Tag Archives: ivory experiment

After legal-ivory experiment, black markets thrive from greater demand, less risk

To curb the destructive illegal ivory trade, the Convention on the International Trade in Endangered Species (CITES) announced in 2008 that it would suspend its ban on the international trade in ivory to allow a one-time legal sale of 108 metric tons of stockpiled ivory to China and Japan from four African nations. This partial-legalization was intended to flood the Asian market with legal ivory, driving black-market purveyors and the poachers who supply them out of business. (more…)

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Edgy Look at 2D Molybdenum Disulfide

Berkeley Lab Researchers Observe 1D Edge States Critical to Nanoelectronic and Photonic Applications

The drive to develop ultrasmall and ultrafast electronic devices using a single atomic layer of semiconductors, such as transition metal dichalcogenides, has received a significant boost. Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) have recorded the first observations of a strong nonlinear optical resonance along the edges of a single layer of molybdenum disulfide. The existence of these edge states is key to the use of molybdenum disulfide in nanoelectronics, as well as a catalyst for the hydrogen evolution reaction in fuel cells, desulfurization and other chemical reactions. (more…)

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