Human newborns have been helpless for 1 million years - Popular Science

Guinea-Bissau has not approved the controversial hepatitis B study in newborns that would be funded by the US government and private partners, the African country’s minister of health said on Tuesday. The study, which would not investigate the safety or effectiveness of vaccines but would instead track “nonspecific” health outcomes like overall mortality or neurodevelopmental conditions, has been championed by Robert F Kennedy Jr, secretary of the US Department of Health and Human Services (HHS) and a longtime anti-vaccine activist. Members of a Danish research ethics committee were informed that officials in Guinea-Bissau had approved an updated design of the study, which influenced some committee members’ votes to proceed with the trial last week. But the health ministry never agreed to or authorized the trial, said Quinhin Nantote in Portuguese at a press briefing, where he referred to the study as “tests”. “The ministry did not authorize the tests under the terms presented in the publications currently in circulation,” the health minister said. He said officials in Guinea-Bissau were “surprised” to see media reports that the country had given approval to the study.

The spacecraft delivered materials and equipment for new research studies to the station.

Mud from a fjord shows an Atlantic air pattern brought wetter, colder spells to southern Greenland, a clue to how its ice may fare. Greenland’s ice is shrinking as the planet warms. But in the island’s southwest, rainfall and snowfall have been influenced by the same North Atlantic air-pressure pattern for at least 5,000 years. When that pattern tipped one way, the region turned wetter and colder. The record comes from mud on the floor of a Greenland fjord, and it suggests snowfall, not only temperature, shaped how the area’s ice grew and shrank. It doesn’t yet show how glaciers there will respond to the warming ahead. Johan Faust, a researcher at MARUM, the Center for Marine Environmental Sciences at the University of Bremen in Germany, led the work with colleagues in Germany, Norway, Denmark and Canada. A seesaw in the airThe pattern is called the North Atlantic Oscillation. It’s the difference in air pressure between a low that sits near Iceland and a high near the Azores, and it’s strongest in winter. When that difference is large, the pattern is in its positive phase. Northwestern Europe and southwestern Greenland both get more rain and snow.

Lawrence Livermore National Laboratory researcher Isaiah Santistevan led the development of three-dimensional simulations exploring how a nuclear device could deflect or disrupt an asteroid threatening Earth. Credit: Blaise Douros/LLNL Lawrence Livermore National Laboratory (LLNL) researchers are developing three-dimensional simulations to examine how a nuclear device could be used to deflect or potentially disrupt an asteroid threatening Earth.

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