A newly discovered prehistoric mammal may hold clues to how life survived the dinosaur-killing extinction. The tiny species, Cimolodon desos
A newly discovered prehistoric mammal may hold clues to how life survived the dinosaur-killing extinction. The tiny species, Cimolodon desosai, lived 75 million years ago and had traits—like a small body and varied diet—that likely boosted survival odds. Found in Baja California, the fossil includes rare skeletal remains that reveal how it moved and lived. Researchers believe its lineage helped mammals endure one of Earth’s deadliest events.
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Scientists are making a major leap toward freezing organs for future use without damaging them. A new study reveals that one of the biggest
Scientists are making a major leap toward freezing organs for future use without damaging them. A new study reveals that one of the biggest obstacles—cracking during ultra-cold preservation—can be reduced by carefully tuning the temperature at which tissues enter a glass-like state. This breakthrough builds on recent successes in cryopreserved organ transplants and could bring the long-imagined idea of “banking” organs for later use much closer to reality.
Uncovering the Shocking Truth: Natural Disasters News -- ScienceDaily Exposed
Introduction to the Unpredictable World of Natural DisastersWait till you hear this - the world of natural disasters is more complex and devastating than you ever imagined. Natural Disasters News -- ScienceDaily is your go-to source for the latest research and updates on earthquakes, volcanic eruptions, landslides, tsunamis, and other catastrophic events. Did you know that around a third of economic losses between 1900 and 2015 have been caused by floods, while earthquakes have caused around 26 percent of losses, and storms have also taken a significant toll?The Alarming Rate of Natural DisastersHere's the crazy thing - the frequency and severity of natural disasters are increasing at an alarming rate. According to recent studies, large floods have been associated with up to 24.9 percent higher death rates from major mortality causes in the U.S. compared to other times. This is a stark reminder of the importance of staying informed and up-to-date on the latest natural disaster news and...
Compared to robots, human bodies are flexible, capable of fine movements, and can convert energy efficiently into movement. Drawing inspirat
Compared to robots, human bodies are flexible, capable of fine movements, and can convert energy efficiently into movement. Drawing inspiration from human gait, researchers from Japan crafted a two-legged biohybrid robot by combining muscle tissues and artificial materials. Publishing on January 26 in the journal Matter, this method allows the robot to walk and pivot."
Research on biohybrid robots, which are a fusion of biology and mechanics, is recently attracting attention as a new field of robotics featuring biological function," says corresponding author Shoji Takeuchi of the University of Tokyo, Japan
"Using muscle as actuators allows us to build a compact robot and achieve efficient, silent movements with a soft touch."The research team's two-legged robot, an innovative bipedal design, builds on the legacy of biohybrid robots that take advantage of muscles.
Muscle tissues have driven biohybrid robots to crawl and swim straight forward and make turns -- but not sharp ones.
Yet, being able to pivot and make sharp turns is an essential feature for robots to avoid obstacles.
To build a nimbler robot with fine and delicate movements, the researchers designed a biohybrid robot that mimics human gait and operates in water.
The robot has a foam buoy top and weighted legs to help it stand straight underwater.
The skeleton of the robot is mainly made from silicone rubber that can bend and flex to conform to muscle movements.
The researchers then attached strips of lab-grown skeletal muscle tissues to the silicone rubber and each leg.
When the researchers zapped the muscle tissue with electricity, the muscle contracted, lifting the leg up. The heel of the leg then landed forward when the electricity dissipated.
By alternating the electric stimulation between the left and right leg every 5 seconds, the biohybrid robot successfully "walked" at the speed of 5.4 mm/min (0.002 mph). To turn, researchers repeatedly zapped the right leg every 5 seconds while the left leg served as an anchor.
The robot made a 90-degree left turn in 62 seconds. The findings showed that the muscle-driven bipedal robot can walk, stop, and make fine-tuned turning motions.
"Currently, we are manually moving a pair of electrodes to apply an electric field individually to the legs, which takes time," says Takeuchi.
"In the future, by integrating the electrodes into the robot, we expect to increase the speed more efficiently."
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Scientists have developed 'supramolecular ink,' a new 3D-printable OLED (organic light-emitting diode) material made of inexpensive, Earth-a
Scientists have developed 'supramolecular ink,' a new 3D-printable OLED (organic light-emitting diode) material made of inexpensive, Earth-abundant elements instead of costly scarce metals. The advance could enable more affordable and environmentally sustainable OLED flat-panel displays as well as 3D-printable wearable technologies and lighting
"By replacing precious metals with Earth-abundant materials, our supramolecular ink technology could be a game changer for the OLED display industry," said principal investigator Peidong Yang, a faculty senior scientist in Berkeley Lab's Materials Sciences Division and professor of chemistry and materials science and engineering at UC Berkeley. "What's even more exciting is that the technology could also extend its reach to organic printable films for the fabrication of wearable devices as well as luminescent art and sculpture," he added
Engineers have developed a bio-compatible ink that solidifies into different 3D shapes and structures by absorbing ultrasound waves. Because
A specialized ink hardens when exposed to focused ultrasound waves, transforming into biologically compatible structures
Date: December 7, 2023
Source: Duke University
Summary: Engineers have developed a bio-compatible ink that solidifies into different 3D shapes and structures by absorbing ultrasound waves. Because the material responds to sound waves rather than light, the ink can be used in deep tissues for biomedical purposes ranging from bone healing to heart valve repair.
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