Science
To bridge LEDs' green gap, scientists think small... really small: Nanostructures half a DNA strand-wide show promise for efficient LEDs
This simulation of a one-nanometer wide Indium Nitride wire shows the distribution of an electron around a positively charged 'hole.' Strong quantum confinement in these small nanostructures enables efficient light emission at visible wavelengths.
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Quantum Photon Properties Revealed in Another Particle—the Plasmon
An artist's representation of a plasmonic waveguide.
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Europe lofts first Copernicus environmental satellite
The ability of European citizens, policymakers and service providers to access key environmental data on a routine basis will take a major step forward following the launch of ESA’s Sentinel-1A satellite.
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The sky is the limit? Europe’s aviation market takes off
Flight movements across Europe.
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NASA's OCO-2 Brings Sharp Focus on Global Carbon
This animation shows the Orbiting Carbon Observatory-2, the first NASA spacecraft dedicated to studying carbon dioxide in Earth's atmosphere.
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NASA Mars Rover Curiosity Scoping Out Next Study Area
NASA's Curiosity Mars rover recorded this view of various rock types at waypoint called "the Kimberley" shortly after arriving at the location on April 2, 2014.
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Structural Insights into the Inner Workings of a Viral Nanomachine
Captured rotavirus double-layered particles (DLPs) in the midst of producing RNA. The schematic represents an EM Affinity Grid (gray square) coated with adaptor molecules (red and dark blue) that anchor active rotavirus DLPs (yellow) to the Affi nity Grid. Cryo-Electron Microscopy (EM) image of actively transcribing DLPs re-veals RNA strands (gray strands) emerging from the virus capsid. Three-dimensional image reconstructions of DLPs (light blue) that actively produce RNA reveal strong density within the viral core. Diameter of each reconstruction is ~80 nm.
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Tiny Biomolecular Tweezers Facilitate Study of Mechanical Force Effects on Cells and Proteins
Conceptual design of MAP-nDEP tweezers. a) Schematic of chip layout: Circu-lar magnetic nickel pads (blue) were flanked by interdigitated gold electrodes (red). b) Paramagnetic beads were introduced to chip surface by microfluidics and loaded onto the magnetic pads by magnetic manipulation, facilitating the formation of bead-surface tethers via antibody-antigen interactions. c) Interac-tions probed by application of sufficient nDEP force to displace non-specifically bound beads, but not specifi cally bound beads. d) Microfabrication process.
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Nanosheets and nanowires
This is a typical TEM image of as-prepared GeS nanowires with the inset showing a selected area electron diffraction pattern taken from GeS nanowires.
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Carbon nanotubes grow in combustion flames
This is a carbon nanotube growth.
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Human Rights
Fostering a More Humane World: The 28th Eurasian Economic Summi
Conscience, Hope, and Action: Keys to Global Peace and Sustainability
Ringing FOWPAL’s Peace Bell for the World:Nobel Peace Prize Laureates’ Visions and Actions
Protecting the World’s Cultural Diversity for a Sustainable Future
Puppet Show I International Friendship Day 2020