|
 New portable tool analyzes microbes in the environment
Imagine a device that could swiftly analyze microbes in oceans and other aquatic environments, revealing the health of these organisms - too tiny to be seen by the naked eye - and their response to threats to their ecosystems. Researchers have created just such a tool, a portable device that could be used to assess microbes, screen for antibiotic-resistant bacteria and analyze algae that live in coral reefs.
|
|
|
New portable tool analyzes microbes in the environment
Imagine a device that could swiftly analyze microbes in oceans and other aquatic environments, revealing the health of these organisms - too tiny to be seen by the naked eye - and their response to threats to their ecosystems. Researchers have created just such a tool, a portable device that could be used to assess microbes, screen for antibiotic-resistant bacteria and analyze algae that live in coral reefs.
|
|
|
|
|
Security risk for e-scooters and riders
New research finds e-scooters have risks beyond the perils of potential collisions. Computer science experts have published the first review of the security and privacy risks posed by e-scooters and their related software services and applications.
|
|
|
|
|
|
 Docs Given Updated Opioid Prescribing Habit
Researchers dialed down the default number of opioids in two hospitals’ prescription systems—and doctors ended up prescribing fewer pills. Christopher Intagliata reports.
-- Read more on ScientificAmerican.com
|
|
|
|
|
Docs Given Updated Opioid Habit
Researchers dialed down the default number of opioids in two hospitals' prescription systems—and doctors ended up prescribing fewer pills. Christopher Intagliata reports.
-- Read more on ScientificAmerican.com
|
|
|
|
|
|
Security risk for e-scooters and riders
New research finds e-scooters have risks beyond the perils of potential collisions. Computer science experts have published the first review of the security and privacy risks posed by e-scooters and their related software services and applications.
|
|
|
Docs Given Updated Opioid Habit
Researchers dialed down the default number of opioids in two hospitals' prescription systems—and doctors ended up prescribing fewer pills. Christopher Intagliata reports.
-- Read more on ScientificAmerican.com
|
|
|
|
|
|
New stretchable battery can power wearable electronics
The adoption of wearable electronics has so far been limited by their need to derive power from bulky, rigid batteries that reduce comfort and may present safety hazards due to chemical leakage or combustion. Researchers have now developed a soft and stretchable battery that relies on a special type of plastic to store power more safely than the flammable formulations used in conventional batteries today.
|
|
|
New species of Allosaurus discovered in Utah
A remarkable new species of meat-eating dinosaur, Allosaurus jimmadseni, was just unveiled. The huge carnivore inhabited the flood plains of western North America during the Late Jurassic Period, between 157-152 million years ago, making it the geologically oldest species of Allosaurus, predating the more well-known state fossil of Utah, Allosaurus fragilis.
|
|
|
The highways of our brain
Researchers found that myelin, the sheath around neurons, creates a coaxial cable producing multiple waves of electrical potentials traveling in a more complicated manner than was envisioned earlier. These findings allow us to create better theories and tools to understand demyelinating diseases, including the most common neurological disorder, multiple sclerosis.
|
|
|
Increasing opportunities for sustainable behavior
To mitigate climate change and safeguard ecosystems, we need to make drastic changes in our consumption and transport behaviors. A new study shows how even minor changes to available infrastructure can trigger tipping points in the collective adoption of sustainable behaviors.
|
|
|
New species of Allosaurus discovered in Utah
A remarkable new species of meat-eating dinosaur, Allosaurus jimmadseni, was just unveiled. The huge carnivore inhabited the flood plains of western North America during the Late Jurassic Period, between 157-152 million years ago, making it the geologically oldest species of Allosaurus, predating the more well-known state fossil of Utah, Allosaurus fragilis.
|
|
|
|
|
A megalibrary of nanoparticles
Using straightforward chemistry and a mix-and-match, modular strategy, researchers have developed a simple approach that could produce over 65,000 different types of complex nanoparticles.
|
|
|
Marburg virus found in Sierra Leone bats
Scientists have detected Marburg virus in fruit bats in Sierra Leone, marking the first time the deadly virus has been found in West Africa. Eleven Egyptian rousette fruit bats tested positive for active Marburg virus infection. The presence of Marburg virus, a close relative to Ebola virus that also causes hemorrhagic disease in people, was detected in advance of any reported cases of human illness in Sierra Leone.
|
|
|
|
New stretchable battery can power wearable electronics
The adoption of wearable electronics has so far been limited by their need to derive power from bulky, rigid batteries that reduce comfort and may present safety hazards due to chemical leakage or combustion. Researchers have now developed a soft and stretchable battery that relies on a special type of plastic to store power more safely than the flammable formulations used in conventional batteries today.
|
|
|
|
Engineers examine lithium battery defects
Lithium dendrites cause poor performance and even explosions in batteries with flammable liquid electrolytes. How these dendrites grow, even with a solid electrolytes, is still a mystery, but materials engineers study the conditions that enable dendrites and how to stop them.
|
|
| | | |
|
|
|
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.
|
|
|
Engineers examine lithium battery defects
Lithium dendrites cause poor performance and even explosions in batteries with flammable liquid electrolytes. How these dendrites grow, even with a solid electrolytes, is still a mystery, but materials engineers study the conditions that enable dendrites and how to stop them.
|
|
|
|
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.
|
|
|
|
|
Chemicals in the environment: A focus on mixtures
The real world is marked by multiple stressors, among them cocktails of chemicals. The review article presents methodological approaches to isolating, characterizing and tracking chemicals of concern in complex mixtures. Techniques that combine chemical analysis and bioassays are most suited to this purpose.
|
|
|
|
|
|
|
Deciphering the sugar code
Like animals and humans, plants possess a kind of immune system. It can e.g. recognize pathogenic fungi by the chitin in their cell walls, triggering disease resistance. Some fungi hide from the immune system by modifying some of the chitin building blocks, converting chitin into chitosan. Researchers now found that plants can react to a certain pattern in this chitosan, stimulating their immune system.
|
|
|
Liver fibrosis 'off switch' discovered in mice
Researchers identified several genetic switches, or transcription factors, that determine whether or not liver cells produce collagen -- providing a new therapeutic target for liver fibrosis.
|
|
|
|
Large marine parks can save sharks from overfishing threat
'No-take' marine reserves -- where fishing is banned -- can reverse the decline in the world's coral reef shark populations caused by overfishing, according to a new study. But researchers found that existing marine reserves need to be much larger to be effective against overfishing.
|
|
|
|
|
|
Liver fibrosis 'off switch' discovered in mice
Researchers identified several genetic switches, or transcription factors, that determine whether or not liver cells produce collagen -- providing a new therapeutic target for liver fibrosis.
|
|
|
|
|
|
|
Increasing opportunities for sustainable behavior
To mitigate climate change and safeguard ecosystems, we need to make drastic changes in our consumption and transport behaviors. A new study shows how even minor changes to available infrastructure can trigger tipping points in the collective adoption of sustainable behaviors.
|
|
|
A megalibrary of nanoparticles
Using straightforward chemistry and a mix-and-match, modular strategy, researchers have developed a simple approach that could produce over 65,000 different types of complex nanoparticles.
|
|
|
|
Some Wolf Pups Show Innate Fetching Talent
Some wolf pups will play fetch with a stranger, suggesting that an ability to playfully interact with people could have come before, and played a role in, dog domestication.
-- Read more on ScientificAmerican.com
|
|
|
Deciphering the sugar code
Like animals and humans, plants possess a kind of immune system. It can e.g. recognize pathogenic fungi by the chitin in their cell walls, triggering disease resistance. Some fungi hide from the immune system by modifying some of the chitin building blocks, converting chitin into chitosan. Researchers now found that plants can react to a certain pattern in this chitosan, stimulating their immune system.
|
|
|
The highways of our brain
Researchers found that myelin, the sheath around neurons, creates a coaxial cable producing multiple waves of electrical potentials traveling in a more complicated manner than was envisioned earlier. These findings allow us to create better theories and tools to understand demyelinating diseases, including the most common neurological disorder, multiple sclerosis.
|
|
|
|
|
|
|
| | |
|
Chemicals in the environment: A focus on mixtures
The real world is marked by multiple stressors, among them cocktails of chemicals. The review article presents methodological approaches to isolating, characterizing and tracking chemicals of concern in complex mixtures. Techniques that combine chemical analysis and bioassays are most suited to this purpose.
|
|
|
Some Wolf Pups Show Innate Fetching Talent
Some wolf pups will play fetch with a stranger, suggesting that an ability to playfully interact with people could have come before, and played a role in, dog domestication.
-- Read more on ScientificAmerican.com
|
|
|
|
|
Large marine parks can save sharks from overfishing threat
'No-take' marine reserves -- where fishing is banned -- can reverse the decline in the world's coral reef shark populations caused by overfishing, according to a new study. But researchers found that existing marine reserves need to be much larger to be effective against overfishing.
|
|
|
|
|
Death on Mars
The martian radiation environment is a problem for human explorers that cannot be overstated
-- Read more on ScientificAmerican.com
|
|
|
|
Can lithium halt progression of Alzheimer's disease?
In a new study, a team of researchers has shown that, when given in a formulation that facilitates passage to the brain, lithium in doses up to 400 times lower than what is currently being prescribed for mood disorders is capable of both halting signs of advanced Alzheimer's pathology and of recovering lost cognitive abilities.
|
|
|
|
|
Why cells need acidic lysosomes
Little organs within cells called lysosomes digest unwanted material. And like stomachs, they must be acidic to do so. If they aren't, cells stop growing. Researchers wanted to know why.
|
|
|
|
|
Why eating yogurt may help lessen the risk of breast cancer
One of the causes of breast cancer may be inflammation triggered by harmful bacteria suggest researchers. Scientists advise consuming natural yogurt, which contains beneficial bacteria which dampens inflammation and which is similar to the bacteria found in breastfeeding mothers. Their suggestion is that this bacteria is protective because breast feeding reduces the risk of breast cancer. The consumption of yogurt is also associated with a reduction in the risk of breast cancer.
|
|
|
Death on Mars
The martian radiation environment is a problem for human explorers that cannot be overstated
-- Read more on ScientificAmerican.com
|
|
|
Dance of the honey bee reveals fondness for strawberries
Bees are pollinators of many plants, but their diversity and density is declining. A team investigated their foraging behavior in agricultural landscapes. They found that honey bees prefer strawberry fields, even if flowering next to oilseed rape fields. Only when oilseed rape was in full bloom were fewer honey bees in the strawberries. Wild bees, on the other hand, consistently chose the strawberry field.
|
|
|
Unravelling arthropod genomic diversity over 500 million years of evolution
The evolutionary innovations of insects and other arthropods are as numerous as they are wondrous, from terrifying fangs and stingers to exquisitely colored wings and ingenious feats of engineering. DNA sequencing allows us to chart the genomic blueprints underlying this incredible diversity that characterizes the arthropods and makes them the most successful group of animals on Earth.
|
|
|
|
Barred Owls Invade the Sierra Nevada
By listening to the sounds of the forest, biologists were able to identify an invasion of barred owls in spotted owl habitat. Christopher Intagliata reports.
-- Read more on ScientificAmerican.com
|
|
|
|
|
Barred Owls Invade the Sierra Nevada
By listening to the sounds of the forest, biologists were able to identify an invasion of barred owls in spotted owl habitat. Christopher Intagliata reports.
-- Read more on ScientificAmerican.com
|
|
|
|
|
|
Blue-emitting diode demonstrates limitations and promise of perovskite semiconductors
Halide perovskites have garnered attention because they're highly efficient at capturing energy in solar cells and efficient emitters in diodes. But researchers failed at making perovskite LEDs that emit blue light. Chemists succeeded, but X-ray studies of the LED's structure show that it's very sensitive to temperature, humidity and chemical environment. Hence environmental and chemical control is essential for stable operation. But these properties also allow for potentially broader use, such
|
|
|
'Jumping genes' help stabilize DNA folding patterns
The DNA molecule inside the nucleus of any human cell is more than six feet long. To fit into such a small space, it must fold into precise loops that also govern how genes are turned on or off. New research indicates that 'jumping genes' play a surprising role in stabilizing the 3D folding patterns of the DNA molecule inside the cell's nucleus.
|
|
|
Early life adversity and opioid addiction
Individuals with a history of early life adversity (ELA) are disproportionately prone to opioid addiction. A new study reveals why. The study examines how early adversities interact with factors such as increased access to opioids to directly influence brain development and function, causing a higher potential for opioid addiction.
|
|
|
|
|
:origin()/pre00/824d/th/pre/f/2018/080/9/6/no_lunch_break__page_106_by_kipteitei-dc6jyhd.jpg)
:origin()/pre05/d699/th/pre/i/2016/232/5/6/satsuki_kiryuin_klk__by_gtunver-daeoqej.jpg)
:origin()/pre00/d672/th/pre/i/2018/060/0/1/sunset_shimmer___forgotten_friendship__2__by_conikiblasu_fan-dc4mk3o.png){kind=spacer}
:origin()/pre00/cf3d/th/pre/f/2018/211/1/8/koyume_sequence_by_miramiraclerun-dcir929.png)
:origin()/pre00/7953/th/pre/f/2019/133/5/9/canyon_cedar_by_jonathanjessup-dd6u34y.jpg)
:origin()/pre00/dbd9/th/pre/f/2019/174/9/7/no_lunch_break__page_235_by_kipteitei-dda0ucv.jpg)
