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On the cover: About 100,000 years ago, Diverse Homo species coexisted with our own species Homo sapiens. The Harbin cranium, or the Dragon Man, is one of the best preserved Middle Pleistocene human fossils. The cranium has a large cranial capacity falling in the range of modern humans, but is combined with a mosaic of primitive and derived characters. Phylogenetic analyses suggest that the diversification of the Homo genus had a much more distant past than previously presumed. The Harbin cranium and some other Middle Pleistocene human fossils from China represent the third human lineage that is the sister group of H. sapiens and has closer relationships with H. sapiens than Neanderthals with H. sapiens. Multiple Homo lineages in Africa, Asia and Europe probably had a strong capability for long-distance dispersal, but remained in relatively small and isolated populations. Diverse palaeoenvironments in Asia may have produced a varied biogeographic sink for human evolution. |
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Position: Home > issue > August 28, 2021 Volume 2, Issue 3 |
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Ambient Air Pollution and Low Temperature Associated with Case Fatality of COVID-19: A Nationwide Retrospective Cohort Study in China |
Category: Report Download: PDF Figure Endnote |
Author: Fei Tian, Xiaobo Liu, Qingchen Chao, Zhengmin (Min) Qian, Siqi Zhang, Li Qi, Yanlin Niu, Lauren D. Arnold, Shiyu Zhang, Huan Li, Hualiang Lin, Qiyong Liu |
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Graphical abstract The evidence for the effects of environmental factors on COVID-19 case fatality remains controversial, and it is crucial to understand the role of preventable environmental factors in driving COVID-19 fatality. We thus conducted a nationwide cohort study to estimate the effects of environmental factors (temperature, particulate matter [PM2.5, PM10], sulfur dioxide [SO2], nitrogen dioxide [NO2], and ozone [O3]) on COVID-19 case fatality. A total of 71,808 confirmed COVID-19 cases were identified and followed up for their vital status through April 25, 2020.

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