Laboratory-evolved bacteria switch to consuming carbon dioxide for growth

Over the course of several months, researchers created Escherichia coli strains that consume carbon dioxide for energy instead of organic compounds. This achievement in synthetic biology highlights the incredible plasticity of bacterial metabolism and could provide the framework for future carbon-neutral bioproduction.

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A new theory for how black holes and neutron stars shine bright

Astrophysicists employed massive super-computer simulations to calculate the mechanisms that accelerate charged particles in extreme environments. They concluded their energization is powered by the interplay of chaotic motion and reconnection of super-strong magnetic fields.

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High amounts of screen time begin as early as infancy

Children's average daily time spent watching television or using a computer or mobile device increased from 53 minutes at age 12 months to more than 150 minutes at 3 years, according to a recent analysis. By age 8, children were more likely to log the highest amount of screen time if they had been in home-based childcare or were born to first-time mothers.

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Humans co-evolved with immune-related diseases -- and it's still happening

Some of the same mutations allowing humans to fend off deadly infections also make us more prone to certain inflammatory and autoimmune diseases, such as Crohn's disease. Researchers describe how ancestral origins impact the likelihood that people of African or Eurasian descent might develop immune-related diseases. The authors also share evidence that the human immune system is still evolving.

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OMG! सांप को रस्सी बनाकर खेल रहे बच्चे, वीडियो हुआ वायरल

वियतनाम का एक वीडियो सोशल मीडिया में वायरल हो रहा है जिसे देखकर आप हैरान रह जाएंगे। इस वीडियो में बच्चे एक सांप को रस्सी बनाकर खेल रहे हैं।

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First recording of a blue whale's heart rate

With a lot of ingenuity and a little luck, researchers monitored the heart rate of a blue whale in the wild. The measurement suggests that blue whale hearts are operating at extremes -- and may limit the whale's size.

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Dangerous bacteria communicate to avoid antibiotics

Researchers have found a new survival mechanism for a commonly known type of bacteria. It can send out warning signals and thus make sure that other bacteria escape 'dangers' such as antibiotics. The researchers hope that the new knowledge can be utilized to make antibiotic treatment more effective.

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What keeps cells in shape? New research points to two types of motion

The health of cells is maintained, in part, by two types of movement of their nucleoli. This dual motion within surrounding fluid, it reports, adds to our understanding of what contributes to healthy cellular function and points to how its disruption could affect human health.

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Scientists inch closer than ever to signal from cosmic dawn

Researchers have taken a new and significant step toward detecting a signal from the period in cosmic history when the first stars lit up the universe.

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Ultrafast quantum simulations: A new twist to an old approach

Billions of tiny interactions occur between thousands of particles in every piece of matter in the blink of an eye. Simulating these interactions in their full dynamics was said to be elusive but has now been made possible.

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New study looks to biological enzymes as source of hydrogen fuel

Research has chemists one step closer to recreating nature's most efficient machinery for generating hydrogen gas. This new development may help clear the path for the hydrogen fuel industry to move into a larger role in the global push toward more environmentally friendly energy sources.

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Tendon stem cells could revolutionize injury recovery

The buildup of scar tissue makes recovery from torn rotator cuffs, jumper's knee, and other tendon injuries a painful, challenging process, often leading to secondary tendon ruptures. New research reveals the existence of tendon stem cells that could potentially be harnessed to improve tendon healing and even to avoid surgery.

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Using fungi to search for medical drugs

An enormous library of products derived from more than 10,000 fungi could help us find new drugs. Researchers have set up this library and screened it for biologically active compounds. The researchers identified various known compounds, among which the cholesterol lowering drug lovastatin.

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Study paves way to better understanding, treatment of arthritis

New research has provided the first complete, cellular-level look at what's going on in joints afflicted by osteoarthritis, a debilitating and costly condition that affects nearly one-quarter of adults in the United States.

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Babies in the womb may see more than we thought

Light-sensitive cells active in the retina even before the fetus can distinguish images may play a larger role in the developing eye and brain than previously thought. Intrinsically photosensitive retinal ganglion cells seemingly help establish blood supply to the retina, circadian rhythms and the pupillary light reflex. Researchers have now discovered that these cells are electrically connected in a network that is able to detect light intensity, suggesting a bigger role in development.

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Viral Video: अजगर के खतरनाक वार से चित हो गया हिरण, फुर्ती देख हो जाएंगे दंग

वीडियो में अजगर को बिजली की रफ्तार से अपने शिकार पर वार करते दिखाया गया है। आप भी इस वीडियो में अजगर की फुर्ती को देखकर दंग रह जाएंगे।

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Video: ट्रेन में था 10 फुट लंबा किंग कोबरा, ऐसे किया गया रेस्क्यू

King Cobra Rescue उत्तराखंड में एक ट्रेन से 10 फुट लंबे किंग कोबरा को रेस्क्यू करने का वीडियो सामने आया है।

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Universal features of music around the world

New research supports the idea that music all around the globe shares important commonalities, despite many differences.

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Little-known protein appears to play important role in obesity and metabolic disease

With unexpected findings about a protein that's highly expressed in fat tissue, scientists have opened the door to critical new understandings about obesity and metabolism. The discovery could lead to new approaches for addressing obesity and potentially many other diseases.

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Genetic discovery holds implications for better immunity, longer life

Wrinkles on the skin of a microscopic worm might provide the key to a longer, healthier life for humans. Working with Caenorhabditis elegans, a transparent nematode found in soil, researchers found that the nervous system controls the tiny worm's cuticle, a skin-like exterior barrier, in response to bacterial infections.

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Highest-energy light from a gamma-ray burst ever

Researchers have observed a gamma-ray burst with an afterglow that featured the highest energy photons -- a trillion times more energetic than visible light -- ever detected in a burst.

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Link between inflammation and mental sluggishness shown in new study

Scientists have uncovered a possible explanation for the mental sluggishness that often accompanies illness.

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Amazon deforestation and number of fires show summer of 2019 not a 'normal' year

The perceived scale of the Amazon blazes received global attention this summer. However, international concerns raised at the time were countered by the Brazilian Government, which claimed the fire situation in August was 'normal' and 'below the historical average'. A new report finds that the number of active fires in August was actually three times higher than in 2018 and the highest number since 2010.

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Ketogenic diet helps tame flu virus

A high-fat, low-carbohydrate diet like the Keto regimen has its fans, but influenza apparently isn't one of them. Mice fed a ketogenic diet were better able to combat the flu virus than mice fed food high in carbohydrates, according to a new study.

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The difference between an expert's brain and a novice's

In learning new tasks, neuron networks in the brain of mice become more refined and selective. Charting changes in neural activity can help inform the design of better computational models for understanding decision making and cognition.

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NASA's Mars 2020 will hunt for microscopic fossils

Scientists with NASA's Mars 2020 rover have discovered what may be one of the best places to look for signs of ancient life in Jezero Crater, where the rover will land on Feb. 18, 2021.

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Extinct giant ape directly linked to the living orangutan

Researchers have succeeded in reconstructing the evolutionary relationship between a two million year old giant primate and the living orangutan. It is the first time genetic material this old has been retrieved from a fossil in a subtropical area. This allows the researchers to accurately reconstruct animal, including human, evolutionary processes way beyond the limits known today.

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Ancient Egyptians gathered birds from the wild for sacrifice and mummification

In ancient Egypt, sacred ibises were collected from their natural habitats to be ritually sacrificed, according to a new study.

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Experts unlock key to photosynthesis, a find that could help us meet food security demands

Scientists have solved the structure of one of the key components of photosynthesis, a discovery that could lead to photosynthesis being 'redesigned' to achieve higher yields and meet urgent food security needs.

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OMG! युवक के कान में रह रही थी कॉकरोच की पूरी 'फैमिली', ऐसे सामने आई हकीकत

जी हां। यह खबर आपको अजीब लग रही होगी कि भला कॉकरोच की फैमिली किसी शख्स के कान में कैसे रह रही थी।

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Researchers capture moving object with ghost imaging

Researchers have developed a way to capture moving objects with the unconventional imaging method known as ghost imaging. The new method could make the imaging technique practical for new applications such as biomedical imaging, security checks and video compression and storage.

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Stalled weather patterns will get bigger due to climate change

Climate change will increase the size of stalled high-pressure systems that can cause heat waves, droughts and other extreme weather, according to a new study.

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Environmental cost of cryptocurrency mines

Bitcoin, Ethereum, Litecoin and Monero -- the names of digital-based 'cryptocurrencies' are being heard more and more frequently. But despite having no physical representation, could these new methods of exchange actually be negatively impacting our planet? It's a question being asked by researchers who are investigating the environmental impacts of mining cryptocurrencies.

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Good noise, bad noise: White noise improves hearing

White noise is not the same as other noise -- and even a quiet environment does not have the same effect as white noise. With a background of continuous white noise, hearing pure sounds becomes even more precise, as researchers have shown. Their findings could be applied to the further development of cochlear implants.

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Distant worlds under many suns

An astrophysicist has discovered many new multiple star systems that contain exoplanets. For this, he searched more than 1,300 exoplanet host stars. He found that 15 per cent of those stars have at least one companion star, which is only about half the frequency expected for solar like stars. This could indicate that the influence of several stars in a system disrupts the process of planet formation.

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Insulin can increase mosquitoes' immunity to West Nile virus

A discovery has the potential to inhibit the spread of West Nile virus as well as Zika and dengue viruses. The researchers demonstrated that mammalian insulin activated an antiviral immunity pathway in mosquitoes, increasing the insects' ability to suppress the viruses. Since mosquito bites are the most common way humans are infected with West Nile, stopping the virus among the insects would protect human health.

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Could cytotoxic T-cells be a key to longevity?

Scientists have used single-cell RNA analysis to find that supercentenarians -- meaning people over the age of 110 -- have an excess of a type of immune cell called cytotoxic CD4 T-cells.

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इस देश की कंपनियों में महिलाओं का चश्मा पहनना बैन, जानें ऐसा क्यों है?

Women banned from wearing glasses जापान में कुछ कंपनियों ने महिलाओं के चश्मा पहनने पर रोक लगा दी है।

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Bacteria may contribute more to climate change as planet heats up

As bacteria adapt to hotter temperatures, they speed up their respiration rate and release more carbon, potentially accelerating climate change.

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Specific neurons that map memories now identified in the human brain

Neuroengineers have found the first evidence that individual neurons in the human brain target specific memories during recall. They studied recordings in neurosurgical patients who had electrodes implanted in their brains and examined how the patients' brain signals corresponded to their behavior while performing a virtual-reality object-location memory task. The researchers identified 'memory-trace cells' whose activity was spatially tuned to the location where subjects remembered encountering specific objects.

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Too much ultra-processed food linked to lower heart health

Americans get more than 50 percent of their daily calories from ultra-processed foods. Measures of heart health decrease as ultra-processed food consumption rises.

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Brains of girls and boys are similar, producing equal math ability

New research comprehensively examined the brain development of young boys and girls. Their research shows no gender difference in brain function or math ability.

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Gold Toilet: सोने से बने इस टॉयलेट में जड़े हैं 4000 से अधिक हीरे, कीमत सुनकर उड़ जाएंगे होश

Gold toilet इन दिनों सोशल मीडिया में सोने से बना एक टॉयलेट चर्चा का विषय बना हुआ है। ठोस सोने से बने इस टॉयलेट में हजारों हीरे जड़े हुए हैं।

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Hubble captures a dozen sunburst arc doppelgangers

Astronomers using the NASA/ESA Hubble Space Telescope have observed a galaxy in the distant regions of the Universe which appears duplicated at least 12 times on the night sky. This unique sight, created by strong gravitational lensing, helps astronomers get a better understanding of the cosmic era known as the epoch of reionisation.

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New model for the way humans localize sounds

One of the enduring puzzles of hearing loss is the decline in a person's ability to determine where a sound originates, a key survival faculty that allows animals to pinpoint the location of danger, prey and group members. Researchers are proposing a model based on a more dynamic neural code.

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Go with the flow: Scientists design new grid batteries for renewable energy

Scientists have designed an affordable 'flow battery' membrane that could accelerate renewable energy for the electrical grid.

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Carbon dioxide capture and use could become big business

Capturing carbon dioxide and turning it into commercial products, such as fuels or construction materials, could become a new global industry, according to a new study.

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New measurement yields smaller proton radius

Using the first new method in half a century for measuring the size of the proton via electron scattering, scientists have produced a new value for the proton's radius in a new experiment.

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Microbes harvest electrons: Novel process discovered

New work reveals how one kind of bacteria 'eats' electricity by pulling in electrons straight from an electrode source.

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Data-driven definition of unhealthy yet pervasive 'hyper-palatable' foods

New research offers specific metrics that might qualify foods as hyper-palatable -- and finds most foods consumed in the United States meet these criteria.

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Why is ice so slippery?

The answer lies in a film of water that is generated by friction, one that is far thinner than expected and much more viscous than usual water, reminiscent of the 'snow cones' of crushed ice we drink during the summer.

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Chemists observe 'spooky' quantum tunneling

Chemists have demonstrated characteristics of a phenomenon called quantum tunneling by using a very large electric field to alter the ability of ammonia molecules to switch between the normal and inverted states.

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Any amount of running linked to significantly lower risk of early death

Any amount of running is linked to a significantly lower risk of death from any cause, finds a pooled analysis of the available evidence.

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Stressed to the max? Deep sleep can rewire the anxious brain

Researchers have found that the type of sleep most apt to calm and reset the anxious brain is deep sleep, also known as non-rapid eye movement (NREM) slow-wave sleep, a state in which neural oscillations become highly synchronized, and heart rates and blood pressure drop.

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Decade Old McDonalds Burger: 10 साल से खराब नहीं हुआ यह बर्गर, इसे रोज देखते हैं 4 लाख से अधिक लोग

Decade Old McDonalds Burger यूरोपीय देश आइसलैंड के दक्षिणी क्षेत्र में स्नोटरा हाउस में रखे गए बर्गर और फ्राइज 10 साल से खराब नहीं हुए हैं। इस बात को जानकर लोग काफी हैरान हैं।

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Light-based 'tractor beam' assembles materials at the nanoscale

Researchers have adapted a light-based technology employed widely in biology -- known as optical traps or optical tweezers -- to operate in a water-free liquid environment of carbon-rich organic solvents. The optical tweezers act as a light-based 'tractor beam' that can assemble nanoscale semiconductor materials precisely into larger structures. Unlike the tractor beams of science fiction, which might grab massive spaceships, these optical tweezers can trap materials that are nearly one billion times shorter than a meter.

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Screen-based media associated with structural differences in brains of young children

A new study documents structural differences in the brains of preschool-age children related to screen-based media use.

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The world is getting wetter, yet water may become less available for North America and Eurasia

With climate change, plants of the future will consume more water than in the present day, leading to less water available for people living in North America and Eurasia, according to a new study. The research suggests a drier future despite anticipated precipitation increases for places like the United States and Europe, populous regions already facing water stresses.

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Ornament with eagle talons from Neanderthal Period

For the first time, researchers found evidence of the ornamental uses of eagle talons in the Iberian Peninsula.

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Voyager 2 reaches interstellar space

Researchers report the spacecraft Voyager 2 has reached interstellar space, following Voyager 1's historic passage six years ago. In the study, the researchers note a jump in plasma density detected by a plasma wave instrument on the spacecraft as evidence Voyager 2 has entered interstellar space.

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सांप पालने का शौक ही बन गई मौत की वजह! घर से मिले 140 सांप

अमेरिका के इंडियाना राज्य की एक महिला को सांप पालने का शौक था लेकिन जब उसकी मौत हुई तो उसके गले में 8 फीट लंबा अजगर लिपटा हुआ था।

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How measles wipes out the body's immune memory

A new study shows that measles wipes out 20 to 50 percent of antibodies against an array of viruses and bacteria, depleting a child's previous immunity. A measles-ravaged immune system must 'relearn' how to protect the body against infections. The study details the mechanism and scope of this measles-induced 'immune amnesia.' The findings underscore the importance of measles vaccination, suggesting those infected with measles may benefit from booster shots of all previous childhood vaccines.

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Three-drug combo improves lung function in most common genetic form of cystic fibrosis

A phase three clinical trial determined that a 3-drug combination improved lung function and reduced symptoms in cystic fibrosis (CF) patients who have a single copy of the most common genetic mutation for the disease.

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