Results 31 to 40 of about 8,506 (210)
Ancient fossil specimens of extinct species are genetically more distant to an outgroup than extant sister species are [PDF]
, 2008 There exists a remarkable correlation between genetic distance and time of species divergence as inferred from fossil records. This observation has provoked the molecular clock hypothesis.
Shi Huang
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3D printing in core facilities – Low pain, high gain
Journal of Microscopy, EarlyView.Abstract Three‐dimensional (3D) printing has rapidly developed from a niche hobbyist activity into a widely accessible and indispensable technology across multiple scientific disciplines. Within microscopy, optical engineering laboratories and imaging core facilities, 3D printing enables creating customised solutions for sample holders, optical ...
Mohammad Goudarzi +5 more
wiley +1 more source
Annales Universitatis Paedagogicae Cracoviensis. Studia de CulturaArtykuł analizuje, jak album Leviathan zespołu Mastodon interpretuje powieść Moby Dick H. Melville’a, wykorzystując utwory jako muzyczną ekfrazę. Teksty nawiązują do fabuły i motywów powieści, co udało się ukazać przez przytoczenie konkretnych wersów i ...
Łukasz Stec
doaj +1 more source
This is the homepage of the Michigan Office of Geological Survey (OGS). Users can access a variety of materials on Michigan geology, mineral resources, and environmental issues. The Digital Geology Library is a downloadable document containing live links
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Journal of Management Studies, EarlyView.Abstract This essay argues that social media document (rather than fuel) the decline of political democracy while helping revive organizational democracy, including through ‘decentralized autonomous organizations’ (DAOs). Yet, despite giving everyone a voice and the ability to organize across borders, social media could over‐concentrate power if, in ...
J.P. Vergne
wiley +1 more source
Comparison of powdered enamel sample pretreatment methods for strontium isotope analysis
Frontiers in Environmental Chemistry, 2023 Most researchers assume minimal impact of pretreatment on strontium isotope ratios (87Sr/86Sr) for bones and teeth, and methods vary tremendously. We compared 14 pretreatment methods, including no prep other than powdering enamel, ashing, soaking in ...
Brooke Erin Crowley +5 more
doaj +1 more source
Microbial Endolithic Community at Meteor Crater
Meteoritics &Planetary Science, EarlyView.Abstract Postimpact recovery and evolution in response to climate changes produced a modern ecosystem at Meteor Crater dominated by a grassland and woodland of piñon and juniper, which has been used to evaluate floral and megafaunal consequences of impact cratering during the Phanerozoic Eon of complex life.
David A. Kring, Charles S. Cockell
wiley +1 more source
Spartan Daily, February 13, 2020 [PDF]
, 2020 Volume 154, Issue 10https://scholarworks.sjsu.edu/spartan_daily_2020/1009/thumbnail ...
San Jose State University, School of Journalism and Mass Communications
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Advanced Intelligent Systems, Volume 8, Issue 4, April 2026.The polymerase chain reaction (PCR).Perturbation Theory and Machine Learning framework integrates perturbation theory and machine learning to classify genetic sequences, distinguishing ancient DNA from modern controls and predicting tree health from soil metagenomic data.
Jose L. Rodriguez +19 more
wiley +1 more source
Solving the woolly mammoth conundrum: amino acid 15N-enrichment suggests a distinct forage or habitat [PDF]
, 2015 Understanding woolly mammoth ecology is key to understanding Pleistocene community dynamics and evaluating the roles of human hunting and climate change in late Quaternary megafaunal extinctions. Previous isotopic studies of mammoths’ diet and physiology
Longstaffe, Fred J +3 more
core +2 more sources