17 combustion structures recovered ...
Saioa A Campuzano +2 more
exaly +2 more sources
Bronze and Iron Age population movements underlie Xinjiang population history
Science, 2022The Xinjiang region in northwest China is a historically important geographical passage between East and West Eurasia. By sequencing 201 ancient genomes from 39 archaeological sites, we clarify the complex demographic history of this region.
Prof Vikas Kumar +25 more
semanticscholar +1 more source
The Archaeology of the Mediterranean Iron Age
, 2020The Mediterranean’s Iron Age period was one of its most dynamic eras. Stimulated by the movement of individuals and groups on an unprecedented scale, the first half of the first millennium BCE witnesses the development of Mediterranean-wide practices ...
T. Hodos
semanticscholar +1 more source
Nature Chemistry, 2020
Recent research has shown that vibronic coherences are one of the primary drivers for ultrafast light-induced processes. Now, ultrafast spectroscopy has been used to uncover vibronic coherences in the excited-state dynamics of an iron complex, leading to its redesign and the drastic prolonging of its excited-state lifetime.
openaire +2 more sources
Recent research has shown that vibronic coherences are one of the primary drivers for ultrafast light-induced processes. Now, ultrafast spectroscopy has been used to uncover vibronic coherences in the excited-state dynamics of an iron complex, leading to its redesign and the drastic prolonging of its excited-state lifetime.
openaire +2 more sources
Free Radical Biology & Medicine, 2020
The transcription factor NF-E2-related factor 2 (Nrf2) is a central regulator of cellular antioxidant and detoxification response. The association between Nrf2 activity and iron-related oxidative stress in neurodegenerative diseases has been studied, and
K. Han +9 more
semanticscholar +1 more source
The transcription factor NF-E2-related factor 2 (Nrf2) is a central regulator of cellular antioxidant and detoxification response. The association between Nrf2 activity and iron-related oxidative stress in neurodegenerative diseases has been studied, and
K. Han +9 more
semanticscholar +1 more source
Ferrosenescence: The iron age of neurodegeneration?
Mechanisms of Ageing and Development, 2017Aging has been associated with iron retention in many cell types, including the neurons, promoting neurodegeneration by ferroptosis. Excess intracellular iron accelerates aging by damaging the DNA and blocking genomic repair systems, a process we define ...
Adonis Sfera +4 more
semanticscholar +1 more source
Iron Meteorites: Composition, Age, and Origin
, 2020Iron meteorites are thought to be samples of metallic cores and pools that formed in diverse small planetary bodies. Their great diversity offers remarkable insights into the formation of asteroids and the early history of the solar system.
E. Scott
semanticscholar +1 more source
<p><em>Iron and the Iron Age</em> presents a comprehensive account of the adoption of ironworking in Europe and Western Asia. The study is mainly based on archaeological evidence, but the early introduction of iron in the Near East also takes account of the written sources.
openaire +2 more sources
openaire +2 more sources
2019
Abstract This final chapter analyzes current geopolitical challenges, and offers US foreign policy recommendations. Leading reasons for existing discontent with the rules-based liberal international order are delineated, and a more realistic understanding proposed. Today’s geopolitical circumstances are outlined, region by region. Policy
openaire +2 more sources
Abstract This final chapter analyzes current geopolitical challenges, and offers US foreign policy recommendations. Leading reasons for existing discontent with the rules-based liberal international order are delineated, and a more realistic understanding proposed. Today’s geopolitical circumstances are outlined, region by region. Policy
openaire +2 more sources