Tag Archives: exposed

Holes exposed in Ukraine air defence, as Lavrov slams NATO – Euronews

  1. Holes exposed in Ukraine air defence, as Lavrov slams NATO Euronews
  2. Ukrainian special ops forces who stormed a Russian trench in an intense video did ‘everything right’ and took their enemy by surprise, US infantry veteran says Yahoo Sports
  3. Azerbaijani Defense Ministry Says Its Positions Came Under Small Arms Fire In Border Area Radio Free Europe / Radio Liberty
  4. Ukrainian artillerymen praise US howitzers outside Russian-held town Reuters
  5. ISW explains how Ukrainian forces could use delayed counteroffensive Yahoo News
  6. View Full Coverage on Google News

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Kendall Jenner, Bad Bunny and when your maybe-kind-of-sort-of secret romance gets exposed – USA TODAY

  1. Kendall Jenner, Bad Bunny and when your maybe-kind-of-sort-of secret romance gets exposed USA TODAY
  2. Bad Bunny & Devin Booker Should Have Better Things To Do Than Fight About Kendall Jenner Jezebel
  3. Bad Bunny Appears to Diss Kendall Jenner’s Ex Devin Booker in New Song | E! News E! News
  4. Devin Booker seems to agree: Bad Bunny really is dissing him in his new song ‘Coco Chanel’ The Arizona Republic
  5. Bad Bunny Seemingly Disses Kendall Jenner’s Ex Devin Booker on New Song ‘Coco Chanel’: ‘Hotter Than in Phoenix’ Us Weekly
  6. View Full Coverage on Google News

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Shania Twain reveals ex-husband is still with her former BFF 15 years after affair was exposed – Daily Mail

  1. Shania Twain reveals ex-husband is still with her former BFF 15 years after affair was exposed Daily Mail
  2. Shania Twain Opens Up About Intense Emotional State After Her Divorce PEOPLE
  3. Shania Twain Shares Update On Ex And Former BFF: ‘Everyone Gets What They Deserve’ HuffPost
  4. Shania Twain reveals whether ex Robert ‘Mutt’ Lange is still with her former BFF Page Six
  5. Shania Twain Recalls Being ‘Uncontrollably Fragile’ Over Ex Robert ‘Mutt’ Lange’s Affair, ‘Never’ Stayed in Touch With Marie-Anne Thiebaud Us Weekly
  6. View Full Coverage on Google News

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Infants Exposed to Excessive Screen Time Show Differences in Brain Function Beyond Eight Years of Age

Summary: Greater exposure to screen time during infancy was linked to poor self-regulation and brain immaturity at age eight.

Source: Agency for Science, Technology, and Research

More children are now exposed to mobile digital devices at a young age as an avenue for entertainment and distraction.

A longitudinal cohort study in Singapore has confirmed that excessive screen time during infancy is linked to detrimental outcomes in cognitive functions, which continue to be apparent after eight years of age.

The research team looked at data from 506 children who enrolled in the Growing Up in Singapore towards Healthy Outcomes (GUSTO) cohort study since birth.

When the children were 12 months of age, parents were asked to report the average amount of screen time consumed on weekdays and weekends each week. Children were then classified into four groups based on screen time per day – less than one hour, one to two hours, two to four hours and more than four hours. At 18 months of age, brain activity was also collected using electroencephalography (EEG), a highly sensitive tool which tracks changes in brain activity.

Besides undergoing EEG, each child participated in various cognitive ability tests that measured his or her attention span and executive functioning (sometimes referred to as self-regulation skills) at the age of nine years.

The team first examined the association between screen time and EEG brain activity. The EEG readings revealed that infants who were exposed to longer screen time had greater “low-frequency” waves, a state that correlated with lack of cognitive alertness.

To find out whether screen time and the changes observed in the brain activity have any adverse outcomes during later childhood, the research team analysed all the data across three points for the same children – at 12 months, 18 months and nine years. As the duration of screen time increased, the greater the altered brain activity and more cognitive deficits were measured.

Children with executive function deficits often have difficulty controlling impulses or emotions, sustaining attention, following through multi-step instructions, and persisting in a hard task.

The brain of a child grows rapidly from the time of birth until early childhood. However, the part of the brain that controls executive functioning, or the prefrontal cortex, has a more protracted development.

Executive functions include the ability to sustain attention, process information and regulate emotional states, all of which are essential for learning and school performance. The advantage of this slower growth in the prefrontal cortex is that the imbuing and shaping of executive function skills can happen across the school years until higher education.

However, this same area of the brain responsible for executive functioning skills is also highly vulnerable to environmental influences over an extended period of time.

This study points to excessive screen time as one of the environmental influences that may interfere with executive function development. Prior research suggests that infants have trouble processing information on a two-dimensional screen.

When watching a screen, the infant is bombarded with a stream of fast-paced movements, ongoing blinking lights and scene changes, which require ample cognitive resources to make sense of and process. The brain becomes “overwhelmed” and is unable to leave adequate resources for itself to mature in cognitive skills such as executive functions.

Researchers are also concerned that families which allow very young children to have hours of screen time often face additional challenges. These include stressors such as food or housing insecurity, and parental mood problems. More work needs to be done to understand reasons behind excessive screen time in young children.

Further efforts are necessary to distinguish the direct association of infant screen use versus family factors that predispose early screen use on executive function impairments.

The study was a collaborative effort comprising researchers from the Yong Loo Lin School of Medicine, National University of Singapore (NUS Medicine), A*STAR’s Singapore Institute for Clinical Sciences (SICS), National Institute of Education, KK Women’s and Children’s Hospital, McGill University and Harvard Medical School. It was published in JAMA Pediatrics on 31 January 2023.

The team first examined the association between screen time and EEG brain activity. Image is in the public domain

Lead author, Dr Evelyn Law from NUS Medicine and SICS’s Translational Neuroscience Programme, said, “The study provides compelling evidence to existing studies that our children’s screen time needs to be closely monitored, particularly during early brain development.” Dr Law is also a Consultant in the Division of Development and Behavioural Paediatrics at the Khoo Teck Puat – National University Children’s Medical Institute, National University Hospital.

Professor Chong Yap Seng, Dean of NUS Medicine and Chief Clinical Officer, SICS, added, “These findings from the GUSTO study should not be taken lightly because they have an impact on the potential development of future generations and human capital.

“With these results, we are one step closer towards better understanding how environmental influences can affect the health and development of children. This would allow us to make more informed decisions in improving the health and potential of every Singaporean by giving every child the best start in life.”

Professor Michael Meaney, Programme Director of the Translational Neuroscience Programme at SICS said, “In a country like Singapore, where parents work long hours and kids are exposed to frequent screen viewing, it’s important to study and understand the impact of screen time on children’s developing brains.”

About this technology and brain development research news

Author: Sharmaine Loh
Source: Agency for Science, Technology and Research
Contact: Sharmaine Loh – Agency for Science, Technology and Research
Image: The image is in the public domain

Original Research: Open access.
“Associations Between Infant Screen Use, Electroencephalography Markers, and Cognitive Outcomes” by Evelyn Law et al. JAMA Pediatrics


Abstract

Associations Between Infant Screen Use, Electroencephalography Markers, and Cognitive Outcomes

Importance  

See also

Research evidence is mounting for the association between infant screen use and negative cognitive outcomes related to attention and executive functions. The nature, timing, and persistence of screen time exposure on neural functions are currently unknown. Electroencephalography (EEG) permits elucidation of the neural correlates associated with cognitive impairments.

Objective  

To examine the associations between infant screen time, EEG markers, and school-age cognitive outcomes using mediation analysis with structural equation modeling.

Design, Setting, and Participants  

This prospective maternal-child dyad cohort study included participants from the population-based study Growing Up in Singapore Toward Healthy Outcomes (GUSTO). Pregnant mothers were enrolled in their first trimester from June 2009 through December 2010. A subset of children who completed neurodevelopmental visits at ages 12 months and 9 years had EEG performed at age 18 months. Data were reported from 3 time points at ages 12 months, 18 months, and 9 years. Mediation analyses were used to investigate how neural correlates were involved in the paths from infant screen time to the latent construct of attention and executive functioning. Data for this study were collected from November 2010 to March 2020 and were analyzed between October 2021 and May 2022.

Exposures  

Parent-reported screen time at age 12 months.

Main Outcomes and Measures  

Power spectral density from EEG was collected at age 18 months. Child attention and executive functions were measured with teacher-reported questionnaires and objective laboratory-based tasks at age 9 years.

Results 

 In this sample of 437 children, the mean (SD) age at follow-up was 8.84 (0.07) years, and 227 children (51.9%) were male. The mean (SD) amount of daily screen time at age 12 months was 2.01 (1.86) hours. Screen time at age 12 months contributed to multiple 9-year attention and executive functioning measures (η2, 0.03-0.16; Cohen d, 0.35-0.87). A subset of 157 children had EEG performed at age 18 months; EEG relative theta power and theta/beta ratio at the frontocentral and parietal regions showed a graded correlation with 12-month screen use (r = 0.35-0.37). In the structural equation model accounting for household income, frontocentral and parietal theta/beta ratios partially mediated the association between infant screen time and executive functioning at school age (exposure-mediator β, 0.41; 95% CI, 0.22 to 0.59; mediator-outcome β, −0.38; 95% CI, −0.64 to −0.11), forming an indirect path that accounted for 39.4% of the association.

Conclusions and Relevance  

In this study, infant screen use was associated with altered cortical EEG activity before age 2 years; the identified EEG markers mediated the association between infant screen time and executive functions. Further efforts are urgently needed to distinguish the direct association of infant screen use compared with family factors that predispose early screen use on executive function impairments.

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Stanford Study Reveals Secrets to Sustainable Weight Loss: Behaviors and Biomarkers Exposed

Stanford Medicine researchers have discovered biomarkers that can predict an individual’s ability to lose weight and maintain weight loss long-term. These biomarkers include signatures from the gut microbiome, proteins made by the human body, and levels of exhaled carbon dioxide. The study found that the bacteria in the gut and the amounts of certain proteins the body produces can impact an individual’s ability to sustain weight loss. Additionally, the research found that some individuals lose more weight on low-fat diets while others have better results on low-carb diets.

A new analysis of data from a yearlong weight-loss study has identified behaviors and biomarkers that contribute to short- and long-term weight loss.

Strictly following a diet— either healthy low-carb or healthy low-fat — was what mattered for short-term weight loss during the first six months. But people who maintained long-term weight loss for a year ate the same number of calories as those who regained weight or who did not lose weight during the second six months.

So what explains this difference?

According to the study, the bacteria living in your gut and the amounts of certain proteins your body makes can affect your ability to sustain weight loss. And some people, it turns out, shed more pounds on low-fat diets while others did better on low-carb diets.

Stanford Medicine researchers have identified several biomarkers that predict how successful an individual will be at losing weight and keeping it off long-term. These biomarkers include signatures from the gut microbiome, proteins made by the human body, and levels of exhaled carbon dioxide. The researchers published their findings on December 13 in the journal

“Weight loss is enigmatic and complicated, but we can predict from the outset with microbiome and metabolic biomarkers who will lose the most weight and who will keep it off,” said Michael Snyder, PhD, professor and chair of genetics and co-senior author on the paper.

Willpower does not drive weight loss

The data came from 609 participants who logged everything they ate for a year while following either a low-fat or low-carb diet made up of mostly high-quality, minimally processed foods. The researchers tracked participant exercise, how well they followed their diet, and the number of calories consumed.

The study showed that just cutting calories or exercising were not enough to sustain weight loss over a year. To try and understand why, the team turned their focus to biomarkers of metabolism.

“We found specific microbiome ecologies and amounts of proteins and enzymes at the beginning of the study period — before people started following the diet — that indicated whether they would be successful at losing weight and keeping it off,” said Dalia Perelman, research dietician and co-lead author on the paper.

Throughout the study, the researchers measured the ratio of inhaled oxygen to exhaled carbon dioxide, known as a respiratory quotient, which serves as a proxy for whether carbohydrates or fats are the body’s primary fuel. A lower ratio means the body burns more fat, while a higher ratio means it burns more carbohydrates. So, those who started the diet with a higher respiratory quotient lost more weight on a low-carb diet.

“There are people who can be eating very few calories but still sustain their weight because of how their bodies metabolize fuels. It is not for lack of will: It is just how their bodies work,” Perelman said.

In other words, if your body prefers carbs and you’re predominately eating fat, it will be much harder to metabolize and burn off those calories.

“If you are following a diet that worked for someone you know and it is not working for you, it might be that that specific diet is not as suited for you,” added Xiao Li, PhD, co-lead author of the paper, a former postdoctoral fellow at Stanford Medicine who is now at Case Western University.

For now, focus on nutrients

The predictive information gleaned from the gut microbiome, proteomic analysis, and respiratory quotient signatures is laying the foundation for personalized diets. Snyder said he thinks tracking amounts of certain gut microbe strains will be a way for people to determine which diets are best for weight loss.

We’re not there yet, so until then, according to the researchers, the focus should be on eating high-quality foods that are unprocessed and low in refined flours and sugar.

The research team identified specific nutrients that were correlated with weight loss during the first six months. Low-carb diets should be based on monounsaturated fats — such as those that come from avocados, rather than bacon — and high in vitamins K, C, and E. These vitamins are in vegetables, nuts, olives, and avocados. Low-fat diets should be high in fiber, such as is found in whole grains and beans, and avoid added sugars.

“Your mindset should be on what you can include in your diet instead of what you should exclude,” Perelman said. “Figure out how to eat more fiber, whether it is from beans, whole grains, nuts, or vegetables, instead of thinking you shouldn’t eat ice cream. Learn to cook and rely less on processed foods. If you pay attention to the quality of food in your diet, then you can forget about counting calories.”

Reference: “Distinct factors associated with short-term and long-term weight loss induced by low-fat or low-carbohydrate diet intervention” by Xiao Li, Dalia Perelman, Ariel K. Leong, Gabriela Fragiadakis, Christopher D. Gardner and Michael P. Snyder, 13 December 2022, Cell Reports Medicine.
DOI: 10.1016/j.xcrm.2022.100870

Christopher Gardner, professor of medicine and co-senior author on the paper, also contributed to this work.



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Amy Robach and T.J. Holmes seen together in public for the first time since affair was exposed

It’s the look that says it all.

Seen together for the first time since they were taken off the air, these exclusive pictures obtained by DailyMail.com show T.J Holmes and Amy Robach wrapped up and loved up on a cold Manhattan day.

And while their careers may hang in the balance, today they seemed determined to keep up appearances. 

Not giving an inch to detractors, they showed no signs of taking their foot off the gas when it comes to the affair that has thrown them into a maelstrom of scandal and uncertainty.

Earlier, the pair appeared somber as they left Holmes’s apartment in the Financial District and headed to The Capital Grille just a couple of blocks away.

The giddiness of their earlier liaisons, whether flirting in midtown bars or holding hands in the back of taxis, was lacking as they walked side-by-side but not touching.

But it was a different story as they emerged from the restaurant smiling and tucked into each other. 

Amy Robach and T.J. Holmes were seen stepping out together again in New York on Thursday for the first time since they were suspended from GMA3 over their secret affair

The two lovers went for lunch in Manhattan’s Financial District before heading back to Holmes’s apartment nearby, walking arm-in-arm, unfazed by the prospect of being seen 

Perhaps buoyed by their wine and conversation, the couple giggled and joked with each other as they strolled back towards Holmes’s apartment building 

After more than two weeks of not being seen together, the co-anchors emerged today and showed the world they just can’t keep away from each other

Sources had told DailyMail.com that it was doubtful that Holmes, 45, and Robach, 49, would risk being seen together while the internal review into their conduct is pending.

There were no PDAs as they sat next to each other at the restaurant’s counter today. They exchanged glances and confidences but there were no PDAs as they dined.

Robach had arrived at Holmes’s apartment around noon, entering through the back door in an apparent attempt to keep below the radar. 

But any thought of being low key was discarded when they emerged through the front door moments later and walked the short distance to the restaurant.

Robach ordered a salad and glass of white wine while Holmes tucked into a steak – the turmoil of the past few days seeming to have done nothing to diminish his appetite.

They ate and chatted quietly and closely apparently unconcerned at who might see them now that their secret is out.

Amy and T.J. grabbed lunch at The Capital Grille, where they did not seem too concerned about being spotted as they opted to sit at the restaurant bar among other diners 

Amy, who looked casual in a hoodie, enjoyed a salad with a glass of white wine, while T.J., who matched his girlfriend’s look, tucked into a steak 

There were no PDAs as they sat sitting side by side at the counter, where they exchanged glances and confidences but not touches

While they did not appear as giddy and flirtatious with each other as they did during their earlier liaisons, the ousted lovers did seem comfortable in each other’s company amid all the turmoil 

After lunch, Amy was seen slipping out of the restaurant as T.J. followed her lead, before making their way towards his apartment

At one point, T.J. appeared to have a quick glance over his shoulder as they exited the restaurant

The couple continued their stroll home, walking beside each other arm-in-arm, at times appearing pensive and somber

They returned to T.J. apartment building, where Amy was seen arriving alone earlier today just before noon 

Earlier, Robach had spent some time at her old West Village apartment, once shared with estranged husband Andrew Shue, 55, and recently sold. 

Accompanied by one of her daughters, she removed some belongings before the two parted ways, and she headed on separately to meet Holmes.

After lunch, perhaps buoyed by their wine and conversation, the couple strolled back towards Holmes’s apartment. 

They walked arm in arm, through the rain, perhaps aware now of the looks that they were drawing from passers by, as they they gave every appearance of having eyes only for each other.

Up until now, Robach and Holmes had only been seen out in public separately since they were suspended from GMA3 a week after their affair was exposed. 

Sources told DailyMail.com that while the two have accepted the fate of their marriages, they don’t want to ‘jeopardize their futures with the network any more than they already have.’ 

Earlier the pair appeared somber as they left Holmes’s apartment in and headed to the Capital Grille just a couple of blocks away

The giddiness of their earlier liaisons, whether flirting in midtown bars or holding hands in the back of taxis, was lacking as they walked side by side but not touching

Prior to Thursday’s lunch date, Amy and T.J. had not been seen together in public since they were suspended from GMA3 on December 5

But even though their careers may hang in the balance, today they seemed determined to keep up appearances

At first the couple seemed determined to brazen it out – with Holmes sparking disbelief when he appeared alongside Robach and made light of the scandal after their relationship became public.

Then, speaking at the end of that first week he joked that it had been ‘a great week’ and that he wished it would ‘just keep going.’ 

Their next move was to claim that they were, ‘openly dating’ and speak about, ‘growing their relationship.’

And the truth is that when Holmes was first approached for comment by DailyMail.com, his knee-jerk reaction was a career saving attempt to ‘adamantly deny’ the relationship existed at all.

ABC News President Kim Godwin started this week by issuing a memo to all staff in an apparent attempt to tamp down office speculation and gossip over what she referred to euphemistically as the ‘on-going matter involving GMA 3 anchors T.J. Holmes and Amy Robach.’

She wrote: ‘I understand that the continuing coverage can be distracting from the incredibly important work our team does here at ABC News.’

She informed staff, ‘Amy and T.J. will remain off-air pending the completion of an internal review, and there will be a rotation of anchors at GMA3 for the time being.’

And while Godwin seems at pains to project an image of ‘business as usual,’ insiders say that Holmes and Robach are both keenly invested in salvaging their own careers.

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Teacher Li: How one man exposed China’s protests to the world



CNN
 — 

The unprecedented protests that swept China late last month, posing the biggest challenge to leader Xi Jinping’s authority since he came to power, had a peculiar focal point: a Chinese Twitter account with a cat avatar.

As people took to the streets to call for greater freedoms and an end to zero-Covid restrictions, the account “Teacher Li is Not Your Teacher” live-tweeted the demonstrations in real-time, offering a rare window into just how quickly and widely the eruption of dissent reverberated across the country.

Inside China, videos, photos and accounts of the protests were swiftly censored online. But participants, witnesses and others who knew how to scale the Great Firewall would send them to “Teacher Li,” which became a crucial source of information for people in China and beyond. (Twitter, like many other social media platforms and news sites, is blocked in China, but it’s accessible via a VPN.)

Behind the account is Li, a bespectacled 30-year-old painter, who spent most of his waking hours glued to a chair in front of a curved monitor and a pastel-colored keyboard – thousands of miles away from the protests in a living room corner in Italy.

“I haven’t seen sunlight in what seems like a long time,” Li told CNN, a week after the protests broke out.

For days on end, he waded through an endless flood of private messages in his Twitter inbox, sent by people across China with updates to share about the demonstrations and their aftermath. He posted them on their behalf, shielding the senders from the scrutiny of Chinese authorities.

In recent years, Beijing has extended its crackdown on dissent to the foreign platform, detaining and jailing Chinese Twitter users who criticized the government. But through Li, these anonymous voices of dissent were converged and amplified.

“This account may become a symbol that Chinese people are still pursuing freedom of speech,” Li said. “When you post something within China, it will quickly disappear. This account can document all these historical events and moments that cannot be saved inside the country.”

Li received thousands of submissions a day – and up to dozens per second at the height of the protests. His following quadrupled in two weeks to more than 800,000. Journalists, observers and activists monitored his feed closely, and some of his posts were aired on televisions across the world.

“I didn’t have the time to react at all. My only thought at the time was to document what was happening,” Li said. “The influence is beyond my imagination. I didn’t expect billions of clicks on my feed in such a short period of time.”

As his profile grew, Li caught the attention of the Chinese authorities. As the security apparatus went after the protesters in China with a sweeping campaign of surveillance, intimidation and detention, Li also came into their crosshairs.

Last Saturday, Li was tweeting away when he received an anxious phone call from his parents back home in eastern China – they had just had another visit from the police, they told him.

“As soon as I started to update Twitter, they called my parents to tell me to stop posting. And then they went to our house at midnight to harass my parents,” Li said.

It was their second police visit of the day. In the morning, a local police chief and a handful of officers had already called on Li’s parents. They accused Li of “attacking the state and the (Communist) Party” and presented a list of his tweets as “criminal evidence.”

“They wanted to know if there were any foreign forces behind me, whether I received any money, or paid people money for their submissions,” Li said.

Li told his parents he wasn’t working for anyone, and no money was involved. His father pleaded for him to “pull back from the brink” and stop posting.

“I can’t turn back now. Please don’t worry about me,” Li told him. “I don’t think I’m doing anything wrong.”

“You’re an artist, you shouldn’t touch politics,” his father said.

Li’s father knew what it was like to be on the wrong side of politics. Born to a Nationalist army officer in 1949, he was persecuted as a “counter-revolutionary” growing up under Mao Zedong’s tumultuous reign. In his adolescence, he could no longer stand the torment and fled to the hills in southern China, where he found work in a factory.

In the latter half of the Cultural Revolution, which swept China in the 1960s and 1970s, Li’s father was enrolled into a college as a “worker-peasant-soldier” student (admitted not on academic merit but class background), and stayed after graduation to work as an art teacher.

Since the brutal crackdown on the Tiananmen pro-democracy protests in 1989, “Don’t touch politics” has become a mantra for a generation of Chinese. As the country pivoted its focus to economic growth, an unspoken social contract was struck – that people would give up political freedoms for stability, material comfort and freedoms in their private lives.

But under leader Xi, that implicit deal is looking increasingly precarious. His zero-Covid policy has shuttered businesses, hampered economic growth and pushed youth unemployment to record levels; his authoritarian agenda has expanded censorship, tightened ideological control and squeezed personal freedoms to an extent unseen in decades.

“Chinese people are not keen on politics, but politics is constantly intruding into their lives. They assume there is an elephant in the room, but the elephant is gradually growing bigger and squeezing everyone’s living space,” Li said. “That’s why we’re seeing the explosion (of dissent) now.”

In China’s largest cities, from the eastern financial hub of Shanghai to the capital Beijing, the southern metropolis of Guangzhou and Chengdu in the west, political demands were chanted along with slogans against Covid tests and lockdowns. Many young people held up sheets of white paper in a symbolic protest against censorship, demanding the government give them back the freedom of speech, the press, movies, books and arts.

Their calls resonated deeply with Li, who grew up learning how to paint and watching foreign cartoons and films (he has a toy Yoda from Star Wars on a shelf next to his chair) during an era when China seemed freer and more open to the world.

“Now, all the movies showing in the cinema are patriotic films, countless songs have been taken down from music platforms, and many artworks are censored as soon as they’ve been created,” he said. “If you came from that relatively free era and look at the way things are now, you’ll find it very sad.”

Li said he did not seek out politics – instead, like many young Chinese who took to the streets, he was unwittingly swept up by political currents. He described himself as someone who had been “pushed along” by the tides, “chosen by history” by chance to document an important chapter of it.

“I was someone who painted and scribbled cringy love stories,” Li wrote in a statement addressed to Chinese officials on November 28, after police paid their first visit to his parents. “All of this is supposed to be far away from me. But you, with your control of speech, made me who I am.”

Li would not even have been on Twitter – let alone be one of its most influential Chinese-language users – if censorship hadn’t become so suffocating on Weibo, China’s own Twitter-like platform.

Li was among the earliest users of Weibo, dating back to 2010. “I was lucky to have witnessed that era – it was, in fact, pretty free,” he said.

Liberal intellectuals, lawyers and journalists and other influential commentators led critical discussions on social issues – sometimes issuing scathing criticism or ridicule of officials.

From the internet, Li learned about human rights lawyer Pu Zhiqiang and dissident artist Ai Weiwei, which – among other things – gradually shifted his political views. (Li called his younger self a “little pink” – a somewhat derogatory term for China’s young and fierce nationalists. He used to find stories about his father’s tormented youth hard to believe. “Our country is so strong and powerful, how could these kinds of bad things happen?” he recalled himself asking.)

By 2012, Li had become more critical of society. At 19 years old, the budding artist held his first personal exhibition at a gallery in the eastern city of Jinan. He named it “Picasso at the Circus” – meant to “mock this absurd society, which is like a circus filled with funny animals,” according to an introduction of the event.

The relative freedom on Chinese social media was fleeting. Censorship started to tighten before Xi came to power, and the clampdown on free speech and outspoken commentators only accelerated. Many of the influential accounts Li had followed were banned, and some of their owners were jailed.

Things got even worse during the pandemic. On Weibo, countless accounts were banned for speaking out on a variety of issues, from feminism to the human cost of zero-Covid. Earlier this year, Li lost 52 accounts in the span of two months. “My accounts would survive for about four or five hours – with the shortest record being 10 minutes,” Li said. “I treated it as a performance art.”

He lost his last Weibo account by retweeting a photograph of a 15-year-old Uyghur girl in detention, who was featured in the BBC’s investigation on the Xinjiang Police Files. “I wanted to be brave for once, for her. It was well worth it,” he said on Twitter. “Having seen her face, I won’t be able to fall asleep tonight if I just sit by and not retweet it.”

After exhausting all the means to create new accounts, Li switched to Twitter. “It felt liberating because you no longer need to use acronyms or code names,” he said.

On Chinese social media, people have become accustomed to speaking in coded language to avoid censorship: “zf” means the government, “zy” means freedom, and the most sensitive term of all – the name “Xi Jinping” – can never be mentioned without triggering censorship or worse repercussions (Some internet users have been taken in for questioning by police for sharing memes or jokes about Xi in group chats). Instead, the top leader is often referred to simply as “him” or “that man.”

And so on November 26, when Li saw in his Twitter inbox a video showing crowds openly chanting “Xi Jinping, step down!” on the streets of Shanghai, under the close watch of police, he was dumbfounded.

“We can’t even discuss him on the internet. It is beyond everyone’s imagination that such a slogan would be shouted out on Urumqi Road,” Li said, referring to the site of the Shanghai protest.

“I’m a little embarrassed to tell you that I froze for a second when I heard the slogan. But I told myself that if they dare to shout it, I should be brave enough to document it. So I wrote it out word by word (in a Twitter post),” he said.

Among the thousands of direct messages Li received in his inbox were death threats. “I get a lot of anonymous harassment saying I know who you are, where you live, and I will kill you,” he said.

He ignored them and stayed focused on processing updates on the protests. But when he stepped away from his computer, the dark thoughts would come back to haunt him.

These threats, as well as the police harassment of his parents, weighed heavily on Li’s mind. But he is determined to carry on.

“This account is more important than my life,” he said. “I will not shut it down. I’ve arranged for someone else to take over if something bad happens to me.”

By the first week of December, the demonstrations had largely petered out. Some protesters received phone calls from the police warning them against taking to the streets again, others were taken away for questioning – and some remained in detention.

But in a major victory for the protesters, China announced on Wednesday a dramatic overhaul of its pandemic policy, scrapping some of the most onerous restrictions in the clearest sign yet the government is moving away from its draconian zero-Covid policy.

Like many protesters, Li will have to continue to face the consequences of his political defiance. He has not returned home to his parents since 2019, due to China’s border restrictions and the skyrocketing prices of plane tickets. The easing of domestic Covid measures has raised hopes that China is a step closer to opening its borders. But Li may never be able to go home again.

“When I saw people taking to the streets and holding up pieces of white paper, I knew I had to sacrifice something of myself, too,” he said. “I’m mentally prepared, even if authorities won’t let me see my parents again.”

Looking back, Li said he found absurdity in the fact that China’s stringent censorship of the press and the internet has made him, a painter as far away as Italy, a key documenter of the country’s most widespread protests in decades.

In the heat of the moment, he didn’t have the time to mull over whether it was all worth it. But he knows his life’s path is forever changed.

“I don’t think I am a hero. Those who took to the streets, they are the real heroes,” he said.

Now, Li has only one regret – that his Twitter name and handle were not chosen thoughtfully enough.

“If an account is to leave a mark in history, it should have a serious name,” he said.

His Twitter name is a self-mockery of his own accent: people from his home province cannot differentiate the pronunciations of “Li” – his surname – and “ni”, meaning “You.”

And his Twitter handle @whyyoutouzhele is a dig at Chinese Foreign Ministry spokesperson Zhao Lejian’s comments last year that foreign reporters should “touzhele,” or “chuckle to themselves,” for being able to live safely in China during the pandemic. The phrase has since been used widely on Chinese social media in a sarcastic way to criticize zero-Covid.

But Li is extremely proud of his Twitter avatar – a doodle of his tabby cat.

“The cat is now known to the Chinese diaspora around the world. But at the same time, it has also become the most dangerous cat on the Chinese internet,” he said.



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NASA leaves its Artemis I rocket exposed to winds above design limits

Enlarge / The upper part of the Space Launch System rocket and the Orion spacecraft likely faced the strongest wind gusts on Thursday morning.

Trevor Mahlmann

Early on Thursday morning, Hurricane Nicole made landfall near Vero Beach on Florida’s eastern coast. Because Nicole had a very large eye, nearly 60 miles in diameter, its strongest winds were located well to the north of this landfalling position.

As a result of this, Kennedy Space Center took some of the most intense wind gusts from Nicole late on Wednesday night and Thursday morning. While such winds from a Category 1 hurricane are unlikely to damage facilities, they are of concern because the space agency left its Artemis I mission—consisting of the Space Launch System rocket and Orion spacecraft—exposed on a pad at Launch Complex-39B. The pad is a stone’s throw from the Atlantic Ocean.

How intense were the winds? The National Weather Service hosts data from NASA sensors attached to this launch pad’s three lighting towers on a public website. It can be a little difficult to interpret the readings because there are sensors at altitudes varying from 132 feet to 457 feet. Most of the publicly available data appears to come from an altitude of about 230 feet, however, which would represent the area of the Space Launch System rocket where the core stage is attached to the upper stage. The entire stack reaches a height of about 370 feet above the ground.

Prior to Nicole’s arrival, NASA said its SLS rocket was designed to withstand wind gusts of 74.4 knots. Moreover, the agency stated on Tuesday in a blog post, “Current forecasts predict the greatest risks at the pad are high winds that are not expected to exceed the SLS design.”

From the publicly available data, however, it appears that the rocket was exposed to wind gusts near, at, or above 74.4 knots for several hours on Thursday morning. A peak gust of 87 knots was reported on the National Weather Service site, with multiple gusts above NASA’s design levels. It is possible that the 74.4-knot design limit has some margin built into it.

The space agency is incorrect to suggest that forecasters did not predict such winds from Nicole. The reality is that wind speed probability forecasts from the National Hurricane Center allowed for the possibility of winds that high, even if they were not the most likely scenario. On Tuesday, shortly before NASA issued its blog post update downplaying the risks to Artemis I from Nicole, the National Hurricane Center predicted a 15 percent chance of hurricane-force winds near Kennedy Space Center, which would have produced gusts similar to those measured Thursday morning at the launch site.

What’s next

So what happens now? Nominally, the space agency is still targeting a launch attempt at 1:04 am ET (06:04 UTC) on Wednesday, November 16. Theoretically that remains possible, but in reality it seems unlikely. When it is safe for NASA employees and contractors to return to Kennedy Space Center, perhaps later today or Friday, they will begin inspections of the vehicle.

According to Phil Metzger, an engineer who worked on the space shuttle program for NASA, the most likely concern will be the structural integrity of the rocket after being exposed to prolonged periods of high winds. A rocket is designed to go upward, so although its structure can endure intense pressure and winds in a vertical direction, it is not designed to withstand similar winds in the horizontal direction.

In a series of tweets, Metzger predicted that it will be a busy couple of weeks for structural engineers to assess the risks of damage from the storm and potentially seek waivers to fly the vehicle after its exposure to these loads. This will be a difficult task. There is no ability to X-ray the structures inside the rocket, so this process will involve running, and re-running, structural calculations. At some point the program’s leadership will have to decide whether the risk—which includes the potential for the rocket to break apart during launch—is too high to fly without further inspections or remedial work.

So why did NASA not just roll back for cover? The timing here is key. It takes about three days to prepare and roll the rocket back from the launch pad to the protective Vehicle Assembly Building at Kennedy Space Center. NASA, therefore, probably would have had to make the rollback decision Sunday. At the time, the most likely outcome, predicted by forecasters, was that the rocket would have been exposed to 40-knot winds.

Space agency officials have not been made publicly available to talk about their decision-making process, but NASA’s blog post on Tuesday suggests that a final call was indeed made on Sunday night: “Based on expected weather conditions and options to roll back ahead of the storm, the agency determined Sunday evening the safest option for the launch hardware was to keep the Space Launch System rocket and Orion spacecraft secured at the pad.”

From the space agency’s vantage point on Sunday, there was clearly a non-zero risk of damaging winds to the rocket, but it was low, probably less than 5 percent. Rolling the rocket back at the time would have taken away several launch attempts, and perhaps even wiped out the entire November launch period, for the long-awaited Artemis I mission. If the launch was delayed into December, that would have opened up a host of other problems for the agency, perhaps most critically that its certification of the solid rocket booster lifetime—these massive powder-based boosters have been stacked for nearly two years—was about to expire.

So NASA had a lot of good reasons to want to get the Artemis I mission off the launch pad this month. Accordingly, they gambled a bit with the weather. They may have lost.

Go to discussion…



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Astronomers spot exposed inner core of an ‘oddball’ star by accident

The exposed core of a massive star has been observed for the first time, a discovery that has been described as purely “serendipitous” by the team that chanced upon it.

Though the cores of stars are where the vast majority of stellar energy is generated by the nuclear fusion of hydrogen into helium, they are usually obscured by the bright outer material that encases them. Stellar cores are exposed only in rare and extremely short-lived circumstances. 

Observing such a core in isolation could help astrophysicists better understand the nuclear processes that occur at the heart of stars and how stellar objects evolve.

Related: Alien planets keep their parent stars young by forcing them to ‘exercise’

The exposed stellar core in question, a bright previously observed star dubbed Gamma Columbae (γ Columbae). has a mass of between 4 and 5 times that of the sun. The team that uncovered its exposed nature thinks that it was once part of a massive star with as much as 12 times the mass of the sun.

The nature of γ Columbae was uncovered by astronomers, including lead research author Andreas Irrgang of Dr. Karl Remeis-Observatory and the ECAP working group at Friedrich-Alexander University Erlangen-Nuremberg, Bamberg, Germany, as they were observing a group of stars and found that one of them was unusual.

Further investigating the light spectrum emitted by this unusual star the astronomers discovered increased abundances of helium and nitrogen. As these nuclear ashes are usually obscured by outer stellar plasma this indicates γ Columbae’s outer envelope is missing.

“This is probably the most interesting factor of all, in terms of scientific outcome, because all the cores are hidden in the other stars and here we have a naked one, a stripped one, and that will leave a very particular signal in its pulsations,” said Norbert Przybilla, head of the Institute for Astro- and Particle Physics at the University of Innsbruck and a co-author of the study, in a statement (opens in new tab) to Motherboard. “We have to follow up on that.” 

This led them to question what processes could have stripped γ Columbae of its outer layers reducing its radius considerably and leaving it as a glowing core. 

The team thinks that the previously massive star may have recently finished fusing hydrogen to helium in its core with prior research also indicating this is the case despite not hinting at the exposed core nature of γ Columbae.

The end of hydrogen fusion causes the outer layers of a star to ‘puff out.’ If a binary star companion is pulled into this expanding envelope of stellar material it could cause that material to be ejected. 

An artist’s depiction of a red supergiant star within the last year before it explodes. (Image credit: W. M. Keck Observatory/Adam Makarenko)

The team suggests two alternative potential mechanisms that could leave behind an exposed core. The stripping of outer material by a feeding companion binary star, or the evacuation of outer material by stellar winds to expose cores, the latter of which is usually seen in the late stages of incredibly massive stars with a mass between 20 and 25 times that of the sun.

Further study of γ Columbae will be needed to assess the true mechanism behind the exposed nature of the core as the star doesn’t exactly fit the parameters that match these suggested mechanisms. “Having a naked stellar core of such a mass is unique so far,” Przybilla told Motherboard, adding that the star so far appears to be an “oddball.” 

One thing the astronomers are fairly sure of is that this stripped core existence is a stage of the life of γ Columbae that will last just around 10,000 years. Though a long period of time in human terms this is no more than the proverbial blink of an eye in cosmic terms. 

This further indicates that the discovery of this exposed stellar core is highly fortuitous indeed. 

As for the future of this exposed core, the team said that γ Columbae is currently using helium to fuel nuclear fusion creating heavier elements, which it will eventually also begin to fuse. When γ Columbae eventually runs out of fuel for nuclear fusion the energy preventing the core from collapsing under the inward pressure of its own gravity will also cease.

This will lead to gravitational collapse triggering a stripped core supernova and turning γ Columbae into a neutron star — a stellar remnant with the mass of the sun condensed into a diameter around that of the average city on Earth.

The astronomers suggest that a better understanding of γ Columbae could come from studying it using asteroseismology, a field of science that studies the oscillations of stars and how sound waves pass through the plasma that comprises them to study stellar interiors.

The team’s research is published in the journal Nature Astronomy (opens in new tab).

Follow us on Twitter @Spacedotcom (opens in new tab) or on Facebook (opens in new tab). 



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‘We were completely exposed’: Russian conscripts say hundreds killed in attack | Russia

Hours after Aleksei Agafonov arrived in the Luhansk region on 1 November as part of a battalion of new conscripts, his unit were handed shovels and ordered to dig trenches throughout the night.

Their digging, which they took turns to do because of the lack of available shovels, was abruptly interrupted in the early hours of the next day as Ukrainian artillery lit up the sky and shells started raining down on Agafonov and his unit.

“A Ukrainian drone first flew over us, and after that their artillery started to pound us for hours and hours, nonstop,” Agafonov, who survived the shelling, told the Guardian in a phone interview on Monday.

“I saw men being ripped apart in front of me, most of our unit is gone, destroyed. It was hell,” he said, adding that his unit’s commanders abandoned them just before the shelling started.

Agafonov was called up on 16 October alongside 570 other conscripts in Voronezh, a city in the south-west of Russia, as part of Vladimir Putin’s nationwide mobilisation push that has seen more than 300,000 men drafted to go and fight in a war that the Kremlin calls its “special military operation”.

After the attacks stopped, Agafonov, with roughly a dozen other soldiers, retreated from the forest outside the Luhansk town of Makiivka to the nearby Russian-controlled city of Svatove. In Svatove, Agafonov and his group moved into a deserted building, trying to contact other mobilised soldiers who had been with him that night.

Makiivka

According to Agafonov’s estimates, only 130 draftees out of the 570 survived the Ukrainian attack, which would make it the deadliest known incident involving conscripts since the start of the mobilisation drive at the end of September.

“And many who survived are losing their minds after what happened. No one wants to go back,” Agafonov said.

The incident points to Russia’s willingness to throw hundreds of ill-prepared conscripts on to the frontline in Ukraine’s east, where some of the heaviest fighting has been taking place, in an effort to stem Kyiv’s advances.

There is growing anger in Russia as more coffins return from Ukraine, bringing home the remains of conscripts.

Some of the details surrounding last week’s shelling could not be independently verified. But the Guardian spoke to a second soldier, as well as two family members of surviving soldiers, who gave similar accounts.

“We were completely exposed, we had no idea what to do. Hundreds of us died,” said the second soldier, who asked to remain anonymous. “Two weeks of training doesn’t prepare you for this,” he said, referring to the limited military training conscripts received prior to being sent to Ukraine.

The Russian investigative outlet Verstka, which first reported on the incident on Saturday, cited the account of a third soldier, Nikolai Voronin, who similarly described coming under Ukrainian fire in the early hours of 2 November.

“There were lots of dead, they were lying everywhere … Their arms and legs were torn off,” Voronin told Verstka. “The shovels we used to dig our trenches were now being used to dig out the dead.”

The shelling has led to anguish in Voronezh, where a group of wives of the mobilised men recorded an angry video message on Saturday addressing the local governor.

“On the very first day, they put the draftees on the frontline. The command left the battlefield and fled,” Inna Voronina, the wife of a drafted soldier whose fate is unknown, said in the video.

The mother of another soldier can be heard saying: “They tell us over the phone that our sons are alive and healthy and even fulfilling their military duty. How the hell are they alive and healthy when they were all killed there?”

Last Friday, Putin boasted that Russia had mobilised 318,000 people into its armed forces, citing a high number of “volunteers”. He went on to invoke the popular Russian saying “we don’t leave our own behind”, claiming the phrase was “not empty words”.

But the chaotic mobilisation campaign, and the casualties that have followed since, have drawn criticism among even the most enthusiastic supporters of the war.

In a scathing statement on Telegram, Anastasia Kashevarova, a well-connected pro-war journalist, condemned Russian commanders on the ground who she said were mobilising untrained men.

“Groups of [mobilised men] are abandoned without communication, without the necessary weapons, without medicines, without the support of artillery,” she said. “Zinc coffins are already coming. You told us that there would be training, that they would not be sent to the frontline in a week. Did you lie again?”

In one video, purportedly filmed at a training centre in Kazan, the capital of Russia’s Tatarstan region, dozens of recently mobilised men are seen berating its military leadership over a lack of pay, water and food. An officer identified as Maj Gen Kirill Kulakov is seen retreating as the large crowd of enraged conscripts shout insults at him.

Perhaps sensing the growing discontent, Putin said on Monday that he planned to “personally discuss with Russians” the issues surrounding support for the mobilised. He urged local officials to “pay attention” to mobilised soldiers and their needs.

Despite the seemingly high costs, the mobilisation drive has so far not resulted in Russia gaining new ground, according to a recent report from the Institute for the Study of War, a Washington-based thinktank.

The report said the Russian army was “wasting the fresh supply of mobilised personnel on marginal gains” instead of massing sufficient soldiers to ensure success.

“Russian forces would likely have had more success in such offensive operations if they had waited until enough mobilised personnel had arrived to amass a force large enough to overcome Ukrainian defences,” the institute said last Thursday.

In another sign indicating poor morale and communications at the front, several pro-Kremlin journalists published an open letter reportedly from an elite Russian naval infantry unit that criticised its superiors’ decision-making after huge losses in what it called an “incomprehensible” assault on the village of Pavlivka.

Russian forces launched an offensive on Pavlivka, south-west of Donetsk, on 2 November, according to the Ukrainian military and pro-Russia officials. Four days later, the 155th Guards Naval Infantry Brigade reportedly accused its military leaders of the loss of 300 men in a letter to Oleg Kozhemyako, the governor of their home region in the far-east of Russia.

“We were thrown into an incomprehensible offensive,” the letter was quoted as saying by a number of prominent pro-war bloggers.

While the Guardian was not able to independently verify the contents of the letter, Kozhemyako appeared to acknowledge that it was genuine but said it overstated the true scale of the losses.

“We contacted the commanders. Yes, there are losses, there’s heavy fighting, but they are far from what is written in this appeal,” he said in a video statement on his Telegram channel. “I am sure that in any case the situation will be analysed and the competent authorities will give their assessment.”

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