Apr 05, 2010

Two informative articles:

• Nick Miller of HMMH has delved in the history of the Ldn/DNL 65 criterion
• John Storyk of Walters-Storyk Design Group discusses the effects of glass surfaces on interior acoustical environments, complete with TL data for various un/laminated glass configurations.

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A follow-up to an earlier article about a patient death at Mass General Hospital — A Federal inquiry found that a contributing factor to the death was “alarm fatigue”:

Additionally, federal investigators said the volume for a separate audible crisis alarm on the patient’s bedside monitor was turned off the night before by an unknown person. Mass. General executives had previously told the Globe that this crisis alarm had been inadvertently turned off.

But investigators for the Centers for Medicare & Medicaid Services said that desensitization to alarms that actually sounded also was a factor in the patient’s death.

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