Researchers compared fossil porcupine fish jaws and tooth plates collected on expeditions to Panama, Colombia, Venezuela and Brazil with those from museum specimens and modern porcupine fish, revealing three new species.
There are various concepts about how blood cells develop. However, they are based almost exclusively on experiments that solely reflect snapshots. Scientists now present a novel technique that captures the process in a dynamic way. Using a 'random generator,' the researchers label hematopoietic stem cells with genetic barcodes that enable them to trace which cell types arise from the stem cell.
Researchers have conducted the first large-scale experiment on a Superfund site using poplar trees fortified with a probiotic -- or natural microbe -- to clean up groundwater contaminated with trichloroethylene, or TCE.
Imaging the movement of a virus demonstrates that single-particle X- ray scattering has the potential to shed new light on key molecular processes, like viral infection, when paired with powerful new algorithms.
Researchers have developed an innovative way of hacking conducting plastics so as to prevent bacterial growth using silver nanoparticles and a small electrical current. The method could prove to be useful in preventing bacterial infections in hospitals.
"When those of us who face jail time have yet to give up, how can the rest of you give up?" one activist says
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