We discuss the problem of constructing physician schedules in emergency rooms. Starting from practical instances encountered in six different hospitals of the Montreal (Canada) area, we first we propose generic forms for the constraints encountered in this context. We then review several possible solution techniques that can be applied to physician scheduling problems, namely tabu search, colum...

this article identifies the significance of rooms and the role of their design in satisfaction of the recent habitants, in iranian architecture. accordingly, some guidelines and criteria are presented to optimize dimensions and number of different types of rooms in housing design and could be used in residential building codes. in a review of recent ordinary dwelling unit plans in iran, we obse...

contamination with radiopharmaceuticals in nuclear medicine centers in addition to being a health concern requires time-consuming decontamination efforts. according to nrc (nuclear regulatory commission) contamination should be monitored in nuclear medicine centers where radiopharmaceuticals are prepared and administrated at the end of each working session; otherwise, contamination spread to ot...

The dynamics of indoor environmental conditions, human occupancy, and operational characteristics of buildings influence human comfort and indoor environmental quality, including the survival and progression of microbial communities. A suite of continuous, long-term environmental and operational parameters were measured in ten patient rooms and two nurse stations in a new hospital building in C...

It is common to only use Reverberation Time (RT) for setting the acoustic conditions in a classroom for teaching and learning activities. To calculate the RT in rooms with ceiling absorption is common but this data can also be misleading. Indeed, we measured the same RT values in two identical rooms with different acoustic treatment, even though the calculations predicted significant difference...

MUDs, or “Multi-User Dungeons,” are programs that accept network connections from multiple simultaneous users and provide access to a shared database of “rooms”, “exits”, and other objects. Users browse and manipulate the database from “inside” the rooms, seeing only those objects that are in the same room and moving between rooms mostly via the exits that connect them. MUDs are thus a kind of ...