On the 138th day of the Russia-Ukraine conflict, the United States approved another 400 million military aid, and the Ukrainian army repelled Russian attacks in many places.
Latest news from Russia and Ukraine: Russia and Ukraine are engaged in a fierce battle in Kharkov; suspected of being hacked, the website of the National Security Agency of Ukraine has become unavailable.
52 notifications: Suspension of graduate student recruitment, cancellation of qualifications for professional title promotions, withdrawal of paper awards and other penalties
52 notifications: Suspension of graduate student recruitment, cancellation of qualifications for professional title promotions, withdrawal of paper awards and other penalties