SCIENTIFIC EDUCATIONAL CENTER science idea
Humans did not cause woolly mammoths to go extinct -- climate change did
2021-10-24 11:15
For five million years, woolly mammoths roamed the earth until they vanished for good nearly 4,000 years ago – and scientists have finally proved why.
The hairy cousins of today’s elephants lived alongside early humans and were a regular staple of their diet – their skeletons were used to build shelters, harpoons were carved from their giant tusks, artwork featuring them is daubed on cave walls, and 30,000...
Uridine turned out to be a promising remedy for coronary heart disease
2021-10-23 11:53
Scientists from the Institute of Theoretical and Experimental Biophysics of the Russian Academy of Sciences and the Institute of Experimental Medicine used uridine (pyrimidine nucleoside, an RNA component) to protect rat myocardial tissue from ischemic and reperfusion damage and identified a possible mechanism of its protective action.
Cardiovascular diseases have been the main cause of death in most count...
Wake up T cells. A New Approach to Cancer Immunotherapy
2021-10-22 12:36
Researchers at the Massachusetts Institute of Technology have discovered a new way to get the immune system to attack a patient's tumors. To do this, they remove tumor cells from the body, expose them to chemotherapy drugs, and then return them back to the tumor. After that, the patient's own T cells are activated, which begin to destroy the tumor.Immunotherapy is a promising cancer treatment strategy by st...
Chemists from St. Petersburg State University have discovered a compound that can "turn on" under the action of a laser
2021-10-21 12:26
Scientists from St. Petersburg State University, together with researchers from the St. Petersburg Federal Research Center of the Russian Academy of Sciences and the Research Center for Environmental Safety of the Russian Academy of Sciences, have developed a new organic compound, the biological activity of which is increased under the influence of a laser. The created phosphonate will allow a more accurate...
The brain does not look for the shortest path when planning a route
2021-10-20 11:47
Scientists at MIT have found that our brains are not optimized to find the shortest route. Instead, he chooses the path that most accurately indicates the final direction.
For a computer, route planning is one of the most computationally complex tasks, but humans cope with it surprisingly efficiently, and on different scales. However, observations show that the routes that a person chooses systematically d...
Photosynthesizing Microorganisms Can Produce Oxygen in Brain Blood Vessels of Tadpoles
2021-10-19 12:47
Biologists at the Ludwig-Maximilians-University Munich have developed a method that allows tadpoles of African clawed frogs (Xenopus laevis) to ‘breathe’ by introducing green algae or cyanobacteria into their bloodstream to supply oxygen. The team’s method provides enough oxygen to effectively rescue neurons in the brains of oxygen-deprived tadpoles.
“The algae actually produced so much oxygen that they co...
Ancestors of primates and marsupials left trees to survive the late Cretaceous extinction
2021-10-18 18:55
The mass extinction at the end of the Cretaceous 66 million years ago was characterized by a worldwide ecological catastrophe and a rapid turnover of species. Arboreal (tree-dwelling) species were particularly at risk of extinction due to the large-scale destruction of the forest environment caused by wildfires from the impact of the Chicxulub asteroid.
A new study by scientists at Cornell and Cambridge Un...
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