ScienceDaily |
Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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Study finds tummy-tuck patients still shedding pounds five years later14:28 Patients who undergo tummy tuck surgery may be in for more than just cosmetic changes — a new study shows they often keep losing weight for years after the procedure. Researchers followed 188 patients and found consistent weight reduction up to five years later, especially in those with higher initial BMIs. Interestingly, lifestyle improvements, such as better diet and exercise habits, may play a… Scientists’ top 10 bee-magnet blooms—turn any lawn into a pollinator paradise14:28 Danish and Welsh botanists sifted through 400 studies, field-tested seed mixes, and uncovered a lineup of native and exotic blooms that both thrill human eyes and lure bees and hoverflies in droves, offering ready-made recipes for transforming lawns, parks, and patios into vibrant pollinator hotspots. Whispers in the womb: How cells “hear” to shape the human body14:28 Scientists found that embryonic skin cells “whisper” through faint mechanical tugs, using the same force-sensing proteins that make our ears ultrasensitive. By syncing these micro-movements, the cells choreograph the embryo’s shape, a dance captured with AI-powered imaging and computer models. Blocking the cells’ ability to feel the whispers stalls development, hinting that life’s first instructi… Breakthrough battery lets physicists reverse entanglement—and rewrite quantum law14:28 Scientists have finally uncovered a quantum counterpart to Carnot’s famed second law, showing that entanglement—once thought stubbornly irreversible—can be shuffled back and forth without loss if you plug in a clever “entanglement battery.” Tiny quantum drumhead sends sound with 1-in-a-million loss—poised to rewrite tech14:28 Researchers have developed an ultra-thin drumhead-like membrane that lets sound signals, or phonons, travel through it with astonishingly low loss, better than even electronic circuits. These near-lossless vibrations open the door to new ways of transferring information in systems like quantum computers or ultra-sensitive biological sensors. How a lost gene gave the sea spider its bizarre, leggy body14:28 Scientists have decoded the sea spider’s genome for the first time, revealing how its strangely shaped body—with organs in its legs and barely any abdomen—may be tied to a missing gene. The detailed DNA map shows this ancient creature evolved differently from its spider and scorpion cousins, lacking genome duplications seen in those species. With new gene activity data, researchers now have a pow… Feeling mental exhaustion? These two areas of the brain may control whether people give up or persevere14:28 When you're mentally exhausted, your brain might be doing more behind the scenes than you think. In a new study using functional MRI, researchers uncovered two key brain regions that activate when people feel cognitively fatigued—regions that appear to weigh the cost of continuing mental effort versus giving up. Surprisingly, participants needed high financial incentives to push through challengi… New research shows Monday stress is etched into your biology14:28 Feeling jittery as the week kicks off isn’t just a mood—it leaves a biochemical footprint. Researchers tracked thousands of older adults and found those who dread Mondays carry elevated cortisol in their hair for months, a stress echo that may help explain the well-known Monday heart-attack spike. Even retirees aren’t spared, hinting that society’s calendar, not the workplace alone, wires Monday … Antarctica’s slow collapse caught on camera—and it’s accelerating14:28 Long-lost 1960s aerial photos let Copenhagen researchers watch Antarctica’s Wordie Ice Shelf crumble in slow motion. By fusing film with satellites, they discovered warm ocean water, not surface ponds, drives the destruction, and mapped “pinning points” that reveal how far a collapse has progressed. The work shows these break-ups unfold more gradually than feared, yet once the ice “brake” fails, … From air to stone: The fig trees fighting climate change14:28 Kenyan fig trees can literally turn parts of themselves to stone, using microbes to convert internal crystals into limestone-like deposits that lock away carbon, sweeten surrounding soils, and still yield fruit—hinting at a delicious new weapon in the climate-change arsenal. Cough medicine turned brain protector? Ambroxol may slow Parkinson’s dementia6.července Ambroxol, long used for coughs in Europe, stabilized symptoms and brain-damage markers in Parkinson’s dementia patients over 12 months, whereas placebo patients worsened. Those with high-risk genes even saw cognitive gains, hinting at real disease-modifying power. Multisensory VR forest reboots your brain and lifts mood—study confirms6.července Immersing stressed volunteers in a 360° virtual Douglas-fir forest complete with sights, sounds and scents boosted their mood, sharpened short-term memory and deepened their feeling of nature-connectedness—especially when all three senses were engaged. Researchers suggest such multisensory VR “forest baths” could brighten clinics, waiting rooms and dense city spaces, offering a potent mental refr… Pregnancy’s 100-million-year secret: Inside the placenta’s evolutionary power play6.července A group of scientists studying pregnancy across six different mammals—from humans to marsupials—uncovered how certain cells at the mother-baby boundary have been working together for over 100 million years. By mapping gene activity in these cells, they found that pregnancy isn’t just a battle between mother and fetus, but often a carefully coordinated partnership. These ancient cell interactions,… Scientists capture real-time birth of ultrafast laser pulses6.července Scientists have captured the moment a laser "comes to life"—and what they found challenges long-held beliefs. Using a special technique to film laser light in real time, researchers observed how multiple pulses grow and organize themselves into a stable rhythm. Instead of one pulse splitting into many (as previously thought), these pulses are amplified and evolve through five fast-paced phases, f… New tech tracks blood sodium without a single needle6.července Scientists have pioneered a new way to monitor sodium levels in the blood—without drawing a single drop. By combining terahertz radiation and optoacoustic detection, they created a non-invasive system that tracks sodium in real time, even through skin. The approach bypasses traditional barriers like water interference and opens up potential for fast, safe diagnostics in humans. |