Electronic door locks have recently become popular since they have many benefits compared with traditional mechanical locks. For example, in the case of keyless locks which are the most popular types of electronic door locks, a physical key is not needed anymore. They might also be invulnerable to the existing physical attacks against mechanical door locks[1]. Despite these known benefits of el...

We instituted a multidisciplinary educational and operational quality improvement initiative to assess the effect of process interventions on reducing OR door openings and, by extension, surgical site infections. From 2009 to 2012, we conducted an initial trial to gather information and identify reasons for door openings followed by a three-phase investigation that evaluated a total of 102 orth...

Equally it is not unusual to come across door-to-door sale agents working in couples rather than on an individual basis. In democratic electoral campaigns, small groups (typically couples) of political party activists may visit, door-to-door, potential electors and seek to gain their votes. Trade union movements often try to coordinate their actions in order to strengthen their position against...

The influence of lateral visibility from the vehicle cabin on safety was evaluated by examining the differences in lane-change crashes of four-door and two-door body styles of the same vehicle models. These two vehicle styles were used because B-pillars (the pillars between the front and rear seats) on four-door models are farther forward, and thus nearer the fore-aft position of the driver. (F...

Suppose you’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats. You pick a door, say No. 1, and the host, who knows what’s behind the doors, opens another door, say No. 3, which has a goat. He then says to you, “Do you want to pick door No. 2?” Is it to your advantage to switch