Ghosts of past pesticide use can haunt organic farms for decades
Although the use of pesticides in agriculture is increasing, some farms have transitioned to organic practices and avoid applying them. But it's uncertain whether chemicals applied to land decades ago can continue to influence the soil's health after.....»»
Chemists introduce new copper-catalyzed C-H activation strategy
Inspired by what human liver enzymes can do, Scripps Research chemists have developed a new set of copper-catalyzed organic synthesis reactions for building and modifying pharmaceuticals and other molecules. The new reactions are expected to be widel.....»»
Development of organic semiconductors featuring ultrafast electrons
Scientists have created conducting two-dimensional polymers exhibiting electron mobility comparable to graphene. Their research has been featured in the online edition of Chem......»»
Warming of Antarctic deep-sea waters contribute to sea level rise in North Atlantic, study finds
Analysis of mooring observations and hydrographic data suggest the Atlantic Meridional Overturning Circulation deep water limb in the North Atlantic has weakened. Two decades of continual observations provide a greater understanding of the Earth's cl.....»»
Research team resolves decades-long problem in microscopy
When viewing biological samples with a microscope, the light beam is disturbed if the lens of the objective is in a different medium than the sample. For example, when looking at a watery sample with a lens surrounded by air, the light rays bend more.....»»
Effects of organic matter input and temperature change on soil aggregate-associated respiration and microbial carbon use
The Qinghai-Tibet Plateau is one of the most dramatically affected regions by global warming. For a long time, the region has been exposed by low temperature and soil moisture, which led to the severe inhibition of the soil biological activities and.....»»
Analysis shows lone actors more likely to commit terrorist acts than US extremist groups
Extremist groups like the Ku Klux Klan and the Proud Boys have long been an ugly undercurrent of American culture. But despite these groups' hateful rhetoric, their ranks have largely refrained from committing violent acts over the past three decades.....»»
Honey bees experience multiple health stressors out in the field
It's not a single pesticide or virus stressing honey bees, and affecting their health, but exposure to a complex web of multiple interacting stressors encountered while at work pollinating crops, new research from York University has found......»»
NASA"s Dragonfly rotorcraft mission to Saturn"s moon Titan confirmed
NASA has confirmed its Dragonfly rotorcraft mission to Saturn's organic-rich moon Titan. The decision allows the mission to progress to the completion of the final design, followed by the construction and testing of the entire spacecraft and science.....»»
After decades of Mario, how do developers bridge a widening generation gap?
Tezuka: "The secret to having a long-tenured staff is that people don't quit." Enlarge / A prototype wonder effect—featuring Mario's head turned into blocks that could be eaten by enemies—didn't make it into the final game. (.....»»
Migratory birds are on the move and nature-friendly farms can help them on their way
Every spring, hundreds of thousands of birds leave their winter habitat on Poyang, the largest freshwater lake in China, and fly north over the most densely populated region on Earth to reach their breeding grounds in Siberia. As with any long-distan.....»»
Discovery of bacterial proteins that induce asexual reproduction in insects
From microbes in the human gut to symbiotic algae in coral reefs, research in recent decades has increasingly revealed the pivotal roles that microorganisms (or microbial species) play in shaping the biology of host organisms and of broader ecosystem.....»»
Cold Coulomb crystals, cosmic clues: Unraveling the mysteries of space chemistry
While it may not look like it, the interstellar space between stars is far from empty. Atoms, ions, molecules, and more reside in this ethereal environment known as the Interstellar Medium (ISM). The ISM has fascinated scientists for decades, as at l.....»»
Aston Martin hires Pedro Mota to lead Americas region
As Aston Martin begins the move away from gasoline engines and revamps its lineup, the British automaker is leaning on veteran executives with decades of experience at ultraluxury brands......»»
Fires pose growing worldwide threat to wildland-urban interface
Fires that blaze through the wildland-urban interface (WUI) are becoming more common around the globe, a trend that is likely to continue for at least the next two decades, new research finds......»»
Surf clams off the coast of Virginia reappear and rebound
The Atlantic surf clam, an economically valuable species that is the main ingredient in clam chowder and fried clam strips, has returned to Virginia waters in a big way, reversing a die-off that started more than two decades ago......»»
New benzofuran synthesis method enables complex molecule creation
In the field of organic chemistry, scientists are always looking out for new types of reactions to unlock synthesis routes for challenging compounds. Most of the progress that we have witnessed in pharmaceutics and agrochemicals over the past few dec.....»»
America’s ‘God of War’ is now many decades old. The US Army can’t replace it
America’s ‘God of War’ is now many decades old. The US Army can’t replace it.....»»
Song lyrics are getting more repetitive, angrier
An analysis of 50 years of popular music lyrics reveals a number of trends. Enlarge (credit: Henrik Sorensen) From ‘80s new wave to ‘90s grunge to the latest pop single, music has changed a lot over the decades. Thos.....»»
Bumblebees don"t care about pesticide cocktails: Research highlights their resilience to chemical stressors
Bumblebees appear to be quite resistant to common pesticides. This is shown by a new study, the results of which have now been published by scientists from Julius-Maximilians-Universität Würzburg (JMU) in the journal Environment International......»»
Unraveling differences in temperature sensitivity of soil organic matter decomposition under various oxygen conditions
Soil organic matter (SOM) decomposition is a key process that affects soil carbon storage and greenhouse gas emissions. Investigating the temperature sensitivity (Q10) of SOM decomposition and its regulating mechanisms is important for improving pred.....»»