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Science Daily: News Articles in Science, Health, Environment Technology

Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution -- the latest discoveries in astronomy, anthropology, biology, chemistry, climate environment, computers, engineering, health medicine, math, physics, psychology, technology, and more -- from the world's leading universities and research organizations. id=metasummary ScienceDaily -- the Internet's premier science news web site -- brings you the latest discoveries in science, health & medicine, the environment, space, technology, and computers, from the world's leading universities and research institutions. Updated several times a day, Science Daily also offers free search of its archive of more than 80,000 stories, as well as related articles, images, videos, books, and journal references in hundreds of different topics, including astronomy, biology, chemistry, engineering, geology, mathematics, physics, and more.



New insights into the relationship between how we feel and our views on aging  

A new study finds that the disconnect between how old we feel and how old we want to be can offer insights into the relationship between our views on aging and our health.

what do you think?

2021-07-27 21:24:01



Fruit fly offers lessons in good taste  

The fruit fly has multiple taste organs throughout its body to detect chemicals, called tastants, that signal whether a food is palatable or harmful. It is still unclear, however, how individual neurons in each taste organ act to control feeding. To explore this question, a team used the fly pharynx as a model to study whether taste information regulates sugar and amino acid consumption at the cellular level.

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2021-07-27 19:21:03



Under pressure, 'squishy' compound reacts in remarkable ways  

When a compound of manganese and sulfide (MnS2) is compressed in a diamond anvil, it transitions from an insulator into a metallic state and back into an insulator. This is accompanied by unprecedented decreases in resistance and volume across an extremely narrow range of pressure changes at room temperatue, say researchers.

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2021-07-27 19:18:52



Breakthrough research examines the effects introduced animals had on Madagascar's extinct megafauna  

Madagascar is renowned for its unique and varied biodiversity, which spans dry grasslands, wet rain forests, mangroves and deserts. This variety, combined with the island's isolation and size, has fostered distinctive assemblages of plants and animals, including the country's famous lemurs and baobab trees.

what do you think?

2021-07-27 19:12:17



Turning the molecular clock back on suppresses neuroblastoma tumor growth  

Researchers show that restoring normal function of the molecular clock suppresses tumor growth in advanced neuroblastoma and can make tumors more sensitive to conventional chemotherapy.

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2021-07-27 18:40:54



New strategy for drug design: Keeping copper atoms closer to keep bacteria away  

Hydrogen peroxide reacts with copper to produce hydroxyl radicals with strong antibacterial properties. However, this requires high copper concentrations because two copper atoms have to come close together, which occurs by chance. Now, scientists have engineered a long polymer with copper-containing side units that create regions with locally high copper density, boosting the antibacterial activity of hydrogen peroxide and paving the way to a new drug design concept.

what do you think?

2021-07-27 18:19:04



Genomic secrets of deep-sea tubeworm  

Researchers have decoded the chromosomal-level genome of a deep-sea gutless tubeworm and the genome of its co-living 'partner' -- a kind of bacteria that provide nutrients they generate from inorganic compounds to the worm for the first time, explaining how the pair adapts to the extreme habitat. Their discovery lays foundation for potential applications such as nutrient generation, biomaterial production and microbial growth control.

what do you think?

2021-07-27 17:19:12



Differences in financial risk preferences can make or break a marriage  

While it is well known that fighting over money can lead couples to divorce court, new research finds that differences in risk preferences, especially when it comes to financial matters, are likely a root cause of marital separation.

what do you think?

2021-07-27 15:45:43



Eating for hunger or pleasure? Regulating these feeding behaviors involves different brain circuits  

Researchers discovered that although the brain regulates feeding for pleasure and for hunger through serotonin-producing neurons in the midbrain, each type of feeding is wired by its own independent circuit that does not influence the other type of feeding.

what do you think?

2021-07-27 15:30:28



New approach for cell therapy shows potential against solid tumors with KRAS mutations  

A new technology for cellular immunotherapy showed promising anti-tumor activity in the lab against hard-to-treat cancers driven by the once-considered "undruggable" KRAS mutation, including lung, colorectal, and pancreatic.

what do you think?

2021-07-27 13:44:58



Bird's-eye view could be key to navigating without GPS  

A bird's-eye view may take on new meaning thanks to new research. Scientists found that a protein in bird's retinas is sensitive to the Earth's magnetic field thus guiding its migratory patterns. That finding could be key to Army navigation of both autonomous and manned vehicles where GPS is unavailable.

what do you think?

2021-07-27 13:40:34



Cultural biases impact native fish, too  

From art to religion to land use, much of what is deemed valuable in the United States was shaped centuries ago by the white male perspective. Fish, it turns out, are no exception. A study explores how colonialist attitudes toward native fishes were rooted in elements of racism and sexism. It describes how those attitudes continue to shape fisheries management today, often to the detriment of native fishes.

what do you think?

2021-07-27 13:38:10



Leader effectiveness may depend on emotional expression  

Women leaders must often battle sexist stereotypes that label them 'too emotional' for effective leadership. A surprising new study shows that when they express calm, happy emotions, however, women are perceived as more effective leaders than men. The effect is most pronounced for leaders in top positions in an organization.

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2021-07-27 13:19:47



On the hunt for 'hierarchical' black holes  

Black holes, detected by their gravitational wave signal as they collide with other black holes, could be the product of much earlier parent collisions. Such an event has only been hinted at so far, but scientists believe we are getting close to tracking down the first of these so-called 'hierarchical' black holes.

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2021-07-27 12:57:09



Wirelessly charging multiple devices simultaneously  

A new type of wireless charger can charge multiple devices simultaneously, researchers report. The device transfers energy with 90 percent efficiency within 20-centimeter charging range.

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2021-07-27 12:52:42



Black American women with vitamin D insufficiency more likely to test positive for COVID-19, study finds  

In a recent study of Black American women, low levels of vitamin D appeared to be related to increased incidence of COVID-19 infection.

what do you think?

2021-07-27 12:40:42



Selenium may support deep microbial life in Earth's continental crust  

International drilling efforts over the last decades into the seafloor have provided increasing evidence for the existence of an extensive deep biosphere below the seafloor. There, circulating fluids in the sub-seafloor deliver chemical compounds from which energy is produced to fuel microbial life in such deep ecosystems. Our understanding of the role of such chemolithotrophic microbes in the continental deep biosphere, however, is much more limited due to poor accessibility.

what do you think?

2021-07-27 12:31:02



Three dwarf spheroidal galaxies found to rotate  

Astrophysicists have discovered the presence of transverse rotation (in the plane of the sky) in three dwarf spheroidal galaxies, a very faint type of galaxies and difficult to observe, which are orbiting round the Milky Way; this helps to trace their evolutionary history.

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2021-07-27 12:04:36



DNA tags enable blood-based tests to assess cancer treatment outcomes  

Cell-free DNA (cfDNA) shed into the blood was discovered in the late 1940s but with rapid advances in genomics and computational analytics in just the past few years, researchers now believe that studying tags, or modifications to this type of DNA, may lead to a better understanding of how to assess, and possibly modulate, treatment approaches for cancer and other diseases.

what do you think?

2021-07-27 12:03:33



Scientists uncover how decisions about what we see are relayed back through the brain  

Researchers have discovered that decisions based on visual information, which involve a complex stream of data flowing forward and backwards along the brain's visual pathways, is broadcast widely to neurons in the visual system, including to those that are not being used to make the decision.

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2021-07-27 11:55:03



New breakthrough to help immune systems in the fight against cancer  

New research has identified potential treatment that could improve the human immune system's ability to search out and destroy cancer cells within the body. Scientists have identified a way to restrict the activity of a group of cells which regulate the immune system, which in turn can unleash other immune cells to attack tumours in cancer patients.

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2021-07-27 11:46:19



Emphasize personal health benefits of COVID-19 vaccination, experts say  

Several forms of public messages can increase vaccination intentions, but messaging that emphasizes personal health benefits has the largest impact.

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2021-07-27 11:21:17



Researchers demonstrate technique for recycling nanowires in electronics  

Researchers have demonstrated a low-cost technique for retrieving nanowires from electronic devices that have reached the end of their utility and then using those nanowires in new devices. The work is a step toward more sustainable electronics.

what do you think?

2021-07-27 11:21:14



Measuring creativity, one word at a time  

Can you think of three words that are completely unrelated to one another? What about four, five, or even ten? According to researchers, this simple exercise of naming unrelated words and then measuring the semantic distance between them could serve as an objective measure of creativity.

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2021-07-27 11:08:20



Using silicone wristbands to measure air quality  

Inexpensive and convenient devices such as silicone wristbands can be used to yield quantitative air quality data, which is particularly appealing for periods of susceptibility such as pregnancy.

what do you think?

2021-07-27 08:59:49



Early signs: Perceptual distortions in late-teens predict psychotic symptoms in mid-life  

Subtle differences in perception during late-teen years can predict the development of hallucinations, delusions, and, in some instances, psychosis later in life, according to new research.

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2021-07-27 08:58:45



Turning diapers into sticky notes: Using chemical recycling to prevent millions of tons of waste  

Every year, 3.5 million metric tons of sodden diapers end up in landfills.

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2021-07-27 08:38:07



Global dementia cases forecasted to triple by 2050  

Positive trends in global education access are expected to decrease dementia prevalence worldwide by 6.2 million cases by the year 2050. Meanwhile, anticipated trends in smoking, high body mass index and high blood sugar are predicted to increase prevalence by nearly the same number: 6.8 million cases.

what do you think?

2021-07-27 08:37:59



Magnetic 'balding' of black holes saves general relativity prediction  

Magnetic fields around black holes decay quickly, researchers report. This finding backs up the so-called 'no-hair conjecture' predicted by Einstein's general relativity.

what do you think?

2021-07-27 08:16:11



Body size, digestive systems shape ungulate foraging  

Smaller-bodied ruminants forage primarily for the highest energy intake, while equids -- which tend to be larger -- choose to forage in areas close to surface water, with less attention to forage condition.

what do you think?

2021-07-27 06:55:53



Patients report long-term favorable effects of weight loss surgery in their daily lives  

A new study shows that over the course of five years, patients who had bariatric and metabolic surgery to treat uncontrolled type 2 diabetes reported greater physical health, more energy, less body pain, and less negative effects of diabetes in their daily lives, compared with patients who had medical therapy alone for their diabetes.

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2021-07-27 05:31:55



Model can predict how drug interactions influence antibiotic resistance  

A model using simple changes in microbe growth curves could predict how drug resistance evolves in response to different antibiotic combinations, doses and sequences.

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2021-07-27 04:47:23



Possible future for Western wildfires: Decade-long burst, followed by gradual decline  

A model of the eastern California forests of the Sierra Nevada looks at the longer-term future of wildfires under future climate change scenarios. Results show an initial roughly decade-long burst of wildfire activity, followed by recurring fires of decreasing area -- a pattern that could apply to other hot, dry forests in the West.

what do you think?

2021-07-27 03:52:03



More than just walking: A new role for core brain region  

For decades, a key brain area has been thought to merely regulate locomotion. Now, a research group has shown that the region is involved in much more than walking, as it contains distinct populations of neurons that control different body movements. The findings could help to improve certain therapies for Parkinson's disease.

what do you think?

2021-07-27 03:39:51



T cell response not critical for immune memory to SARS-CoV-2 or recovery from COVID-19, study finds  

New research conducted in monkeys reveals that T cells are not critical for the recovery of primates from acute COVID-19 infections.

what do you think?

2021-07-27 03:05:43



A naturally inspired, reusable system that purifies water and builds itself  

In nature, the interaction of molecules at the boundary of different liquids can give rise to new structures. These self-assembling molecules make cell formation possible and are instrumental to the development of all life on Earth. They can also be engineered to perform specific functions -- and now, a team of researchers has leveraged this opportunity to develop a material that could remove persistent pollutants from water.

what do you think?

2021-07-27 03:03:52



Bushfires, not pandemic lockdowns, had biggest impact on global climate in 2020  

The devastating bushfires in Australia had a larger impact on the world's 2020 climate than the pandemic-related lockdowns, as plumes of smoke cooled global temperatures and pushed tropical thunderstorms northward. New research indicates that regional wildfires can have far-reaching climatic effects that are comparable to a major volcanic eruption.

what do you think?

2021-07-27 02:30:19



Scientists discover early signs of frontotemporal dementia in personalized cerebral organoids  

Frontotemporal dementias are a group of fatal and debilitating brain disorders for which there are no cures. Researchers describe how they were able to recreate much of the damage seen in a widely studied form of the disease by growing special types of cerebral organoids in petri dishes. This form of the disease is caused by a genetic mutation in tau, a protein that is a hallmark of Alzheimer's disease and other dementias. By studying these organoids, the scientists discovered how the mutated ta

what do you think?

2021-07-27 02:28:09



Study shows why beer mats do not fly in a straight line  

Anyone who has ever failed to throw a beer mat into a hat should take note: physicists have discovered why this task is so difficult. However, their study also suggests how to significantly increase accuracy and range.

what do you think?

2021-07-27 02:26:58



New tests can detect tiny but toxic particles of coal ash in soil  

Scientists have developed tests sensitive enough to detect and measure microscopic particles of coal ash in soil, even at concentrations so low and sizes so small that other tests would likely miss them. The four new tests complement tests previously developed at Duke to detect coal ash contamination in water and larger particles of coal ash in soil.

what do you think?

2021-07-27 01:43:27



No more finger pricks: A continuous glucose monitor benefits patients with diabetes in more ways than one  

A 15-center study of 175 patients with poorly controlled type 2 diabetes found that continuous glucose monitoring, compared to blood glucose meter monitoring, or finger pricking, significantly decreased their hemoglobin A1C over eight months.

what do you think?

2021-07-26 19:45:07



Meeting global climate targets will lead to 8 million more energy jobs worldwide by 2050  

Researchers created a global dataset of job footprints in 50 countries and used a model to investigate how trying to meet the Paris Agreement global climate target of staying well below 2°C would affect energy sector jobs. They found that action to reach said target would increase net jobs by about 8 million by 2050, primarily due to gains in the solar and wind industries.

what do you think?

2021-07-26 13:48:18



Scientists model 'true prevalence' of COVID-19 throughout pandemic  

Scientists have developed a statistical framework that incorporates key COVID-19 data -- such as case counts and deaths due to COVID-19 -- to model the true prevalence of this disease in the United States and individual states. Their approach projects that in the U.S. as many as 60 percent of COVID-19 cases went undetected as of March 7, 2021, the last date for which the dataset they employed is available.

what do you think?

2021-07-26 13:38:24



Hubble finds evidence of water vapor at Jupiter's moon Ganymede  

Astronomers have uncovered evidence of water vapor in the atmosphere of Jupiter's moon Ganymede. This water vapor forms when ice from the moon's surface sublimates -- that is, turns from solid to gas. Astronomers re-examined Hubble observations from the last two decades to find this evidence of water vapor.

what do you think?

2021-07-26 13:07:44



Extreme heat, dry summers main cause of tree death in Colorado's subalpine forests  

Even in the absence of bark beetle outbreaks and wildfire, trees in Colorado subalpine forests are dying at increasing rates from warmer and drier summer conditions, found recent research.

what do you think?

2021-07-26 12:33:03



Two types of blood pressure meds prevent heart events equally, but side effects differ  

In an analysis of almost 3 million patients taking a single high blood pressure medication for the first time, angiotensin receptor blockers (ARBs) were as good as angiotensin-converting enzyme (ACE) inhibitors at preventing cardiovascular events linked to hypertension, including heart attack, stroke and heart failure. 51 possible side effects and safety concerns were examined: The patients taking ARBs were found to be significantly less likely to develop tissue swelling, cough, pancreas inflamm

what do you think?

2021-07-26 10:48:44



Second COVID-19 mRNA vaccine dose found safe following allergic reactions to first dose  

A new study reports that among individuals who had an allergic reaction to their first mRNA COVID-19 vaccine dose, all who went on to receive a second dose tolerated it. Even some who experienced anaphylaxis following the first dose tolerated the second dose.

what do you think?

2021-07-26 08:31:32



Juicy past of favorite Okinawan fruit revealed  

A genetic analysis of fruit in the mandarin family has unraveled a complex journey from the mountainous region of southern China to the markets of Okinawa.

what do you think?

2021-07-26 07:13:14



What happens to marine life when oxygen is scarce?  

In September of 2017, marine biologists were conducting an experiment in Bocas del Toro, off the Caribbean coast of Panama. After sitting on a quiet, warm open ocean, they snorkeled down to find a peculiar layer of murky, foul-smelling water about 10 feet below the surface, with brittle stars and sea urchins, which are usually in hiding, perching on the tops of coral. This observation prompted a collaborative study analyzing what this foggy water layer is caused by, and the impact it has on life

what do you think?

2021-07-26 06:58:07



Plant root-associated bacteria preferentially colonize their native host-plant roots  

Researchers have discovered that bacteria from the plant microbiota are adapted to their host species. They show how root-associated bacteria have a competitive advantage when colonizing their native host, which allows them to invade an already established microbiota.

what do you think?

2021-07-26 06:44:51



Supernova's 'fizzled' gamma-ray burst  

On Aug. 26, 2020, NASA's Fermi Gamma-ray Space Telescope detected a pulse of high-energy radiation that had been racing toward Earth for nearly half the present age of the universe. Lasting only about a second, it turned out to be one for the record books -- the shortest gamma-ray burst (GRB) caused by the death of a massive star ever seen.

what do you think?

2021-07-26 03:20:19



Brain's 'memory center' needed to recognize image sequences but not single sights  

The visual cortex stores and remembers individual images, but when they are grouped into a sequence, mice can't recognize that without guidance from the hippocampus, according to a new study.

what do you think?

2021-07-26 03:04:53



Improving air quality reduces dementia risk, multiple studies suggest  

Improving air quality may improve cognitive function and reduce dementia risk, according to several recent studies.

what do you think?

2021-07-26 01:39:06



Function of sex chromosomes in turtles  

A new study sheds light on how organisms have evolved to address imbalances in sex chromosomes. The study looks at a species of softshell turtle, but the results could help to illuminate an important evolutionary process in many species. The research centers on a process known as sex chromosome dosage compensation.

what do you think?

2021-07-26 01:10:47



New organ-on-a-chip finds crucial interaction between blood, ovarian cancer tumors  

Researchers are pushing organ-on-a-chip devices to new levels that could change the way clinicians approach cancer treatment, particularly ovarian cancer.

what do you think?

2021-07-25 18:45:22



Comprehensive clinical sequencing opens door to the promise of precision medicine  

A new study highlights the power of comprehensive whole genome, whole exome and RNA sequencing to better understand and treat each patient's cancer.

what do you think?

2021-07-25 14:28:26



New understanding of cell stability with potential to improve immune cell therapies  

Researchers have developed two solutions with potential to overcome a key clinical limitation of immune cell therapies.

what do you think?

2021-07-25 11:31:04



Bio-based coating for wood outperforms traditional synthetic options  

Researchers have used lignin, a natural polymer abundant in wood and other plant sources, to create a safe, low-cost and high-performing coating for use in construction. As there is a global urge to meet the rising sustainability standards, this new coating has great potential to protect wood, whose use in construction is continually increasing. The new coating is non-toxic, hydrofobic, it retains wood's breathability and natural roughness while being resistant to color changes and abrasion.

what do you think?

2021-07-23 18:07:03



'Feel good' brain messenger can be willfully controlled, new study reveals  

Researchers have discovered that spontaneous impulses of dopamine, the neurological messenger known as the brain's 'feel good' chemical, occur in the brain of mice. The study found that mice can willfully manipulate these random dopamine pulses for reward.

what do you think?

2021-07-23 17:46:30



Neuroscientists posit that brain region is a key locus of learning  

Long thought of as a generic alarm system, the locus coeruleus may actually be a sophisticated regulator of learning and behavior, according to a new review.

what do you think?

2021-07-23 15:48:59



Why four-legged animals are better sprinters  

Scientists have studied the characteristics determining the maximum running speed in animals. The model they developed explains why humans cannot keep up with the fastest sprinters in the animal kingdom. Based on these calculations, the giant spider Shelob from 'The Lord of the Rings' would have reached a maximum speed of 60 km/h.

what do you think?

2021-07-23 14:24:05



Americans with higher net worth at midlife tend to live longer  

In a wealth and longevity study to incorporate siblings and twin pair data, researchers analyzed the midlife net worth of adults (mean age 46.7 years) and their mortality rates 24 years later. They discovered those with greater wealth at midlife tended to live longer.

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2021-07-23 12:45:10



Water resources: Defusing conflict, promoting cooperation  

Researchers have developed a methodology for avoiding conflicts of use in transboundary rivers. The model-based procedure allows for participatory planning and cooperative management of water resources.

what do you think?

2021-07-23 12:29:45



What does a virtual roller coaster ride tell us about migraine?  

When experiencing the ups and downs of a virtual roller coaster ride, people who get migraine headaches reported more dizziness and motion sickness than people who do not get migraines, according to a new study.

what do you think?

2021-07-23 12:18:52



Better healthcare management can reduce the risk of delirium among older adults  

New research by an Executive PhD Research student at the Business School (formerly Cass) outlines how elderly patients with neurological conditions are significantly more likely to develop delirium shortly after they are hospitalised, and those admitted on Sunday and Tuesday are more likely to develop the disorder.

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2021-07-23 12:17:43



Advantages of intranasal vaccination against SARS-CoV-2  

There are many reasons that an intranasal vaccine against the SARS-CoV-2 virus would be helpful in the fight against COVID-19 infections, immunologists write in a new article.

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2021-07-23 11:52:51



Brain-repair discovery could lead to new epilepsy treatments  

Researchers have discovered a previously unknown repair process in the brain that they hope could be harnessed and enhanced to treat seizure-related brain injuries.

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2021-07-23 10:26:04



The impact of climate change on Kenya's Tana river basin  

Many species within Kenya's Tana River Basin will be unable to survive if global temperatures continue to rise as they are on track to do - according to new research. A new study outlines how remaining within the goals of the Paris Agreement would save many species. The research also identifies places that could be restored to better protect biodiversity and contribute towards global ecosystem restoration targets.

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2021-07-23 10:08:25



Blushing plants reveal when fungi are growing in their roots  

Scientists have created plants whose cells and tissues 'blush' with beetroot pigments when they are colonized by fungi that help them take up nutrients from the soil. This is the first time this vital, 400 million year old process has been visualized in real time in full root systems of living plants. Understanding the dynamics of plant colonisation by fungi could help to make food production more sustainable in the future.

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2021-07-23 09:59:08



DeepMind and EMBL release the most complete database of predicted 3D structures of human proteins  

DeepMind is partnering with EMBL to make the most complete and accurate database yet of the predicted human protein structures freely and openly available to the scientific community. The AlphaFold Protein Structure Database will enable research that advances understanding of these building blocks of life, accelerating research across a variety of fields. AlphaFold's impact is already being realized by early partners researching neglected diseases, studying antibiotic resistance, and recycling s

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2021-07-23 09:09:42



Scientists identify five new plant species in Bolivia  

Scientists have identified five new plant species in the Bolivian Andes. The species are all part of the genus Jacquemontia, which are twining or trailing plants with pretty blue flowers.

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2021-07-23 09:01:58



Alpha variant of COVID-19 spread via 'super-seeding' event in UK, research finds  

The rapid spread of the Alpha variant of COVID-19 in the UK resulted from biological changes in the virus and was enhanced by large numbers of infected people 'exporting' the variant around the country, in what the researchers call a 'super-seeding' event.

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2021-07-23 06:22:30



How the brain paints the beauty of a landscape  

Researchers investigate how our brains proceed from merely seeing a landscape to feeling its aesthetic impact.

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2021-07-23 05:57:42



Reverse optogenetic tool developed  

A new optogenetic tool, a protein that can be controlled by light, has been characterized by researchers. They used an opsin -- a protein that occurs in the brain and eyes -- from zebrafish and introduced it into the brain of mice. Unlike other optogenetic tools, this opsin is not switched on but rather switched off by light. Experiments also showed that the tool could be suitable for investigating changes in the brain that are responsible for the development of epilepsy.

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2021-07-23 05:52:41



Excess coffee: A bitter brew for brain health  

It's a favourite first-order for the day, but while a quick coffee may perk us up, new research shows that too much could be dragging us down, especially when it comes to brain health.

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2021-07-23 05:35:10



Less-sensitive COVID-19 tests may still achieve optimal results if enough people tested, study finds  

A computational analysis of COVID-19 tests suggests that, in order to minimize the number of infections in a population, the amount of testing matters more than the sensitivity of the tests that are used.

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2021-07-23 05:34:14



New approach eradicates breast cancer in mice  

A new approach to treating breast cancer kills 95 to 100 percent of cancer cells in mouse models of human estrogen-receptor-positive breast cancers and their metastases in bone, brain, liver and lungs. The newly developed drug, called ErSO, quickly shrinks even large tumors to undetectable levels.

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2021-07-23 05:06:47



New 3D images of shark intestines show they function like Nikola Tesla's valve  

For more than a century, researchers have relied on flat sketches of sharks' digestive systems to discern how they function -- and how what they eat and excrete impacts other species in the ocean. Now, researchers have produced a series of high-resolution, 3D scans of intestines from nearly three dozen shark species that will advance the understanding of how sharks eat and digest their food.

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2021-07-23 04:54:35



New measure of tropical forest vulnerability to help avoid 'tipping point'  

Humid tropical forests, vital in global efforts to limit rising temperatures, are under threat as a result of changes in land use and climate. Now, researchers have developed a new way to keep tabs on the vulnerability of these forests on a global scale using satellite data called the tropical forest vulnerability index (TFVI).

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2021-07-23 04:24:27



Scientists discover gene therapy provides neuroprotection to prevent glaucoma vision loss  

A form of gene therapy protects optic nerve cells and preserves vision in mouse models of glaucoma, according to new research. The findings suggest a way forward for developing neuroprotective therapies for glaucoma, a leading cause of visual impairment and blindness.

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2021-07-23 04:21:38



Topology in biology  

A phenomenon known from quantum systems could now make its way into biology: Researchers show that the notion of topological protection can also apply to biochemical networks. The model which the scientists developed makes the topological toolbox, typically used only to describe quantum systems, now also available to biology.

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2021-07-23 04:18:31



Geneticists pinpoint how a mutation causes devastating childhood cancer and successfully target tumor cells with tailored drug  

Geneticists have discovered how a specific genetic mutation (H3K27M) causes a devastating, incurable childhood cancer, known as diffuse midline glioma (DMG), and -- in lab studies working with model cell types -- successfully reverse its effects to slow cancer cell growth with a targeted drug. Their landmark work translates crucial new understanding of the genetics of DMG progression into a highly promising, targeted therapeutic approach and offers significant hope of improved treatments in the

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2021-07-23 03:30:03



Global warming may limit spread of dengue fever, new research finds  

Infection with dengue virus makes mosquitoes more sensitive to warmer temperatures, according to new research. The team also found that infection with the bacterium Wolbachia, which has recently been used to control viral infections in mosquitoes, also increases the thermal sensitivity of the insects. The findings suggest that global warming could limit the spread of dengue fever but could also limit the effectiveness of Wolbachia as a biological control agent.

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2021-07-23 03:27:58



New insights into immune responses to malaria  

Advanced technologies have been used to solve a long-standing mystery about why some people develop serious illness when they are infected with the malaria parasite, while others carry the infection asymptomatically.

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2021-07-23 03:05:51



Wearable devices can reduce collision risk in blind and visually impaired people  

A new randomized controlled trial shows wearing a vibrating collision device can reduce collisions in people who are blind and visually impaired, adding a potential new tool that can be used by these populations in addition to a long cane, to ensure independent travel safety.

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2021-07-23 02:44:02



Soft skin patch could provide early warning for strokes, heart attacks  

Engineers developed a soft, stretchy ultrasound patch that can be worn on the skin to monitor blood flow through vessels deep inside the body. Such a device can make it easier to detect cardiovascular problems, like blockages in the arteries that could lead to strokes or heart attacks.

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2021-07-23 02:24:16



Potential role of 'junk DNA' sequence in aging, cancer  

Researchers have recently identified a DNA region known as VNTR2-1 that appears to drive the activity of the telomerase gene, which has been shown to prevent aging in certain types of cells. Knowing how the telomerase gene is regulated and activated and why it is only active in certain cell types could someday be the key to understanding how humans age and how to stop the spread of cancer.

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2021-07-23 01:56:36



Cascaded metasurfaces for dynamic control of THz wavefronts  

Researchers have developed a general framework and metadevices for achieving dynamic control of THz wavefronts. Instead of locally controlling the individual meta-atoms in a THz metasurface (e.g., via PIN diode, varactor, etc.), they vary the polarization of a light beam with rotating multilayer cascaded metasurfaces.

what do you think?

2021-07-23 01:52:15



'Missing self' contributes to organ rejection after transplantation  

After kidney transplantation, natural killer cells of the recipient become active because they miss 'self' proteins on donor cells. These cells contribute to organ rejection, in addition to traditional modes of rejection involving T cells and antibodies.

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2021-07-23 01:48:35



Untwisting DNA reveals new force that shapes genomes  

Advances in microscopy reveal how the human genome organises itself in three-dimensional space at much higher resolution than previously possible. A new study finds that transcription generates a force that moves across DNA strands like ripples through water. The discovery may have future implications for the understanding of genetic diseases such as Cornelia de Lange syndrome, developmental disorders linked to chromatin folding, and open new avenues of research in genome fragility and cancer de

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2021-07-23 01:45:24



Research 'final nail in the coffin' of Paranthropus as hard object feeders  

New research debunks a long-held belief about our ancestors' eating habits.

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2021-07-23 01:41:17



Researchers develop tool to drastically speed up the study of enzymes  

A new tool that enables thousands of tiny experiments to run simultaneously on a single polymer chip will let scientists study enzymes faster and more comprehensively than ever before.

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2021-07-22 21:50:16



Scientists make X-ray vision-like camera to rapidly retrieve 3D images  

Researchers describe a new type of camera technology that, when aimed at an object, can rapidly retrieve 3D images, displaying its chemical content down to the micrometer scale.

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2021-07-22 21:41:31



Fully renewable energy feasible for Samoa, study suggests  

The future of Samoa's electricity system could go green, a new study has shown.

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2021-07-22 21:15:17



Mobility restrictions can have unexpected impacts on air quality  

Reduced mobility induced by the COVID-19 restrictions had only minor influence on particulate pollution levels, according to atmosphere studies in the Po Valley region of northern Italy. Eventually computer simulations indicated that the change in air quality led to an increase in secondary aerosol formation.

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2021-07-22 21:13:10



'Backpacking' hedgehogs take permanent staycation  

New research has been examining how alpine-based hedgehogs hibernate from a different perspective - their backs.

what do you think?

2021-07-22 21:02:13



Study finds calcium precisely directs blood flow in the brain  

Researchers have shown how the brain communicates to blood vessels when in need of energy, and how these blood vessels respond by relaxing or constricting to direct blood flow to specific brain regions.

what do you think?

2021-07-22 20:29:33



'Good cholesterol' may protect liver  

The body's so-called good cholesterol may be even better than we realize. New research suggests that one type of high-density lipoprotein (HDL) has a previously unknown role in protecting the liver from injury. This HDL protects the liver by blocking inflammatory signals produced by common gut bacteria.

what do you think?

2021-07-22 20:22:57



Investigational magnetic device shrinks glioblastoma in human test  

Researchers shrunk a deadly glioblastoma tumor by more than a third using a helmet generating a noninvasive oscillating magnetic field that the patient wore on his head while administering the therapy in his own home. The 53-year-old patient died from an unrelated injury about a month into the treatment, but during that short time, 31% of the tumor mass disappeared. The autopsy of his brain confirmed the rapid response to the treatment.

what do you think?

2021-07-22 19:43:56



California's carbon mitigation efforts may be thwarted by climate change itself  

To meet an ambitious goal of carbon neutrality by 2045, California's policymakers are relying in part on forests and shrublands to remove CO2 from the atmosphere, but researchers warn that future climate change may limit the ecosystem's ability to perform this service.

what do you think?

2021-07-22 19:34:16






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