Prepared for war: How cells survive viral invasion
"Let him who desires peace, prepare for war," wrote the Roman author Vegetius in the 4th century CE. Our bodies, it seems, live by this dictum: Even in times of peace, some cells express high levels of defensive, antiviral proteins. A new Weizmann In.....»»
Pausing biological clock could give boost to lab-produced blood stem cells
A decade ago, Raquel Espin Palazon discovered that inflammatory signaling pathways must switch on for embryos to produce blood stem cells. The latest work from her lab shows the potential value of keeping those same signals switched off after their i.....»»
Silver nanoparticles and a new sensing method can fight back against antibiotic-resistant biofilms
From safeguarding our food supply to preventing hospital infections, the battle against antibiotic-resistant bacteria is a growing challenge. Some bacteria can form biofilms, thick aggregates of millions of individual cells surrounded by protective m.....»»
How to merge and unmerge cells in Microsoft Excel
Microsoft Excel has numerous powerful data analysis functions, but sometimes you need to do something simple like merge some cells. Here's how......»»
Biomolecules inside living cells can now be seen with infrared light thanks to new method
To accelerate biotechnology innovations, such as the development of lifesaving drug therapies, scientists strive to develop faster, more quantitative and more widely available ways to observe biomolecules in living cells......»»
Uncovering the unique roles of Exportin-5 in RNA export within Drosophila cells
Eukaryotic cells are complex biological units, each with multiple membrane-bound compartments. These cells use specialized mechanisms to export biomolecules from their synthesis site to where they function......»»
The viral ‘GPU purse’ costs $1,024 — but you can make your own for $40
A $1,000 purse made out of a discarded GT 730 GPU is going viral, but you can slap one together for about $40 on your own......»»
How context-specific factors control gene activity
Every cell in our body contains the same DNA, yet liver cells are different from brain cells, and skin cells differ from muscle cells. What determines these differences? It all comes down to gene regulation; essentially how and when genes are turned.....»»
Space travel comes with risk—SpaceX"s Polaris Dawn mission will push the envelope further than ever
Space is an unnatural environment for humans. We can't survive unprotected in a pure vacuum for more than two minutes. Getting to space involves being strapped to a barely contained chemical explosion......»»
Person in Missouri caught H5 bird flu without animal contact
The person recovered, and Missouri officials say risk to public is still low. Enlarge / The influenza virus from an image produced with transmission electron microscopy. Viral diameter ranges from around 80 to 120 nm. (credit: Ge.....»»
Scientists Destroy 99% of Cancer Cells in Lab With Vibrating Molecules
Scientists Destroy 99% of Cancer Cells in Lab With Vibrating Molecules.....»»
Why are we so fascinated with aliens?
Robert Smith is convinced the aliens have won. "The invasion has happened—it's all over," says the University of Alberta space historian who teaches a course on the history of extraterrestrials......»»
Super Typhoon Yagi threatens southern China, Vietnam
Southern China's Hainan province evacuated over 400,000 people ahead of the expected landfall on Friday of Super Typhoon Yagi, while tens of thousands prepared to seek shelter in neighboring Vietnam from what is set to be the strongest storm to hit t.....»»
Hijacking the command center of the cell: Nuclear parasites in deep-sea mussels
Most animals live in intimate relationships with bacteria. Some of these bacteria live inside the cells of their hosts, but only very few are able to live inside cell organelles (structures inside the cell, like organs in the body). One group of bact.....»»
Decoding the language of cells with the power of proteomics
Hundreds of millions of years ago, single cells joined forces to become multicellular organisms. At the foundation of this multicellular world is the cell surface: the plasma membrane surrounding each cell, where individual units meet and communicate.....»»
BMW explains why it will sell hydrogen fuel cells in 2028
BMW sees hydrogen as complementary to battery EVs on a region-by-region basis. Enlarge / BMW has had some hydrogen fuel cell-powered iX5s in testing for a while, and for Art Basel 2024 this one got a new look courtesy of Es Devli.....»»
Labs collaborate to enhance imaging tools for cell observation
Two labs at the University of Utah's Department of Chemistry joined forces to improve imaging tools that may soon enable scientists to better observe signaling in functioning cells and other molecular-scale processes central to life......»»
Ukrainian drones now spray 2,500° C thermite streams right into Russian trenches
Mechanical dragons now deliver fire on command. Enlarge Wars of necessity spawn weapons innovation as each side tries to counter the other's tactics and punch through defenses. For instance—as the Russian invasion of.....»»
Record measles outbreak in Oregon blamed on vaccine exemptions
Vaccine exemptions at nearly 9% in the state, enabling sustained transmission. Enlarge / A US child infected with measles during a 2024 outbreak. The child’s cheek shows the characteristic rash associated with this viral infect.....»»
After Starliner, NASA has another big human spaceflight decision to make
"We still have a lot of work to do to close out the heat shield investigation.” Enlarge / The Artemis II Orion spacecraft being prepared for tests at NASA’S Kennedy Space Center in Florida in June 2024. (credit: NASA / Rad S.....»»
City light pollution is shrinking spiders" brains, new study finds
As darkness falls, the nocturnal half of the animal kingdom starts its day. Nocturnal species are perfectly adapted to navigate and survive the dark of night that has existed for countless millions of years......»»