Dielectric metasurfaces represent one of the cutting-edge research and application directions in the current optical field. They not only possess the advantage of low loss but also enable the realization of device thicknesses at subwavelength scales. Credit: Advanced Devices & Instrumentation Dielectric metasurfaces represent one of the cutting-edge research and application directions in optics. They … Read more
The proposed ultra-simplified diffraction-based spectrometer. Credit: Light: Science & Applications (2024). DOI: 10.1038/s41377-023-01355-4 Spectrometers are crucial scientific instruments in various research fields and have consistently served as indispensable tools for foundational research. However, the unwieldy size of conventional spectrometers poses challenges for cost-effective and compact mobile platforms. In recent years, miniaturizing spectrometers based on spectral … Read more
A simplified diagram of the EnOC algorithm, with two dynamical ensemble members for simplicity. Here, the second (purple) ensemble member will receive a higher weight, since it is closer to the MISO forecast in the subspace. Note that in the real implementation, we reduce the dynamics in the MISO subspace to the first two principal … Read more
A wompoo fruit-dove in Queensland, Australia. Unraveling a genetic mystery revealed that flamingos and doves are more distantly related than previously thought. Credit: Daniel J. Field An enormous meteor spelled doom for most dinosaurs 65 million years ago. But not all. In the aftermath of the extinction event, birds—technically dinosaurs themselves—flourished. Scientists have spent centuries … Read more
Credit: Pixabay/CC0 Public Domain On a recent weekday, short but mighty flames began consuming an expanse of tallgrass in Illinois’ Nachusa Grasslands, their advance marked with crackles and pops. Satisfied with the blaze, a group of eight conservation workers split in two, walking the perimeter of a 124-acre square expanse of land. They used liquid … Read more
Tuning driving voltages for anomalously bright UCEL. Credit: USTC A research group has developed a new and highly efficient upconversion luminescence mechanism by scanning tunneling microscopy (STM) induced luminescence to observe an extraordinarily bright single-molecule upconversion electroluminescence (UCEL) phenomenon for the first time. The results are published in Nature Communications. UCEL is a kind of … Read more
A phenotypic screen in C. elegans identifies lci-1 as a facilitator of lysosomal Ca2+ import. Credit: Science Advances (2024). DOI: 10.1126/sciadv.adk2317 Lysosomes, often reductively referred to as the “garbage disposals” of cells, play a pivotal role in our cells’ digestive systems by getting rid of unwanted materials. Now in a groundbreaking study, researchers from the … Read more
Anvil clouds. Image number ISS042-E-215303 from the International Space Station. Credit: Earth Science and Remote Sensing Unit, NASA Johnson Space Center A new analysis based on simple equations has reduced uncertainty about how clouds will affect future climate change. Clouds have two main effects on global temperature—cooling the planet by reflecting sunlight, and warming it … Read more
Credit: Pixabay/CC0 Public Domain Japan’s valiant moon lander was put to sleep again after unexpectedly surviving its second ultra-chilly long lunar night, the space agency said Monday. The Smart Lander for Investigating Moon (SLIM)—dubbed the “Moon Sniper” for its landing precision—touched down in January, making Japan only the fifth nation to achieve a soft lunar … Read more
Many African Americans descended from enslaved ancestors are working to trace their family histories by combining genealogical records and historical documents. Such efforts can connect them to living relatives and forge new sense of identity rooted in specific ancestral lineages and homelands, says University of Illinois anthropology professor LaKisha David. Credit: Fred Zwicky Some political … Read more
