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Gravitational waves can point to clouds of dark matter near black holes

2021-12-02 18:55 Dark matter is one of the most mysterious mysteries of science. In a new study, astronomers were looking for clouds of hypothetical ultralight particles that could gather around black holes and declare themselves by sending gravitational waves.All the ordinary (baryonic) matter that we see and interact with every day is only about 15 percent of all matter in the universe. Everything else is connected with d...

Fluorescent biosensors made it possible to study the processes occurring in nerve cells during a stroke

2021-12-01 18:48 Russian scientists together with foreign colleagues have created new technologies that allow studying the metabolism of nerve cells in real time directly in the brain of animals. They tested their developments on a model of ischemic stroke in rats: fluorescent biosensors, whose genes were delivered to brain cells using viruses, reacted sensitively to changes in pH and the content of reactive oxygen species ...

"Ghost particles" discovered for the first time at the Large Hadron Collider

2021-11-30 16:34 Physicists have recorded, for the first time in history, "ghost" neutrino particles produced by collisions inside the Large Hadron Collider (LHC), the largest and most powerful particle accelerator to date. Control signals indicating the presence of these particles were recorded by the sensors of the FASER experiment. And further study of the events and the collected data will allow scientists to better und...

Scientists suggest that battery-powered trains could become cost-effective in 2023

2021-11-29 15:59 A team of researchers from Lawrence Berkeley National Laboratory and the University of California have found that battery-powered trains could become economically affordable as early as 2023. In a paper published in the journal Nature Energy, the group argues that improved battery technology and cheaper, renewable energy sources could soon allow the battery to compete with diesel for power trains. The rese...

Biomedical engineers find neural activity during rest is highly organized

2021-11-28 17:09 UNIVERSITY PARK, Pa. — When mice rest, individual neurons fire in seconds-long, coordinated cascades, triggering activity across the brain, according to research from Penn State and the National Institutes of Health. Previously, this was thought to be a relatively random process — single neurons firing spontaneously at random times without external stimulations. The finding, published Nov. 18 in the Procee...

193 countries adopt first-ever global agreement on the Ethics of Artificial Intelligence

2021-11-27 19:59 All the Member states of the UN Educational, Scientific and Cultural Organization (UNESCO) adopted on Thursday a historic agreement that defines the common values and principles needed to ensure the healthy development of AI. Artificial intelligence is present in everyday life, from booking flights and applying for loans to steering driverless cars. It is also used in specialized fields such as cancer scre...

Biologists have found an unexpected similarity between carrion bees, hyenas and vultures

2021-11-26 16:28 Bees include representatives of seven families and thousands of species of insects. The vast majority of them are vegetarians, although they can eat animal food from time to time. Only individual bees are scavengers "by nature" and do not collect pollen at all. These include, for example, trigons (Trigona), which live in South and Central America and flock in masses to the corpses of animals, quickly devour...

MSU physicists have proposed a method for restoring the energy of an electron beam to measure neutrino oscillations

2021-11-25 18:20 Employees of the D.V. Skobeltsyn (SINP) and the Faculty of Physics of Moscow State University, together with foreign colleagues, proposed ways to improve the existing models of neutrino-nuclear interaction by electron scattering methods, which made it possible to test different versions of such models. Neutrino experiments make it possible to study one of the most interesting physical phenomena - neutrino ...

Ultrashort laser pulses destroy superbugs without damaging human cells

2021-11-24 18:12 Antibiotics were one of the most important inventions of the 20th century, but their effectiveness drops dramatically as bacteria develop resistance to them. Now researchers from the University of St. Louis have shown that ultra-short pulses of laser light can kill bacteria and viruses without damaging human cells.The rise in multidrug-resistant "superbugs" is a looming health crisis that, according to some...

DNA replication under the microscope

2021-11-23 18:05 Cryogenic electron microscopy (cryo-EM) has enabled researchers to study how the DNA replication machinery assembles at sites where DNA is damaged. Cellular DNA is continuously exposed to both endogenous and exogenous DNA-damaging agents, such as reactive oxygen species and UV radiation. To reduce the biological consequences of DNA damage, all living organisms have evolved mechanisms to tolerate and repai...

Youth embody ‘spirit’ of 21st century more than parents, new survey shows

2021-11-22 17:51 Even in the face of the COVID-19 pandemic, climate change and other global challenges, children and youth are nearly 50 per cent more likely than older people to believe that the world is becoming a better place, according to the results of a landmark intergenerational poll published on Thursday. The international survey was conducted by the UN Children’s Fund (UNICEF) and Gallup, the global analytics and...

New cell, shown to regulate heart rate, discovered at University of Notre Dame

2021-11-21 20:13 Researchers at the University of Notre Dame discovered a new type of cell in the heart that may help regulate heart rate, and could be an important key in understanding certain types of congenital heart defects and other diseases that involve the heart. The cells, which were termed nexus glia, resemble critical glial cells called astrocytes in the brain, according to research completed in the lab of Cody S...

The animal which was considered the ancestor of the snake, turned out to be a sea lizard

2021-11-20 20:13 The origin of snakes is one of the most controversial topics in vertebrate evolution. In 2015, paleontologists described a unique discovery from the Early Cretaceous in Brazil as the first known snake to retain the rudimentary rudiments of four limbs. The animal was named Tetrapodophis amplectus, which in Greek means "four-legged snake." She had four limbs - so tiny that they can be safely called rudimenta...

310 years since the birth of Mikhail Vasilyevich Lomonosov

2021-11-19 17:22 Mikhail Vasilyevich Lomonosov (November 19, 1711 – April 15, 1765) was a Russian polymath, scientist and writer, who made important contributions to literature, education, and science. Among his discoveries were the atmosphere of Venus and the law of conservation of mass in chemical reactions. His spheres of science were natural science, chemistry, physics, mineralogy, history, art, philology, optical devic...

Результаты Международного конкурса научно-исследовательских работ «Science creating the future»

2021-11-19 15:19 Уважаемые участники конкурса, руководители! Благодарим за интерес, проявленный к нашему конкурсу. Желаем всем вам новых интересных идей, успехов в вашей дальнейшей деятельности! Просим обратить внимание, что в соответствии с тематикой поступивших на конкурс работ были образованы дополнительные направления. Результаты конкурса можно скачать по следующим ссылкам: Школьники Студенты, аспиран...

In Russia, they found a way to speed up the treatment of injuries using implants

2021-11-18 17:11 Specialists of the National Research Technological University "MISIS" (NUST MISIS) together with other Russian scientists were able to give an antibacterial effect to titanium alloy, which is becoming one of the key materials of advanced surgery today. According to the authors, implants processed by the new method will noticeably accelerate and facilitate recovery after injuries.Life expectancy in most coun...

Hydraulic jump stimulates stratospheric hydration before intense thunderstorms

2021-11-17 18:36 Scientists have taken a fresh look at how severe thunderstorms cause water vapor to be pumped from the troposphere — the layer of the atmosphere closest to the Earth's surface —into the stratosphere. Their research suggests a feature called "hydraulic jump" as part of this process. When severe thunderstorms develop, most of them grow rapidly up the troposphere until they reach the tropopause. Unable to ...

Intestinal bacteria can accumulate medications

2021-11-16 17:01 Common medications can accumulate in gut bacteria, a new study has found, altering bacterial function and potentially reducing the effectiveness of the drug. These interactions – seen for a variety of medications, such as depression, diabetes, and asthma drugs – could help researchers to better understand individual differences in drug effectiveness and side-effects, according to the study published in Natu...

World’s largest Hydro-Floating Solar Hybrid at Sirindhorn Dam begins commercial operation

2021-11-15 20:07 The world’s largest Hydro-Floating Solar Hybrid Project at Sirindhorn Dam by EGAT began commercial operation, and it will become a new tourist attraction of Ubon Ratchathani Province, ready to welcome tourists in early 2022. EGAT will move ahead with 15 more projects nationwide totaling 2,725 MW to reaffirm itself as a leader of clean energy in order to drive the country towards a sustainable low-carbon soc...

AMAZON RAINFOREST BIRDS’ BODIES TRANSFORM DUE TO CLIMATE CHANGE

2021-11-14 20:24 The most pristine parts of the Amazon rainforest devoid of direct human contact are being impacted by human-induced climate change, according to new research by LSU scientists. New analyses of data collected over the past four decades show that not only has the number of sensitive resident birds throughout the Amazon rainforest declined, but the body size and wing length have changed for most studied specie...

Era free of fossil-fuel powered vehicles comes into focus at COP26; draft outcome is met with calls for more ambition

2021-11-13 19:35 A world where every car, bus and truck sold is electric and affordable, where shipping vessels use only sustainable fuels, and where planes can run on green hydrogen may sound like a sci-fi movie, but here, at COP26, many governments and businesses said they have started to work to make it a reality. Wednesday was another day of new announcements, statements and coalition-building, this time focused on the...

New UNESCO education report calls for ‘new social contract’

2021-11-12 19:44 Imagining a new future for education by 2050, the UN Educational, Scientific and Cultural Organization (UNESCO) is asking three questions: What should be continued? What should be abandoned? And what needs to be creatively invented afresh?  In its new global report published on Thursday, entitled Reimagining our futures together: A new social contract for education, the agency is proposing answers to thes...

Scientists have discovered a striking difference between human and other mammalian neurons

2021-11-11 19:53 Neurons communicate with each other using electrical impulses that are produced by ion channels that control the flow of ions such as potassium and sodium. In an unexpected new discovery, neuroscientists from the Massachusetts Institute of Technology have shown that human neurons have a much smaller number of these channels than expected, compared to the neurons of other mammals. The researchers suggest tha...

A new imaging technique offers an unprecedented view of cells inside and out

2021-11-10 11:28 The microscopic world of cells and bacteria is incredibly important to understand, but it is difficult to study in detail, especially without harm to the subjects. Researchers from EPFL have developed a new microscopy technique that combines two existing ones, which allows scientists to create three-dimensional images of cells inside and outside with high resolution. Scientists have access to many differen...

Paleontologists have found the oldest animal- the "hermit"

2021-11-09 11:27 Hermit crabs use the shells of gastropods as a refuge and shelter from dangers. Today, several hundred species of such crustaceans are known, plus several species of worms that resort to a similar defense strategy. However, recently a team of paleontologists from China and the UK discovered the oldest example of this behavior — fossils of worm-like animals that settled in the shell about 500 million years a...

The Human Rights Council for the first time discussed issues of social protection of the population

2021-11-08 19:21 According to the UN High Commissioner for Human Rights Michelle Bachelet, against the background of the pandemic crisis and changes in the labor market, the issue of social protection of the population is becoming particularly acute. She stated this during the first-ever discussion of social protection issues held at the UN Human Rights Council. The forum participants, including representatives of Governme...

Turning plastic grocery bags into sustainable fuel

2021-11-07 19:26 More than 300 million tons of plastic waste are produced annually, which causes serious environmental issues because of plastic's life cycle and the difficulty of eliminating it. Consequently, most plastic waste ends up in either a landfill or the ocean. A significant number of plastics break down into microplastics, which are ingested by fish and other marine life causing havoc to marine ecosystems. ...

Einride launches autonomous pods and electric freight operations

2021-11-06 19:20 Swedish freight technology company Einride announced the launch of its operations in the United States. On Thursday, the company will officially begin testing its transport solutions — like its autonomous “pods,” electric trucks and “Saga” operating system — with partners like GE Appliances (GEA), Bridgestone and Oatly. The company also announced that it would introduce a U.S. version of its pod which has ...

The cold did not prevent people from settling in Iberia

2021-11-05 20:07 An international group of scientists led by Manuel Alcaraz Castaño from the University of Alcala (Spain) has published a paper in the journal Scientific Reports, which presents new data on the settlement of the first modern humans on the Iberian Peninsula in the Upper Paleolithic era. Contrary to previous beliefs, the first hunter-gatherers of our species did not avoid the interior of the peninsula during t...

Biologists have found out for the first time how much food the largest whales eat

2021-11-04 20:24 Today, the ocean is home to 14 species of baleen whales, including blue whales, which reach a mass of more than 150 tons. These are the largest animals on Earth, and their appetite is appropriate. Filtering water through the horn plates of the "whalebone", they consume several tons of food daily - mainly shrimp and other small marine crustaceans. However, these figures have so far been only approximate, obt...

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