List of All Articles with Tag 'h'

iPhone users have been urged to download a new update immediately. The update was pushed out by Apple to iPhones and iPads after a major security vulnerability was found in the devices. Patching up that hole with the new software update should keep those devices safe. But without it, attackers could break into an iPhone and spy on its user. The security issue was found by researchers at the University of Toronto’s Citizen Lab. They said the problem was being “actively exploited” by hackers, and that all users should update immediately. They were doing so by delivering commercial software called Pegasus, which is made and sold by Israeli company the NSO Group. That software is expensive and targeted, and has primarily been used on specific activists, journalists and politcians, who are likely to know if they are at particular risk of an attack. The latest attack was used on the iPhone of a member of staff at a US civil society organisation with international offices, Citizen Lab said. It named the new exploit BLASTPASS and said that it did not even require users to click anything on their device. The NSO Group and Apple have in recent years been engaged in a long-running fight to find and fix security flaws that could allow for the delivery of that software. Recent iPhone updates brought a new “Lockdown Mode” that places extra restrictions on the device in an attempt to close up potential security flaws. That includes not downloading images that could include spyware, for instance – which is how attackers deliver the hack in this most recent scare. Downloading the new update is simple. It is done through the Settings app on iPhones and iPads, by clicking the “general” and then “software update” options – that will check for any new updates, and offer the option to download it. Phones may eventually automatically install the new operating system, which could mean that no download shows up in that screen. Users can check if they have already updated to the new, patched operating system by clicking the “about” option in the general settings, and looking whether they have the newest iOS 16.6.1. Similar updates are available for Macs and Apple Watches, and are installed in much the same way. Citizen Lab also advised that anyone “who may face increased risk because of who they are or what they do” should switch on Lockdown Mode. Apple confirmed that would block the new attack, researchers said. Read More Apple is dropping leather from iPhone cases and Watch bands, report claims Apple is about to make a huge change to the iPhone that it never wanted to do Here’s when you will actually be able to get the new iPhone

BEIJING China's Huawei Technologies on Friday started presales for its Mate 60 Pro+ smartphone, adding a new version

For decades, sexual assault accusations marred his career - and for decades, the media failed to investigate.

PetroChina has acquired 100% of electric vehicle (EV) charging firm Potevio New Energy Co Ltd in the latest

Scientists have grown human kidneys in pigs, for the very first time. Researchers at the Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences and Wuyi University created human-pig chimeric embryos containing a combination of human and pig cells. When they transferred into 13 surrogate pig mothers, they developed kidneys that contained mostly human cells at a rate of 50 to 60 per cent, giving hope for potential transplants in the future. “Rat organs have been produced in mice, and mouse organs have been produced in rats, but previous attempts to grow human organs in pigs have not succeeded,” said the senior author Liangxue Lai. “Our approach improves the integration of human cells into recipient tissues and allows us to grow human organs in pigs.” The kidneys were not entirely human as they included vasculature and nerves made mostly from pig cells, meaning they could not be used for transplantation in their current form, but it is still a pretty impressive step. And apart from the kidneys, the embryos were dominated by pig cells, with very few human cells in the brain or central nervous system. Making brains using human and pig cells is very controversial for ethical reasons, so there are tight regulations for this kind of research. Meanwhile, pig cells tend to outcompete human cells during development, so previous experiments have created embryos that are almost entirely pig. The latest work, published in Cell Stem Cell, overcame this by genetically engineering a single-cell pig embryo so that it lacked two genes needed for kidney development. This created a gap within the embryo that could be filled by human cells. “We found that if you create a niche in the pig embryo, then the human cells naturally go into these spaces,” said Prof Zhen Dai of Guangzhou Institutes of Biomedicine and Health, another senior author. The scientists said that being able to incubate a fully human kidney inside a pig would be likely to take many years. “We would probably need to engineer the pigs in a much more complex way and that also brings some additional challenges,” said Miguel Esteban, also of the Guangzhou institute and a senior author. A central challenge would be to allow human nerves and vasculature to develop within the target organ without nerve cells developing in the central nervous system that could lead to a humanised brain. “Even theoretically it’s not clear how you’d do that,” said Ilic. Sign up to our free Indy100 weekly newsletter Have your say in our news democracy. Click the upvote icon at the top of the page to help raise this article through the indy100 rankings.

Everyone has a theory about their dreams and the science or meaning behind them. And when the weather hots up, the more bizarre they tend to get. “Dreams are a fascinating and enigmatic phenomenon that occur during sleep, encompassing a vast realm of imaginative experiences,” says sleep expert and CEO of MattressNextDay, Martin Seeley. “They are a collection of thoughts, images, sensations, and emotions that unfold within the theatre of our minds.” Why do we dream? When we sleep, our brain enters a complex state where it engages in various cognitive processes, explains Seeley, including memory consolidation, problem-solving and emotional regulation. “Dreams are thought to emerge from these processes, weaving together fragments of memories, desires, fears, and subconscious thoughts into a narrative or non-linear sequence,” adds Seeley. “And they can be surreal, vivid, or mundane, blurring the boundaries between reality and fantasy.” While the precise purpose and meaning of dreams remains a subject of exploration and debate, Seeley says they can serve as a portal into the inner workings of our minds: “Providing a canvas for exploration, processing of emotions, and glimpses into the subconscious depths of our psyche.” Why do we dream more when it’s hot? Lisa Artis, deputy CEO of The Sleep Charity, says: “When the weather is hot, it can disrupt our sleeping patterns, making it difficult to fall asleep in the first place – and causes us to wake more often during the REM (rapid eye movement) sleep phase.” REM sleep is where we experience intense dreaming, explains Artis – so waking during or at the end of this cycle can mean we are more likely to remember our dreams. “Dreams happen regularly, but are often forgotten and our mind’s way of unpacking the day’s events, dealing with stress and sorting through our day-to-day thoughts,” notes Artis. Our body heat generally peaks in the afternoon then starts to drop over an evening to prepare us for sleep, says Artis. Melatonin, the sleep hormone, is produced when this happens.“An ideal temperature is around 16-18°C and anything around the 24°C mark can cause restlessness,” says Artis. “So, it’s no surprise that when we’re experiencing a heatwave with temperatures reaching over 30°C, it affects our sleep.”Can a heatwave really make dreams more surreal? The connection between heatwaves and the content or nature of dreams is not fully understood. However, there may be a few possible explanations if your dreams seem weirder when the weather heats up – although Seeley points out these are all speculative. First off, he agrees it may have a lot to do with the fact we’re less comfortable and waking more when it’s hot. “These frequent awakenings can interrupt the normal sleep cycle and result in a higher probability of remembering dreams, including the more unusual or vivid ones,” he notes. “So, during a heatwave, the increased frequency of waking up during the night might contribute to a greater recall of strange or funky dreams.” Secondly, the body’s physiological response to heat may influence brain activity, he adds: “Heat can affect neurotransmitter levels, such as serotonin and dopamine, which play a role in regulating mood and emotions. These alterations in neurotransmitter activity might impact the content and emotional tone of dreams, potentially leading to more surreal or bizarre experiences.” Psychological factors could also play a role. Heatwaves can cause restlessness and increased stress levels in some individuals. Seeley adds: “Stress and emotional fluctuations can manifest in dreams as strange or unusual scenarios, as the mind processes and attempts to make sense of these experiences.” Can we stop strange heatwave dreams happening? While it’s probably not possible to completely control the content of our dreams, there are certain strategies you can try to promote better sleep – and potentially reduce the likelihood of experiencing a restless night and unusual dreams during hot weather. Create a cool sleep environment: “Use fans, air conditioning, or open windows to circulate cool air in your bedroom – and consider using lightweight, breathable bedding materials,” says Seeley. Stay hydrated: “Drink enough water throughout the day to prevent dehydration, especially during hot weather,” he continues. “Being adequately hydrated can help maintain a balanced sleep cycle.” Practice relaxation techniques: “Engage in activities that promote relaxation before bed, such as deep breathing exercises, meditation, or taking a warm bath,” suggests Seeley. “These practices can help calm your mind and promote a more restful sleep.” Read More Charity boss speaks out over ‘traumatic’ encounter with royal aide Ukraine war’s heaviest fight rages in east - follow live What are the royals doing to mark the anniversary of the Queen’s death All the times Kate has channelled the late Queen’s style since her death YouTube begins verifying videos by UK doctors to tackle health misinformation

By Iain Withers LONDON HSBC will halt commercial payments by business customers to and from Russia and Belarus,

By Yelin Mo and Brenda Goh BEIJING/SHANGHAI A new series of smartphones launched by China's Huawei Technologies has

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As Covid cases spread in 2020, visitors to the University of Arkansas for Medical Sciences were greeted by a colorful sign put up by grateful neighbors outside the university's medical center: "Heroes Work Here."

Former President Donald Trump falsely claimed Wednesday that polls show his support among Black Americans has quadrupled or quintupled since his mug shot was released.

A row over pay and conditions has led to walkouts at two liquefied natural gas facilities.