Week of August 29 – September 2, 2011

Monday, August 29, 2011

1:30 PM          Advisory Committee Meeting        400 MSC

1:30 PM          Math 1150 Instructor Meeting      459 MSC

3:30 PM          Calculus Seminar                  459 MSC

Tuesday, August 30, 2011

11:30 AM         Calculator Workshop               459 MSC

12:30 PM         Math 1150 Instructor Meeting      TBD

1:30 PM          Foundational Math Committee Meeting 400 MSC

3:45 PM          Statistics group meeting          459 MSC

Wednesday, August 31, 2011

10:30 AM         R Seminar                         400 MSC

11:30 AM         Statistics Seminar                459 MSC
                 Dr. John Carson,
                 Chief Statistician, Shaw Group. Findlay, OH
 
                 LCMRL, an Improved Approach to Estimating Quantitation
                 Limits in Analytical Chemistry

                 USEPA and Shaw Environmental and Infrastructure have
                 developed an improved method for estimating the lowest
                 concentration at which 'reliable' measurements
                 can be made, known as the Lowest Concentration Minimum
                 Reporting Level (LCMRL). The LCMRL is the lowest true
                 concentration for which future sample recovery is
                 predicted to fall, with high confidence (99%), between
                 50% and 150%. The procedure simultaneously takes into
                 account precision and accuracy. Replicate samples at
                 each of several known concentrations are taken through
                 the entire measurement process. Functions for the
                 expectation and variance of the measurements as a
                 function of the true sample concentrations are
                 estimated iteratively, as in Generalized Estimating
                 Equations. The variance function is a constant + power
                 function, which accommodates constant variance,
                 constant CV and anything in between.

                 Given the mean and variance of response as a function
                 of true concentration, the measurement distribution is
                 taken to be the maximum entropy distribution. That is,
                 normal when negative measurements are possible or gamma
                 when they are not. At this point, we can estimate
                 probabilities of any event that we are interested in
                 the distribution of measurements as a function of true
                 concentration, including the probability that the
                 measured value is between 50% and 150% of the true
                 value. Quantities associated with analyte detection,
                 the critical level and detection limit, can also be
                 computed.

2:30 PM          Putnam Team Meeting               459 MSC

3:30 PM          Analysis Seminar                  459 MSC
                 Dr. Kit Chan, BGSU
                 Hypercyclic vectors for the unitary orbit of a hypercyclic 
                 operator

Thursday, September 1, 2011

10:30 AM         Math 1210 Instructor Meeting      459 MSC

12:50 PM         Algebra/Geometry Seminar          459 MSC

1:30 PM          Math 1260 Instructor Meeting      400 MSC

Friday, September 2, 2011

3:30 PM          NO COLLOQUIUM                     459 MSC

A list of mathematics seminars by subject and other seminars at BGSU is available  here.

If you have comments or material for the calendar, send e-mail to Anita Serda,

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Previous calendars are available individually or in one single file for searching.

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