Things that set Jack Stack apart include a hostess stand, wine list, bar with trendy cocktails, waiter service, nice utensils, plates, cloth napkins and a lengthy menu.

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The researchers twigged that this phenomenon could be used to measure density and, as they report in the Journal of Agricultural and Food Chemistry, they set about this task by erecting a stack of two off-the-shelf neodymium magnets separated by a vertical vial of paramagnetic fluid.

ECONOMIST: Monitor

Stack-outs, those pallets of merchandise set out on the floor in front of the main shelves, were banned.

FORBES: Merchant Princes

We are also identifying a set of close partners who will bring critical elements of the technology stack needed for M2M solutions.

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So a boss with a stack of options to buy the company's shares at a set price has a strong incentive to repurchase shares.

ECONOMIST: Share buybacks