ADMB-Foundation

How a Church Deacon Found the Biggest Prime Number Yet (It Wasn’t as Hard as You Think) https://nyti.ms/2Glnrht

Home of TMB and ADMB. Why don't I feel warm and cuddly about this?

https://arstechnica.com//chrome-on-windows-ditches-micros/

https://justindomke.wordpress.com//statistics-the-rules-o/

Vacancy Announcement Number: NMFS-PIC-2017-0009 (MAP) & NMFS-PIC-2017-0012 (DE) Title/Series/Grade: Research Ecologist, ZP-408-3/4 Open/Close: 12/20/17 - 1/4/18... Location: Ecosystem Science Division, PIFSC https://www.usajobs.gov/GetJob/ViewDetails/487180100 (DE/CR)

[New NRM paper online] Nearly exact discretization of single species population models https://onlinelibrary.wiley.com/doi/abs/10.1111/nrm.12167... by Eddy Kwess, Saber Elaydi, Brian Dennis and George Livadiotis [Abstract] We present a nonstandard discretization method related to the methods of Mickens and Elaydi and Sacker for converting single species #population models from continuous time to discrete time. The method falls in the category of the socalled nonstandard discretization schemes, that is more advantageous than the classical discretization methods (such as adaptive stepsize) since it allows large step sizes. For instance, a large step size could better represent a generation time or a time interval between empirical measurements. Examples of singlespecies models with and without negative density dependence, with an #AlleeEffect, and with an alternative positive stable equilibrium (predator pit) are studied. Comparative analyses of bifurcations of ordinary differential equations and difference equations show how the new discretization proposed here preserves the dynamical properties of the continuoustime models. [Recommendations for Resource Managers] The discretization method we propose preserves the original dynamic properties of the continuous model, in the sense of equilibria, their stability, and bifurcation characteristics. Unlike the traditional numerical methods that are widely used in ecology, the dynamical consistency of our method does not depend on the size of the step size used. The discretization method we propose produces solution trajectories in a remarkable agreement with those of the corresponding continuous models irrespective of the size of the time interval used. Results presented here will be important to future ecological studies that seek to evaluate the pervasiveness and strength of negative density dependence as well as Allee effects, along with the prospects of alternative stable states, in natural populations.

"Unlike humans, the probability that an atom will decay does not increase withe age."

Any python users feel good about this? https://qz.com//r-and-python-are-joining-forces-in-the-mo/

ADMB-12.0 is available http://www.admb-project.org/2017//21/ADMB-12.0-Release.html December 21, 2017... The ADMB-12.0 release is now freely available. Read CHANGES for a list of bug fixes, improvements and new features. Read INSTALL procedures to install from source and binary distributions. Check ADMB-12.0 downloads for source and binary distributions. Email any feedback to [email protected]. Cheers, ADMB Core Team