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Environment 2 hours ago

El Nino not responsible for East Africa floods: Scientists

The El Niño weather pattern did not have "any influence" on widespread flooding that killed hundreds in East Africa this year, an expert group of scientists said Friday.

Earth Sciences 13 hours ago

Researchers create new software for the new European-Japanese Earth observation satellite EarthCARE

Preparations for the launch of the new Earth observation satellite EarthCARE (Earth Cloud Aerosol and Radiation Explorer) at the end of May are in full swing. The joint mission of the European Space Agency (ESA) and the Japan ...

General Physics 13 hours ago

Scientists report on a new approach for deducing proton radii from charge-changing reactions

A study systematically measured the charge-changing reaction cross section of 24 light nuclei on carbon and hydrogen targets at the GSI Helmholtz Centre for Heavy Ion Research in Germany.

Analytical Chemistry 13 hours ago

New method for light-driven oxidation of aryl ethers to esters

Oxidation of saturated C−H bonds is a key chemical reaction in synthetic chemistry and the chemical industry. Nevertheless, the high bond dissociation energies (BDEs) and weak polarity of C(sp3)−H bonds, especially in ...

Ecology 14 hours ago

General Sherman passes health check but world's largest trees face growing climate threats

High in the evergreen canopy of General Sherman, the world's largest tree, researchers searched for evidence of an emerging threat to giant sequoias: bark beetles.

Economics & Business 14 hours ago

Study: Increase in taxpayers reporting self-employment earnings cannot be attributed to increase in gig work

The emergence over the past decade of new institutions and technologies that have made it easier for firms to obtain labor from self-employed contract workers instead of employees has spurred widespread speculation that the ...

Plants & Animals 14 hours ago

Crows can deliberately plan how many calls to make, study shows

In a behavioral experiment, crows were able to learn to produce a set number of calls. This involves them planning in advance. From the sound of the first call in a numerical sequence, it is possible to predict how many calls ...

Analytical Chemistry 14 hours ago

Novel liquid crystals produced by stacking antiaromatic units could lead to advances in organic semiconductors

In organic chemistry, π-stacking systems are supramolecular structures that arise due to the dispersion force, a type of intermolecular noncovalent interaction. They are a common occurrence in nature. The stabilized structure ...

Environment 14 hours ago

Developing novel methods to detect antibiotics in vegetables and earthworms

UPV/EHU researcher Irantzu Vergara has managed to simultaneously analyze several families of antibiotics in vegetables and earthworms. Sampling carried out in various locations of the Basque Autonomous Community has yielded ...

Plants & Animals 14 hours ago

Birdsong and human voice built from same genetic blueprint

Humans have long been fascinated by bird song and the cacophony of other avian sounds—from coos and honks to quacks and peeps. But little is known about how the unique vocal organ of birds—the syrinx—varies from species ...

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