Once-controversial fish delisted
A small fish famous for handing down the first U.S. Supreme Court ruling on the Endangered Species Act was removed from the endangered species list by the U.S. Fish and Wildlife Service last week. In 1975, the agency declared the snail his Darter (Perchina Tanasi) is endangered and that building a dam on the Little Tennessee River would kill the 9 cm long animal. A court upheld his registration in 1978, but Congress allowed the dam to be built. Darter prospects improved after some were moved to other rivers, larger populations were found, and river waters were cleared. About 400 other fish species across the United States remain listed as at risk.The main reason is the slow pace of recovery Species are listed only after they have declined into small populations that are difficult to rescueand because conservation funding is inadequate, researchers report this week pro swanAccording to the World Wildlife Fund, global freshwater populations have declined on average by 83% since 1970. living planet reportwas released this week.
First Nobel Prize winner to emerge as LGBTQ+
Last week’s Nobel Prize winners in science included, for the first time, researchers who publicly identified themselves as members of the LGBTQ+ community. Ancient DNA pioneer Svante Pääbo, Nobel laureate in Physiology or Medicine, talks about bisexuality in his interviews and autobiography. Neanderthals: In Search of the Lost GenomeNobel Laureate in Chemistry, Stanford University chemist Carolyn Bertozzi is an out-lesbian and is highly regarded for her commitment to mentorship and promoting diversity in science. In February, she received her Lifetime Mentor Award from the AAAS for mentoring more than 170 graduate students and postdocs. Among them are 73 women and 61 members of other underrepresented groups. Bertozzi told an audience at Stanford University last week, “The diversity of people has created an environment where it feels like you don’t have to follow rules.” We could have invented new chemicals.” While the inclusion of these laureates was a milestone in diversity in science, this year’s science laureates were otherwise not as diverse. No. Nine out of 10 were male, and all 10 were white.
Old growth is poorly protected
According to a comprehensive study in , the most ecologically rich type of primary forest covers 67.2 million hectares in the United States, or 36% of all forests. Frontiers of forests and global changeHowever, about two-thirds of these mature forests are privately owned, with a minority owned by the federal government. Only about 24% or 6 million hectares are protected from loggingClearing or exploitation of the remaining forests will support plans by President Joe Biden’s administration to better protect primary forests and their role in supporting biodiversity and limiting greenhouse gas emissions. It can complicate.
Drug components revealed
By mining existing databases, researchers can An additional 1800 naturally occurring crystalline compounds may serve as building blocks for new ‘one-handed’ drugsNewcomers join a small pool of about 250 starter compounds synthesized as a mixture of two mirror-image forms (like the right and left hand) that spontaneously separate when the compound crystallizes. He of each pair can then use one to build more complex one-handed compounds that can be tested as medicines. A particular handedness is often required to be effective as a drug. Researchers at Durham University identified 1,800 compounds by analyzing his 1.2 million crystal structures in the Cambridge Structural Database. The team reported his results on September 23rd. jacks au.
Stones symbolize cultural violence [and] … cultural imperialism.
- Monica Hannah
- The acting dean of the University of Archeology in Aswan, Egypt, told Reuters about the Rosetta Stone, now in the British Museum. Egyptian archaeologists are campaigning for its return to Egypt.
Recorded Aboriginal wood carvings
Australia’s ancient rock art preserves images of what Australian Aborigines call the Dreaming, telling stories about the creation of ancient cultures and landscapes. Researchers are now studying another form of their art preserved in the Tanami Desert in northwestern Australia. Geometric symbols and shapes of birds, snakes and other animals are carved into the soft, undulating bark of the barrel-shaped boab tree. Archaeologists worked closely with Aboriginal Australians to document the carvings before they were lost., when trees wither due to old age, lightning strikes, and wildfires.The author, who includes members of the Aboriginal rinka (snake) clan, has photographed and analyzed artwork found on a dozen boabs and describes this week’s work ancient timesA series of sculptures depict the winding roads of the King Brown Snake, or Rinca Dreaming, which shaped the region’s current dry and undulating landscape in traditional tales.
COVID-19 papers pulled faster
Research shows that retracted papers on COVID-19 are being removed from journals faster than papers on other topics. 82% of flawed pandemic papers were removed within 6 months of publication compared to 58% of other papers. Some scientists have suggested that too many of his COVID-19 findings were hastily printed with insufficient scrutiny, resulting in poor quality. But premature retraction of papers on COVID-19 signals increased scrutinyat least after publication, the study’s authors said in the Oct. 4 issue JAMA Open NetworkOverall retraction rates for COVID-19 and other papers are similar. By May, 138 original research papers on COVID-19 had been retracted. This is just a fraction of the total pandemic literature, which some estimates exceed 500,000 articles.
Statistics Win $1 Million Prize
Five academic researchers share an inaugural $1 million award honoring pioneering work in widely used and socially relevant statistical methodologies.of Roussey Prize for StatisticsThe biennial prize is named after retired researcher at hedge fund Renaissance Technologies and professor of statistics at the University of Leuven, Peter Rousseu. The award, announced this week, recognizes five of his collaborators for their work on causal reasoning with applications in medicine and public health. Their work, for example, has inspired guidelines on when to start antiretroviral therapy in people with HIV. Harvard’s James Robbins and Harvard’s Miguel Hernan will receive half of the prize money. Thomas Richardson of the University of Washington, Seattle. Andrea Rotnitzky of the University of Torcuato Di Tella; and Eric Chetgen Chetgen of the University of Pennsylvania splitting the other half.
China launches solar observatory
China this week launched the Advanced Space-Based Solar Observatory (ASO-S), a satellite capable of monitoring the sun’s magnetic field while monitoring for giant explosions known as solar flares and coronal mass ejections. Simultaneous observations could yield clues to what causes these eruptions and better predictions about when they might occur. We hope this helps reduce the confusion it can cause to your navigation system. The platform is called Quafu 1, after the mythical Chinese sun seeker, who orbits 720 kilometers from Earth. ASO-S is expected to join NASA’s Parker Solar Probe and the European Space Agency’s Solar Orbiter as complementary solar observations.
A pesky plant bug becomes a pollinator
Costa Rican flowers have discovered a way to trick insects that harm them into feeding on the nectar of the flowers, in return for the benefit of pollination. syngonium hastiferum is one of the first plants shown to have evolved to induce this service from plant bugs.Most of the closely related species syngonium hastiferum It is pollinated by beetles attracted to the evening perfume.However syngonium hastiferum It gives off a morning scent that attracts plant pests – nectar-stealing insects.The plant’s normally smooth pollen has evolved spines that stick to the insects of this species, thus pollinating the female flowers, researchers reported in the Oct. 4 issue. biology today.
Asteroid has been deflected, NASA says
A NASA spacecraft that slammed into an asteroid two weeks ago has significantly altered the target’s trajectory around another asteroid, the agency announced this week. This provides clear evidence that humans can redirect future celestial threats to our planet. landed a punch of 6 kilometers per second on the moon of Dimorphus. To measure the target’s deflection, a telescope on Earth calculated its new orbital period by monitoring the brightness dips of the two objects as they pass in front of each other. Before the collision, Dimorphus took 11 hours and 55 minutes to circumnavigate Didymus. The cycle is now 32 minutes shorter. Prior to the collision, NASA had said it would save at least 73 seconds.
U.S. Government Terminates Unlawful
The U.S. Geological Survey (USGS) has violated federal laws protecting whistleblowers when it fires a microbiologist in retaliation for reporting biosafety and animal welfare violations at the Wildlife Disease Institute in Seattle. , was ruled by a federal judge on September 29. A judge found her Eveline Emmenegger, the former laboratory manager of the Western Fisheries Research Center, entitled to damages of up to $200,000. In 2017 and her 2018 she reported problems such as wastewater leaks containing harmful and regulated pathogens and inadequate care of laboratory animals. Emenegher said she was fired in March 2021 over alleged poor performance, which she denied. She appealed, and the USGS overturned the decision the following month. Emenegher said she will return to her workplace in May 2021. The USGS is facing lab safety issues at its Wisconsin facility and another allegation of data tampering at its Colorado lab.