Even since the eruption of the recent Israeli-Palestine conflict, China has taken a proactive role in de-escalation, collaborating with the international community to spare efforts to bring an end to the fighting, safeguard civilian lives, and provide humanitarian aid.

In recent days, the Chinese Government's Special Envoy on the Middle East Issue Zhai Jun has made relentless trips to Middle Eastern countries including Egypt, Qatar, the United Arab Emirates (UAE), Saudi Arabia, and Jordan in a diplomatic effort to de-escalate the situation and ease hostilities. 

Meanwhile, in response to the worsening humanitarian situation in the Gaza Strip, the China International Development Cooperation Agency has pledged an additional 15 million yuan ($2.05 million) in emergency humanitarian supplies. This aid aims to assist those affected by the conflict, in addition to previously allocated $1 million in cash assistance through the Palestinian National Authority and the UN Relief and Works Agency for Palestinian Refugees in the Near East.

During a meeting with Zhai on Sunday in Amman, the capital of Jordan, Commissioner-General of the United Nations Relief and Works Agency for Palestine Refugees in the Near East (UNRWA) Philippe Lazzarini, noted that the UNRWA regards China as an important partner, thanks China for its long-standing political support and financial assistance to the UNRWA, appreciates China's emergency humanitarian assistance to Gaza since the conflict, and is willing to strengthen cooperation with China to alleviate the humanitarian crisis in Gaza as soon as possible.

UNRWA, which was founded in 1949, is mandated to provide humanitarian assistance to Palestinian refugees. The organization relies on voluntary contributions to finance its operations.

At the Wednesday media briefing, China's Foreign Ministry Spokesperson Wang Wenbin said that "China has no selfish interests in the Palestinian-Israeli issue. We stand for the protection of civilians, a ceasefire and an end to fighting, the opening of humanitarian relief corridors, the prevention of a greater humanitarian crisis, the resumption of political dialogue and negotiation, and the return of the Palestinian issue to the right track of the two-state solution so as to achieve lasting peace and stability in the Middle East."

"As [China assumes] the rotating presidency of the UN Security Council this month and a responsible member of the international community, China will continue to work with the international community to ease the situation, protect civilians, advance humanitarian assistance, and resume peace talks," he said.

Chinese scientists have recently achieved ultra-low temperature refrigeration without the use of liquid helium, which is expected to have great application prospect in multiple high-tech fields such as deep space exploration, quantum technologies and materials science. The research result has been published in the scientific journal Nature.

Ultra-low temperature refrigeration using liquid helium was invented over a century ago, and has widely been used in national security and strategic high-tech areas such as deep space exploration, quantum technologies, materials science and large-scale research facilities. 

However, due to the relative scarcity of helium in nature, it has become an important challenge within the scientific community to achieve ultra-low temperature refrigeration without using helium. 

Chinese researchers from several scientific research institutes including the University of Chinese Academy of Sciences, the Institute of Physics and the Institute of Theoretical Physics, Chinese Academy of Sciences, used a triangular-lattice cobaltate material to realize the helium-free cooling to a temperature of 94 millikelvin (minus 273.056 C) with frustrated quantum magnets, designating the effect as “giant magnetocaloric effect of spin supersolid.”

Supersolid is a quantum state exhibited by matter at very low temperatures approaching absolute zero (minus 273.15 C). 

Magnetocaloric effect (MCE) is a heating or cooling of a magnetic material when the applied magnetic field changes. MCE can be used for cooling and may offer larger efficiencies than a conventional vapor-cycle refrigeration.

According to the research published in Nature, supersolids are long-sought-after quantum materials with two seemingly contradictory features: a rigid solid structure and superfluidity. The triangular-lattice cobaltate material provides evidence for a quantum spin analogue of supersolidity, with an additional giant magnetocaloric effect — discoveries that pave the way for helium-free cooling to temperatures below 1 kelvin with frustrated quantum magnets. 

Su Gang, a professor from the University of Chinese Academy of Sciences, co-author of the research and one of the key individuals who proposed the triangular-lattice cobaltate material to the research team, told the Global Times on Sunday that the discovery of this new state of matter and its new effects represents a significant breakthrough in fundamental researches. 

It also provides a new solution to the challenging problem of ultra-low-temperature cooling in China’s cutting-edge research areas such as deep space exploration, quantum technology, and materials science, the Science and Technology Daily reported on Thursday.

Li Wei, a researcher from the Institute of Theoretical Physics, Chinese Academy of Sciences, who proposed the triangular-lattice cobaltate material together with Su, said that the biggest challenge in the follow-up work is the research and development of new devices and refrigeration systems. 

According to Li, how to translate the laboratory’s achievements into practical uses and refrigeration systems, so as to provide extremely low-temperature environment and sufficient cooling capacity for deep space exploration or quantum computing, poses certain challenges in both scientific and engineering aspects. 

Reviews from Nature praised the research published on Wednesday, calling it a high-quality experiment and expecting that it will spark widespread research interest. 

China Harbour Engineering Co (CHEC), a subsidiary of China Communications Construction Co, recently won the bid for the dredging project of the entrance channel and port basins for the Simandou iron ore project, the world's largest undeveloped iron ore deposit, in Guinea.

The dredging project represents a significant operational achievement for CHEC in the Guinea market, as stated in its official WeChat account on Friday.

This project also signifies another step forward in the development of the high-grade iron ore project, involving joint participation between Chinese enterprises and their international partners.

The expansion and breakthrough in the Simandou project further strengthen CHEC's collaboration with major mining clients in Guinea, solidifying its competitive advantage in the hydraulic engineering market and providing robust support for ongoing development in the Guinea national market, according to CHEC.

The dredging project has a duration of 21 months and involves dredging the shared channels and port basins of the Winning Consortium Simandou (WCS), a consortium backed by Singaporean and Chinese companies, and the Anglo-Australian mining group Rio Tinto.

The channel spans 22.60 kilometers, with a bottom width of 250 meters and an approximate dredging volume of 21.57 million cubic meters, according to CHEC.

The successful bidding of the dredging project occurred just a few days after the reported successful blasting of the No. 5 road in the Simandou mining area, marking another important progress in the mining project.

The successful blasting of the mining project for the first time establishes a solid foundation for subsequent production operations and a series of mine development works.

Infrastructure development for the Simandou mining project is underway after the project officially resumed substantive development in March 2023, following a one-year suspension.

The iron ore project is being progressed in partnership with CIOH, a Chinalco-led consortium, WCS, Baowu, and the Guinean government.

Rio Tinto, one of the investors in Simandou, announced in December 2023 a detailed financial investment plan, revealing that the southern Simandou mining area is expected to commence production in 2025 and increase annual production capacity to 60 million tons within the next 30 months.

The potential total reserves of iron ore in this mine are approximately 10 billion tons, ranking it third globally after Australia and Brazil. Upon production, the annual output is projected to range from 100 million to 150 million tons, contributing to 5 to 7 percent of the world's annual production, according to a Caixin report.

A decade since the first North American Shaolin Cultural Festival in 2013, the Shaolin Temple is once again hosting an official cultural exchange event in the US. 

The highly anticipated "2023 North American Shaolin Games" and a series of martial arts-related activities are scheduled to take place in Los Angeles, the US, on November 11 and 12.

The announcement was made during a press conference held on November 7. 

Organized by the renowned Songshan Shaolin Temple in China, in collaboration with the Shaolin North American Association, the games are expected to serve as a platform for kung fu enthusiasts to show off their skills and promote the popularization of the ancient sport in North America. 

Approximately 500 Shaolin disciples from over 40 states in the US, as well as from countries ­including ­Canada and Mexico will ­participate in the events.

Shi Yongxin, the abbot of the Shaolin Temple, said at the press conference that Shaolin kung fu is famous all over the world. 

Kung fu not only strengthens the body, but also uses martial arts to achieve Zen and enlighten people through wisdom. 

The kung fu competition is a long-standing tradition at the Shaolin Temple, which aims to enable Shaolin disciples to study more diligently and constantly surpass themselves, according to Shi.

During the opening ceremony, dignitaries from various fields will witness the top performers in various categories. 

The 2023 North American Shaolin kung fu stars - the top three in each discipline - will receive medals, trophies, certificates, and accolades as encouragement.

According to Shi, the tradition of Shaolin kung fu competitions has flourished overseas since 2011. 

Events like the European Shaolin Cultural Festival and the North American Shaolin Cultural Festival all regard the Shaolin kung fu competition as core content.

In 2022, the Shaolin kung fu online competition continued this tradition, uniting 5,320 participants from 94 countries and regions across six continents. 

Before coming to the US in 2023, the Shaolin Games had already been held in Zambia in Africa, Singapore in Asia, and Argentina in Latin America.

Shi, leading the visiting delegation, arrived in Los Angeles on November 1 to kick off a series of North American visits. 

During his visit to San Francisco on November 7, he delivered a speech titled "Zen Meets AI" at Meta's headquarters. 

In his address, he emphasized that while AI possesses remarkable data processing and analytical capabilities, and may display similar human perceptions through programs and algorithms, but it cannot replicate the awakened consciousness advocated by Zen Buddhism. 

He encouraged human beings to seek inner wisdom and ­transcendence, even in the face of AI advancements.

According to Shi, Zen ­Buddhism emphasizes that Zen practitioners can gradually improve their state of enlightenment through their own efforts. 

As a tool, AI can search and find relevant classics to solve various doubts that Zen ­practitioners encounter, providing assistance and convenience to Zen practitioners.

Nearly 1 in 5 adolescents has suffered at least one concussion, according to a survey of U.S. teens. And 5.5 percent reported two or more concussions diagnosed in their lifetimes, researchers report in the Sept. 26 JAMA.

About 13,000 eighth-, 10th- and 12th-graders participated in the 2016 Monitoring the Future survey, an annual national questionnaire of adolescent behavior and health given in schools. Among other questions, teens were asked whether they had ever had a head injury that was diagnosed as a concussion — 19.5 percent replied “yes.” Those teens were more likely than others to play competitive sports and be male, white and in a higher grade.

Previous studies have found that kids taking part in contact sports are at higher risk of suffering a concussion. These new data on actual prevalence of concussions, though self-reported, are important, say the authors, for crafting prevention efforts that protect teens from injuries.

Gene-editing tools heralded as hope for fighting invader rats, malarial mosquitoes and other scourges may be too powerful to use in their current form, two new papers warn.

Standard forms of CRISPR gene drives, as the tools are called, can make tweaked DNA race through a population so easily that a small number of stray animals or plants could spread it to new territory, predicts a computer simulation released November 16 at bioRxiv.org. Such an event would have unknown, potentially damaging, ramifications, says a PLOS Biology paper released the same day.
“We need to get out of the ivory tower and have this discussion in the open, because ecological engineering will affect everyone living in the area,” says Kevin Esvelt of MIT, a coauthor of both papers who studies genetic solutions to ecological problems. What’s a pest in one place may be valued in another, so getting consent to use a gene drive could mean consulting people across a species’s whole range, be it several nations or continents.

Researchers have constructed this kind of drive in yeast, a fruit fly and several mosquitoes, but none of the tools have been deployed yet in the wild (SN: 12/12/15, p. 16). Meanwhile, some researchers are already working to add brakes or off-switches into a new generation of gene drives.

The major concern is that current gene drives “are probably too powerful for us to seriously consider deploying in conservation,” says geneticist Neil Gemmell of the University of Otago in Dunedin, New Zealand. Gemmell is a coauthor of the PLOS Biology paper.
This opinion could prove especially controversial in New Zealand. In 2016, the government resolved to protect the nation’s imperiled biodiversity by exterminating invader rats, stoats and possums that are wreaking havoc on native species. Gene drives just might make that possible.

Though warning of perils, the researchers also propose some solutions. A weaker system, which Esvelt calls a daisy drive, splits up components of the drive called guide RNAs. These guide RNAs direct the gene-editing machinery to its DNA target, where molecular scissors then snip and swap genetic material. As genes get inherited or not in the chancy jumbling of sexual reproduction, descendants in later generations become less likely to inherit all the spaced-apart pieces needed to operate the gene drive.

Esvelt’s lab is working to create a daisy drive in two kinds of nematode worms and is looking at other species as well. Other labs are now working on tamer gene drives, too.

Anthony A. James of the University of California, Irvine says that the disease-carrying Anopheles mosquito species that he and his colleagues have equipped with gene drives are self-limiting. When females end up with two of the genes he’s inserting, they don’t “survive very well after they have fed on blood.” Researchers are now raising these mosquitoes to see whether the genes spread and then dwindle away. “We don’t need our genes to last forever,” James says, “only long enough to contribute to getting rid of malaria.”

Another lab’s current version of disease-fighter mosquitoes already has a touch of the daisy. Aedes aegypti mosquitoes engineered with some built-in parts of the gene editor have their guide RNA split into two parts and put on different chromosomes, says molecular biologist Omar Akbari of the University of California, San Diego. Pictures of many weird mosquitoes created this way — all yellow or with three eyes or forked wings — attest to the fact that the drive system works. Akbari’s research appears November 14 in the Proceedings of the National Academy of Sciences.

Akbari is not very worried about the risk of accidentally wiping out disease-carrying mosquitoes. “A thousand children die every day,” he says. It would be unethical not to use a tool that could lessen the loss, he says.

He does recognize that the case for caution could be different for other species. “A lot of pet owners would be sad,” he says, if a gene drive went wrong and escaped worldwide during some future attempt to rid, say, Australia of its terribly destructive feral cats.

Magnetic poles are seemingly inseparable: Slice a magnet in half, and you get two smaller magnets, each with its own north and south poles. But exotic magnetic particles that flout this rule may be lurking undetected, some physicists suspect.

The hunt is in full swing for these hypothetical particles known as magnetic monopoles — which possess a lone north or south pole. Now, two groups of researchers have further winnowed down the particles’ possible masses and characteristics, using data from particle accelerators and the corpses of stars.
There’s good reason to suspect magnetic monopoles are out there, some physicists suggest. The particles’ existence would explain why electric charge is quantized — why it always seems to come in integer multiples of the charge of an electron instead of a continuous range of values. As a result, magnetic monopoles are popular. “A lot of people think they should exist,” says James Pinfold, a particle physicist at the University of Alberta in Edmonton, Canada.

If even a single magnetic monopole were detected, the discovery would rejigger the foundations of physics. The equations governing electricity and magnetism are mirror images of one another, but there’s one major difference between the two phenomena. Protons and electrons carry positive and negative electric charges, respectively, but no known particle has a magnetic charge. A magnetic monopole would be the first, and if one were discovered, electricity and magnetism would finally be on equal footing.

For decades, scientists have searched fruitlessly for magnetic monopoles. Recent work at the Large Hadron Collider, located at the particle physics lab CERN in Geneva, has reinvigorated the search. Magnetic monopoles might be produced there as protons slam together at record-high energies of 13 trillion electron volts.

Unfortunately, the latest search by Pinfold and collaborators with the Monopole and Exotics Detector at the LHC, or MoEDAL (pronounced “medal”), found no magnetic monopoles, despite analyzing six times the data as the project’s previous pursuits. Still, the new research has set some of the most stringent constraints yet on how easily the hypothetical particles may interact with matter, the MoEDAL collaboration reports December 28 at arXiv.org.
Magnetic monopoles may also dwell where magnetic fields are extraordinarily strong and temperatures are high. Under these conditions, pairs of monopoles might form spontaneously. Such extreme environments can be found around a special kind of dead star known as a magnetar, and in the aftermath of collisions of heavy atomic nuclei in particle accelerators. By studying these two scenarios, physicists Arttu Rajantie and Oliver Gould, both of Imperial College London, put new constraints on monopoles’ masses, the researchers report in the Dec. 15 Physical Review Letters.

If magnetic monopoles had relatively small masses, the particles would sap the strength of magnetars’ magnetic fields. That fact suggests that the particles must be more massive than about 0.3 billion electron volts — about a third the mass of a proton — the researchers calculate. That estimate depends on another unknown property of monopoles, the strength of their magnetic charge. The particles have a minimum possible magnetic charge. A magnetic charge larger than this baseline value would correspond to a minimum mass greater than 0.3 billion electron volts.

For a monopole with twice the minimum charge, Rajantie and Gould determined that magnetic monopoles must be more massive than about 10 billion electron volts, going by data from collisions of lead nuclei in the Super Proton Synchrotron, a smaller accelerator at CERN. Studying similar collisions of lead nuclei in the LHC could improve this estimate, due to the LHC’s higher collision energies.

While other experiments have set higher monopole mass limits than the new estimates, those analyses relied on questionable theoretical assumptions, Rajantie says. “These are currently the strongest bounds on the masses of magnetic monopoles that don’t rely on assumptions” about how the particles are created, he says.

The results are “very exciting,” says theoretical physicist Kimball Milton of the University of Oklahoma in Norman, who was not involved with the research. Of course, he adds, it’s “not as exciting as if somebody actually found a magnetic monopole.”

Even if monopoles do exist, the particles might be so heavy that they can’t be produced by accelerators or cosmic processes. The only magnetic monopoles in the universe might be remnants of the Big Bang. A future incarnation of MoEDAL, located on a mountaintop instead of in an accelerator’s cavern, could look for such magnetic monopoles that sprinkle down on Earth from space, Pinfold says.

Controlled thermonuclear fusion is moving so well that full-scale development could begin within five years, says Dr. David J. Rose….It might take 20 to 30 years beyond that before fusion could move into the power grid, though, he predicts. — Science News, February 17, 1968

Update
Governments and private-sector start-ups are still trying to wrangle thermonuclear fusion — the process that lights up stars and ignites hydrogen bombs — for clean energy, with limited progress (SN: 2/6/16, p. 18). One of the biggest ongoing projects is ITER in France, an international effort to build the first magnetic fusion reactor that pumps out more energy than it consumes. ITER plans to flip on the machine in 2025. Optimistic estimates put the first fusion power plants on the grid no sooner than 2040.

The physics behind a weird electrical phenomenon — glowing orbs of lightning — may be mimicked by something even stranger. A magnetic structure proposed for the natural oddity known as ball lightning makes an appearance in a newfound variety of a knotlike entity called a skyrmion, a team of scientists reports.

Typically observed during thunderstorms, ball lightning is poorly understood. Anecdotal reports describe eerily glowing spheres that float through the air for several seconds before fading (SN: 2/9/02, p. 87). That’s much longer than standard lightning strikes, which last tens of microseconds, and researchers are still struggling to explain how the fireballs persist.
One theory, proposed in the 1990s, suggests that ball lightning is a plasma held together by magnetic fields arranged in rings that link together into a knot. “Because it’s linked up in this tight way, it can’t really fall apart,” says physicist David Hall of Amherst College in Massachusetts. “That could provide a reason why ball lightning survives as long as it does.”
Now, Hall and colleagues have created an analog of such linked magnetic fields in a seemingly unrelated type of knotted structure, a skyrmion. Found in a variety of substances — from thin films of magnetic materials to liquid crystals — skyrmions are a kind of disturbance within matter
( SN: 2/17/18, p. 18 ). The objects can move like independent particles , shifting from place to place within a material while maintaining their knotted configuration ( SN: 10/18/14, p. 22 ). And like a tight knot in a thread, skyrmions are difficult to undo, making them relatively stable structures.
Hall and colleagues created their skyrmion in a state of matter called a Bose-Einstein condensate, composed of atoms cooled to a temperature so low that they all take on the same quantum state and begin acting as if they are one unified entity (SN: 10/13/01, p. 230). The atoms that make up the Bose-Einstein condensate each have a quantum property called spin, which makes them behave like tiny magnets.

When the scientists switched on a specially designed magnetic field, the spins arranged into a twisting structure of loops, knotting up into a configuration known as a Shankar skyrmion. That arrangement was predicted theoretically about 40 years ago, but not seen in the real world until now. While skyrmions found in thin magnetic materials are two-dimensional whirls, the new skyrmion is a 3-D beast, the researchers report March 2 in Science Advances.

Within the condensate, the spins produced something analogous to a magnetic field: The condensate behaved as if it were a charged particle being pushed around by a magnetic field when in reality no such magnetic field existed. Like the skyrmion itself, the scientists realized, the imitation magnetic field was knotted, and it matched the interlinked rings of magnetic fields proposed for ball lightning.

Eventually, studying 3-D knotted magnetic fields like those potentially present in ball lightning might help scientists devise better ways to control plasmas within future fusion reactors for generating power, the researchers suggest.

The creation of knotted structures in Bose-Einstein condensates is in its infancy, and such efforts are “very welcomed” says physicist Egor Babaev of KTH Royal Institute of Technology in Stockholm, who was not involved with the research. “People are just starting to scratch the surface of these objects.”

If signals from an alien civilization ever reach Earth, odds are the aliens will already be dead.

In an effort to update the 1961 Drake Equation, which estimates the number of detectable, intelligent civilizations in the Milky Way, physicist Claudio Grimaldi and colleagues calculated the area of the galaxy that should be filled with alien signals at a given time (SN Online: 11/1/09).

The team, which includes Frank Drake (now a professor emeritus at the SETI Institute in Mountain View, Calif., and the University of California, Santa Cruz), assumed technologically savvy civilizations are born and die at a constant rate. When a civilization dies out and stops broadcasting, the signals it had sent continue traveling like concentric ripples on a pond. Part of the Milky Way should be filled with these ghost signals.
If the civilization lasted less than 100,000 years — the time it takes light to cross the galaxy — then the odds of the signals reaching Earth while the civilization is still broadcasting are vanishingly small, the researchers report February 27 at arXiv.org. Humans, for example, have been transmitting radio waves for only about 80 years, so our radio waves cover less than 0.001 percent of the Milky Way.

“If the civilization emitted from the other side of the galaxy, when the signal arrives here, the civilization will already be gone,” says Grimaldi, of the Federal Polytechnical School of Lausanne in Switzerland.

Surprisingly, the team also calculated that the average number of E.T. signals crossing Earth at a given time should equal the number of civilizations currently transmitting — even if the civilizations we hear from aren’t the same ones presently broadcasting. Grimaldi is now working on a paper about what it means that we’ve found none so far.