Dementia Is a Terminal Illness, But Palliative Care Often Poor. October 16, 2009 â A new study looking at the natural history of dementia into its end stages finds high rates of complications, high 6-month mortality rates, and a high number of distressing symptoms and aggressive interventions of questionable benefit.
Measuring Earthquakes. The vibrations produced by earthquakes are detected, recorded, and measured by instruments call seismographs. The zig-zag line made by a seismograph, called a seismogram, reflects the changing intensity of the vibrations by responding to the motion of the ground surface beneath the instrument.
What the moment magnitude measures. The moment magnitude includes the area of the fault's rupture and slippage along the fault. It also includes the size of the seismic waves recorded by seismographs on seismograms. Formerly the United States Geological Survey used the Richter Scale when describing an earthquake's magnitude. Use for great earthquakes.