Water-risk management is one of the most challenging issues in the conservation of earthen sites, because of the inherent weakness of earth to
This article is a review of the foundation (in 1838) and later developments of the Helsinki (Finland) magnetic and meteorological observatory, today the
Living organisms respond both to current and previous environments, which can have important consequences on population dynamics. However, there is little experimental evidence
Turbulent environment set the stage for leaps in human evolution and technology 320,000 years ago Drilling 139 meters down to volcanic rock provided
Recent studies have shown that wild birds breeding in acidified areas have difficulties with obtaining sufficient calcium for their eggshells, and that the
Predation on large woody plant seeds; chestnuts, acorns and sloe kernels, was studied in deciduous forests of two size classes: small woodlots (<
The COVID-19 pandemic has caused a worldwide disruption. Most people have never witnessed such a global threat, and the world’s leaders have not
Abstract We analyzed reports for 59,073 contacts of 5,706 coronavirus disease (COVID-19) index patients reported in South Korea during January 20–March 27, 2020.
BEIJING, Sept. Xinhua — China s first polar-observing satellite, BNU-, has obtained , images covering the Arctic and Antarctic regions after orbiting Earth
Envision attending a concert of tens of thousands of people, yet you are guaranteed excellent cell phone service for video streaming, calling and