List of All Articles with Tag 'h'

Many taking part in early polling have been asked to vote in the presence of armed Russian soldiers.

By Gram Slattery MANCHESTER, New Hampshire U.S. 2024 Republican presidential contender Nikki Haley wants to send special forces

By Qiaoyi Li and Brenda Goh BEIJING/SHANGHAI (Reuters) -China's passenger vehicle sales returned to growth in August year-on-year, as deeper

By David Randall NEW YORK A potential U.S. government shutdown at the end of September could add to

Scientists in Israel have created a model of a human embryo from stem cells, without using sperm, eggs or a womb. A team at Israel's Weizmann Institute of Science made the model, which resembles an embryo at day 14, when it acquires internal structures but before it lays down the foundations for body organs, and the work was published in the journal Nature. But the scientists involved said it would take a long time yet to create an embryo from scratch. Team leader Jacob Hanna said the team took stem cells derived from adult human skin cells, as well as others cultured in the lab, then reverted the cells to an early state.They then manipulated them to make a model of an embryo, rather than an actual or synthetic one. "The question is, when does an embryo model become considered an embryo? When that happens, we know the regulations. At the moment we are really, really far off from that point," Hanna said. However, they said the work could open the door to new ways to test the effect of drugs on pregnancies, better understand miscarriages and genetic diseases, and maybe grow transplant tissues and organs. "They are not identical. There are differences from human embryos, but still, this is the first time, if you open an atlas or a textbook, you can say - yeah I can really see the similarity between them," said Hanna. "In about 1 percent of the aggregates we can see that the cells start differentiating correctly, migrating and sorting themselves into the correct structure, and the farthest we could get is day 14 in human embryo development," he said. Their next goal, Hanna said, is to advance to day 21 and also reach a threshold of a 50 per cent success rate. Magdalena Żernicka-Goetz, a professor of development and stem cells at the University of Cambridge, said the study joins six other similar human embryo-like models published from teams around the world this year, including from her lab. "None of these models fully recapitulate natural human development but each adds to ways in which many aspects of human development can now be studied experimentally," she said. 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.

President Donald Trump heads to South Dakota on Friday for a campaign rally, where he is expected to receive the endorsement of South Dakota Gov. Kristi Noem.

Republican presidential contender Nikki Haley, the former U.S. ambassador to the UN, has received a bump in opinion

SHANGHAI China's yuan finished the domestic session on Friday at its weakest since the global financial crisis, hit

The White House Situation Room, the high-security complex beneath the West Wing where presidents watch history unfold and receive top-secret intelligence, has undergone a much-needed makeover for the first time in 15 years.

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 All the times Kate has channelled the late Queen’s style since her death It’s not just dry skin: 5 things everyone needs to know about eczema YouTube begins verifying videos by UK doctors to tackle health misinformation

Sir Ian McKellen has revealed that he wasn't the first choice to play Gandalf in 'The Lord of the Rings' franchise and got the part after Sir Anthony Hopkins and Sir Sean Connery turned it down.

The remains of 2,000-year-old Roman walls have been discovered by archaeologist in Switzerland in the foothills of the Alps. During the excavation of a gravel pit in Cham in the canton, or state, of Aug in central Switzerland, the walls, which once protected a Roman building complex, were found. Other pieces have also been unearthed by archaeologists, include a plaster wall, iron nails, and gold fragments. As well as items such as bowls, millstones for grinding, glassware, and crockery and ceramic jugs known as amphorae. In a statement form the Office for the Preservation of Monuments and Archeology, the findings were labelled an "archaeological sensation" for the region and could shed light on Roman activity in central Switzerland. Gishan Schaeren, head of the Department of Prehistory and Protohistoric Archaeology said in the statement: "Roman buildings of similar dimensions were last excavated in Cham-Heiligkreuz almost 100 years ago. We were also amazed that the top bricks were even visible above ground." The walls extend over an area of at least 5,300 square feet (500 square metres). Although it's unclear how Romans used the site, including whether it was a "villa with a view or a temple building," said professor of archaeology of the Roman provinces at the University of Bern Christa Ebnöther. The team said that findings of Roman tableware known as terra sigillata - which means "sealed earth" in Latin - were found, suggesting elite people were at the site. The amphorae, which typically held liquids such as wine, olive oil and fish sauce, are evidence that Romans in the region traded with those in the Mediterranean. Archaeologists also found several copper and bronze coins, including a silver denarius minted by Julius Caesar from the first century B.C. The discovery of the Roman walls is not the first ancient find in the area. Previously, archaeologists had found remains of a middle Bronze Age settlement, burials from the late Bronze Age, and a number of coins form the era of the Celts. 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.