Рубрика: TopEnviro

  • Grave goods show gendered roles for Neolithic farmers

    Grave goods, such as stone tools, have revealed that Neolithic farmers had different work-related activities for men and women. Researchers at the University of York analysed 400 stone objects found in graves at cemetery sites across Europe and noted there were differences in size, weight, and raw material dependent on whether the body was a…

  • New sunspots potentially herald increased solar activity

    On May 29, 2020, a family of sunspots — dark spots that freckle the face of the Sun, representing areas of complex magnetic fields — sported the biggest solar flare since October 2017. Although the sunspots are not yet visible (they will soon rotate into view over the left limb of the Sun), NASA spacecraft…

  • Humans develop more slowly than mice because our chemistry is different

    Scientists have found that the ‘segmentation clock’ — a genetic network that governs the body pattern formation of embryos — progresses more slowly in humans than in mice because the biochemical reactions are slower in human cells. The differences in the speeds of biochemical reactions may underlie differences between species in the tempo of development.…

  • Geophysics: A surprising, cascading earthquake

    The Kaikoura earthquake in New Zealand in 2016 caused widespread damage. Researchers have now dissected its mechanisms revealing surprising insights on earthquake physics with the aid of simulations carried out on a supercomputer. The 2016 Kaikoura earthquake (magnitude 7.8) on the South Island of New Zealand is among the most intriguing and best-documented seismic events…

  • Better understanding the reasons behind Arctic’s amplified warming

    A professor is calling on scientists to conduct dedicated process studies and to share their data and research findings on Arctic warming. She stresses the importance of studying how aerosols and clouds interact, as these highly complex and poorly understood mechanisms play a key role in climate change, but are also strongly affected by it.…

  • How moving slower allows groups of bacteria to spread across surfaces

    Scientists have found that bacterial groups spread more rapidly over surfaces when the individuals inside them move slowly, a discovery that may shed light on how bacteria spread within the body during infections. Researchers from the University of Sheffield and the University of Oxford studied Pseudomonas aeruginosa, a species of bacteria responsible for deadly lung…

  • Researchers explore promising treatment for MRSA ‘superbug’

    A new study has found the antimicrobial properties of certain stem cell proteins could offer a potential treatment to reduce infection in skin wounds. Treating wounds with the secretion of a type of stem cell effectively reduced the viability of methicillin-resistant Staphylococcus aureus — better known as MRSA — according to a new study from…

  • Beak bone reveals pterosaur like no other

    A new species of small pterosaur — similar in size to a turkey — has been discovered, which is unlike any other pterosaur seen before due to its long slender toothless beak. The fossilised piece of beak was a surprising find and was initially assumed to be part of the fin spine of a fish,…

  • New candidate for raw material synthesis through gene transfer

    Cyanobacteria hardly need any nutrients and use the energy of sunlight. Bathers are familiar with these microorganisms as they often occur in waters. A group of researchers has discovered that the multicellular species Phormidium lacuna can be genetically modified by natural transformation and could thus produce substances such as ethanol or hydrogen. During transformation, a…

  • Researchers identify new Rickettsia bacteria species in dogs

    Researchers have identified a new species of Rickettsia bacteria that may cause significant disease in dogs and humans. This new yet unnamed species, initially identified in three dogs, is part of the spotted-fever group Rickettsia which includes Rickettsia rickettsii, the bacteria that cause Rocky Mountain Spotted Fever (RMSF). Rickettsia pathogens are categorized into four groups;…