choose your data on specific subject. . .

### Category

Study

### Website URL

https://www.re3data.org/

### Website description

choose your data on specific subject (mechanic, biology, neuroscience etc.) at https://www.re3data.org/browse/by-subject which also you can pick subject from nice UI which show you that your suggested subject is subset of what subject is.
very useful for scientific researches.

### What content should be included?

https://www.re3data.org/browse/by-subject

### Additional description

_No response_

### This is not a duplicated rss request

- [X] I have searched [existing issues](https://github.com/DIYgod/RSSHub/issues) and [pull requests](https://github.com/DIYgod/RSSHub/pulls) to ensure this rss proposal has not already been requested