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Why the electrons don't get into the nucleus?

2021-06-06 18:19 The electrons in an atom actually get into the nucleus. In fact, the electrons in the s - states tend to peak at the nucleus. Electrons are not small balls that can fall into the nucleus under the influence of electrostatic attraction. Rather, electrons are quantized wave functions that propagate through space and can sometimes act as particles in a limited way. An electron in an atom propagates according ...

INTERVIEW Russian language of the UN, what is it?

2021-06-05 16:04 On June 6, the UN celebrates the Day of the Russian Language. The tradition of honoring the six official languages of the United Nations was born in 2010, and a year later this holiday, celebrated on the birthday of the poet Alexander Pushkin, was added to the official calendar in Russia by presidential decree. At the UN, Russian is spoken at meetings of the General Assembly and the Security Council, at con...

Scientists have measured the mass of human chromosomes for the first time

2021-06-04 12:46 A team of scientists used coherent X-rays, available on the latest synchrotron sources, to determine the mass of all 46 human chromosomes. Their weight was more than expected. Scientists from the Center for Nanotechnology at University College London (UK) and the State University of New Mexico (USA) for the first time measured the mass of chromosomes in the human body using X-rays. As described in the stud...

‘Simply no scenario’ where humanity can survive on an ocean-free planet

2021-06-03 17:34 The world must harness “clear, transformative and actionable solutions” to address the ocean crisis, the President of the UN General Assembly said on Tuesday, opening a meeting to generate momentum towards the 2022 UN Ocean Conference, when public health safety measures allow. “Simply speaking, our relationship with our planet’s ocean must change”, Assembly President Volkan Bozkir told a high-level themat...

How does climate change affect the migration routes and nesting sites of peregrine falcons

2021-06-02 14:04 A team of researchers from the United Kingdom, the United Arab Emirates, China and Russia, including scientists from the Institute of Plant and Animal Ecology of the Ural Branch of the Russian Academy of Sciences, studied the populations of peregrine falcons in Northern Eurasia using satellite transmitters, genetic analysis and serious mathematical calculations. The work was carried out on the initiative an...

New Fungus Strain Effective against Varroa Mites in Honeybee Colonies

2021-06-01 11:47 A new strain of Metarhizium brunneum, a common fungus found in soils around the world, could provide a chemical-free method for eradicating Varroa destructor, the devastating ectoparasite of honeybees. Unlike other strains of Metarhizium, the new strain can survive in the warm environments common in honeybee hives, which typically have a temperature of around 35 degrees Celsius (95 degrees Fahrenheit). Var...

Spin ice in magnetic nanostructures could change modern computing

2021-05-31 17:57 Scientists have taken a step towards creating powerful devices that use magnetic charge, creating the first ever three-dimensional copy of the material known as spin-ice. Spin ice materials are extremely unusual because they have so-called defects that behave like the single pole of a magnet. These unipolar magnets, also known as magnetic monopoles, do not exist in nature; when each magnetic material is c...

Share gains from extracting precious raw materials more equitably, guard against pitfalls: UN chief

2021-05-30 12:13 Extracting minerals, metals and other valuable raw materials from the earth, represents a “crucial juncture” between resources, ecosystems and people, all of which have an essential role to play in advancing sustainability and equity, the UN chief said on Tuesday. Speaking at the Global Roundtable on Transforming Extractive Industries for Sustainable Development, Secretary-General António Guterres said: “...

international competition of research works "Science in the modern world"

2021-05-06 15:46 We invite you to take part in the international competition of research works dedicated to International Youth Day (UN) "Science in the modern world". The competition is organized and conducted by the scientific and educational center "Science Idea". The competition is open to pupils of schools and organizations of additional education, students of organizations of secondary vocational education, students ...

New species of duck-billed dinosaur found in Japan

2021-04-30 12:54 It is distinguished by the absence of a characteristic hadrosaur head crest. Scientists from Japan and the United States believe that this discovery forces us to reconsider the ideas about the migration of duck-billed dinosaurs, which did not move from North America to Asia, but vice versa. Hadrosaurs are the most common type of dinosaur. They had flattened snouts, were herbivorous, and lived more than 65 m...

World could lose coral reefs by end of century, UN environment report warns

2020-12-23 17:20 Every one of the world’s coral reefs could bleach by the end of the century, unless there are drastic reductions in greenhouse-gas emissions, the United Nations Environment Programme (UNEP) has warned. “In the face of inaction, coral reefs will soon disappear,” Leticia Carvalho, head of UNEP’s Marine and Freshwater Branch said on Monday. “Humanity must act with evidence-based urgency, ambition and innov...

Scientists discover a new complex europium hydride

2020-12-21 18:26 A team of researchers from Russia, the United States and China led by Skoltech Professor Artem R. Oganov have discovered an unexpected very complex europium hydride, Eu8H46. The paper detailing the discovery has been published in The Journal of Physical Chemistry letters. Superhydrides of rare-earth metals are interesting compounds that form under pressure: some exhibit high-temperature superconductivity t...

The oldest samples of mammalian wool were found

2020-11-23 18:34 RIA of news. Spanish paleontologists reported finding two unique amber specimens in the province of Teruel. In one of them, scientists found dinosaur feathers, and in the other — the world's oldest mammalian hair. The age of the finds is 105 and 110 million years, which corresponds to the early Cretaceous period. Cretaceous amber has been found in the province of Teruel before, but this is the first ti...

Beat the record temperature for superconductivity

2020-11-05 20:32 Compressing simple molecular solids with hydrogen at extremely high pressures, University of Rochester engineers and physicists have, for the first time, created material that is superconducting at room temperature. Featured as the cover story in the journal Nature, the work was conducted by the lab of Ranga Dias, an assistant professor of physics and mechanical engineering. Dias says developing materials...

Denisovan DNA found in sediments of Baishiya Karst Cave on Tibetan Plateau

2020-11-01 13:48 One year after the publication of research on the Xiahe mandible, the first Denisovan fossil found outside of Denisova Cave, the same research team has now reported their findings of Denisovan DNA from sediments of the Baishiya Karst Cave (BKC) on the Tibetan Plateau where the Xiahe mandible was found. The study was published in Science on Oct. 29. The research team was led by Prof. CHEN Fahu from the Inst...

The ancient Mayans used zeolite and quartz to filter drinking water

2020-10-26 18:11 Tikal-an ancient city in what is now Northern Guatemala, is one of the largest political, economic and military centers of the pre-Columbian Mayan civilization. It was inhabited from the 6th century BC to the 10th century ad, and during its heyday the population was up to 90,000.A large reservoir, called reservoir Mariental, was an important source of drinking water for the city. A team of archaeologists fr...

Real-time tracking of serotonin and dopamine opens up a new perspective on the brain

2020-10-13 20:12 Dopamine and serotonin are brain chemicals that affect a range of neurological disorders, including Parkinson's disease and depression, so understanding how they work could be key to developing more effective treatments for these conditions. The new tool offers an unprecedented look at these neurotransmitters in action, allowing scientists to track their activity in real time for the first time. Both ...

Scientists have developed a technology for printing personalized neuroprostheses on a 3D bioprinter

2020-08-24 17:34 Researchers from Saint Petersburg state University have developed a 3D printing technology for soft neuroprostheses called NeuroPrint, which in the future can help literally put a person on their feet after a spinal cord injury. The new development has already shown its effectiveness in studies on mammals and fish Danio-rerio. The results are published in the prestigious scientific journal Nature Biomedical...

UNESCO expert: traditional education is becoming different

2020-08-17 21:29 Over the past six months, a unique experiment has taken place – millions of children around the world have switched to digital education overnight. What problems did the pandemic reveal in this area, how to solve them, will countries return to traditional education, and what are the advantages and disadvantages of online education? About Nargis Sheki told Alexander Molchanov – expert of UNESCO Institute for...

New method to fight cancer with molecular fibers

2020-08-14 20:12 According to the Federal Statistical Office of Germany, cancer is one of the most frequent causes of death, accounting for almost 25% of all deaths cases. Chemotherapy is often used as a treatment, but also brings side effects for healthy organs. Scientists around David Ng, group leader at the Max Planck Institute for Polymer Research, are now trying to take a completely different approach: By means of targ...

Paleontologists have tracked the migration and extinction of mastodons

2020-08-09 14:50 DNA analysis from the remains of mastodons from all over North America showed that these majestic animals could make long journeys, mastering the Northern territories, but as a result, they only died out faster. As the climate warms, some species may expand their range, moving further North: this was the case with American mastodons, relatives of our mammoths, during the interglacial periods. However, this...

World’s richest nations must protect child well-being in COVID-19 fallout: UNICEF

2020-08-06 15:40 Children in the world’s richest countries are grappling with mental health concerns, obesity and poor social and academic skills, according to a new study published on Thursday by the UN Children’s Fund (UNICEF). The report by UNICEF’s Office of Research Innocenti, urges governments to improve and protect child well-being in the face of the economic, social and educational fallout from the COVID-19 pandemi...

New species of woodworm butterflies discovered in Azerbaijan

2020-07-30 20:10 Professor Roman Yakovlev From the Institute of biology and biotechnology of the Altai state University and Natalia Snegovaya From the Institute of Zoology of the Academy of Sciences of Azerbaijan described a new species of butterfly from the family of woodworms (Cossidae) that lives in the Shirvan steppe in Central Azerbaijan. The family of woodworms is widely distributed around the world. It has more than...

Geologists have clarified the age of the earth's inner core

2020-07-27 11:37 The massive iron-nickel core of our planet is divided into an internal solid and an external liquid. The convection transfer of heat from the center to the Earth's surface causes the liquid core to constantly mix. It is believed that the movements of this conducting fluid create a global magnetic field that protects the planet and life on it from constant and deadly bombardment by streams of cosmic part...

Lipid nanoparticles have been used in gene therapy

2020-07-25 18:22 Scientists from Ohio state University have created lipid-based nanoparticles that can deliver genetic material to cells to fight diseases associated with mutations. Effective and safe delivery of "therapeutic genes" to the body is one of the most important problems in the development of gene therapy. Most often, specially designed viruses are used for this purpose. In the new work, the authors applied lipi...

Mauritius oil spill highlights importance of global maritime laws: UN trade body

2020-07-23 21:24 The devastating oil spill off the east coast of Mauritius has highlighted the need for global adoption of international legislation that govern the seas and protect small island states and their vulnerable marine ecosystems against ship pollution, UN trade body UNCTAD has stated. The grounding last month of the MV Wakashio in an environmentally sensitive and biodiverse area, has endangered marine life, fo...

Scientists have explained the skeletons of dinosaurs withstood huge loading

2020-07-23 21:06 A team of paleontologists, mechanical engineers, and biomedical engineers compared computed tomography of fossilized bones of hadrosaurs and other dinosaurs with those of extinct and living mammals and found that the architecture of the trabecular bone of dinosaurs is unique and can withstand large weights (up to 47,000 kg) and differs from mammals and birds. The largest of the earth's dinosaur...

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