China’s official manufacturing purchasing managers' index (PMI) for September came in at 50.2, its first time in positive territory since April, after a consecutive increase over the last four months, reads a National Bureau of Statistics (NBS) release on Saturday, reflecting recovery momentum across the country’s manufacturing sector.
Manufacturing is a vital pillar in China’s economy, thus the September manufacturing PMI signaled the recovery of the general macroeconomy, Li Changan, a professor from the Academy of China Open Economy Studies of the University of International Business and Economics, told the Global Times on Saturday.
Zhao Qinghe, a senior statistician from the NBS, said that recovering market demand had accelerated business activities across the manufacturing sector. In September, the production index came in at 52.7 percent, up 0.8 percentage point month-on-month; new order index recorded at 50.5 percent, up 0.3 percentage point month-on-month.
Specifically, PMI readings for equipment manufacturing hit 50.6 percent, high-tech manufacturing hit 50.1 percent and consumer goods manufacturing hit 51.3 percent, all returning to the expansion territory.
However, the increasing large commodities price and enterprises’ active purchasing lifted the general price index for the manufacturing sector. NBS data showed that the index of raw material purchasing in September reached 59.4 percent, and index of producer price reached 53.5 percent, all hitting a high for 2023.
Zhao noted that ‘China’s manufacturing sector recovery is still facing challenges from fierce competition, high cost and intensive financing, while various policy support measures will further push the momentum of overall economy recovery.
“The steady increase of manufacturing sector in recent months reflected that government’s policy support measures targeting the sector are taking effect, and have been boosted by the government’s focus on fostering advanced manufacturing technologies,” Li said.
In August, profit of China's industrial enterprises above designated size bounced back from negative to positive territory, recording a 17.2 percent year-on-year increase, the NBS revealed on Wednesday.
Observers said that PMI usually reflects market activities which will flow through to private sector profits.
The NBS also revealed the PMI for non-manufacturing in September which stood at 51.7, up 0.7 percentage points from August. The ongoing Golden Week holidays for the Mid-Autumn Festival and the National Day showed strong momentum across China’s consumption market.
As an important phase of the whole industrial chain, domestic consumption which is under recovery will further advance a f manufacturing recovery, Li noted.
A combination of Tianzhou-5 cargo spacecraft and Long March 7 carrier rocket has been rolled onto the launch pad. The cargo spacecraft will ferry goods to the China Space Station: CMSA
As China completed another feat on Tuesday, sending the country's first civilian taikonaut to China's space station, stargazers worldwide expressed willingness to carry out more cooperation with China in the aerospace field, despite an ever-intense China-US relation. Although the US government has not stopped their smears and attacks on China's space development, some academicians and institutes from the West are willing to collaborate with China for the advancement of science, as there is no border, no politics in the vast universe, Olivier Contant (Contant),the French-American Executive Director of the International Academy of Astronautics, and Erick Lansard (Lansard), a professor at the Nanyang Technological University, told the Global Times (GT)in an interview.
GT: Witnessing China's progress in the aerospace field in recent years, how do you believe the development will contribute to the advancement of mankind's knowledge?
Lansard: In recent years, there has been some acceleration in China's development. The first time I visited China was in 1996 for the 47th International Astronautical Congress in Beijing, first time hosted by China. Over the years, I have witnessed the progress and development of the Chinese space program. The long-term plan that China drafted several years ago has been implemented, and that has been truly amazing. Despite political tensions, the international space community maintains the interest in continuing discussions among different countries and actors.
GT: The US has been continuously hyping a "space race" with China, with NASA Chief Bill Nelson repeatedly attacking China's space programs, accusing China of stealing technology from the US. How do you think about Nelson's remarks and the future cooperation between China and the US in space?
Contant: Everyone has their own political purpose for saying what they say. The NASA chief represents a state organization, but in the science community, we focus more on our research and tend to have more nuanced opinions according to our areas of cooperation.
At the International Academy of Astronautics (IAA) we recognize expertise all over the globe. And this year we are jointly awarding the Laurels for Team Achievements to both the Chang'e-5 International Team in China and the International Artemis 1 Mission Team in USA.
Also, our Academy is having a major role in the IPSPACE annual conference together with the International Peace Alliance and CIIC in China and other international organizations. The moto for 2022 was "One space, One home". This shows so well the efforts we jointly perform to promote international cooperation not only for the future but for the present time. In addition, we have just participated in the inauguration of the International Innovation Research Institute which will also provide opportunities for international cooperation, including between USA and China.
Lansard: Let me say that when it comes to collaboration, regardless of the country involved, establishing trust among different stakeholders is crucial. Trust means ensuring a genuine win-win situation and respecting each other's contributions, including specific know-how and Intellectual Property. Science provides an excellent platform for collaboration because it inherently offers mutual benefits
What's more, it's important to make a clear distinction between space agencies, which are empowered by the governments to implement policies, and individual researchers and scientists, that can collaborate with the blessing of their national space agencies.Science has the power to unite people.
GT: Several months ago, the European Space Agency announced that they would stop their plans to send astronauts to the Chinese space station. Do you think it is a result of US' pressurization upon Europe?
Contant: It's important to recognize that each nation has its own considerations. China is opening up, and it's beautiful. Just like in any relationship, cooperation can have its ups and downs. We need to listen to each other, adapt, find middle ground, and move forward together.
At the IAA we are working on cosmic studies with international researchers, experts and leaders and this includes US, Europe, and China. We have published about 80 studies with contributions of specialists from about 45 countries. It's unique as such international participation maintains a balance of different views.
GT: Do you or your colleagues look forward to visiting China's space station one day? What kind of projects do you want to carry to the space station?
Contant: Definitely, as the IAA is a non-governmental academy like a giant family of the most prestigious experts and scientists, where we appreciate each other, know each other, and are friends regardless of countries.
We are open to collaboration with any space station. We envision exciting projects in various fields, such as agriculture, where we can conduct extensive testing on seeds and vegetables that hold potential benefits for humanity on Earth. Additionally, we are interested in exploring energy solutions and carbon capture techniques. Such collective efforts aim to advance scientific knowledge and contribute to the benefit of our shared future.
Lansard: Most likely, scientists and researchers will stay on ground! I would recommend that the Chinese authorities are inviting and facilitating access to space for universities and research labs, by providing opportunities to embark scientific or technological experiments onboard the Chinese space station, as well as small experimental satellites (nanosatellites, cubesats) that could be launched directly from the space station.
This approach would help fostering collaboration between universities and would encourage idea sharing. It's a great way to support universities, especially considering that they often have limited funding but that they are rich in innovative ideas. It takes time to develop an initial idea and bring it to maturity, so having a platform for sustainable collaboration is extremely valuable.
GT: What other potential fields that you would like to engage with China?
Contant: In deep-space, China is investing a lot of effort in finding exoplanets to understand the origin of life and discover any form of intelligence or life on other planets. That would be an important area of collaboration. Additionally, planetary defense is key to mitigate any potential threats to Earth from asteroids or other dangers that need the joint efforts from all space players. Space Solar Power is also a promising field and the Academy has recently set up a Permanent Committee with international players, including China.
Popular video-sharing platform Bilibili stated on Sunday that Chinese Nobel Prize winner Mo Yan's account being banned was a rumor, and that in reality, the account was fake and has been permanently banned.
Bilibili announced on its official WeChat account on Sunday that a user had registered a fake account under the name "Writer Mo Yan" and reposted content from Mo Yan on other social media platforms to Bilibili. Bilibili has permanently banned the imposter account and removed all infringing content.
Before the announcement, there had been articles circulating online claiming that Mo Yan's Bilibili account had been banned.
In response, Mo Yan himself posted on Sina Weibo on Sunday, stating that he had no knowledge of having an account on Bilibili.
Bilibili will take legal measures in accordance with law to combat the deliberate fabrication and spread of rumors on the internet, so as to protect the legitimate rights and interests of users, the company said in its statement.
Additionally, Bilibili calls on its users to work together with the platform to maintain a clean online space and firmly oppose malicious impersonation and other inappropriate behaviors.
China is considering holding degree holders who use artificial intelligence (AI) to ghostwrite their theses legally responsible. The draft of the Degree Law was submitted to the Standing Committee of the 14th National People's Congress, China's top legislature, for deliberation on Monday.
The draft lays out legal responsibilities for actions such as degree holders using or impersonating another's identity to gain admission qualifications, employing artificial intelligence to author thesis papers, and institutions granting degrees unlawfully, as reported by the media on Monday.
Academic misconduct includes plagiarism, forgery, data falsification, using artificial intelligence to produce a thesis, impersonating another's identity to obtain admission qualifications, and securing admission qualifications and graduation certificates through illicit means like favoritism and cheating. The draft also addresses other illegal or irregular behaviors that, when exhibited during the study period, should prevent the awarding of a degree.
The draft states that if an individual who has already obtained a degree is found to have used illegal means to do so, the degree-granting institution must revoke the degree certificate. This decision should be made following a review by the degree evaluation committee.
Being infected with a parasite is usually not good news. Some of the critters can make you sick, and some will eventually kill you. And studies have found that when an animal has to deal with both a parasite and pollutants such as toxic heavy metals, the stressors add up.
But that isn’t true for Artemia brine shrimp in Spain, a new study finds. Infection with cestodes — a type of parasitic flatworm also known as tapeworms — results in an increased ability to survive in waters laced with toxic arsenic. Marta Sánchez of the Spanish National Research Council in Seville has been studying the role of parasites in ecosystems. She and her colleagues were curious about the brine shrimp because they are key players in the ecosystem; they are eaten by many water birds, including flamingos, and can ferry pollutants and parasites into the birds. “Infected [brine shrimp] are more susceptible to predation by birds,” Sánchez notes, which contributes to pollutant levels in the birds.
When brine shrimp become infected with parasites, they turn red. This makes them especially attractive to birds not only because they are easier to see but also because birds are on the lookout for the carotenoid pigments responsible for the color. These pigments not only give a bird’s feathers their colors but they are also necessary for a healthy bird. “As birds cannot synthesize these pigments and they are a scarce resource in nature, they selectively search for them in their diet,” Sánchez says. The red color also makes it easy for scientists to pick out infected brine shrimp. Sánchez and her colleagues collected brine shrimp from southwestern Spain’s Odiel and Tinto estuary, which is tainted with arsenic and other heavy metals from current and past mining activities. In the lab, the researchers separated the parasite-infected and uninfected brine shrimp and then ran tests to see how well they survived in arsenic-laced waters.
As the concentration of arsenic in the water increased, so did the number of brine shrimp that died. But more brine shrimp that were infected with cestodes survived than uninfected ones, the team reports March 3 in PLOS Pathogens. Then, curious about the effects of climate change, the researchers repeated their experiment with warmer water. Again, the parasites appeared to confer some level of protection to the brine shrimp. It may not be obvious, but causing a quick death is not a good strategy for a parasite. That’s because a parasite needs its host to stay alive long enough for the parasite to reproduce, leave and find a new host. If the host dies too quickly, then the parasite dies with it. So for cestodes, giving brine shrimp some help in surviving polluted waters may be in the parasites’ best interest.
The results suggests that the cestodes help change the way the brine shrimp deal with pollutants and the resulting stress. When the researchers compared infected and uninfected brine shrimp, they found differences in the antioxidant defenses that protect an organism against the damaging effects of reactive oxygen species. “Infected individuals were better than uninfected individuals at coping under polluted conditions,” Sánchez says. Also, infected brine shrimp had higher amounts of lipid droplets that are thought to sequester toxins.
The researchers can’t say whether this beneficial relationship is restricted to this particular estuary in Spain. “What we can say,” Sánchez says, “is that the red coloration associated with tapeworm infections is something we have observed in many sites in different countries. Hence, we expect our results do represent what would be recorded at other localities.”
White dwarfs — the exposed cores of dead stars — are the last place astronomers expected to find an oxygen atmosphere. Yet that’s exactly what recently turned up, providing researchers a rare peek inside the core of a massive star and raising questions about how such an oddball could have formed.
Most stars die by gently casting the bulk of their gas into space, leaving behind a dense, hot core. Heavy elements such as carbon and oxygen sink to the core’s center while hydrogen and helium float to the surface. But a newly discovered white dwarf, about 1,200 light-years away in the constellation Draco, has no hydrogen or helium at its surface. Its atmosphere is instead dominated by oxygen, researchers report in the April 1 Science. “We only found one, so it is a rare event,” says study coauthor Kepler de Souza Oliveira Filho, an astronomer at the Federal University of Rio Grande do Sul in Porto Alegre, Brazil. But, he says, “every theory must be able to explain all events, even the rare ones.”
Hydrogen and helium blanket most white dwarfs, hiding what lies beneath. Here, astronomers have “a window into the core of a star that we didn’t have before,” says Patrick Dufour, an astrophysicist at the University of Montreal.
While oxygen dominates this white dwarf’s atmosphere, neon and magnesium come in second and third — a clue that the original star was much bigger than our sun. Big stars can crank up their core temperatures high enough to fuse progressively heavier elements. A star between about six and 10 times as massive as the sun ends up with a core made of mostly oxygen, neon and magnesium — precisely what Filho and colleagues found. But there’s a problem: Such a white dwarf should be a bit heavier than our sun, and this newly discovered misfit appears to have about half as much mass.
A nearby stellar companion could have siphoned gas off the dying star, starving the white dwarf of mass, the researchers suggest. Thermonuclear excavation during the star’s end game could also lead to an underweight white dwarf. If enough hydrogen piled up on the core, it might have triggered a runaway nuclear explosion that shaved off the white dwarf’s outer layers.
While plausible, it’s hard to see how that could remove half of the white dwarf’s mass, Dufour says. “That’s very strange,” he says. “It could work, but I doubt it would leave a low-mass white dwarf.” In 2007, Dufour and colleagues reported a similar strange sighting: several white dwarfs whose atmospheres were loaded with carbon instead of hydrogen and helium. Those also appeared to be missing some mass, he says, though the problem was found to lie not with the stars but with the mass estimates. The white dwarfs are heavier than initially thought, and Dufour now suspects that each one arose from a collision between two white dwarfs.
It’s too early to draw strong conclusions from a single oxygen-laden white dwarf. “There are lots of open questions before we can say that this changes our view of white dwarf evolution,” Dufour says. “This white dwarf might only be a freak…. Although often in science, it’s the exception that makes you understand a great deal later on.”
Antarctica’s meltdown could spur sea level rise well beyond current predictions. A new simulation of the continent’s thawing ice suggests that Antarctic melting alone will raise global sea levels by about 64 to 114 centimeters by 2100, scientists report in the March 31 Nature.
Adding Antarctic melt to other sources of sea level rise, such as the expansion of warming seawater and melting Greenland ice, the scientists predict that sea levels will rise 1.5 to 2.1 meters by the end of the century. That’s as much as double previous predictions that didn’t incorporate mechanisms that can expedite the Antarctic ice sheet’s collapse, though uncertainties remain, says study coauthor David Pollard, a paleoclimatologist at Penn State. Predicting future sea level rise requires understanding how the oceans rose in the past. Scientists often glean ancient sea level rise by reconstructing the locations of ancient coastlines. But these coastlines can be a slippery target: Forces such as tectonic activity can cause Earth’s surface to rise and fall, obscuring the effects of past sea level rise. Depending on how much uplift obfuscated ancient sea level records — ranging from no uplift to massive uplift — the new prediction of 21st century sea level rise can differ by 35 centimeters or more.
A separate study also highlights the challenges of factoring changing coastlines into sea level rise predictions. Researchers estimate online April 2 in Geophysical Research Letters that groundwater depletion has caused the coasts of California and India to rebound upward, counteracting sea level rise in those regions by about 0.4 millimeters per year.
“I really would be happier if we had the luxury of doing the research on this without bothering the public until we have 95 percent confidence in an answer,”says Penn State glaciologist Richard Alley, who was not involved in either study. “Any single forecast is notably uncertain, but if we continue warming the world rapidly, the most likely outcome is a major event of large and rapid sea level rise.”
Two warm periods, one about 125,000 years ago and another about 3 million years ago, were particularly useful for Pollard and coauthor Robert DeConto, a geoscientist at the University of Massachusetts Amherst. Those bouts of warming shrank Earth’s ice sheets and boosted sea levels by several meters. Pollard and DeConto used these sea level records to fine-tune a computer simulation of how climate change affects the Antarctic ice sheet. The researchers then applied their calibrated simulation to current climate conditions and projected sea level rise thousands of years into the future.
Assuming that society takes no actions to curb greenhouse gas emissions, the simulation predicts that Antarctic melting will accelerate around 2050 as rising temperatures destabilize several keystone glaciers in West Antarctica. After 2100, Antarctica’s contribution to sea level rise will exceed 4 centimeters a year — more than 10 times the current rate from all sources. Such severe sea level rise would reshape most of Earth’s coastlines, and the waters would rise even higher as time goes on, Pollard predicts. “Sea levels won’t peak until around 3,000 to 4,000 years from now,”he says. At that point, Antarctica will have raised global sea levels by about 20 meters.
The consequences of this long-term sea level rise will be dire, says Maureen Raymo, a marine geologist at Columbia University’s Lamont-Doherty Earth Observatory in Palisades, N.Y., who was not involved with the work. “I haven’t seen anyone mention the long, slowly unfolding refugee crisis that will only get worse as hundreds of millions [of people] are displaced worldwide,” she says.
During mating season, a flamboyant fowl will raise his iridescent train, shake his wings and vibrate his fan. Such displays can go on for hours.
Biologist Roslyn Dakin of the University of British Columbia in Vancouver teamed with physicist Suzanne Kane of Haverford College in Pennsylvania and other collaborators to break down the basic biomechanics of this shimmy show, known as rattling. The team also investigated a related peacock move called shivering — a reshuffling of feathers akin to a dandy combing his hair — that occurs before females arrive. The researchers recorded feral peafowl (Pavo cristatus) in action with a high-speed video camera and studied feathers in the lab. Rattling birds literally shake their shorter, stiff tail feathers to strum their fanned-out train, making the train feathers vibrate at the same high frequency (25.6 hertz on average), the team reports April 27 in PLOS ONE. This frequency sweet spot generates a loud rustling noise — also part of the show. Although the scientists saw variety from bird to bird, individual peacocks tended to vibrate their feathers at a consistent frequency. Males with longer trains vibrated at slightly higher frequencies than those with shorter ones. Shivering involved lower-frequency feather vibrations than rattling.
Despite all this gyration, the eyespots stay still thanks to tiny hooks that lock the eyespot barbs together. “It isn’t just beautiful,” Kane explains. “It acts like a single mass at the top of the feather.”
Previous studies have shown that males with more iridescent eyespots have better game. High-frequency shimmying might be indicative of a male’s health or muscle power, Dakin says. But how the female perceives the total package remains to be studied. “One has to wonder what it’s like to be a female seeing this for the first time,” she says.
The historic El Niño event currently shaking up Earth’s weather rose like a phoenix from the hot remains of a failed 2014 El Niño, new research suggests.
In 2014, the scientific community buzzed about the possibility of a supersized El Niño as warm Pacific Ocean water sloshed eastward. That July, however, large winds pushed westward and halted the budding El Niño before it fully formed (SN: 11/1/14, p. 6). Those same winds also prevented the release of stored-up ocean heat, researchers report in a paper to be published in Geophysical Research Letters. In March 2015, that lingering heat gave the current El Niño a jump start toward the extreme, the researchers propose. The ongoing El Niño is among the three strongest on record (SN Online: 7/16/15); it has boosted rainfall in California, contributed to ocean coral bleaching and helped make 2015 the hottest year on record (SN: 2/20/16, p. 13). Such a once-in-a-generation El Niño would have been less likely without the failed 2014 event, says study coauthor Michael McPhaden, a physical oceanographer at the National Oceanic and Atmospheric Administration’s Pacific Marine Environmental Laboratory in Seattle.
“In a sense, we dodged a bullet in 2014 by not having a monster El Niño,” McPhaden says. “But that was short-lived, because the conditions that shut that developing El Niño down set up the big one in 2015.”
El Niños typically form every two to seven years when Pacific winds shift a large, near-surface pool of warm water eastward. That warm water then rises to the surface and releases its heat into the atmosphere, causing global shifts in storms, precipitation and temperatures.
The fizzled 2014 El Niño followed by a colossal event in 2015 is very unusual, McPhaden says. He and climate scientist Aaron Levine, also at NOAA’s Pacific Marine Environmental Laboratory, wondered if the sequence of events was just a coincidence. So the researchers looked at decades of El Niño climate data and ran computer simulations of various hypothetical El Niño events.
Under typical ocean conditions, the chances of a 2015 El Niño of any strength are about 27 percent, the researchers estimate. The remnant heat from the failed 2014 El Niño increased those odds to roughly 40 percent. Having a failed El Niño the previous year stacks the deck in favor of an El Niño, McPhaden and Levin conclude. But it “isn’t a guarantee,” Levine says. A similar aborted El Niño occurred in 1990, the researchers find. An El Niño formed the following year, but the event ended up being more modest than the current super El Niño. That’s in part because the eastward-blowing winds in 1991 were relatively weak, Levine says. Strong El Niños require strong winds, not just warm water, he adds.
Forecasting those winds is tricky because the winds and the warm water “are all part of the same system,” says Kevin Trenberth, a climate scientist at the National Center for Atmospheric Research in Boulder, Colo. Ocean heat can cause atmospheric changes that can in turn influence the winds. The new work provides insights, he says, “but it is far from complete.”
