Re: [NMusers] Negative DV values

2014-10-03 Thread siwei Dai
Hi, Ron & Nick: Thank you very much for your helpful suggestions! I will look into those references. Regards, Siwei On Fri, Oct 3, 2014 at 12:27 AM, Nick Holford wrote: > Siwei, > > I agree with Ron. Using the measurements you have is better than trying to > use a work around such as likelih

RE: [NMusers] Negative DV values

2014-10-03 Thread Rupert Austin
Siwei, I have to disagree with Nick and Ron’s suggestion to include, without further question, the negative concentration values in your model. Yes, HPLC/UV and HPLC/MS methods contain background noise, and if it is purely random you can account for it in your model by including a suitable r

[NMusers] POST-DOCTORAL POSITIONS AT UNIVERSITY OF MARYLAND, BALTIMORE

2014-10-03 Thread Gopalakrishnan, Mathangi
Position: Post-Doctoral Research Fellow in Pharmacometrics Location: Center for Translational Medicine, Department of Pharmacy Practice and Sciences, School of Pharmacy, University of Maryland, Baltimore Job type: Full Time (2 years) Minimum Education: Ph.D. or equivalent degree in pharm

Re: [NMusers] Negative DV values

2014-10-03 Thread Nick Holford
Rupert, Thanks for mentioning this issue. I quite agree there would be a problem if the chemical analyst had not checked for bias over the entire range of measured concs and adjusted the calibration procedure to remove bias. The nice thing about creating an assay calibration curve is that the

[NMusers] WFN for NONMEM 7.3.0 - version 735

2014-10-03 Thread Nick Holford
Hi, WFN supports NONMEM 7.3.0 and simplified parallel execution methods. Monolix users may use WFN to perform non-parametric and parametric bootstraps with Monolix 4.3.0. NeSI grid users may submit WFN runs to the PAN cluster in Auckland. I have uploaded an updated version of Wings for NONME