rzehumat

## Description This is related to #2486 . The files containing Random number generator are - [include/random_lcg.h](https://github.com/openmc-dev/openmc/blob/57816e6b8cf23ed0e9b020b72752ed6aeb9501dd/include/random_lcg.h), - [src/random_lcg.cpp](https://github.com/openmc-dev/openmc/blob/57816e6b8cf23ed0e9b020b72752ed6aeb9501dd/src/random_lcg.cpp). However, as PCG is now used, the name `random_lcg` looks a...

Hi, I propose adding [Dakota](https://github.com/snl-dakota/dakota) to the list. It is used for various optimization, uncertainty quantification and sensitivity analysis tasks. Used not only in nuclear engineering. Developed by SNL, open-sourced...

Hi, I am adding links to OFFBEAT and Melkit.

Merging with openmc-reactor-examples

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Hi, I'm wondering if [openmc-reactor-examples](https://github.com/mit-crpg/openmc-reactor-examples/tree/main) might be merged here, as it contains similar examples. Thanks for any ideas here.

loadtxt - add `usecols` option

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### Motivation Would it be possible to add an option to skip the loading of certain columns when using the `loadtxt` from subroutine from `stdlib_io`? The use case could be...