Latest news with #RussianAcademyofSciences
Saba Yemen
15 hours ago
- Science
- Saba Yemen
Russian Scientists Develop Coating to Protect Aircraft Engines
Moscow - (Saba): Scientists from the Ural Federal University and the Institute of Electrophysics of the Ural Branch of the Russian Academy of Sciences have developed an innovative coating made of silicon, aluminum, carbon, and nitrogen that can protect aircraft engine components from oxidation at extreme temperatures. The development combines low synthesis temperatures of up to 400°C, a high deposition rate, and high hardness. All of this will reduce the cost of manufacturing parts and extend the life of civil aircraft and helicopter engines, according to the Scientific Russia portal. The study, supported by the Russian Science Foundation and published in the journal "Ceramics," features high oxidation resistance at high temperatures. This means that in an oxygen-containing environment, when heated, a barrier layer is formed due to the aluminum content, preventing oxygen from penetrating deep into the protected material. The difficulty of obtaining such multicomponent functional coatings is due to the need to create a dense structure with the required chemical elements, according to Andrey Menshakov, a senior researcher at the Laboratory of Photovoltaic Materials at the Ural Federal University and the Institute of Electrophysics of the Ural Branch of the Russian Academy of Sciences. The coating was obtained using a hybrid technology combining aluminum evaporation and plasma activation of organosilicon. Experiments have shown that the new material has a hardness of up to 31 gigapascals (comparable to diamond-like coatings) and a dense, defect-free structure. By comparison, conventional methods for creating such protective films on the surface of turbine elements require temperatures above 1,000 degrees Celsius and often lead to the formation of various defects. Over two years, the scientists conducted more than ten series of tests, resulting in the creation of several hundred samples. According to the researchers, choosing the optimal conditions made it possible to achieve the formation of a dense nanostructured coating with the desired chemical composition, ensuring the new composite's high mechanical properties. Andrey Menshakov added, "We were able to vary the compounding conditions over a wide range, and the process itself is carried out at relatively low temperatures (100, 200, 400 degrees Celsius). This allows the application of protective coatings not only to steel and titanium products, but also to low-melting materials such as polycarbonate." We also face no obvious restrictions on scaling the facility for industrial production; in this case, everything depends directly on the task at hand. Plans include testing the coating on real components of gas turbines and jet engines, as well as adapting the technology for other industries. Whatsapp Telegram Email Print more of (International)
United News of India
19-05-2025
- Health
- United News of India
Russian scientists develop new method of curing cancer in scientific breakthrough
Moscow, May 19 (UNI) Russian scientists are developing a new method of curing cancer, revealed Alexander Sobolev, corresponding member of the Russian Academy of Sciences and head of RAS' Molecular Genetics of Intracellular Transport laboratory. The researchers, Sobolev told Scientific Russia magazine, have developed artificial protein molecules that can 'identify' cancerous cells and enter these cells' nuclei via intracellular transport mechanisms. These artificial molecules could potentially be used to carry toxic agents such as radioactive isotopes that would ensure the destruction of cancerous cells with minimal risk of affecting neighboring non-cancerous cells. Dubbed 'modular nanotransporters', these tiny cells consist of several modular blocks that can be altered depending on the task at hand. Sobolev explained that Rosatom's modular transporter—currently undergoing testing—comprises four key components. The first module detects cancer cells by targeting specific receptors on their membranes. Once inside the cell, the second module pierces the membrane bubble, granting access to the cell's interior. A third module, carrying a sequence of amino acids, directs the payload to the nucleus. The final module maintains the transporter's 3D structure and enables attachment of the toxic payload. All four stages have already been successfully demonstrated in laboratory experiments, Sobolev said. The safety of the new method had also been confirmed by previous tests of a similar modular nanotransporter involving the P. Hertsen Moscow Oncology Research Institute and A. Tsyb Medical Radiological Research Center. Having realised that virtually any kind of payload can be attached to the molecules they have developed, the researchers also came up with a concept of a 'diving antibody': an antibody or a molecule similar to it that could 'dive' into a target cell and interact with the target protein within. Thus, another module was created: a molecule similar to an antibody that could interact with target proteins. One such 'diving antibody' has already proven capable of protecting cells from oxidative stress. Another 'diving antibody' can identify coronavirus proteins and direct intracellular ferments to destroy that protein. According to Sobolev, this method could be used to create a cure for COVID, 'and not just for COVID.' In order for these creations to actually become medication, however, they first need to undergo preclinical and clinical trials. The modular nanotransporter method is specifically designed to deal with micro-tumors that are especially difficult to detect and hard to get rid of. The researchers also intend to pursue other directions of investigation that emerge during their studies, exploring potential new applications for these artificial molecules. UNI/SPUTNIK ANV SSP
Yahoo
03-04-2025
- Politics
- Yahoo
Ukraine's fugitive ex-PM reportedly running for Russian Academy of Sciences
Former Ukrainian Prime Minister Mykola Azarov, accused of high treason, is running for membership in the Russian Academy of Sciences (RAS), the T-Invariant academic community said on April 2. Azarov, who led the Ukrainian government under pro-Russian President Viktor Yanukovych between 2010 and 2014, is a candidate for the RAS membership in mining sciences. Despite this, Azarov has a zero Hirsch index, a key indicator of the quality of scientific activity. The fugitive ex-official has no academic publications, T-Invariant said, citing eLibrary, a Russian scientific electronic library integrated with the Russian Science Citation Index (RSCI). Azarov was a corresponding member of the National Academy of Sciences of Ukraine (NANU) until June 2022, when he was expelled. The Scopus database, which tracks academic article citations, also has no publications by Azarov. The Russian-born politician served as prime minister under Yanukovych's tenure before resigning amid the EuroMaidan Revolution in 2014. He now resides in Russia and makes regular anti-Ukrainian statements and promotes pro-Kremlin narratives on Russian state propaganda channels. In December 2022, Ukraine's State Bureau of Investigation and the Prosecutor General's Office completed a pre-trial investigation into Yanukovych's and Azarov's high treason cases. The Security Service of Ukraine (SBU) pressed further treason charges against Azarov and his assistant in October 2023. Last January, the case was sent to court under the charges of "information activities" on Russia's behalf. Read also: Putin issued a decree. Now, millions of Ukrainians face an impossible decision We've been working hard to bring you independent, locally-sourced news from Ukraine. Consider supporting the Kyiv Independent.
Saba Yemen
27-03-2025
- Science
- Saba Yemen
Russian Scientists Achieve Remarkable Breakthrough in Creating Perovskite Mineral in Just One Day
Moscow - Saba: Russian researchers have achieved a remarkable breakthrough by determining the optimal conditions for creating the rare perovskite mineral in just one day, a process that typically takes around two million years in natural conditions. The researchers at the Kola Science Center of the Russian Academy of Sciences used advanced autoclave devices to simulate geological conditions by precisely controlling high temperatures and extreme pressure, enabling them to accelerate chemical processes that would normally take geological epochs. The team faced significant scientific challenges during the two-year research, the most prominent of which was the difficulty of separating the mineral from sodium and the risk of the samples turning into unwanted materials, requiring precise adjustments to the experimental conditions. Dr. Gleb Sambarov, one of the team members, emphasized that this achievement marks a major leap in the field of materials science, as it is now possible to simulate millions of years of mineral development in a short period, opening new horizons for developing rare metal manufacturing technologies and accelerating research in this vital field. Whatsapp Telegram Email Print
South China Morning Post
26-03-2025
- Business
- South China Morning Post
Global South must lead world economy as US retreats, Boao Forum told
Global South countries must lead the world economy in the face of a changing economic order and Washington's retreat from global affairs, according to a panel at the Boao Forum for Asia in south China's Hainan province on Wednesday. Advertisement The assessment came amid rising uncertainty emanating from the White House as US President Donald Trump's actions, including tariffs, threatened to fracture the international trade system. Kirill Babaev , director of the Institute of China and Contemporary Asia of the Russian Academy of Sciences, said it was important for developing economies to unite and 'have the moral authority to lead the global economy'. He noted that the Global South had always been described in opposition to developed countries, or the Global North, but 'the reality has changed'. The Global North was 'no longer a united whole', with deep differences among countries, he said. Babaev said the Global South, which encompassed most of the world's countries, shared similar economic and social views, including an opposition to trade barriers such as tariffs and a respect for the political systems of other nations. Advertisement 'We are consistent in the values of globalisation and the principles we uphold. Based on these principles, most countries in the world must … build a new economic system. Such a system has gradually emerged on the world stage,' he said.
