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“#Strange bedfellows: How butterfly caterpillars sustain their association with cocktail ants” Association of caterpillars of Blues and Hairstreaks (Lycaenidae) with ants range from absent to facultative (opportunistic) to obligate (compulsory), and from mutualistic to parasitic. At one end of the spectrum, caterpillars of species such as the Red Pierrot (Talicada nyseus; left) do not associate…
“#Conservation agriculture increases carbon sequestration in extensive crops” Crops sown under no till farming. Credit: University of Cordoba Agricultural activity is responsible for about 12% of the total emissions of greenhouse gases in Spain. Nevertheless, adopting good agricultural practices can help reverse this situation, by increasing the sequestration of organic carbon in soil. With the…
“#On-chip spin-Hall nanograting for simultaneously detecting phase and polarization singularities” Schematic of the designed structure under illumination of two OAM beams with different polarization states and topological charges Credit: Fu Feng, Guangyuan Si, Changjun Min, Xiaocong Yuan, Michael Somekh A plasmonic spin-Hall nanograting structure that simultaneously detects both the polarization and phase singularities of the…
“#Curiosity Mars rover’s summer road trip has begun” Stitched together from 28 images, NASA’s Curiosity Mars rover captured this view from “Greenheugh Pediment” on April 9, 2020, the 2,729th Martian day, or sol, of the mission. In the foreground is the pediment’s sandstone cap. At center is the “clay-bearing unit”; the floor of Gale Crater…
“#The limitations of super-resolution microscopy overcome” (a) Three-dimensional Ex-dSTORM of 3.2 times expanded centrioles. Measuring bar one micrometer. (b) The enlarged section of (a) shows the nine-fold symmetry of the percentile. Measuring bar 500 nanometers. (c) Three-dimensional Ex-dSTORM of 3.1-fold expanded tubulin filaments. Measuring bar two microns. (d) The magnification in (c) shows a tubulin…
“#For cleaner air, water, and soil” Toxic chemicals stand no chance against a nanoshield created by scientists from IPC PAS. Photo made on site of the Front Modlin company. Credit: IPC PAS, Grzegorz Krzyzewski The air around us is getting more and more polluted. No wonder many scientists strive to find a way to purify…
“#Agriculture: A climate villain? Maybe not!” Per Frankelius, senior researcher, Linkoping University. Credit: Per Frankelius/LiU The UN’s Intergovernmental Panel on Climate Change (IPCC) claims that agriculture is one of the main sources of greenhouse gases, and is thus by many observers considered as a climate villain. This conclusion, however, is based on a paradigm that…
“#Examining trapped ion technology for next generation quantum computers” IonQ’s trapped ion system. Credit: Duke University, staq.pratt.duke.edu/ Quantum computers (QC) are poised to drive important advances in several domains, including medicine, material science and internet security. While current QC systems are small, several industry and academic efforts are underway to build large systems with many…
“#A chemical cocktail of air pollution in Beijing, China during COVID-19 outbreak” Changes in primary aerosols, gaseous precursors, and secondary aerosols during the COVID-19 outbreak and Chinese New Year holiday. Credit: Li Hao The novel coronavirus disease (COVID-19) spreads rapidly around the world, and has limited people’s outdoor activities substantially. Air quality is therefore expected…
“#To protect threatened beetle, entomologists hope new colony takes hold” Beach Tiger Beetle. Credit: Rodger Gwiazdowski As thousands of hopeful coronavirus shut-ins look forward to heading to Atlantic beaches for the July 4 holiday, University of Massachusetts Amherst entomologist Rodger Gwiazdowski and colleagues are also heading to the beach—but they’ll visit the last quiet natural…