Linux is protected by the Free Software Foundation's "GNU General Public License," like all the other software in the extensive GNU project, and this protection permits users to modify Linux and even to sell copies, provided that this right of free use is preserved in the copies.
JBoss and Red Hat both develop open-source software, which allows users to modify and distribute the underlying code.
However, it stops short of allowing users to modify the iOS operating system itself.
The District Court interpreted the Artistic License to permit a user to "modify the material in any way" and did not find that any of the "provided that" limitations in the Artistic License served to limit this grant.
This permits any user to modify the program or improve it.
In exchange and in consideration for this collaborative work, the copyright holder permits users to copy, modify and distribute the software code subject to conditions that serve to protect downstream users and to keep the code accessible.
That would permit users to perform what would amount to between-species metabolic or genomic 'joins'joins
Other interesting CAVE visualizations permit users to see the world at the molecular level.
Allow the User to modify the environment.
These documents are intended for the user to modify.
