Walmart’s same-day grocery delivery hits another snag

Deliv was one of Walmart’s earliest partners for same-day delivery, operating pilot programs in Miami and San Jose. The courier backed out of the deal once it became clear that Walmart hadn’t quite figured out the logistics of fulfilling orders. Reuters reported that Deliv drivers often had to wait 40 …

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Algorithm ‘amps up’ smartphones to diagnose disease

Images of a diagnostic assay are captured using a smartphone camera. Regions of interest are extracted and are converted to HSV (hue, saturation, value) space. After the conversion process, the standard pixel intensity analysis is applied to the saturation channel and the values are used to determine absorbance and concentration …

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