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Friday 31 January 2020

Modeling study estimates spread of 2019 novel coronavirus

New modeling research estimates that up to 75,800 individuals in the Chinese city of Wuhan may have been infected with 2019 novel coronavirus (2019-nCoV) as of Jan. 25, 2020. The authors caution that given the lack of a robust and detailed timeline of records of suspected, probable, and confirmed cases and close contacts, the true size of the epidemic and its pandemic potential remains unclear.

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What a pair! Coupled quantum dots may offer a new way to store quantum information

Researchers have for the first time created and imaged a novel pair of quantum dots -- tiny islands of confined electric charge that act like interacting artificial atoms. Such ''coupled'' quantum dots could serve as a robust quantum bit, or qubit, the fundamental unit of information for a quantum computer.

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Anti-solar cells: A photovoltaic cell that works at night

What if solar cells worked at night? That's no joke. In fact, a specially designed photovoltaic cell could generate up to 50 watts of power per square meter under ideal conditions at night, about a quarter of what a conventional solar panel can generate in daytime, according to a recent concept article.

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ये है दुनिया का अनोखा गांव,जहां बात-बात करते सो जाते हैं लोग

आजकल की बिगड़ती लाइफस्टाइल ने जहां लोगों से उनकी नींद छीन ली है। वहीं दुनिया में कुछ लोग ऐसे भी हैं जहां लोग कभी भी सो जाते हैं।

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Thursday 30 January 2020

Newest solar telescope produces first images

The National Science Foundation's Daniel K. Inouye Solar Telescope has released its first images. They reveal unprecedented detail of the sun's surface and preview the world-class products to come from this preeminent 4-meter solar telescope.

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Citizen science discovers a new form of the northern lights

Working together with space researchers, amateur photographers have discovered a new auroral form. Named 'dunes' by the hobbyists, the phenomenon is believed to be caused by waves of oxygen atoms glowing due to a stream of particles released from the sun.

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Wednesday 29 January 2020

दुनिया के सबसे मोटे लड़के ने 4 साल में कम किया 110 किलो वजन, सोशल मीडिया पर हो रही है चर्चा

मोटापा कितना तकलीफदेह हो सकता है या कहें कि जिंदगी बर्बाद कर सकता है। ये दर्द अगर किसी से जानना है तो इंडोनेशिया के आर्या परमाना से पूछा जा सकता है।

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Brain networks come 'online' during adolescence to prepare teenagers for adult life

New brain networks come 'online' during adolescence, allowing teenagers to develop more complex adult social skills, but potentially putting them at increased risk of mental illness, according to new research.

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New injection technique may boost spinal cord injury repair efforts

Researchers describe a new method for delivering neural precursor cells to spinal cord injuries in rats, reducing the risk of further injury and boosting the propagation of potentially reparative cells.

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Meteorite chunk contains unexpected evidence of presolar grains

An unusual chunk in a meteorite may contain a surprising bit of space history. Presolar grains -- tiny bits of solid interstellar material formed before the sun was born -- are sometimes found in primitive meteorites. But a new analysis reveals evidence of presolar grains in part of a meteorite where they are not expected to be found.

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MRI-based mapping of the squid brain

Scientists are closer to understanding the incredible ability of squid to instantly camouflage themselves. Researchers have completed an MRI-based mapping of the squid brain to develop an atlas of neural connections.

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Tuesday 28 January 2020

Driven by Earth's orbit, climate changes in Africa may have aided human migration

New research describes a dynamic climate and vegetation model that explains when regions across Africa, areas of the Middle East, and the Mediterranean were wetter and drier and how the plant composition changed in tandem, possibly providing migration corridors throughout time.

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Nanoparticle chomps away plaques that cause heart attacks

Scientists have invented a nanoparticle that eats away -- from the inside out -- portions of plaques that cause heart attacks.

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Tiny salamander's huge genome may harbor the secrets of regeneration

If scientists can find the genetic basis for the axolotl's ability to regenerate, they might be able to find ways to restore damaged tissue in humans. But they have been thwarted in the attempt by another peculiarity of the axolotl -- it has the largest genome of any animal yet sequenced, 10 times larger than that of humans.

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New gene correction therapy for Duchenne muscular dystrophy

Duchenne type muscular dystrophy (DMD) is the most common hereditary muscular disease among children, leaving them wheelchair-bound before the age of 12 and reducing life expectancy. Researchers have developed a gene therapy that may provide permanent relief for those suffering from DMD.

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Monday 27 January 2020

New study debunks myth of Cahokia's Native American lost civilization

An archaeologist has dug up ancient human feces, among other demographic clues, to challenge the narrative around the legendary demise of Cahokia, North America's most iconic pre-Columbian metropolis.

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Parkinson's disease may start before birth

People who develop Parkinson's disease before age 50 may have been born with disordered brain cells that went undetected for decades, according to new research. The research points to a drug that potentially might help correct these disease processes.

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Lab turns trash into valuable graphene in a flash

Scientists are using high-energy pulses of electricity to turn any source of carbon into turbostratic graphene in an instant. The process promises environmental benefits by turning waste into valuable graphene that can then strengthen concrete and other composite materials.

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Keto diet works best in small doses, mouse study finds

A ketogenic diet -- which provides 99 percent of calories from fat and only 1 percent from carbohydrates -- produces health benefits in the short term, but negative effects after about a week, researchers found in a study of mice.

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Astronomers detect large amounts of oxygen in ancient star's atmosphere

Astronomers have detected large amounts of oxygen in the atmosphere of one of the oldest and most elementally depleted stars known. This new finding provides an important clue on how oxygen and other important elements were produced in the first generations of stars in the universe.

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Discovery sheds new light on how cells move

Through experiments, researchers found that the force each cell applies to the surface beneath it -- in other words, traction -- is the dominant physical factor that controls cell shape and motion as cells travel as a group.

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9वीं मंजिल से महिला गिरी और फिर आराम से उठकर चली गई, वीडियो वायरल

अगर कोई 9वीं मंजिल से गिरे तो उसका क्या हाल होगा। आप कहेंगे कि हड्डियां चकनाचूर हो जाएंगी और तो और जान भी जा सकती है

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Saturday 25 January 2020

ताकि बच्चा माृतभूमि की मिट्टी पर रखे पहला कदम, पिता ने खर्च किए 200 डॉलर

आमतौर पर हम सभी को अपनी जन्मभूमि से बेहद प्यार होता है। यहां की मि्टटी से एक अलग ही लगाव होता है। पढ़ाई और नौकरी के लिए भले ही हम कितने ही दूर क्यों न चलें जाएं।

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Wednesday 22 January 2020

बच्चों ने बाहर घूमने से मना किया तो पैरेंट्स ने ऐसे सिखाया सबक, जानकर रह जाएंगे हैरान

आजकल ज्यादातर बच्चों की दुनिया स्मार्टफोन तक सिमट कर रह गई है। स्टडी से लेकर एंटरटेनमेंट तक और स्पोर्ट्स से लेकर डेली रूटीन की हर छोटी-बड़ी जरूरत के लिए वे सिर्फ और सिर्फ इंटरनेट पर ही निर्भर है। ऐसे में पैरेंट्स ने मोबाइल फोन से दूर करने के लिए एक अनूठा तरीका निकाला है।

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Sea level rise could reshape the United States, trigger migration inland

A new study uses machine learning to project migration patterns resulting from sea-level rise. Researchers found the impact of rising oceans will ripple across the country, beyond coastal areas at risk of flooding, as affected people move inland. Popular relocation choices will include land-locked cities such as Atlanta, Houston, Dallas, Denver and Las Vegas. The model also predicts suburban and rural areas in the Midwest will experience disproportionately large influx of people relative to their smaller local populations.

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Solving a biological puzzle: How stress causes gray hair

Scientists have found evidence to support long-standing anecdotes that stress causes hair graying. Researchers found that in mice, the type of nerve involved in the fight-or-flight response causes permanent damage to the pigment-regenerating stem cells in the hair follicle. The findings advance knowledge of how stress impacts the body, and are a first step toward blocking its negative effects.

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Earth's oldest asteroid strike linked to 'big thaw'

Scientists have discovered Earth's oldest asteroid strike occurred at Yarrabubba, in outback Western Australia, and coincided with the end of a global deep freeze known as a Snowball Earth. The research used isotopic analysis of minerals to calculate the precise age of the Yarrabubba crater for the first time, putting it at 2.229 billion years old -- making it 200 million years older than the next oldest impact.

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Brewing a better espresso, with a shot of math

Researchers are challenging common espresso wisdom, finding that fewer coffee beans, ground more coarsely, are the key to a drink that is cheaper to make, more consistent from shot to shot, and just as strong.

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Emissions of potent greenhouse gas have grown, contradicting reports of huge reductions

Despite reports that global emissions of the potent greenhouse gas were almost eliminated in 2017, an international team of scientists has found atmospheric levels growing at record values.

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Platypus on brink of extinction

New research calls for action to minimize the risk of the platypus vanishing due to habitat destruction, dams and weirs.

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Insect bites and warmer climate means double-trouble for plants

Scientists think that current models are incomplete and that we may be underestimating crop losses. A new study shows that infested tomato plants, in their efforts to fight off caterpillars, don't adapt well to rising temperatures. This double-edged sword worsens their productivity.

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Dozens of non-oncology drugs can kill cancer cells

Researchers tested approximately 4,518 drug compounds on 578 human cancer cell lines and found nearly 50 that have previously unrecognized anti-cancer activity. These drugs have been used to treat conditions such as diabetes, inflammation, alcoholism, and even arthritis in dogs. The findings suggest a possible way to accelerate the development of new cancer drugs or repurpose existing drugs to treat cancer.

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Monday 20 January 2020

Viral Video: आसमान से बिजली गिरने का दिल दहला देने वाला वीडियो, देखकर उड़ जाएंगे होश

आज हम आपके साथ बिजली गिरने का एक ऐसा वीडियो शेयर कर रहे हैं जिसे देखकर आपके होश उड़ जाएंगे।

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Sunday 19 January 2020

पत्नी की खातिर ने पति ने बनवा दिया विमान जैसा दिखने वाला घर, इस काम में बेटे ने भी दिया साथ

इश्क में लोग क्या कुछ नहीं करते। ऐसा ही एक मामला नाइजीरिया में देखने को मिला है जहां पत्नी की घूमने की ख्वाहिश पूरी करने के लिए विमान जैसा घर बनवा दिया है।

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Friday 17 January 2020

फ्लाइट में AC की हवा में जूता सूखा रहा था ये शख्स, वीडियो हुआ वायरल

सोशल मीडिया एक ऐसी दुनिया हैंजहां हर वक्त कुछ न कुछ वायरल होता रहता है। ऐसा ही एक वीडियो सोशल मीडिया पर छा रहा है जिसमें एक शख्स है फ्लाइट में एसी में जूता सूखा रहा है।

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Thursday 16 January 2020

Mosquitoes engineered to repel dengue virus

Scientists have synthetically engineered mosquitoes that halt the transmission of the dengue virus. Biologists developed a human antibody for dengue suppression in Aedes aegypti mosquitoes, the insects that spread dengue. The development marks the first engineered approach in mosquitoes that targets the four known types of dengue, improving upon previous designs that addressed single strains.

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'Living fossil' may upend basic tenet of evolutionary theory

A research team has discovered the first conclusive evidence that selection may also occur at the level of the epigenome -- a term that refers to an assortment of chemical 'annotations' to the genome that determine whether, when and to what extent genes are activated -- and has done so for tens of millions of years.

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Billions of quantum entangled electrons found in 'strange metal'

Physicists have observed quantum entanglement among 'billions of billions' of flowing electrons in a quantum critical material. The research provides the strongest direct evidence to date of entanglement's role in bringing about quantum criticality.

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Fossil is the oldest-known scorpion

Scientists studying fossils collected 35 years ago have identified them as the oldest-known scorpion species, a prehistoric animal from about 437 million years ago. The researchers found that the animal likely had the capacity to breathe in both ancient oceans and on land.

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In death of dinosaurs, it was all about the asteroid -- not volcanoes

Volcanic activity did not play a direct role in the mass extinction event that killed the dinosaurs, according to an international team of researchers. It was all about the asteroid.

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Scientists unexpectedly witness wolf puppies play fetch

When it comes to playing a game of fetch, many dogs are naturals. But now, researchers report that the remarkable ability to interpret human social communicative cues that enables a dog to go for a ball and then bring it back also exists in wolves.

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The mysterious, legendary giant squid's genome is revealed

Important clues about the anatomy and evolution of the mysterious giant squid (Architeuthis dux) are revealed through publication of its full genome sequence.

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Deep learning enables real-time imaging around corners

Researchers have harnessed the power of a type of artificial intelligence known as deep learning to create a new laser-based system that can image around corners in real time. With further development, the system might let self-driving cars 'look' around parked cars or busy intersections to see hazards or pedestrians.

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Scientists breach brain barriers to attack tumors

The brain is equipped with barriers designed to keep out dangerous pathogens. Researchers have now found a novel way to circumvent the brain's natural defenses when they're counterproductive.

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Wednesday 15 January 2020

Beauty sleep could be real, say body clock biologists

Biologists have explained for the first time why having a good night's sleep really could prepare us for the rigors of the day ahead.

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Taking the temperature of dark matter

Warm, cold, just right? Physicists are using gravitational lensing to take the temperature of dark matter, the mysterious substance that makes up about a quarter of our universe.

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Neanderthals went underwater for their tools

Neanderthals collected clam shells and volcanic rock from the beach and coastal waters of Italy during the Middle Paleolithic, according to a new study.

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Astronomers discover class of strange objects near our galaxy's enormous black hole

Astronomers have discovered a new class of bizarre objects at the center of our galaxy, not far from the supermassive black hole called Sagittarius A*.

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Tuesday 14 January 2020

Viral Video: कोबरा ने शिकार समझ निगल ली प्लास्टिक की बोतल, और फिर जान पर बन आई

Cobra Swallowed Plastic Bottle एक कोबरा के प्लास्टिक बोतल को निगल लेने का वीडियो सामने आया है जिसे देखकर आपको अंदाजा लग सकता है कि प्लास्टिक उसके जीवन के लिए कितना खतरनाक है।

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Monday 13 January 2020

Meteorite contains the oldest material on Earth: 7-billion-year-old stardust

Scientists have discovered the oldest solid material on Earth: 7-billion-year-old stardust trapped inside a meteorite. This stardust provides evidence for a 'baby boom' of new stars that formed 7 billion years ago, contrary to thinking that star formation happens at a steady, constant rate.

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Living robots built using frog cells

Scientists repurposed living frog cells -- and assembled them into entirely new life-forms. These tiny 'xenobots' can move toward a target and heal themselves after being cut. These novel living machines are neither a traditional robot nor a known species of animal. They're a new class of artifact: a living, programmable organism.

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How the solar system got its 'Great Divide,' and why it matters for life on Earth

Scientists have finally scaled the solar system's equivalent of the Rocky Mountain range.

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Tuning optical resonators gives researchers control over transparency

Using a nanoparticle as a 'tuning device,' researchers have devised a way to control electromagnetically induced transparency -- a feature of light which allows it to pass through opaque media.

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Scientists find oldest-known fossilized digestive tract -- 550 million years

An analysis of tubular fossils provides evidence of a 550-million-year-old digestive tract -- one of the oldest known examples of fossilized internal anatomical structures -- and reveals what scientists believe is a possible answer to the question of how these animals are connected.

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High temperatures due to global warming will be dramatic even for tardigrades

A research group has just shown that tardigrades are very vulnerable to long-term high temperature exposures. The tiny animals, in their desiccated state, are best known for their extraordinary tolerance to extreme environments.

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A replacement for exercise?

Researchers recently found that Sestrin, a naturally occurring protein in the body, mimicked the benefits of exercise in flies and mice.

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Molecular switch for repairing central nervous system disorders

A molecular switch has the ability to turn on a substance in animals that repairs neurological damage in disorders such as multiple sclerosis (MS), researchers have discovered. The early research in animal models could advance an already approved Food and Drug Administration therapy and also could lead to new strategies for treating diseases of the central nervous system.

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Baby and adult brains 'sync up' during play

A team of researchers has conducted the first study of how baby and adult brains interact during natural play, and they found measurable connections in their neural activity. In other words, baby and adult brain activity rose and fell together as they shared toys and eye contact.

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Thursday 9 January 2020

Adventure Biking: तेज रफ्तार बाइक सवार ने 'पहाड़' से लगाई छलांग, और फिर हुआ ऐसा

Adventure Biking बाइक से हवाई करतब का एक ऐसा वीडियो सोशल मीडिया पर शेयर किया जा रहा है जिसमें बाइक सवार ने तेज रफ्तार में पहाड़ से छलांग लगा दी।

from Jagran Hindi News - news:oddnews https://ift.tt/2sUF7Pt

African grey parrots spontaneously 'lend a wing'

People and other great apes are known for their willingness to help others in need, even strangers. Now, researchers have shown for the first time that some birds -- and specifically African grey parrots -- are similarly helpful.

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Pathways that extend lifespan by 500 percent identified

Scientists have identified synergistic cellular pathways for longevity that amplify lifespan fivefold in C. elegans, a nematode worm used as a model in aging research. The increase in lifespan would be the equivalent of a human living for 400 or 500 years, according to one of the scientists.

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Cancer mortality continues steady decline, driven by progress against lung cancer

The cancer death rate declined by 29 percent from 1991 to 2017, including a 2.2 percent drop from 2016 to 2017, the largest single-year drop in cancer mortality ever reported, according to the American Cancer Society's annual report on cancer rates and trends.

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Dog Wearing Helmet: बाइक पर हेलमेट पहनकर सवारी करते डॉगी का वीडियो वायरल, लोगों ने उठाए सवाल

Dog Wearing Helmet हेलमेट पहनकर बाइक की सवारी करते डॉगी का वीडियो इन दिनों सोशल मीडिया में वायरल हो रहा है।

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Tuesday 7 January 2020

Viral Video: मछली का शिकार करने वाला वीडियो हुआ वायरल, इस जीव को पहचानें

सोशल मीडिया पर एक जीव का मछली का शिकार करते हुए वीडियो वायरल हो रहा है जिसमें शिकार करने का अंदाज बेहद ही रोचक और निराला है।

from Jagran Hindi News - news:oddnews https://ift.tt/2N8pCu6

A fast radio burst tracked down to a nearby galaxy

Astronomers have pinpointed the location of a repeating fast radio burst. The breakthrough is only the second time that scientists have determined the precise location of a repeating source of these millisecond bursts of radio waves from space.

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Monday 6 January 2020

NASA planet hunter finds Earth-size habitable-zone world

NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, the range of distances where conditions may be just right to allow the presence of liquid water on the surface.

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Climate signals detected in global weather

Searched for and found: climate researchers can now detect the fingerprint of global warming in daily weather observations at the global scale. They are thus amending a long-established paradigm: weather is not climate -- but climate change can now be detected in daily weather.

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Animal life thriving around Fukushima

Nearly a decade after the nuclear accident in Fukushima, Japan, researchers have found that wildlife populations are abundant in areas void of human life.

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Astronomers find wandering massive black holes in dwarf galaxies

Studies with the VLA indicate that roughly half of the massive black holes in dwarf galaxies are not in the centers of those galaxies. This gives astronomers new insights into the conditions in which similar black holes formed and grew in the early history of the universe.

from All Top News -- ScienceDaily https://ift.tt/37AiIp4

Study finds dopamine, biological clock link to snacking, overeating and obesity

A new study finds that the pleasure center of the brain and the brain's biological clock are linked, and that high-calorie foods -- which bring pleasure -- disrupt normal feeding schedules, resulting in overconsumption.

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A close look at thin ice

Marrying theoretical work with experiments and high-tech imaging techniques, atmospheric chemists have identified a new way that ice grows in two dimensions.

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Researchers build a particle accelerator that fits on a chip

For the first time, scientists have created a silicon chip that can accelerate electrons -- albeit at a fraction of the velocity of the most massive accelerators -- using an infrared laser to deliver, in less than a hair's width, the sort of energy boost that takes microwaves many feet.

from All Top News -- ScienceDaily https://ift.tt/35pz6Hz

Researchers learn more about teen-age T. rex

A team studied two mid-sized tyrannosaur skeletons and concluded they were in fact teenage T. rex and not a new pygmy species. They also studied the interior of the leg bones to determine age and how the dinosaurs grew and matured.

from All Top News -- ScienceDaily https://ift.tt/37w6Q7A

How fish fins evolved just before the transition to land

Research on fossilized fish details the evolution of fins as they began to transition into limbs fit for walking on land.

from All Top News -- ScienceDaily https://ift.tt/35jgeK4

Research identifies changes in neural circuits underlying self-control during adolescence

Researchers applied tools from network science to identify how anatomical connections in the brain develop to support neural activity underlying executive function.

from All Top News -- ScienceDaily https://ift.tt/2ZNCBqa

Thursday 2 January 2020

OMG! आपने इससे पहले कभी देखा है इतना लंबा सांप? बताएं क्या है इसका नाम

Big Snake आपने अब तक कितना लंबा सांप देखा है? यह सवाल इसलिए है क्योंकि जो वीडियो आज आपसे शेयर करने जा रहे हैं वह एक विशाल सांप का है।

from Jagran Hindi News - news:oddnews https://ift.tt/2tkuTaM