Volume 2 Issue 3, March 2019

Electronic waste is the fastest growing category of hazardous solid waste in the world. Addressing the problem will require international collaboration, economic incentives that protect labour, and management approaches that minimize adverse impacts on the environment and human health.

Electron spins can travel long distances in heavily doped organic materials.

A hybrid analogue–digital computing system based on memristive devices is capable of solving classic control problems with potentially a lower energy consumption and higher speed than fully digital systems.

Measurements with a lateral spin pumping device architecture suggest that long spin diffusion lengths of more than 1 μm are possible in conjugated polymer systems that have a sufficiently high spin density.

By integrating two-dimensional MoS₂ transistors with metal-oxide resistive random-access memories, two-transistor–two-resistor ternary content-addressable memory cells can be created, which could be used to search large amounts of data in parallel.

A reinforcement learning algorithm can be implemented on a hybrid analogue–digital platform based on memristive arrays for parallel and energy-efficient in situ training.

A 1 GHz harmonic radio-frequency identification system can provide a ranging resolution of less than 50 μm with a sampling rate of greater than 1 kHz.

Computer-supported cooperative work (CSCW) seeks to understand and refine the impact of technology on how groups work together. Irene Greif recounts how the field began in 1984 at a meeting stimulated by trends in distributed systems, networks and office automation.