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48 articles from ScienceDaily
Researchers discover stem cells in optic nerve that preserve vision
- ScienceDaily
- 20/7/30 23:29
Researchers have for the first time identified stem cells in the region of the optic nerve, which transmits signals from the eye to the brain. The finding presents a new theory on why the most common form of glaucoma may develop and provides potential to treat a leading cause of blindness.
One-size does not fit all for post-disaster recovery
- ScienceDaily
- 20/7/30 22:10
A new study that followed 400 households after the 2015 Nepal earthquakes provides insight into better understanding the factors that contribute to resilience and change in short-term rural natural disaster recovery.
Origami microbots: Centuries-old artform guides cutting-edge advances in tiny machines
- ScienceDaily
- 20/7/30 22:10
Origami principles can unlock the potential of the smallest robots, enhancing speed, agility and control in machines no more than a centimeter in size.
Harnessing wind data to help meet energy needs in Florida
- ScienceDaily
- 20/7/30 22:08
A new study shows how upcoming technological advances could make wind energy a hot commodity in the Sunshine State.
Scientists expose fascinating 'compartments' in bacteria
- ScienceDaily
- 20/7/30 20:13
A new review article casts light on organelles, the internal compartments in bacterial cells that house and support functions essential for their survival and growth.
Keep cool in the pool: Novel chip sensor makes swimming pools safer
- ScienceDaily
- 20/7/30 20:13
A new microchip that enables continuous monitoring of pH and chlorine levels in swimming pools will vastly improve water safety as new research shows it can deliver consistent and accurate pool chemistry for reliable pool management.
First gene knockout in a cephalopod achieved
- ScienceDaily
- 20/7/30 20:13
Biologists have achieved the first gene knockout in a cephalopod using the squid Doryteuthis pealeii, an exceptionally important research organism in biology for nearly a century. The team used CRISPR-Cas9 genome editing to knock out a pigmentation gene in squid embryos, which eliminated pigmentation in the eye and in skin cells (chromatophores) with high efficiency.
Stay or leave? A tale of two virus strategies revealed by math
- ScienceDaily
- 20/7/30 20:13
By modeling experimentally measured characteristics of cells infected with hepatitis C in the lab, researchers found that one virus strain was roughly three times more likely to use copied genetic code to create new viruses compared to another, which instead tended to keep more copies inside an infected cell to accelerate replication. Understanding specific strategies adopted by viruses through...
Ancient mountain formation and monsoons helped create a modern biodiversity hotspot
- ScienceDaily
- 20/7/30 20:13
Researchers examined the plant life in the China's Hengduan Mountains, the Himalaya Mountains, and the Qinghai-Tibet Plateau. Using DNA to build family trees of species, they learned that the diversity of plants in that region today can be traced back to newly-formed mountain ranges 30 million years ago, and monsoons that came later. It's a concrete example of how climatic and environmental...
Young kids could spread COVID-19 as much as older children and adults, study suggests
- ScienceDaily
- 20/7/30 20:13
Researchers have discovered that children younger than 5 years with mild to moderate COVID-19 have much higher levels of genetic material for the virus in the nose compared to older children and adults. The findings point to the possibility that the youngest children transmit the virus as much as other age groups.
New understanding of CRISPR-Cas9 tool could improve gene editing
- ScienceDaily
- 20/7/30 20:13
Of the CRISPR-Cas9 tools created to date, base editors have gotten lots of attention because of their seemingly simple editing: they neatly replace one nucleic acid with another, in many cases all that should be needed to fix a genetic disease. Scientists have now determined the structure of the latest base editor as it swaps out nucleic acids, showing why it can go off target but also how it can...
Immune functions traded in for reproductive success
- ScienceDaily
- 20/7/30 20:13
Researchers have investigated the phenomenon of sexual parasitism in deep-sea anglerfish. The scientists show that this very rare mode of reproduction is associated with the loss of adaptive immunity. In the course of evolution, however, the animals have reorganized their immune systems and only survive with the help of their innate immunity.
Challenging a central dogma of chemistry: Energy flow in chemical reactions
- ScienceDaily
- 20/7/30 20:12
Researchers have discovered that common chemical reactions accelerate Brownian diffusion by sending long-range ripples into the surrounding solvent.
Mars 2020 Perseverance Rover Mission to Red Planet successfully launched
- ScienceDaily
- 20/7/30 19:37
NASA's Mars 2020 Perseverance rover mission is on its way to the Red Planet to search for signs of ancient life and collect samples to send back to Earth.
Using protons to tune interlayer forces in van-der-Waals materials
- ScienceDaily
- 20/7/30 19:28
Scientists have demonstrated for the first time that interlayer coupling in a van der Waals (vdW) material can be largely modulated by a protonic gate, 'injecting' protons into the device. The same weak interlayer forces that make vdW materials so easy to separate (eg, the famous Scotch-tape method of isolating graphene) also limit these materials' applications in future technology. Stronger...
Major depressive episodes far more common than previously believed
- ScienceDaily
- 20/7/30 19:28
The number of adults in the United States who suffer from major depressive episodes at some point in their life is far higher than previously believed, a new study finds.
Plastics, pathogens and baby formula: What's in your shellfish?
- ScienceDaily
- 20/7/30 18:37
The first landmark study using next-generation technology to comprehensively examine contaminants in oysters in Myanmar reveals alarming findings: the widespread presence of human bacterial pathogens and human-derived microdebris materials, including plastics, kerosene, paint, talc and milk supplement powders.
New method lets scientists peer deeper into ocean
- ScienceDaily
- 20/7/30 18:36
Researchers have advanced a new way to see into the ocean's depths, establishing an approach to detect algae and measure key properties using light. A new article reports using a laser-based tool, lidar, to collect these measurements far deeper than has been typically possible using satellites.
Forty percent of dementia cases could be prevented or delayed by targeting 12 risk factors throughout life
- ScienceDaily
- 20/7/30 18:36
Forty percent of dementia cases could be prevented or delayed by targeting 12 risk factors throughout life, experts say.
'Drawn-on-skin' electronics offer breakthrough in wearable monitors
- ScienceDaily
- 20/7/30 18:36
Researchers have reported a new form of electronics known as 'drawn-on-skin electronics,' allowing multifunctional sensors and circuits to be drawn on the skin with an ink pen.
New and unique class of carbohydrate receptors
- ScienceDaily
- 20/7/30 18:36
Researchers have determineD the crystal structure of an exopolysaccharide receptor. The results give insight into how plants and microbes communicate, and this knowledge can hopefully be used for more sustainable agriculture where microbes play an important role.
Synthesizing dicarboxylic acids and hydrogen simultaneously from diols
- ScienceDaily
- 20/7/30 18:36
Researchers develop a safer and more efficient way to produce dicarboxylic acid. Using an iridium catalyst bound to a bipyridonate ligand, researchers were able to synthesize dicarboxylic acids from aqueous diols, with the added benefit of generating hydrogen as a byproduct.
The enemy within: Safeguarding against the spread of intracellular bacteria
- ScienceDaily
- 20/7/30 17:31
Researchers have revealed the multiple, intertwined cell death systems that prevent the spread of the 'intracellular' bacterium Salmonella, an important cause of typhoid fever which kills more than 100,000 people annually.
Coastal cities leave up to 75% of seafloor exposed to harmful light pollution
- ScienceDaily
- 20/7/30 17:30
New research is the first in the world to quantify the extent to which biologically important artificial light is prevalent on the seafloor and could, in turn, be having a detrimental effect on marine species.
Extensive gas leaks in the North Sea: Abandoned wells
- ScienceDaily
- 20/7/30 17:30
At abandoned oil and gas wells in the North Sea, considerable quantities of the potent greenhouse gas methane escape uncontrolled into the water. These leaks account for the dominant part of the total methane budget of the North Sea.