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.....»»
Researchers apply quantum computing methods to protein structure prediction
Researchers from Cleveland Clinic and IBM have recently published findings in the Journal of Chemical Theory and Computation that could lay the groundwork for applying quantum computing methods to protein structure prediction......»»
It"s hard to find fossil skin, but a rare discovery reveals clues about the evolution from water to land
Fossilized skin and other soft tissues are exceedingly rare, and it is only under special conditions that these rarest of fossils are preserved......»»
Research suggests hate speech experiences drop when schools offer structure and adult support
Asian Americans have been the targets of hate speech for generations, particularly during the COVID pandemic. But new research by the University of California, Davis, suggests that Asian American adolescents experience fewer incidents of hate speech.....»»
Researchers successfully fabricate NiS ultrafine nanorods with separated symmetry along two directions
Crystal symmetry is a fundamental concept in materials science, playing a crucial role in determining structure-property relationships. Typically, a crystal is a solid composed of structural units that periodically repeat in three-dimensional space,.....»»
Discovery of ancient rock impression suggests ability to form cornified skin goes back to early evolution of tetrapods
A team of geologists, paleontologists and archaeologists affiliated with several institutions in Poland, Czechia and Germany has found evidence suggesting that the ability to form cornified skin appendages is not unique to terrestrial vertebrates, bu.....»»
Camera tags capture social flexibility of Antarctic minke whales
Researchers have conducted one of the first quantitative studies of social structure and social foraging in Antarctic minke whales, using pioneering animal-borne camera tags......»»
Researchers reveal how acetylation regulates centromere dynamics, chromosome segregation and mitotic progression
Cell division produces new cells, which underpin life proliferation and development. Mitosis is the shortest and the most dynamic phase of the cell cycle. During mitosis, chromosomes are evenly distributed between the two daughter cells, preserving t.....»»
Scientists develop technique to analyze RNA structures in ultra-high definition
Scientists at the University of Nottingham have developed a technique to analyze the atomic-level structure of RNA molecules with exceptional precision and speed, and are the first in the world to use the method to examine structural changes in RNA w.....»»
Putin decree outlines Russian response to any US seizure of frozen assets
Putin decree outlines Russian response to any US seizure of frozen assets.....»»
Researchers reveal dynamic structure of FLVCR proteins and their function in nutrient transport
It is known that malfunctions of the proteins FLVCR1 and FLVCR2 lead to rare hereditary diseases in humans that cause motor, sensory and neurological disorders. However, the biochemical mechanisms behind this and the physiological functions of the FL.....»»
Researchers report structure for developing high-efficiency crystalline white organic light-emitting diodes
Organic light-emitting diodes (OLED) have emerged as a new generation of display technology. Organic crystalline materials possess superior thermal stability, chemical stability, and high carrier mobility, making them an ideal choice for developing l.....»»
Researchers discover hidden step in dinosaur feather evolution
Paleontologists at University College Cork (UCC) in Ireland have discovered that some feathered dinosaurs had scaly skin like reptiles today, thus shedding new light on the evolutionary transition from scales to feathers......»»
Exploring the depths: How iron snow could unlock the secrets of life on Europa
Ever since the tantalizing discovery of icy ocean worlds within our own solar system, such as Europa and Enceladus, scientists have been captivated by the possibility of life lurking beneath their frozen surfaces......»»
Researchers identify the principle behind "soft mechanoluminescent complex"
A research team collaborated to identify the principle of an eco-friendly energy-based soft mechanoluminescent complex that emits light without batteries. It is expected to be applied in various fields, such as optical sensors, artificial skin, and d.....»»
Seeing the color of entangled photons in molecular systems
Spectroscopy is the study of how matter absorbs and emits light and other radiation. It allows scientists to study the structure of atoms and molecules, including the energy levels of their electrons. Classical optical spectroscopy relies on the way.....»»
Using hybrid nanotubes to enhance cancer treatment with intracellular protein delivery
The intracellular delivery of proteins is an important technique for unveiling the cellular functions, protein complex structure, and therapeutics. However, conventional delivery methods have several limitations......»»
Fossil captures starfish splitting itself in two—showing this has been happening for 155 million years
One of the wildest wonders of nature is the ability of some animals to reproduce by splitting in half. There is still so much we don't know about this process. So the discovery of a 155-million-year-old starfish fossil frozen partway through this pro.....»»
Chemists succeed in synthesizing a molecule first predicted 20 years ago
The first and the best-known metallocene is "ferrocene," which contains a single iron atom. Today, sandwich complexes can be found in many inorganic chemistry textbooks, and the bonding and electronic structure of metallocenes is taught in undergradu.....»»
Uneven strain distribution induces detwinning in penta-twinned nanoparticles
Twinned nanoparticles have regions of clear symmetry that share the same crystal lattice, separated by a clear boundary. Changing the twin structure can affect the properties of the nanoparticles, which makes controlling twinning to create tailored n.....»»
Finding the chink in coronavirus"s armor—experiment reveals how the main protease of SARS-CoV-2 protects itself
The COVID-19 pandemic resulted in millions of deaths. Despite an unparalleled collaborative research effort that led to effective vaccines and therapies being produced in record-breaking time, a complete understanding of the structure and lifecycle o.....»»