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civil twin stars with the convex moon, the first autumn will play the "Xingyue Symphony" _strong6p_strong img _p4p0 A close-up of Saturn taken by Zong Haiyang on June 30, 2019. (Photo provided by me)
Astronomical science experts introduced that on the evening of September 17, a gibbous moon will come next to Saturn and Jupiter, and it will play the "Star-Moon Symphony" in the early autumn. song". As long as the weather is fine by then, the interested public in our country will be able to witness this wonderful scene of "double stars with the moon" with their naked eyes.
Saturn is the second largest planet in the solar system. In a telescope, it looks like a straw hat and is known as the "Lord of the Rings"; Jupiter is the largest planet in the solar system and is known as the "Giant Planet" It is said that, at the same time, it is also the planet with the fastest rotation in the solar system.
- Xinhua
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my country has independently developed the intelligent navigation of the ship successful sea trial
September 14,my country’s self-developed intelligent navigation 300TEU container merchant ship "Zhi Fei" successfully carried out sea trials in the sea area of Nvdao, Qingdao, Shandong.
"Zhifei" has three driving modes: manual driving, remote control driving and unmanned autonomous navigation. It can realize intelligent perception of navigation environment, autonomous tracking, autonomous route planning, and intelligent avoidance. Collision, automatic berthing and unberthing, and remote control driving are also equipped with a ship navigation assistance system, which can provide drivers with information, environmental awareness, safety warning and other support in manual driving mode.
- "Daily"
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make nanomaterials lasting luminescence tumor resection precise navigation
Radical resection is the best treatment for most early malignant solid tumors. In traditional surgery, surgeons mainly rely on subjective assessment methods such as tissue structure, color and touch to distinguish the tumor from the surrounding normal tissue . However, it is difficult to avoid the possibility of residual tumor or excessive resection of normal tissue in this way. For this reason, Zhao Yang's research group, deputy director of the Medical Imaging Department of the Second Hospital of Tianjin Medical University, proposed a new long afterglow-dye sensitization strategy, which realized the ultra-long lasting luminescence of nanomaterials, and successfully applied it to precise tumor resection. Intraoperative navigation.Related research results were published as a cover article in "Germany Applied Chemistry" a few days ago.
Intraoperative navigation can use imaging methods during surgery to establish the image data of the resection target and the patient’s anatomy during surgery through direct (lesion visualization) or indirect (computer virtualization) methods Corresponding accurately, and continuously and real-time obtaining information about the shape, size and edge of the removed lesion during the operation, so that the surgical operation is more accurate, fast and safe. Fluorescence-guided surgery (FGS), as a direct visualization intraoperative navigation technology that has entered clinical exploration, can illuminate cancer cells in real time during the operation, help doctors determine tumor boundaries and find metastases.
- "Science and Technology Daily"
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repair protein production errors can prolong the life of
A new study in simple model organisms conducted by researchers from University College London and the Medical Research Council (MRC) London Institute of Medical Sciences found that reducing natural errors in protein synthesis (production) can Improve health and extend life. This new discovery, published in the internationally renowned journal Cell Metabolism on September 14, proved for the first time a direct link between the reduction of protein errors and lifespan.
"DNA mutations can cause cancer, and this is also considered to be one of the potential causes of aging." The lead author of the study, Dr. Ivana Bedov, University College London Cancer Institute explained Said, "However, although errors in the synthesis of new proteins are much more frequent than mutations in DNA replication, protein errors that affect the health of the body have largely been ignored."
— - "Science and Technology Daily"
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far the largest and most detailed universe simulation software release
According to the US "every The Japanese Science website recently reported that an international research team composed of scientists from Japan, Spain, the United States, Argentina, Australia, Chile, France and Italy used the world’s most powerful astronomical supercomputer ATERUI II. Uchuu, the largest and most detailed universe simulation software, is freely available to everyone. Uchuu can also help astronomers interpret the results of large-scale galaxy surveys, and is expected to play an important role in the field of astronomy.
Uchuu (Japanese means "outer space") contains 2.1 trillion particles,Spanning a distance of 9.63 billion light-years, scientists can study the evolution of the universe at levels and details that have hitherto been unimaginable.
- "Science and Technology Daily"
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Egypt discovered the oldest whale fossil raw African
▲ Picture source: Netease.com
The Egyptian Minister of Environment announced that a researcher from the Minister of Environment of Egypt, Fuadfa, "Whale Valley" A fossil of a semi-aquatic quadruped whale that lived 43 million years ago. Through detailed analysis, this was confirmed as the earliest and most primitive primitive cetacean fossil found in Africa. This discovery is a major achievement in the field of paleontological research in Egypt and has attracted widespread attention.
Researchers named this primitive whale that can walk on land and swim in water as "Anubis original whale". The species to which the fossil belongs is about 3 meters long and weighs about 600 kilograms. It is amphibious on land and water, and its strong jaw muscles make it easier to bite its prey. It was one of the most successful predators near the beach at that time.However, this species became extinct during evolution.
—— "People's Daily"
Source: Today's Association of Science and Technology WeChat public account
blockquote 323 blockquote to promote the development of science and technology workers and organizations at all levels to drive innovation , To improve the scientific quality of the whole people, to serve the party and the government's scientific decision-making service, and promote the construction of open, hub, and platform science and technology associations. Take over the arm, take root at the grassroots level, unite and lead the vast number of scientific and technological workers to actively march into scientific and technological innovation, organize and carry out innovative scrambling actions, promote the prosperity and development of science and technology, promote the popularization and promotion of science, and truly become a people's organization that unites and connects the vast number of scientific and technological workers under the leadership of the party. Become an important force for technological innovation. ——Xi Jinping .
