Running OSX from Bootcamp
I am afraid not, it's not possible to virtualise Mac OS X in order to allow it to run within Windows, at least not by effectively opening up your genuine OS partition and running is as though it was a virtual machine, which can be done for a Windows Partition within OS X.

It is possible to run Mac OS X in a virtual machine from a Windows OS, but it is not officially supported by any of the major vendors, and requires a lot of messing around.  Even if you did this, you would not have the ability to genuinely boot straight into that instance of Mac OS X, as it would only be available as the virtual machine.

If you need to access both simultaeniously, you need to stick to booting to Mac OS X, and then opening the Windows partition as a VM.