Greetings everyone!

As I am about to reach European Standards levels C1 in Spanish, English and French, I wouls like to know if anybody could present me sites from where I can download good scientific papers, accurate blogs, podcasts and such materials -- perhaps a bit more specialized then what materials we can get at TV5 Monde, Deutsche Welle etc (I am talking rather scientific materials in Medicine / Biology / Chemistry / Pathology here) so that I can earn better habilities and vocabularyes in order to help me get C2 certification in these idioms.

I am willing to enhance my polyglot abilities, as I am currently B1 (reaching to B2) level in German, and about A2 (by self-didactic studies) in Russian, so that for my next step I am also in need of richer materials -- like educative magazines, symplified books/pdf/ebooks, and such. I'm currently subscribed to "Punto Y Coma" and "Écos" (Spanish), "Deutsch Perfekt" (German),  "Spotlight", "Go English" and Brazilian "Speak up" for English. This has been very useful to me, since I put the CD / downloaded audio and can effective learn in my car (turning some 2 - 3 dayly lost time into a great Babel idiom learning).

In spanish, I have subscribed to AEFA (aefa.es)´s platform of education for Biochemists and Health Professionals, and it is helping me a lot.

Really, what I am in need of some help is:

Can someone give me links/suggestions about

- Free / cheap good medical Papers in French, Spanish and German  (Akin to www.scielo.com)?

- Serious texsts, in intermediate / advanced levels in those idioms?

- Magazines I could subscribe/download with A2-C1 content in French, German, Russian?

- Symplifyed books / ebooks for training in German / Russian?

- Podcasts in English, French, Spanish, German, Russian (preferrably advanced/technical in the 3 first ones, symplifyed in the last ones?

- Short films, educative movies etc?

I really thank everyone that can give me some tips about that!