搜索结果: 1-15 共查到“国际动态 理学 Africa”相关记录17条 . 查询时间(0.147 秒)
Research links ancient Southeast Asia megadrought to drying in Africa（图）
ancient Southeast Asia megadrought drying in Africa
2020/9/11
Evidence found in caves in Laos helps tell a story about a connection between the end of the Green Sahara, when heavily vegetated Northern Africa became a hyper-arid landscape, and a previou...
Ancient teeth from Peru hint that now-extinct monkeys crossed the Atlantic from Africa（图）
Ancient teeth Peru now-extinct monkeys crossed Atlantic Africa
2020/4/17
Four fossilized monkey teeth discovered deep in the Peruvian Amazon provide new evidence that more than one group of ancient primates journeyed across the Atlantic Ocean from Africa, according to work...
Driven by Earth's orbit, climate changes in Africa may have aided human migration（图）
Driven by Earth's orbit climate changes Africa may aided human migration
2020/2/20
In 1961, John Kutzbach, then a recent college graduate, was stationed in France as an aviation weather forecaster for the U.S. Air Force. There, he found himself exploring the storied caves of Dordogn...
Environmental change in Africa:Will it lead to a drying Lake Victoria?（图）
Environmental change Africa drying Lake Victoria
2019/12/2
Global climate change could cause Africa's Lake Victoria, the world's largest tropical lake and source of the Nile River, to dry up in the next 500 years, according to new NSF-funded findings by a tea...
New dinosaur with heart-shaped tail offers clues to evolution of Africa's ecosystems（图）
New dinosaur heart-shaped tail evolution of Africa ecosystems
2019/11/22
A dinosaur that wore its "heart" on its tail is providing new clues to how ecosystems evolved on the African continent during the Cretaceous Period some 100 million years ago, according to researchers...
New Egyptian Dinosaur Reveals Ancient Link Between Africa And Europe（图）
New Egyptian Dinosaur Ancient Africa Europe
2018/2/1
When it comes to the final days of the dinosaurs, Africa is something of a blank page. Fossils found in Africa from the Late Cretaceous, the time period from 100 to 66 million years ago, are few and f...
Ancient Humans Left Africa to Escape Drying Climate（图）
Ancient Humans Left Africa Escape Drying Climate
2017/10/25
Humans migrated out of Africa as the climate shifted from wet to very dry about 60,000 years ago, according to research led by a University of Arizona geoscientist.Genetic research indicates people mi...
Ancient Human Dna In Sub-Saharan Africa Lifts Veil On Prehistory（图）
Ancient Human Dna Sub-Saharan Africa Lifts Veil Prehistory
2017/10/24
The first large-scale study of ancient human DNA from sub-Saharan Africa opens a long-awaited window into the identity of prehistoric populations in the region and how they moved around and replaced o...
Fires Burning in Africa&Asia Cause High Ozone in Tropical Pacific（图）
Fires Africa Asia High Ozone Tropical Pacific
2016/2/22
While efforts to limit ozone precursor emissions tend to focus on industrial activities and fossil fuel combustion in the United States and China, a new University of Maryland-led study suggests that ...
Wildlife species provide clues to spread of antibiotic resistance in Africa
Wildlife species antibiotic resistance Africa
2015/8/4
The following is part 18 in a series on the National Science Foundation's (NSF) Environmental Research and Education (ERE) programs. See parts one, two, three, four, five,...
Dirt mounds made by termites in Africa, South America, Asia could prevent spread of deserts
Dirt mounds termites Africa South America Asia could prevent spread of deserts
2015/3/4
Termites might not top the list of humanity's favorite insects, but new research suggests that their large dirt mounds are crucial to stopping deserts from spreading into semi-arid ecosystems.The ...
New Partnership Aims to Improve Maternal Health in Africa（图）
New Partnership Maternal Health Africa
2011/1/5
UNFPA, the United Nations Population Fund, and the Millennium Villages Project (MVP) announced an agreement today to promote universal access to reproductive health in sub-Saharan Africa in order to p...
20th Century One of Driest for Northwest Africa in 900 Years（图）
20th Century One of Driest for Northwest Africa 900 Years
2010/6/22
Some of the worst droughts to hit North Africa in the last 900 years have occurred recently—in the late 20th century—according to an analysis of tree rings that has provided the most lengthy and detai...
Physicists in Africa have today launched a cross-continent society to support and represent physicists in the region. At a ceremony held in Dakar, Senegal, researchers from across Africa came together...
Africa Takes the Nuclear Safety Stage--Newly-formed African Regulatory Body Presented at Cape Town Conference（图）
the Nuclear Safety Stage African Regulatory Body Cape Town Conference
2009/12/22
In a continent that is witnessing the increasing use of radioactive sources in applications ranging from health and agriculture to industrial activities and, possibly, nuclear power generation, a newl...