Frozen mammoth skin retained its chromosome structure
Features as small as 50 nanometers preserved in a 50,000-year-old sample. Enlarge (credit: LEONELLO CALVETTI/SCIENCE PHOTO LIBRARY) One of the challenges of working with ancient DNA samples is that damage accumulates ove.....»»
Malfunction in spermatogenesis: Researchers uncover contribution of cylicin proteins to male fertility
For successful fertilization, sperm should move forward rapidly and be shaped correctly. The unique structure of the sperm cells forms during spermiogenesis. Now, researchers from the University Hospital Bonn (UKB) and the Transdisciplinary Research.....»»
Casetify removes from sale all Inside Out cases, as Dbrand shows how it detected its images [U]
Dbrand is suing Casetify for allegedly stealing the teardown designs it uses for skins and cases for Apple and other devices. Dbrand began its extensive collection of internal designs with a skin for the iPhone 13 Pro Max back in July of last year......»»
Florence Bell died unrecognized for her DNA contributions—decades on, female researchers are still being sidelined
Almost 80 years ago, Florence Bell quietly laid the foundations for one of the biggest landmarks in 20th century science: the discovery of the structure of DNA. But when she died on November 23 2000, her occupation on her death certificate was record.....»»
Dbrand is suing Casetify for allegedly stealing its teardown case and skin designs
Dbrand is suing Casetify for allegedly stealing the teardown designs it uses for skins and cases for Apple and other devices. Dbrand began its extensive collection of internal designs with a skin for the iPhone 13 Pro Max back in July of last year......»»
Testing the limits of AlphaFold2"s accuracy in predicting protein structure
Proteins, the workhorses of biology, are encoded by DNA sequences and are responsible for vital functions within cells. Since the first experimental measurement of a protein structure was made by John Kendrew in the 1950s, protein's ability to fold i.....»»
Physicists model chromosome folding, reveal how loops affect spatial organization of the genome
Human chromosomes are long polymer chains that store genetic information. The nucleus of each cell contains the entire human genome (DNA) encoded on 46 chromosomes with a total length of about 2 meters. To fit into the microscopic cell nucleus and at.....»»
Researchers discover novel bacteriocin in common skin bacterium
Infections with antibiotic-resistant bacteria are a growing global problem. Part of the solution may lie in copying the bacteria's own weapons. Researchers in Tromsø have found a new bacteriocin, in a very common skin bacterium. Bacteriocin inhibits.....»»
Nano-sized probes reveal how cellular structure responds to pressure
By giving living cells a "nano-poke" and monitoring the resulting changes in the intracellular environment, researchers have gotten their first glimpse of how whole cells respond to external mechanical pressure......»»
The formation of switchable and metastable discrete structures through chiral self-sorting
A paper titled "Thermo-/Mechano-Chromic Chiral Coordination Dimer: Formation of Switchable and Metastable Discrete Structure through Chiral Self-Sorting" describes chiral coordination dimers that emerge based on effectively exclusive chiral self-sort.....»»
Discovery of structural regularity hidden in silica glass
Glass—whether used to insulate our homes or as the screens in our computers and smartphones—is a fundamental material. Yet, despite its long usage throughout human history, the disordered structure of its atomic configuration still baffles scient.....»»
Adding calcium to soils can help increase organic matter, trap more carbon
Farmers add calcium to their soil for many reasons related to increasing crop yields—including regulating pH and improving soil structure......»»
Progress in Starship test launch, but ship and booster explode
SpaceX on Saturday made progress in the second test launch of its mammoth Starship rocket, with the booster separating from the spaceship, but both then exploding shortly after over the ocean......»»
Nothing kills iMessage bridge because it profoundly violated user privacy & security
Nothing and Sunbird pulled the shockingly insecure iMessage bridge, but only after it was discovered that not only did Sunbird log and retain messages, vCards, and more, but that retained user data could also be downloaded by others.Nothing ChatsNoth.....»»
Researchers tune the speed of chirality switching
Chiral molecules can have dramatically different functional properties while sharing identical chemical formulae and almost identical structures. The molecular structure of two types of a chiral molecule—so-called enantiomers—are mirror images of.....»»
Frozen library of ancient ice tells tales of climate"s past
How was the air breathed by Caesar, the Prophet Mohammed or Christopher Columbus? A giant freezer in Copenhagen holds the answers, storing blocks of ice with atmospheric tales thousands of years old......»»
The "Cosmic Vine": Astronomers discover a large structure that hosts at least 20 massive galaxies
An international team of astronomers reports the discovery of a large-scale structure that consists of at least 20 massive galaxies. The structure, dubbed "Cosmic Vine," has a size of about 13 million physical light years. The finding was detailed in.....»»
Unlocking the mystery of skin cracking in chili peppers
The outermost epidermal cell layer of fleshy fruit is surrounded by a hydrophobic cuticle, notably thicker than that found on vegetative tissues. This cuticle, primarily composed of the cutin polymer, also contains waxes and sometimes polysaccharides.....»»
Scientists Have Been Freezing Corals for Decades. Now They"re Learning How to Wake Them Up
Deep-frozen corals, cryopreserved in the hope of restoring ocean ecosystems, are growing up. Could the futuristic technique eventually save dying reefs?.....»»
Animals skin patterns are a matter of physics—research could improve medical diagnostics and synthetic materials
Patterns on animal skin, such as zebra stripes and poison frog color patches, serve various biological functions, including temperature regulation, camouflage and warning signals. The colors making up these patterns must be distinct and well separate.....»»
A reliable experimental benchmark in crystal structure prediction of pharmaceutical drugs
Physical properties (stability, solubility, etc.), critical to the performance of pharmaceutical and functional materials, are known to strongly depend on the solid-state form and environmental factors, such as temperature and relative humidity. Reco.....»»