Showing 20 articles starting at article 1521

< Previous 20 articles        Next 20 articles >

Categories: Biology: General, Space: The Solar System

Return to the site home page

     (via sciencedaily.com)     Original source 

A lot has changed in the world since the Endangered Species Act (ESA) was enacted 50 years ago in December 1973. Experts are now discuss how the ESA has evolved and what its future might hold. 

     (via sciencedaily.com)     Original source 

Researchers mapped how the measles virus mutated and spread in the brain of a person who succumbed to a rare, lethal brain disease. New cases of this disease, which is a complication of the measles virus, may occur as measles reemerges among the unvaccinated, say researchers.

     (via sciencedaily.com)     Original source 

Analysis of organic compounds -- called polycyclic aromatic hydrocarbons (PAHs) -- extracted from the Ryugu asteroid and Murchison meteorite has found that certain PAHs likely formed in the cold areas of space between stars rather than in hot regions near stars as was previously thought. The findings open new possibilities for studying life beyond Earth and the chemistry of objects in space.

     (via sciencedaily.com)     Original source 

Scientists reveal how G protein-coupled receptors, major therapeutic drug targets, decode critical properties of their ligands.

     (via sciencedaily.com)     Original source 

A new photo of Saturn was taken by NASA's Hubble Space Telescope on October 22, 2023, when the ringed planet was approximately 850 million miles from Earth. Hubble's ultra-sharp vision reveals a phenomenon called ring spokes.

     (via sciencedaily.com)     Original source 

A new study identifies five new species of soft-furred hedgehogs from Southeast Asia. The study used DNA analysis and physical characteristics to describe two entirely new species of soft-furred hedgehogs and elevate three subspecies to the level of species.

     (via sciencedaily.com)     Original source 

A new methodology that allows for the categorization and organization of single-cell data has been launched. It can be used to create a harmonized dataset for the study of human health and disease.

     (via sciencedaily.com)     Original source 

New findings provide details about the hidden organization of the cytoplasm, showing it makes a big difference where in that cellular broth that messenger RNA (mRNA) get translated into proteins. The findings hold promise for increasing or altering the production of proteins in mRNA vaccines and therapies.

     (via sciencedaily.com)     Original source 

Following years of research and the power of a technologically advanced instrument, scientists have detailed the complex nanoscale exoskeleton patterns of the roundworm, a model laboratory organism, revealing clues about how skin layers are bound together.

     (via sciencedaily.com)     Original source 

Scientists have developed an efficient, non-invasive, and pain-free method to generate canine-induced pluripotent stem cells (iPSCs). They identified six reprogramming genes that can boost canine iPSC generation by 120 times compared to conventional methods using fibroblasts. The iPSCs were created from urine-derived cells without the need for feeder cells, an impossible feat until now. Their findings are expected to advance regenerative medicine and genetic disease research in veterinary medicine.

     (via sciencedaily.com)     Original source 

Researchers have discovered how amino acids activate a key cell, TORC1, which is a master regulator in living organisms that controls whether cells grow or recycle their contents in yeast. Notably, the team found that the amino acid cysteine is sensed by a protein called Pib2 and that the two bind together to trigger TORC1. This is important because faulty TORC1 has been linked to disease such as cancer.

     (via sciencedaily.com)     Original source 

A research group found that in female fruit flies, microorganisms enhance reproductive function, boosting the number of cells that form eggs and the number of mature eggs. This is done by controlling the release of hormones to speed up cell division in the ovaries, and limiting programmed cell death. These findings could improve reproductive medicine and could aid the development of new methods to enhance fertility.

     (via sciencedaily.com)     Original source 

Scientists have uncovered how DnaA, the master key to DNA replication, opens the door to bacterial growth. This breakthroughpaves the way for new antibiotics to combat the rising tide of antibiotic resistance.

     (via sciencedaily.com)     Original source 

Researchers have gained a deeper understanding of the nuanced roles of JAK inhibitors, or modulators, in inflammation across various cell types and tissues.

     (via sciencedaily.com)     Original source 

A new technique to clone and reassemble DNA, dubbed CReATiNG, could simplify and lower the cost to make synthetic chromosomes. Potential applications are numerous, including pharmaceutical production, biofuel generation, cancer therapies, and environmental cleanup using modified organisms. The method adds a powerful, versatile tool to the burgeoning field of synthetic biology.

     (via sciencedaily.com)     Original source 

Scientists have discovered that plants send tiny, innocuous-seeming lipid 'bubbles' filled with RNA across enemy lines, into the cells of the aggressive mold. Once inside, different types of RNA come out to suppress the infectious cells that sucked them in.

     (via sciencedaily.com)     Original source 

Asian pit vipers of the genus Trimeresurus are notoriously difficult to tell apart and continue puzzling researchers to this day. Some species groups have similar-looking species (different species that look alike), while others exhibit extreme variation within a single species (same species that look different). Scientists have now discovered a new species of pit viper from Myanmar that is both similar and different from its adjacent sister species.

     (via sciencedaily.com)     Original source 

Researchers describe unusual trilobite fossils prepared as thin sections showing the 3D soft tissues during enrollment. The study reveals the soft undersides of enrolled trilobites and the evolutionary mechanism that allows arthropods to enroll their bodies for protection from predators and adverse environmental conditions.

     (via sciencedaily.com)     Original source 

Researchers have studied the relationships between five closely related species of larks that occur in Africa south of the Sahara. Two of these have not been observed for decades, so the researchers analyzed DNA from museum specimens, some of which were over 100 years old.

     (via sciencedaily.com)     Original source 

A research team has uncovered a previously undetected mechanism in mice -- starring the genetic molecule RNA -- that could explain how each sensory cell, or neuron, in mammalian noses becomes tailored to detect a specific odor chemical.