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 Male sparrows are less intimidated by the songs of aging rivals
Few singers reach their sunset years with the same voice they had in younger days. Songbirds are no different. New research reveals that elderly swamp sparrows don't sound quite like they used to -- nor do they strike the same fear in other males who may be listening in. Humans are remarkably good at guessing a person's age by their voice. But this is the first time the phenomenon has been demonstrated in wild animals.
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Spider-Man-style robotic graspers defy gravity
Traditional methods of vacuum suction and previous vacuum suction devices cannot maintain suction on rough surfaces due to vacuum leakage, which leads to suction failure. Researchers have developed a zero-pressure difference method to enhance the development of vacuum suction units. Their method overcame leakage limitations by using a high-speed rotating water ring between the surface and suction cup to maintain the vacuum.
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Spider-Man-style robotic graspers defy gravity
Traditional methods of vacuum suction and previous vacuum suction devices cannot maintain suction on rough surfaces due to vacuum leakage, which leads to suction failure. Researchers have developed a zero-pressure difference method to enhance the development of vacuum suction units. Their method overcame leakage limitations by using a high-speed rotating water ring between the surface and suction cup to maintain the vacuum.
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Internet use reduces study skills in university students
Research has shown that students who use digital technology excessively are less motivated to engage with their studies, and are more anxious about tests. This effect was made worse by the increased feelings of loneliness that use of digital technology produced.
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Rich rewards: Scientists reveal ADHD medication's effect on the brain
Researchers have identified how certain areas of the human brain respond to methylphenidate -- a stimulant drug which is used to treat symptoms of ADHD. The work may help researchers understand the precise mechanism of the drug and ultimately develop more targeted medicines for the condition.
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 The Peril and Power of Following the Evidence
The author, a climate scientist, faced a political controversy, along with a personal crisis, more than two decades ago, bringing lessons that resonate today
-- Read more on ScientificAmerican.com
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How sensitive can a quantum detector be?
Measuring the energy of quantum states requires detecting energy changes so exceptionally small they are hard to pick out from background fluctuations, like using only a thermometer to try and work out if someone has blown out a candle in the room you're in. New research presents sensitive quantum thermometry hitting the bounds that nature allows.
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A Vision of Ephemeral Ice
Artist Shoshannah White views the endangered Arctic ice through a unique lens
-- Read more on ScientificAmerican.com
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Human fetal lungs harbor a microbiome signature
The lungs and placentas of fetuses in the womb -- as young as 11 weeks after conception -- already show a bacterial microbiome signature, which suggests that bacteria may colonize the lungs well before birth. This first-time finding deepens the mystery of how the microbes or microbial products reach those organs before birth and what role they play in normal lung and immune system development.
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Cheap drug may alleviate treatment-resistance in leukemia
A common and inexpensive drug may be used to counteract treatment resistance in patients with acute myeloid leukemia (AML), one of the most common forms of blood cancer. The researchers will now launch a clinical study to test the new combination treatment in patients.
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How sensitive can a quantum detector be?
Measuring the energy of quantum states requires detecting energy changes so exceptionally small they are hard to pick out from background fluctuations, like using only a thermometer to try and work out if someone has blown out a candle in the room you're in. New research presents sensitive quantum thermometry hitting the bounds that nature allows.
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Human fetal lungs harbor a microbiome signature
The lungs and placentas of fetuses in the womb -- as young as 11 weeks after conception -- already show a bacterial microbiome signature, which suggests that bacteria may colonize the lungs well before birth. This first-time finding deepens the mystery of how the microbes or microbial products reach those organs before birth and what role they play in normal lung and immune system development.
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The way you dance is unique, and computers can tell it's you
Nearly everyone responds to music with movement, whether through subtle toe-tapping or an all-out boogie. A recent discovery shows that our dance style is almost always the same, regardless of the type of music, and a computer can identify the dancer with astounding accuracy.
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The core of massive dying galaxies already formed 1.5 billion years after the Big Bang
The most distant dying galaxy discovered so far, more massive than our Milky Way -- with more than a trillion stars -- has revealed that the 'cores' of these systems had formed already 1.5 billion years after the Big Bang, about 1 billion years earlier than previous measurements revealed. The discovery will add to our knowledge on the formation of the Universe more generally, and may cause the computer models astronomers use, one of the most fundamental tools, to be revised.
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Self-assembled artificial microtubules developed
Simple LEGO bricks can be assembled to more complicated structures, which can be further associated into a wide variety of complex architectures, from automobiles, rockets, and ships to gigantic castles and amusement parks. Such an event of multi-step assembly, so-called 'hierarchical self-assembly', also happens in living organisms.
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Chemists allow boron atoms to migrate
Organic molecules with atoms of the semi-metal boron are important building blocks for synthesis products to produce drugs and agricultural chemicals. However, the conversion of substances commonly used in industry often results in the loss of the valuable boron unit, which can replace another atom in a molecule. Chemists now introduce carbon-carbon couplings in which the boron atom is retained.
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Rich rewards: Scientists reveal ADHD medication's effect on the brain
Researchers have identified how certain areas of the human brain respond to methylphenidate -- a stimulant drug which is used to treat symptoms of ADHD. The work may help researchers understand the precise mechanism of the drug and ultimately develop more targeted medicines for the condition.
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This Fish Knows How to Stick Around
The remora clings to other fish—and appears to use an unusual sense of touch to do so. Christopher Intagliata reports.
-- Read more on ScientificAmerican.com
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Chemists allow boron atoms to migrate
Organic molecules with atoms of the semi-metal boron are important building blocks for synthesis products to produce drugs and agricultural chemicals. However, the conversion of substances commonly used in industry often results in the loss of the valuable boron unit, which can replace another atom in a molecule. Chemists now introduce carbon-carbon couplings in which the boron atom is retained.
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Rethinking interactions with mental health patients
New research overturns the belief that people with severe mental illness are incapable of effective communication with their psychiatrist, and are able to work together with them to achieve better outcomes for themselves.
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Male sparrows are less intimidated by the songs of aging rivals
Few singers reach their sunset years with the same voice they had in younger days. Songbirds are no different. New research reveals that elderly swamp sparrows don't sound quite like they used to -- nor do they strike the same fear in other males who may be listening in. Humans are remarkably good at guessing a person's age by their voice. But this is the first time the phenomenon has been demonstrated in wild animals.
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Scientists measure the evolving energy of a solar flare's explosive first minutes
In 2017, a massive new region of magnetic field erupted on the sun's surface next to an existing sunspot. The powerful collision of magnetic energy produced a series of solar flares, causing turbulent space weather conditions at Earth. Scientists have now pinpointed for the first time exactly when and where the explosion released the energy that heated spewing plasma to energies equivalent to 1 billion degrees in temperature.
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Scientists measure the evolving energy of a solar flare's explosive first minutes
In 2017, a massive new region of magnetic field erupted on the sun's surface next to an existing sunspot. The powerful collision of magnetic energy produced a series of solar flares, causing turbulent space weather conditions at Earth. Scientists have now pinpointed for the first time exactly when and where the explosion released the energy that heated spewing plasma to energies equivalent to 1 billion degrees in temperature.
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The Peril and Power of Following the Evidence
The author, a climate scientist, faced a political controversy, along with a personal crisis, more than two decades ago, bringing lessons that resonate today
-- Read more on ScientificAmerican.com
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This Fish Knows How to Stick Around
The remora clings to other fish—and appears to use an unusual sense of touch to do so. Christopher Intagliata reports.
-- Read more on ScientificAmerican.com
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Here and gone: Outbound comets are likely of alien origin
Astronomers at the National Astronomical Observatory of Japan (NAOJ) have analyzed the paths of two objects heading out of the Solar System forever and determined that they also most likely originated from outside of the Solar System. These results improve our understanding of the outer Solar System and beyond.
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Is Eating Late Bad for Your Heart?
The American Heart Association suggests that late-night eating might increase your risk of heart disease. But how solid is the evidence?
-- Read more on ScientificAmerican.com
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Internet use reduces study skills in university students
Research has shown that students who use digital technology excessively are less motivated to engage with their studies, and are more anxious about tests. This effect was made worse by the increased feelings of loneliness that use of digital technology produced.
|
|
|
Cheap drug may alleviate treatment-resistance in leukemia
A common and inexpensive drug may be used to counteract treatment resistance in patients with acute myeloid leukemia (AML), one of the most common forms of blood cancer. The researchers will now launch a clinical study to test the new combination treatment in patients.
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Sanitary care by social ants shapes disease outcome
Sanitary care in ants to fight disease is known to improve the wellbeing of the colony, yet it has been unclear how social disease defense interferes with pathogen competition inside the individual host body. Biologists now revealed that collective care-giving has the power to bias the outcome of coinfections in fungus-exposed colony members.
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The core of massive dying galaxies already formed 1.5 billion years after the Big Bang
The most distant dying galaxy discovered so far, more massive than our Milky Way -- with more than a trillion stars -- has revealed that the 'cores' of these systems had formed already 1.5 billion years after the Big Bang, about 1 billion years earlier than previous measurements revealed. The discovery will add to our knowledge on the formation of the Universe more generally, and may cause the computer models astronomers use, one of the most fundamental tools, to be revised.
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Human ancestors may have eaten hard plant tissues without damaging teeth
Hard plant foods may have made up a larger part of early human ancestors' diet than currently presumed, according to a new experimental study of modern tooth enamel. The results have implications for reconstructing diet, and for our interpretation of the fossil record of human evolution, researchers said.
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Rethinking interactions with mental health patients
New research overturns the belief that people with severe mental illness are incapable of effective communication with their psychiatrist, and are able to work together with them to achieve better outcomes for themselves.
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The way you dance is unique, and computers can tell it's you
Nearly everyone responds to music with movement, whether through subtle toe-tapping or an all-out boogie. A recent discovery shows that our dance style is almost always the same, regardless of the type of music, and a computer can identify the dancer with astounding accuracy.
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Glimpse into ancient hunting strategies of dragonflies and damselflies
Dragonflies and damselflies are animals that may appear gentle but are, in fact, ancient hunters. The closely related insects shared an ancestor over 250 million years ago -- long before dinosaurs -- and provide a glimpse into how an ancient neural system controlled precise and swift aerial assaults.
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