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Booby Traps and Destruction in Kherson, Ukraine After Russian Army Retreats

KHERSON REGION, Ukraine—The sight of fresh planks of wood on the roof of a destroyed house was like a small ray of sunshine sticking out among the wreckage of the village of Myrne.

“At the very start of the war, one [Ukrainian] soldier made a stupid TikTok video on the streets outside our house,” Tatiana, a middle-aged local resident, told The Daily Beast. She picked up her phone to show a video of a grinning young man in military uniform, boasting of his unit’s success in pushing the Russians back.

Almost immediately after that, Russian artillery had fired on her property, thinking that the Ukrainian soldiers had sheltered inside it.

Ukraine’s operational security is much tighter now, but Tatiana’s anger is still palpable. For six months, this village had been on the Ukrainian front line of the war for the Kherson region, which Russian forces had seized in the opening weeks of the invasion. Tatiana had stayed behind under bombardment with only her dog for company. The poor animal’s fur was ragged—it was shell-shocked and barked its head off at anyone who took a step towards it.

Life in Kherson is nowhere near normal yet. Not only are residents still in danger of Russian shelling, but the fields are littered with mines, discarded and unexploded munitions, and booby traps set up by retreating Russian troops.

Tatiana and her dog outside her damaged house.

Courtesy of Tom Mutch

When driving back from Snihurivka, another former frontline village, we passed a Ukrainian tank lying on its side in a roadside ditch. It had been wrecked less than 15 minutes before by a grenade detonation. Its tracks had fallen off, its chassis was cracked, and it was leaking fuel. Its crew were sitting on top of the carcass, nervous and shaking but miraculously uninjured.

Anthony Connell, a mine clearance expert at the Swiss de-mining company FSD, predicted it would take “decades of peace” for the Ukrainians to clear the country of explosive remnants. He has worked in the Donbas region since 2016, which was one of the most mine contaminated regions in the world—even then.

Now, the damage to the whole country is indescribably worse. Even in the regions of Kyiv and Chernihiv, where battles raged for just over a month, many areas are too dangerous to walk through. Connell estimated dozens of civilians had been killed by explosives in those regions since they were liberated in April.

Adding to the troubles of civilians like Tatiana is the dire economic crisis triggered by the war. Tatiana’s brother-in-law, who did not want to be named, said that the local authorities had promised financial assistance, but that nothing had so far materialized.

“When can we get back to living here? It’s all about money. And we have very little,” he told The Daily Beast. They will be rebuilding as much as they can before the worst of the cold weather hits. Then they plan to stay with extended family in the Mykolaiv region before returning to their village in springtime.

This is the start of what will likely be the hardest winter in Ukraine’s recent history, as civilians struggle with widespread shortages of heat and water after a series of Russian missile strikes crippled the country’s power infrastructure.

Tatiana’s relatives drinking tea on a break from work.

Courtesy of Tom Mutch

As with a great many of the privations during the war, Ukrainians are adapting the best they can. Walking the streets of any major city, you can hear the whir of diesel generators being imported in their thousands to power local homes and businesses.

Local authorities and civil society organizations have set up thousands of “invincibility stations” in schools, public buildings, and railway stations across Ukraine. These are tents with heaters, electricity stations to charge devices, and provisions of tea, coffee, and sandwiches. But these can be little more than a Band-Aid over what has become the most difficult period since the full-scale invasion began in February.

When The Daily Beast visited the Kherson region last Thursday, lines of cars were streaming from the entrance to Kherson city, as hundreds fled renewed shelling by the Russian army, now entrenched over the Dnipro River just 1 mile or so away.

It is a far cry from the jubilation of the previous week, where a triumphant President Volodymyr Zelensky entered the main city square, which was full of joyful citizens singing patriotic songs and waving Ukrainian flags.

Since then, at least 32 civilians have been killed by Russian attacks, the highest of any region in the country. The city has been entirely without power, and local authorities have insisted that anyone with the ability to evacuate for the winter should do so.

The devastated main road in the village of Myrne.

Courtesy of Tom Mutch

What is happening in Kherson is a microcosm of the state of Ukraine as a whole.

There is a sad irony because on the military front, Ukraine’s armed forces are performing better than even the most optimistic predictions made before the war. The Ukrainians recently undertook two well-executed and successful counteroffensives in the Kharkiv and Kherson regions, allowing them to liberate swathes of territory, including the only regional capital the Russians had captured.

Meanwhile, the Russians have been unable to accomplish even their most pared-down war objectives. In the Donetsk region, the Russian army and Wagner mercenary group have been relentlessly assaulting the small city of Bakhmut, making incremental territorial gains at the cost of high casualties.

A cat scavenges in a Russian trench.

Courtesy of Tom Mutch

About a five-minute drive down the road from Tatiana’s place are the remains of Russian trenches, full of abandoned weaponry and ammunition covered in rubbish. Crawling through the wreckage and scavenging for food was a ginger tabby cat with bright green eyes, which jumped in our vehicle and refused to leave. We ended up taking him with us to Kyiv.

Back in the capital, Anna Kudriashova, a well-known singer, said she expected to see out the winter in her home no matter what happened. “I am with my family,” she told The Daily Beast, “and this is the most important and warming thing for me.”

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Turkey coal mine explosion kills 40, traps dozens



CNN
 — 

An explosion inside a coal mine in northern Turkey has killed at least 40 people and left 11 others hospitalized, state news media reported on Saturday.

The explosion took place in the Black Sea town of Amasra in Bartin province on Friday, trapping dozens beneath the rubble of the blast.

Eleven wounded workers were treated in hospitals, state news agency Anadolu said citing a statement from the country’s Interior Minister Suleyman Soylu.

Turkey’s Minister of Energy and Natural Resources Fatih Donmez said that a fire that broke out after the blast is largely under control, Anadolu reported.

Rescuers are working through the night as the death toll rises, with video footage from the scene showing miners emerging blackened and bleary-eyed.

There were 110 people in the mine at the time of the explosion, said Interior Minister Suleyman Soylu, who traveled to Amasra to coordinate the search and rescue operation.

Officials have not yet determined the cause of the explosion.

“We are doing our best to ensure that the injured recover as soon as possible,” Koca told reporters.

“I wish God’s mercy on each of them.”

Turkey witnessed its deadliest ever coal mining disaster in 2014, when 301 people died after a blast in the western town of Soma.

The disaster fueled public anger and discontent towards the government’s response to the tragedy.

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China Covid: Sanya lockdown traps thousands of holidaymakers

Since the weekend, however, what began as a leisurely escape has become a stress-filled travel nightmare for tens of thousands of holidaymakers, who are trapped in a sudden lockdown imposed by authorities to curb a spiraling Covid outbreak.

Driven by a highly infectious Omicron subvariant — which authorities blame on contact with overseas seafood dealers at a fishing port — the outbreak has infected more than 1,200 people in Sanya since August 1. It has also spread to a dozen other cities and counties in Hainan, infecting more than 200 others.

That is a major outbreak by the standards of China’s zero-Covid policy, which aims to swiftly snuff out local flareups with snap lockdowns, mass testing, extensive contact tracing and quarantine.

On Saturday, the Sanya government hastily locked down the city of a million people, including some 80,000 tourists. Visitors wishing to leave must show five negative Covid tests taken over seven days, and authorities did not specify when the measures would be lifted.

Public transportation was suspended, people’s movements inside the city were restricted to emergency services, and transport links were halted.

More than 80% of flights leaving Sanya were canceled on Saturday, according to data from flight tracking company Variflight. All trains departing from the city were also canceled, state broadcaster CCTV said Saturday.

The mass, sudden flight cancellations led to scenes of chaos at the airport on Saturday, when some passengers who had already boarded were ordered to deplane, according to state media reports.

A video widely circulated on Chinese social media shows a local official trying in vain to placate dozens of frustrated travelers outside the airport police station.

Speaking into a megaphone, the official promised the government would provide free food and hotel accommodation to travelers stranded at the airport, as a ring of police officers stood around him and pushed back the crowd.

“I want to go home! Go home! Go home!” the crowd chanted in response.

Forced stays

China’s borders have been closed to international tourists since the start of the pandemic, meaning tourist hotspots like Sanya rely even more on domestic travelers.

The Sanya government said Saturday that tourists with canceled flights could book discounted hotel rooms. But for some families, the forced week-long stay may still come at a heavy price — especially as the Chinese economy has been battered by zero-Covid.

On Sunday, state-run news website The Paper reported that a family of 13 from the southwestern city of Chengdu would need to spend about $26,600 for an extra week at their five-star hotel, including charges of more than $100 per person for lunch and dinner buffets.

The report caused a stir on Chinese social media, with a related hashtag attracting 270 million views on China’s microblogging site Weibo as of Monday afternoon. Many comments expressed sympathy toward the family, while others questioned why they didn’t move into a cheaper hotel. After the outcry, the family said they were able to access cheaper food options at the hotel.

Other social media posts by trapped tourists in Sanya accused some hotels of raising their prices to cash in on the forced stays. At a news conference Sunday, the Sanya government vowed to look into the complaints.

It said more than 3,200 tourists stuck at the airport on Saturday would be given seven days of accommodation and food. And about 5,000 workers had been sent to Hainan from other parts of the country to help with a mass Covid testing drive, officials added.

When will it end?

For many stranded tourists, the biggest concern is whether they will be allowed to leave after seven days. They fear the lockdown could be extended if the number of infections rises despite the restrictions.

Schools in China are due to reopen after the summer break in three weeks, and some companies may not allow employees to work remotely for weeks on end.

On Monday, Sanya airport canceled all of its 418 flights, according to flight-tracking site Variflight.

Among the tourists stuck were Shanghai residents who had gone to Hainan for summer holidays after enduring a grueling two-month lockdown in the Chinese financial hub earlier this year.

A foreign resident of Shanghai who arrived in Sanya on July 26 said he had to leave his hotel last Thursday because it was requisitioned by the local government as a quarantine facility. The hotel only gave him a day’s notice and left him to figure out alternative accommodation, he said.

Over the past five days, he has waited in long lines for six Covid tests, he said.

“This situation going forward is unsustainable,” said the tourist, who requested not to be named over fears of a nationalistic blowback. “It’s a little bit like Russian roulette on where you go, and whether or not that area is gonna get locked down.”

For many travelers mindful of the country’s Covid restrictions, Hainan had been considered a safe place because in the past it has reported very few cases.

Other tourist hotspots have recently been struck by abrupt lockdown too. Last month, more than 2,000 tourists were trapped in the resort town of Beihai in southern China, after a lockdown was imposed over 500 infections.

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Haiti gang violence traps thousands in Cité Soleil

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PORT-AU-PRINCE, Haiti — While the gangs clash outside, Florient Clebert, his four sons and a daughter have been trapped inside their home for days. They’ve seen several neighbors killed. His brother was shot in the head last week and could not be treated in a hospital.

Now the family is running out of food. Clebert, 39, an out-of-work substitute teacher, has been unable to get to the bank to withdraw money. Government forces, meanwhile, seem to be doing nothing.

“We are the masses, and we are abandoned,” he told The Washington Post on Thursday, his voice trembling as gunfire rang out in the background.

Scores of people are dead amid days of violent clashes between warring gangs in Cité Soleil, the Haitian capital’s largest slum, and thousands more have been trapped without food or water, exacerbating the spiraling insecurity and humanitarian crises in this beleaguered Caribbean nation.

The United Nations said that at least 99 people have been killed and more than 130 wounded since the current round of violence erupted last week.

Jöel Janéus, the mayor of Cité Soleil, said the gangs have burned most of the bodies, and many families have few answers about the whereabouts of their loved ones.

Prime Minister Ariel Henry’s office and the interior ministry have been in touch with local officials, Janéus told The Post, but have taken little action to end the bloodshed. He said he spent his own money on food and water for residents because the mayor’s office has no money.

Janéus said he was in hiding. “I’m receiving a lot of pressure and threats,” he said.

The carnage in Cité Soleil, a community of more than 260,000 people on the Port-au-Prince Bay, is part of a surge of violence and kidnappings for ransom by armed gangs amid worsening political instability following the still-unsolved assassination a year ago of President Jovenel Moïse.

Haiti’s gangs use TikTok, Instagram, Twitter to recruit and terrorize

The United Nations said this week that 1.5 million people in Port-au-Prince are trapped, “deprived of basic services and their freedom of movement,” by the gang violence. The U.N. Security Council voted Friday to extend its political mission in Haiti for another year.

The violence in Cité Soleil erupted last week between warring coalitions of gangs: G-Pèp and the G-9, a federation of nine gangs led by Jimmy Chérizier. The United States has imposed sanctions on Chérizier, a former police officer who goes by the nickname Barbecue, for allegedly leading armed groups in “coordinated, brutal attacks in Port-au-Prince neighborhoods.”

In a video shared on social media this week, Chérizier held a long gun and proclaimed, “The fight to liberate the country is launched against kidnappers and robbers.”

Haiti’s National Human Rights Defense Network said that more than a dozen people have been disappeared in Cité Soleil and that more than 120 homes have been destroyed by arson or by heavy machinery that it alleged the National Equipment Center provided the G-9.

Kington Louis, director general of the National Equipment Center, told The Post that the allegations are false. He said one of the center’s loaders was hijacked by the gangs who assassinated the driver when he refused to do what they demanded.

In Haiti, coronavirus and a man named Barbecue test the rule of law

Doctors Without Borders called on the gangs to spare civilians. The organization said the needs for food, water and medical aid are acute in Brooklyn, an isolated neighborhood of Cité Soleil that residents have been unable to leave since July 8.

“Along the only road into Brooklyn, we have encountered corpses that are decomposing or being burned,” Mumuza Muhindo, the group’s head of mission in Haiti, said in a statement. “They could be people killed during the clashes or trying to leave who were shot. It is a real battlefield.”

A fuel terminal near Cité Soleil temporarily suspended deliveries this week, exacerbating nationwide fuel shortages and spurring protests that blocked main roads across the capital. Fuel deliveries resumed Thursday.

Janéus, the mayor, has been personally affected by spiraling insecurity. In November, armed bandits descended on his home in Croix-des-Bouquets, a neighborhood east of Port-au-Prince that’s a stronghold of the notorious 400 Mawozo gang, and kidnapped his wife.

Abductions by the busload: Haitians are being held hostage by a surge in kidnappings

Friends, family and residents of Cité Soleil pitched in to help him collect the $40,000 ransom the gang demanded. Janéus said he negotiated with Germine “Yonyon” Joly, the leader of 400 Mawozo, who ran the gang’s operations from a Port-au-Prince prison by cellphone.

Joly was transferred to the United States in May to face charges over his alleged roles in a criminal conspiracy to violate U.S. export laws by smuggling firearms to Haiti and a conspiracy to commit hostage-taking in the kidnapping last year of 17 missionaries with an Ohio-based charity in Port-au-Prince.

“My three kids are now in the U.S.,” Janéus said, “but my wife is with me in Haiti. Although she’s seeing a psychologist, she is still unstable since the kidnapping.”

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Hong Kong fire traps 150 people on roof of 39-storey building

HONG KONG, Dec 15 (Reuters) – About 150 people were trapped on the roof of Hong Kong’s World Trade Centre on Wednesday after a fire broke out in the building located in the bustling Causeway Bay commercial and shopping district, police said.

Police told Reuters 13 people were taken to hospital, one of them semi-conscious. City authorities said firefighters were battling the blaze with two high-powered hoses, using ladders and breathing apparatus in the effort to rescue those trapped.

Shoppers and office workers streamed out of the building

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as smoke billowed from it. Police halted traffic on some major roads next to the 39-floor World Trade Centre, which is home to restaurants, offices and shops.

About 100 people moved from a restaurant to the top 39th floor when the fire broke out and smoke filled the dining area, broadcaster RTHK quoted police as saying.

Media said the fire broke out in a utility room on a lower level of the shopping mall at noon before spreading to bamboo scaffolding surrounding the block.

The cause of the fire was not immediately clear.

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Reporting by Sonia Cheema, Edmond Ng and Anne Marie Roantree; Editing by Edmund Klamann and Clarence Fernandez

Our Standards: The Thomson Reuters Trust Principles.

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Chewing Gum Developed That Could Reduce COVID Transmission – Laced With Protein That “Traps” the SARS-CoV-2 Virus

A chewing gum laced with a plant-grown protein serves as a “trap” for the

In a measure of viral load using microbubbles, the chewing gum infused with the ACE2 protein triggered a reduction in the amount of virus in samples taken from COVID-19 patients. Credit: Courtesy of the researchers

Prior to the pandemic, Daniell had been studying the angiotensin-converting enzyme 2 (ACE2) protein in the context of treating hypertension. His lab had grown this protein, as well as many others that may have therapeutic potential, using a patented plant-based production system. By bombarding plant material with the

Penn Dental Medicine’s Henry Daniell and colleagues used a plant-based protein drug production platform to grow the ACE2 protein, which was then infused in chewing gum. By either blocking the ACE2 receptor or binding to the SARS-CoV-2 spike protein, the ACE2 in the gum appears to be able to reduce viral entry into cells. Credit: Courtesy of the researchers

“Henry contacted me and asked if we had samples to test his approach, what kind of samples would be appropriate to test, and whether we could internally validate the level of SARS-CoV-2 virus in the saliva samples,” Collman says. “That led to a cross-school collaboration building on our microbiome studies.”

To test the chewing gum, the team grew ACE2 in plants, paired with another compound that enables the protein to cross mucosal barriers and facilitates binding, and incorporated the resulting plant material into cinnamon-flavored gum tablets. Incubating samples obtained from nasopharyngeal swabs from COVID-positive patients with the gum, they showed that the ACE2 present could neutralize SARS-CoV-2 viruses.

Those initial investigations were followed by others at The Wistar Institute and Penn Vet, in which viruses, less-pathogenic than SARS-CoV-2, were modified to express the SARS-CoV-2 spike protein. The scientists observed that the gum largely prevented the viruses or viral particles from entering cells, either by blocking the ACE2 receptor on the cells or by binding directly to the spike protein.

Henry Daniell Credit: Penn Dental Medicine

Finally, the team exposed saliva samples from COVID-19 patients to the ACE2 gum and found that levels of viral (function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "https://connect.facebook.net/en_US/sdk.js#xfbml=1&version=v2.6"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));

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‘Wonderwall’ of snow traps drinkers, and Oasis tribute band, in remote U.K. pub

Is three days in a pub with an Oasis tribute band too long? Definitely Maybe.

Some 50 drinkers stranded in a remote 17th-century pub for three nights after heavy snowfall in northern England while they watched an Oasis tribute band would be forgiven for wondering just that.

They slept on couches or on the floor at The Tan Hill Inn in Yorkshire, England — more than 200 miles north of London — after snow and fallen power lines blocked nearby roads starting Friday.

Guests were forced to sleep on makeshift beds after being stranded at The Tan Hill Inn following heavy snowfall.Facebook/The Tan Hill Inn

The pub — known as Britain’s highest inn, which sits at 1,732 feet above sea level — shared updates on Facebook, jokingly calling guests “inmates.”

“Let’s be honest,” one update said. “Being stuck anywhere is a trial, a challenge to the mental health of some people, and yes, some are at breaking point after three days of being confined.”

Vicky Hodgson, 43, traveled over an hour to the rural pub with her partner in their campervan to watch “Noasis,” the Oasis tribute band.

The forecast predicted light snowfall, so they weren’t concerned about the weather. But by the end of the night, the pub’s entrance was covered by thick snow.

“It was unreal, the snow must have been about waist-deep,” Hodgson told NBC News over the phone. “I’ve never seen anything like it.”

She said it had been “a wild ride of emotions” but a weekend full of “memories.”

Hodgson said staff had been “absolutely brilliant” and kept guests entertained with quizzes, karaoke, and plenty of food — including a free buffet.

Stranded staff and guests dug a path out of the pub which had been blocked by thick snow.Vicky Hodgson

The wintry weather brought heavy snow to many parts of the United Kingdom over the weekend. It left tens of thousands of homes without electricity and killed at least two people.

“Our guests have been absolutely amazing,” Nicola Townsend, the pub’s manager, told Sky News. “They’ve been really patient and really understanding.”

“Everyone came as strangers on Friday night and I think I speak on behalf of everyone when I say they have made friends here,” Townsend added.

At 2:16 p.m. local time (9:16 a.m. ET) Monday The Tan Hill Inn shared on Facebook that it had “given a fond farewell to our previously stranded guests” after the roads finally opened.

A photo of stranded patrons was shared on The Tan Hill Inn’s Facebook page, along with the caption: “We will ALWAYS remember this group of amazing people who came together, and hopefully, in challenging circumstances, enjoyed what we all think was a life-changing experience.”

Band members of “Noasis” who describe themselves as the “nation’s favorite Oasis tribute band” — wrote on Facebook that they had to cancel another performance on Saturday night because they were also trapped. 

“We have no way of making it to our gig,” the band said.

Hodgson, who managed to leave the pub on Monday, said the “surreal” experience left her with some new, life-long friends.

“There’s talk of a reunion next year! Hopefully in the summer though,” she said, laughing.

Bianca Britton reported from London, and Suzanne Ciechalski reported from New York.

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Experimental Chewing Gum That Traps Virus Particles Could Help Fight COVID-19

An experimental chewing gum could reduce the spread of SARS-CoV-2, the virus that causes COVID-19, according to a recent study published in the journal Molecular Therapy.

You might already have noticed headlines calling the findings “fresh hope” in our fight against COVID-19. But how excited should we be? And would this gum work against omicron, the newest variant of concern?

 

Evidence shows people infected with SARS-CoV-2 have high levels of virus in their saliva. So researchers in the US wanted to investigate whether a specially designed chewing gum could reduce the amount of virus in the mouth, and therefore potentially reduce its spread.

Chewing gum to promote oral health is not a new idea. Studies have shown that chewing gums containing certain substances such as calcium and bicarbonate can improve oral health, reducing the incidence of dental ailments and cutting the numbers of harmful bacteria.

But specifically targeting a virus in this way is a novel approach.

SARS-CoV-2 gains entry into human cells by latching onto ACE2 proteins, which are found on the surfaces of certain cells in our body.

The researchers produced a gum containing high levels of ACE2 proteins, produced in plants, with the idea being that the ACE2 proteins in the chewing gum could “trap” virus particles in the mouth, minimizing the opportunity they have to infect our cells and spread to other people.

To test the effectiveness of the chewing gum, the researchers took saliva samples from patients with COVID-19 and mixed these samples with a powdered form of the gum. They found the treated saliva had significantly reduced numbers of SARS-CoV-2 virus particles compared to those treated with a placebo (the same gum but without the ACE2 protein).

 

The researchers also demonstrated that the gum prevented a pseudotyped virus (a harmless virus with the SARS-CoV-2 spike protein on its surface) from infecting cells in the lab. As little as 5mg of the gum was associated with significantly reduced viral entry into cells, while 50mg of the gum reduced viral entry by 95 percent.

This suggests the ACE2 gum severely hinders the ability of the SARS-CoV-2 spike protein to infect cells.

Reasons for caution

Although these results seem promising, there are a number of reasons we can’t view this gum as a pandemic gamechanger just yet. First, this is early-stage research, meaning the experiments were conducted in a lab in controlled conditions rather than with real people.

The conditions in a lab experiment are going to be different to the conditions in a person’s mouth. While the researchers used a chewing simulator machine to show that the motion of chewing doesn’t affect the integrity of the ACE2 protein in the gum, there are other questions for which we don’t yet have answers.

For example, would the environment in a person’s mouth, such as body temperature and oral bacteria, impact the effectiveness of the gum? And how long would one piece of gum continue working for? It will be interesting to see whether the gum produces similar effects in people as it has in the lab if the research progresses to this stage.

 

Second, although the gum significantly reduced infection of a virus that carried the SARS-CoV-2 spike, the researchers didn’t use the full SARS-CoV-2 virus in their experiments.

While the method they used, virus pseudotyping, is a tried and tested scientific method to assess virus entry into cells, it would be interesting to see how the gum affects the full SARS-CoV-2 virus.

As for whether the gum would be effective across different COVID variants, such as omicron, the principles of virology give us reason to be optimistic.

Regardless of the variant and its mutations, SARS-CoV-2 gains entry into human cells by latching on to ACE2 proteins – which is key to how the gum works. That said, this is another question we won’t know the answer to for sure until the product is tested in real-world trials.

Finally, it’s important to understand what this gum is designed for. The researchers point out that its main use is likely to be reducing viral spread from people with COVID-19 to others, particularly in clinical settings.

It’s unclear how well it would work as a prophylactic to prevent uninfected people getting the virus, particularly when SARS-CoV-2 can be transmitted through multiple routes including the eyes and nose as well as the mouth.

All the same, this gum could have exciting prospects in a clinical setting – for example reducing spread in dental surgeries or COVID hospital wards. When used in combination with current methods such as mask wearing, ventilation and vaccination, it could be another weapon in our arsenal for preventing the spread of COVID-19.

But further research is needed before we can expect to be chewing it.

Grace C Roberts, Research Fellow in Virology, University of Leeds.

This article is republished from The Conversation under a Creative Commons license. Read the original article.

 

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The moon has carbon dioxide “traps” that astronauts could use to make fuel and grow plants

Though the moon was long considered a barren, inhospitable rocky world, researchers over the past few decades have found that the moon has many of the amenities that humans would need to build a self-sufficient habitat. Indeed, recent discoveries of plentiful water ice pockets on the moon tantalized scientists and space agencies. Now, a new finding suggests that there is plentiful carbon dioxide on the moon as well. 

According to new research published in the AGU journal Geophysical Research Letter, scientists have confirmed the existence of lunar carbon dioxide “cold traps,” a geological anomaly in which carbon dioxide could collect for long periods and settle. This discovery will likely have a significant impact on future space exploration as humans — or robots — could use carbon dioxide or other organic materials in the cold traps as fuel, convert it to oxygen, or use it in lunar greenhouses for growing plants. 

In astronomy, a cold trap refers to a pocket on the surface of a solid body in which volatile gases can accrue and remain still for long periods, often millions of years. Because many planets and bodies in the solar system, the moon included, lack a significant atmosphere, any unlit area can remain at frigid temperatures for thousands or even millions of years. In that span, gases like carbon dioxide can accumulate and sometimes freeze in sufficient quantities, hence the term “cold trap.” Carbon dioxide freezes at -109° Fahrenheit or -78° Celsius; the temperature on the Moon in the shade or at night is cooler than that, around -298° F (or -183° C) or even colder in some regions.

While the presence of carbon dioxide in these cold traps is confirmed, scientists are unclear as to whether the molecules are solid or gaseous. But the presence of the cold traps is telling, as carbon dioxide molecules are apt to freeze and remain in solid form even during high temperatures in the lunar summer.

The discovery comes amid decades of uncertainty and speculation in the scientific community around cold traps on the Moon.

“I think when I started this, the question was, ‘Can we confidently say there are carbon dioxide cold traps on the Moon or not?'” said Norbert Schörghofer, a planetary scientist at the Planetary Science Institute and lead author on the study. “My surprise was that they’re actually, definitely there. It could have been that we can’t establish their existence, [they might have been] one pixel on a map… so I think the surprise was that we really found contiguous regions which are cold enough, beyond doubt.”


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The new report shows that there are several cold trap pockets scattered around the Moon’s south pole, in an area that totals 204 square kilometers. These carbon dioxide traps appear to be most concentrated in an area called the Amundsen Crater, which appears to host 82 square kilometers of cold traps. In these areas, temperatures remain at negative 352 degrees Fahrenheit.

“These should be high-priority sites to target for future landed missions,” said Paul Hayne, a planetary scientist at the University of Colorado, Boulder who was not involved in the study. “This sort of pinpoints where you might go on the lunar surface to answer some of these big questions about volatiles on the Moon and their delivery from elsewhere in the solar system.”

Such cold traps are useful to engineers in a number of ways. If there is solid carbon dioxide in these cold traps, it could help with the production of fuel, steel and other biomaterials on the Moon. Nation-states like China and Russia are already planning to build a research station on the Moon, and taking advantage of the resources in these cold traps could be key to self-sufficiency.

Studying carbon dioxide on the moon could also help scientists better understand the origin of water on the Moon. In 2020, ​​a pair of studies published in the journal Nature Astronomy confirmed that there is a large amount of water on the Moon’s sunlit regions.

“We had indications that H₂O – the familiar water we know – might be present on the sunlit side of the Moon,” Paul Hertz, director of the Astrophysics Division in the Science Mission Directorate at NASA Headquarters in Washington, previously said in a statement. “Now we know it is there. This discovery challenges our understanding of the lunar surface and raises intriguing questions about resources relevant for deep space exploration.”

NASA used the Stratospheric Observatory for Infrared Astronomy (SOFIA), an infrared observatory mounted on a Boeing 747 airplane, to take air observations from the air and confirm the presence of water on the Moon’s southern polar region. One study estimated this region could hold nearly 40,000 square kilometers of lunar surface with water ice.

The presence of water ice caught NASA’s attention. In 2019, the space agency announced it was planning to send American astronauts to the surface of the Moon within five years, setting their sights on the southern pole.

“We know the South Pole region contains ice and may be rich in other resources based on our observations from orbit, but, otherwise, it’s a completely unexplored world,” said Steven Clarke, deputy associate administrator of the Science Mission Directorate at NASA Headquarters in Washington. “The South Pole is far from the Apollo landing sites clustered around the equator, so it will offer us a new challenge and a new environment to explore as we build our capabilities to travel farther into space.”

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Carbon dioxide cold traps on the moon are confirmed for the first time

A view of the lunar south pole, where newly confirmed carbon dioxide cold traps are located, according to new research in Geophysical Research Letters. Future missions on the Moon may target this region to find out more about the resources that may exist there. Credit: NASA/GSFC/Arizona State University

After decades of uncertainty, researchers have confirmed the existence of lunar carbon dioxide cold traps that could potentially contain solid carbon dioxide. The discovery will likely have a major influence in shaping future lunar missions and could impact the feasibility of a sustained robot or human presence on the moon.

In the permanently shadowed regions at the poles of our moon, temperatures dip below those in the coldest areas of Pluto, allowing for carbon dioxide cold traps. In these cold traps, carbon dioxide molecules could freeze and remain in solid form even during peak temperatures in the lunar summer.

Future human or robot explorers could use the solid carbon dioxide in these cold traps to produce fuel or materials for longer lunar stays. The carbon dioxide and other potential volatile organics could also help scientists better understand the origin of water and other elements on the moon.

Although cold traps have been predicted by planetary scientists for years, this new study is the first to firmly establish and map the presence of carbon dioxide cold traps. To find the coldest spots on the moon’s surface, researchers analyzed 11 years of temperature data from the Diviner Lunar Radiometer Experiment, an instrument flying aboard NASA’s Lunar Reconnaissance Orbiter.

The new research, published in the AGU journal Geophysical Research Letters, which publishes high-impact, short-format reports with immediate implications spanning all Earth and space sciences, shows that these cold traps include several pockets concentrated around the lunar southern pole. The total area of these carbon dioxide traps totals 204 square kilometers, with the largest area in the Amundsen Crater hosting 82 square kilometers of traps. In these areas, temperatures continually remain below 60 degrees Kelvin (about minus 352 degrees Fahrenheit).

The existence of carbon dioxide cold traps does not guarantee the existence of solid carbon dioxide on the moon, but this verification does make it highly likely that future missions could find carbon dioxide ice there, according to the researchers.  

“I think when I started this, the question was, ‘Can we confidently say there are carbon dioxide cold traps on the moon or not?'” said Norbert Schörghofer, a planetary scientist at the Planetary Science Institute and lead author on the study. “My surprise was that they’re actually, definitely there. It could have been that we can’t establish their existence, [they might have been] one pixel on a map… so I think the surprise was that we really found contiguous regions which are cold enough, beyond doubt.”

A map of carbon dioxide cold traps on the Moon, with likely cold traps marked in purple hues. In these regions, temperatures dip below even the coldest temperatures measured on Pluto. Credit: AGU/Geophysical Research Letters

Managing the moon

The existence of carbon dioxide traps on the moon will likely have implications for the planning of future lunar exploration and international policy regarding the resource.

If there is indeed solid carbon dioxide in these cold traps, it could potentially be used in a variety of ways. Future space explorers could use the resource in the production of steel as well as rocket fuel and biomaterials, which would both be essential for sustained robot or human presence on the moon. This potential has already attracted interest from governments and private companies.

Scientists could also study lunar carbon to understand how organic compounds form and what kind of molecules can be naturally produced in these harsh environments. 

The carbon dioxide cold traps could additionally help scientists answer long-standing questions about the origins of water and other volatiles in the Earth-moon system, according to Paul Hayne, a planetary scientist at the University of Colorado, Boulder who was not involved in the study.

Carbon dioxide could be a tracer for the sources of water and other volatiles on the lunar surface, helping scientists to understand how they arrived on the moon and on Earth.

“These should be high-priority sites to target for future landed missions,” Hayne said. “This sort of pinpoints where you might go on the lunar surface to answer some of these big questions about volatiles on the moon and their delivery from elsewhere in the solar system.”


Research sheds light on the moon’s dark craters


More information:
Norbert Schorghofer et al, Carbon Dioxide Cold Traps on the Moon, Geophysical Research Letters (2021). DOI: 10.1029/2021GL095533
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American Geophysical Union

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Carbon dioxide cold traps on the moon are confirmed for the first time (2021, November 15)
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