Agriculture is turning to precision application of agrochemicals and growth conditions, but to achieve this affordable tool to monitor crops and soils in field are needed. Here, the authors review the ...

Anion-exchange membrane fuel cells (AEMFCs) face performance challenges due to CO 2 in ambient air, which forms carbonate ions that reduce ionic conductivity. In this Perspective, the authors explore ...

Collateral is a valuable asset (like a car, house or even cash) you can pledge to secure a loan. If you fail to repay your loan, the lender can seize whatever you've put up as collateral. Financial ...