Results 41 to 50 of about 11,692,190 (343)
An algorithm based on lightweight semantic features for ancient mural element object detection
npj Heritage ScienceThe ancient mural paintings unearthed in China are precious world cultural heritages, which record the historical information of various eras and serve as valuable image materials for studying ancient Chinese society.
Jiaquan Shen +5 more
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Ancient Mitogenomes Reveal the Evolutionary History and Biogeography of Sloths.
Current Biology, 2019 Living sloths represent two distinct lineages of small-sized mammals that independently evolved arboreality from terrestrial ancestors. The six extant species are the survivors of an evolutionary radiation marked by the extinction of large terrestrial ...
Frédéric Delsuc +12 more
semanticscholar +1 more source
Textile Prices in Early Byzantine Hagiographic Texts. Three Case Studies
Studia Ceranea, 2020 This text analyzes three early Byzantine source accounts on clothing prices from the beginning of the 5th to the early 7th centuries in Italy (Rome), Palestine (probably in Jerusalem), and Egypt (Alexandria).
Ireneusz Milewski
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Expanding Field-Archaeology Education: The Integration of 3D Technology into Archaeological Training
Open Archaeology, 2021 This contribution analyses and discusses the use of 3D technology in education and learning. Basing the discussion on a case study performed during two seasons of a field school for 1st-year archaeology students, we explore how to expand traditional ...
Derudas Paola, Berggren Åsa
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History of Ancient Pottery [PDF]
, 1873 The Egyptologist Samuel Birch (1813–85) began to study Chinese at school, and obtained his first post at the British Museum cataloguing Chinese coins. He maintained his interest in Chinese civilisation throughout his life, but also collaborated with C. T.
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FEBS Letters, EarlyView.Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley +1 more source
Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
The spatiotemporal distribution of human pathogens in ancient Eurasia
NatureInfectious diseases have had devastating effects on human populations throughout history, but important questions about their origins and past dynamics remain1.
Martin Sikora +24 more
semanticscholar +1 more source
Ancient History and the Antiquarian
Journal of the Warburg and Courtauld Institutes, 1950 Prijevod clanka Arnalda Momigliana, izvorno objavljenog 1950. u casopisu Journal of the Warburg and Courtauld Institutes. Pregled povijesti antikvarnih studija od staroga vijeka do 19. stoljeca.
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FEBS Letters, EarlyView.How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley +1 more source