Researchers generate the first complete, gapless sequence of a human genome

Scientists have published the first complete, gapless sequence of a human genome, two decades after the Human Genome Project produced the first draft human genome sequence. According to researchers, having a complete, gap-free sequence of the roughly 3 billion bases (or 'letters') in our DNA is critical for understanding the full spectrum of human genomic variation and for understanding the genetic contributions to certain diseases.

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Deserts 'breathe' water vapor, study shows

Deserts may seem lifeless and inert, but they are very much alive. Sand dunes, in particular, grow and move -- and according to a decades long research project, they also 'breathe' humid air.

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When worlds collide: Studying impact craters to uncover the secrets of the solar system

While for humans the constants might be death and taxes, for planets the constants are gravity and collisions. Astronomers are using information about impacts to understand the history and the composition of planets, moons, asteroids and meteorites throughout the solar system.

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Flowers' unseen colors can help ensure pollination, survival

You can't see it, but different substances in the petals of flowers create a 'bulls-eye' for pollinating insects, according to a scientist whose research sheds light on chemical changes in flowers which helps them respond to environmental changes, including climate change, that might threaten their survival.

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Researchers discover source of super-fast electron 'rain'

Scientists have discovered a new source of super-fast, energetic electrons raining down on Earth's atmosphere, a phenomenon that contributes to the colorful aurora borealis and poses hazards to satellites, spacecraft and astronauts.

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European earthworms reduce insect populations in North American forests

Earthworms introduced into northern North America have a negative impact on the insect fauna above ground. Soil ecologists found this impact for abundance as well as for biomass and species richness of insects. Their results indicate that changes in insect communities can have causes that have previously received little attention.

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Mounds of ice in craters give new insight into Mars’ past climate

Newly discovered deposits of layered ice in craters scattered around Mars' southern hemisphere provide insights into how the planet's orientation controlled the planet's climate over the past 4 million years, according to a new study. The findings help scientists understand what controlled Mars' past climate, which is essential for predicting when the planet could have been habitable.

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Good hydration may reduce long-term risks for heart failure

Staying well-hydrated may be associated with a reduced risk for developing heart failure. New findings suggest that consuming sufficient amounts of fluids throughout life not only supports essential body functioning but may also reduce the risk of severe heart problems in the future.

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Researchers discover a mysterious, new type of wave in the Sun whose speed defies explanation

Researchers have discovered a new set of waves in the Sun that, unexpectedly, appear to travel much faster than predicted by theory. The high-frequency retrograde (HFR) waves -- which move in the opposite direction of the Sun's rotation -- appear as a pattern of vortices (swirling motions) on the surface of the Sun and move at three times the speed established by current theory.

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Record broken: Hubble spots farthest star ever seen

NASA's Hubble Space Telescope has established an extraordinary new benchmark: detecting the light of a star that existed within the first billion years after the universe's birth in the big bang -- the farthest individual star ever seen to date.

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Unravelling the mystery of parrot longevity

Bigger brains have led some species of parrot to live surprisingly long lives, new research shows.

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Spiders use webs to extend their hearing

A newly published study of orb-weaving spiders has yielded some extraordinary results: The spiders are using their webs as extended auditory arrays to capture sounds, possibly giving spiders advanced warning of incoming prey or predators.

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Scientists observe mysterious death of a star emitting six rings

Astrophysicists studying in unprecedented detail a red giant star named V Hydrae have witnessed the star's mysterious death throes. Researchers discovered that the carbon-rich star has expelled six slowly expanding molecular rings and two hourglass-shaped structures ejecting matter out into space at high speeds.

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Hundreds of new mammal species waiting to be found, study says

At least hundreds of so-far unidentified species of mammals are hiding in plain sight around the world, a new study suggests. Researchers found that most of these hidden mammals are small bodied, many of them bats, rodents, shrews, and moles.

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New nasal spray treats Delta variant infection in mice, indicating broad spectrum results

Researchers have shown a new compound delivered in a nasal spray is highly effective in preventing and treating COVID-19 caused by the Delta variant in mice. The researchers believe this is the first treatment of its kind proven to be effective against all COVID-19 variants of concern reported to date, including alpha, beta, gamma and delta.

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Ancient helium leaking from core offers clues to Earth's formation

Helium-3, a rare isotope of helium gas, is leaking out of Earth's core, a new study reports. Because almost all helium-3 is from the Big Bang, the gas leak adds evidence that Earth formed inside a solar nebula, which has long been debated.

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Once called cellular debris, tiny bubbles may play key role in understanding, treating diseases

Scientists have long puzzled about a critical way that cells communicate with one another, but researchers have now used a simple roundworm to solve the mystery.

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Scientists shave 'hairs' off nanocrystals to improve their electronic properties

A new study introduces a breakthrough in making nanocrystals function together electronically. The research may open the doors to future devices with new abilities.

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Mechanism that underlies local dopamine release in the brain

Researchers have identified a new mechanism that underlies dopamine release in the brain. The research, conducted in mice, shows that another chemical messenger called acetylcholine can trigger the firing of dopamine neurons by binding to a part of these neurons not previously known to initiate firing.

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Scientists solve solar secret

The further we move away from a heat source, the cooler the air gets. Bizarrely, the same can't be said for the surface of the Sun, but scientists may have just explained a key part of why.

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Artificial neurons go quantum with photonic circuits

In recent years, artificial intelligence has become ubiquitous, with applications such as speech interpretation, image recognition, medical diagnosis, and many more. At the same time, quantum technology has been proven capable of computational power well beyond the reach of even the world's largest supercomputer. Physicists have now demonstrated a new device, called quantum memristor, which may allow to combine these two worlds, thus unlocking unprecedented capabilities. The experiment has been realized on an integrated quantum processor operating on single photons.

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Popular male dolphins produce more offspring

The reproductive success of male dolphins is not determined by strength or age, but via social bonds with other males. The better integrated males are in their social network, the more offspring they produce, a new study has shown using long-term behavioral and genetic data.

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Breaking down plastic into its constituent parts

Researchers have succeeded in breaking down plastic into its molecular building blocks and in recovering over 90 percent of them -- a first step towards genuine plastic recycling.

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Large study challenges the theory that light alcohol consumption benefits heart health

In an observational analysis of UK Biobank participants, light to moderate drinkers had the lowest heart disease risk, followed by people who abstained from drinking; however, light to moderate drinkers tended to have healthier lifestyles than abstainers, which likely accounted for their better heart health. Genetic evidence in this same population suggested that all levels of alcohol intake are associated with increased cardiovascular risk. Notably, the risk of cardiovascular disease linked to light alcohol consumption was modest but rose exponentially with higher intake, even at intake levels currently endorsed as 'low risk.'

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Scientists develop the largest, most detailed model of the early universe to date

Thesan is a new universe simulation that models the first billion years of the universe with the highest resolution, over the largest volume, to date.

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Oleic acid -- a key to activating the brain's 'fountain of youth'

A team of researchers reveals that oleic acid produced in the brain is an essential regulator of the process that enables learning and memory and supports proper mood regulation. The finding has paved the path to discovering potential new therapeutic strategies to counteract cognitive and mood decline in patients with neurological disorders.

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Astronomers reveal best image yet of mysterious odd radio circles in space

Astronomy's newest mystery objects, odd radio circles or ORCs, have been pulled into sharp focus by an international team of astronomers using the world's most capable radio telescopes.

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New enzyme discovery is another leap towards beating plastic waste

Scientists who helped to pioneer the use of enzymes to eat plastic have taken an important next step in developing nature-based solutions to the global plastics crisis. They have characterized an enzyme that has the remarkable capacity to help break down terephthalate (TPA), one of the chemical building blocks of polyethylene terephthalate (PET) plastic, which is used to make single-use drinks bottles, clothing and carpets.

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Scientists determine structure of a DNA damage 'first responder'

The results of this collaborative project overturn some conventional wisdom about how the DNA repair process works.

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Ape 'vocabularies' shaped by social mingling — like in humans

Social mingling shapes and transforms the 'vocabularies' of apes, just like in humans, according to new research.

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Tiny magnets could hold the secret to new quantum computers

Scientists have discovered a type of magnetic behavior that could help enable magnetically based quantum devices.

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A whale's tale: The story hidden in their mouths

Baleen plates -- the signature bristle-like apparatus toothless whales use to feed -- reveal how these large aquatic mammals adapt to environmental changes over time.

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When the brain sees a familiar face

Researchers have uncovered new information about how the area of the brain responsible for memory is triggered when the eyes come to rest on a face versus another object or image.

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Viral Video: क्यों सोशल मीडिया कर रहा है इस नौजवान के जज़्बे को सलाम? जानें एक प्रेरक कहानी!

Viral Video सोशल मीडिया पर आए दिन कोई न कोई वीडियो वायरल होता रहता है। कई मज़ेदार होते हैं कई आपको हंसाते हैं तो कई आपके लिए प्रेरणा का एक स्त्रोत बन जाते हैं। ऐसा एक वीडियो आज वायरल हो रहा है जो एक पहाड़ी लड़के के बारे में।

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Stackable 'holobricks' can make giant 3D images

Researchers have developed a new method to display highly realistic holographic images using 'holobricks' that can be stacked together to generate large-scale holograms.

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Look! Up in the sky! Is it a planet? Nope, just a star

Among thousands of known exoplanets, astronomers have flagged three that are actually stars.

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Combing the cosmos: New color catalog aids hunt for life on frozen worlds

Aided by microbes found in the subarctic conditions of Canada's Hudson Bay, an international team of scientists has created the first color catalog of icy planet surface signatures to uncover the existence of life in the cosmos.

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Do sharks get their ZZZs? New evidence shows it’s not all about the hunt

The first physiological evidence that sharks take a break from tracking prey to catch a few winks has been uncovered by a researcher who specializes in sleep among aquatic creatures, from sharks to crocodiles.

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Scientists find brain network that makes mice mingle

The difference between a social butterfly and a lone wolf is actually at least eight differences, according to new findings by a team of brain researchers. By simultaneously spying on the electrical activity of several brain regions, researchers can both identify how social or solitary an individual mouse is, and, by zapping nodes within this social brain network, can prompt mice to be even more gregarious.

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Fast-melting alpine permafrost may contribute to rising global temperatures

Using lake sediment in the Tibetan Plateau, a team of researchers was able to show that permafrost at high elevations is more vulnerable than arctic permafrost under projected future climate conditions.

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Models for molecules show unexpected physics

Engineers discover unusual properties in magnetized colloids that surprisingly adhere to the physics described by Kelvin's equation, which models the thermodynamics of molecular systems.

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An 'oracle' for predicting the evolution of gene regulation

Computational biologists have created a neural network model capable of predicting how changes to non-coding DNA sequences in yeast affect gene expression. They also devised a unique way of representing this data in two dimensions, making it easy to understand the past and future evolution of non-coding sequences in organisms beyond yeast -- and even design custom gene expression patterns for gene therapies and industrial applications. Despite the sheer number of genes that each human cell contains, these so-called 'coding' DNA sequences comprise just 1% of our entire genome. The remaining 99% is made up of 'non-coding' DNA -- which, unlike coding DNA, does not carry the instructions to build proteins.

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Avian secret: The key to agile bird flight is switching quickly between stable and unstable gliding

While it had been assumed that unstable gliding was the key to agility in bird flight, a collaboration between aerospace engineers and biologists has revealed that stability plays a role.

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Forget mammoths: These researchers are exploring bringing back the extinct Christmas Island rat

Dinosaurs went extinct 65 million years ago, mammoths 4,000 years ago, and the Christmas Island Rat 119 years ago. Since becoming a popular concept in the 1990s, de-extinction efforts have focused on grand animals with mythical stature, but now a team of paleogeneticists has turned their attention to Rattus macleari, and their findings provide insights into the limitations of de-extinction across all species.

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Molecules, rare earths, and light: Innovative platform for quantum computers and communications

Communication between quantum systems depends on their ability to effectively interact with light. Some molecular crystals have proven to be new materials with excellent quantum properties. They are of great interest for creating quantum computers that can communicate among themselves using fibre optic networks.

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Beheaded croc reveals ancient family secrets

The partially fossilized remains of a giant extinct crocodilian that could have been ritualistically beheaded explain how modern crocodilian species may have evolved. Discovered in southern China, the new species is estimated to have been 6 meters long and the top predator of its environment. Human migration into southern China and subsequent hunting might have driven it to extinction only a few hundred years ago. The discovery may impact knowledge of ancient Chinese civilization.

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Innovative solution for thermal energy storage

A new research article features one major challenge overcome through a remarkably simple idea, opening the door to expanded use of phase-change materials (PCMs) for energy-efficient heating and cooling.

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Some of the world's lowest rates of dementia found in Amazonian indigenous groups

A new study reveals that two indigenous groups in the Bolivian Amazon have among the lowest rates of dementia in the world. An international team of researchers found among older Tsimane and Moseten people, only about 1 percent suffer from dementia. In contrast, 11 percent of people age 65 and older living in the United States have dementia.

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The immune system is very complicated, but now, it's on a chip

Scientists have a new tool to help them tease out the immune system's mysteries. Researchers cultured human B and T cells inside a microfluidic Organ Chip and coaxed them to form functional lymphoid follicles (LFs) -- structures that reside in lymph nodes and other parts of the human body and mediate immune responses. The LF Chip replicated human immune responses to both pathogens and a commercial influenza vaccine in vitro, offering significant improvement over existing preclinical models like cells in a dish and non-human primates.

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Viral Video: जब बर्फीले जंगल में वर्कआउट कर रहे थे दो लोग, तभी पीछे से आ गया भालू...

Viral Video आपने यूं तो सोशल मीडिया पर कई वायरल और मज़ेदार वीडियो देखें होंगे। लेकिन हाल ही में एक अद्भुत वीडियो काफी वायरल हो रहा है जिसमें दो लोगों के साथ एक भालू भी जंगल में वर्कआउट कर रहा है।

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New species of extinct vampire-squid-like cephalopod is the first of its kind with 10 functional arms

New research shows that the oldest ancestors of the group of animals that includes octopuses and vampire squids had not eight but 10 arms. The study, which describes a new species of vampyropod based on a 328-million-year-old fossil that had not been previously described, pushes back the age of the group by nearly 82 million years.

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Cellular rejuvenation therapy safely reverses signs of aging in mice

Age may be just a number, but it's a number that often carries unwanted side effects, from brittle bones and weaker muscles to increased risks of cardiovascular disease and cancer. Now, scientists have shown that they can safely and effectively reverse the aging process in middle-aged and elderly mice by partially resetting their cells to more youthful states.

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Lead exposure in last century shrank IQ scores of half of Americans, study finds

Researchers calculate that exposure to car exhaust from leaded gas during childhood stole a collective 824 million IQ points from over 170 million Americans alive today, more than half of the population of the United States.

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Researchers uncover how the human brain separates, stores, and retrieves memories

Researchers have identified two types of cells in our brains that are involved in organizing discrete memories based on when they occurred. This finding improves our understanding of how the human brain forms memories and could have implications in memory disorders such as Alzheimer's disease.

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Collectors in the prehistoric world recycled old stone tools to preserve the memory of their ancestors

A new study asks what drove prehistoric humans to collect and recycle flint tools that had been made, used, and discarded by their predecessors. After examining flint tools from one layer at the 500,000-year-old prehistoric site of Revadim in the south of Israel's Coastal Plain, researchers propose a novel explanation: prehistoric humans, just like us, were collectors by nature and culture.

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Amazon rainforest is losing resilience: New evidence from satellite data analysis

The Amazon rainforest is likely losing resilience, data analysis from high-resolution satellite images suggests. This is due to stress from a combination of logging and burning -- the influence of human-caused climate change is not clearly determinable so far, but will likely matter greatly in the future. For about three quarters of the forest, the ability to recover from perturbation has been decreasing since the early 2000s, which the scientists see as a warning sign. The new evidence is derived from advanced statistical analysis of satellite data of changes in vegetation biomass and productivity.

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Pig grunts reveal their emotions

We can now decode pigs' emotions. Using thousands of acoustic recordings gathered throughout the lives of pigs, from their births to deaths, an international team of researchers has translated pig grunts into the emotions they appear to express.

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The future of data storage is double-helical, research indicates

Researchers added seven new letters to DNA's molecular alphabet and developed a precise, letter-perfect sequencing method. These innovations helped transform the double helix into a robust, sustainable data storage platform fit for the Information Age and built to last well beyond the 21st century.

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Mummification in Europe may be older than previously known

Mummification of the dead probably was more common in prehistory than previously known. This discovery is made at the hunter-gatherer burial sites in the Sado Valley in Portugal, dating to 8,000 years ago. A recent study presents new evidence for pre-burial treatments such as desiccation through mummification, which has not been suggested for the European Mesolithic before.

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Effects of noise on marine life

New research shows turtles can experience temporary hearing loss from an excess of underwater noise. This phenomenon, previously noted in other marine animals such as dolphins and fish, was not widely understood for reptiles and underscores another potential risk for aquatic turtles. This high volume of sound, referred to as underwater noise pollution, can be caused by passing ships and offshore construction.

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The physics of fire ant rafts could help engineers design swarming robots

Fire ants survive floods by forming rafts made up of thousands of wriggling insects. New research reveals how these creepy-crawly lifeboats change shape over time.

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'Drug factory' implants eliminate ovarian, colorectal cancer in mice

Bioengineers have shown they can eradicate advanced-stage ovarian and colorectal cancer in mice in as little as six days with a treatment that could be ready for human clinical trials later this year.

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Gene editing gets safer thanks to redesigned Cas9 protein

Scientists have redesigned a key component of a widely used CRISPR-based gene-editing tool, called Cas9, to be thousands of times less likely to target the wrong stretch of DNA while remaining just as efficient as the original version, making it potentially much safer.

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Archaeologists discover innovative 40,000-year-old culture in China

When did populations of Homo sapiens first arrive in China and what happened when they encountered the Denisovans or Neanderthals who lived there? A new study opens a window into hunter-gatherer lifestyles 40,000 years ago. Archaeological excavations at the site of Xiamabei in the Nihewan Basin of northern China have revealed the presence of innovative behaviors and unique toolkits.

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Powerful warm winds seen blowing from a neutron star as it rips up its companion

Black holes and neutron stars are some of the most extreme objects in the Universe, ripping up neighboring stars. But they are messy eaters and much of they take in gets flung back into space. Scientists have now observed a neutron star blasting out warm and cold wind as it devoured another star. The findings shed new light on the behavior of these stellar cannibals and how they influence the evolution of galaxies.

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How to make a 'computer' out of liquid crystals

Researchers have shown for the first time how to design the basic elements needed for logic operations using a kind of material called a liquid crystal -- paving the way for a completely novel way of performing computations.

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Potato genome decoded

More than 20 years after the first release of the human genome, scientists have for the first time deciphered the highly complex genome of the potato. Their impressive technical feat will accelerate efforts to breed superior varieties.

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A solar illusion: Coronal loops may not be what they seem

Many coronal loops -- ropey strands of plasma that scientists have long thought existed in the sun's atmosphere -- may actually be optical illusions, according to a new paper that challenges prevailing assumptions of what we know, and don't know, about the sun.

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'Closest black hole' system found to contain no black hole

In 2020, astronomers reported the closest black hole to Earth, located just 1000 light-years away in the HR 6819 system. But the results of their study were contested by other researchers. In a new paper, these two teams have united to report that there is in fact no black hole in HR 6819, which is instead a 'vampire' two-star system in a rare and short-lived stage of its evolution.

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Tyrannosaurus remains hint at three possible distinct species

A new analysis of Tyrannosaurus skeletal remains reveals physical differences in the femur, other bones and dental structures across specimens that could suggest Tyrannosaurus rex specimens need to be re-categorized into three distinct groups or species, reports a new study.

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VIDEO: गुब्बारे के साथ खेलते कुत्तों का वीडियो हुआ वायरल, आप दिल भी खुश कर देगा ये वीडियो

VIDEO इस वीडियो में आप एक बड़े से मैदान पर कई सारे कुत्तों को एक गुब्बारे के साथ खेलता देख सकते हैं। सब इतने मज़े से उछल-उछलकर गुब्बारों को उड़ा रहे हैं कि ऐसा लग रहा है इनके बीच कोई मैच चल रहा है।

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