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Tag: Scientists

Polar scientists wary of impending satellite gap

Polar scientists wary of impending satellite gap

Science
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Iranian leaders accuse Israel of nuclear scientist’s assassination – and vow to retaliate

Iranian leaders accuse Israel of nuclear scientist’s assassination – and vow to retaliate

World
Iran's supreme leader has called for the "definitive punishment" of those behind the assassination of one of the country's prominent nuclear scientists.Supreme Leader Ayatollah Ali Khamenei made his pledge in a statement on his official website, after Iranian President Hassan Rouhani used a televised statement to accuse Israel of the killing. All Israeli embassies around the world have now been put on high alert.Mohsen Fakhrizadeh was injured after gunmen fired at his car in an ambush near Tehran. He died later in hospital.Mr Rouhani, who has also said that the scientist's death will not curtail Iran's nuclear programme, said in his address: "We will retaliate." ...
‘Mutant coronavirus’ seen before on mink farms, say scientists

‘Mutant coronavirus’ seen before on mink farms, say scientists

Science
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Scientists demonstrate new kind of superconductivity once thought impossible

Scientists demonstrate new kind of superconductivity once thought impossible

Science
Nov. 6 (UPI) -- Under certain conditions, electricity can flow through a medium or circuit without any resistance. The phenomenon is called superconductivity, and it can happen several different ways. Until now, scientists thought most of these different methods for inciting superconductivity were incompatible, but for the first time, researchers were able to combine two of these strategies. Scientists described the breakthrough in a new paper published Friday in the journal Science Advances. Advertisement The breakthrough involves what scientists call a Bose-Einstein condensate, or BEC, the fifth state of matter -- like plasma, but at the other end of the thermal spectrum. "A BEC is a unique state of matter as it is not made from particles, but rather waves," Kozo Okazaki said in a news ...
Chinook salmon that migrate in spring, fall are more alike than scientists thought

Chinook salmon that migrate in spring, fall are more alike than scientists thought

Science
Oct. 30 (UPI) -- Traditionally, spring-run and fall-run Chinook salmon have been classified as two separate subspecies, or ecotypes, but new genetic analysis suggests the two groups are much more similar than they are different. According to the new study, published this week in the journal Science, the migration patterns of spring-run and fall-run Chinook salmon are dictated by differences in a small snippet of DNA in their genomes. Advertisement "Understanding the genetic basis of ecotypic differentiation in salmon provides a solid framework for predicting the outcome of different management actions," study co-author John Carlos Garza, professor of ocean sciences at the University of California, Santa Cruz, told UPI in an email. Scientists previously observed evidence that members of th...