...Under construction...

This section contains material, mainly handwritten notes, of talks I've given in different occasions and places. The content is essentially well known and I don't claim any originality about it, except for the mistakes I might have introduced. If you find a mistake don't hesitate to contact me.

- On the motivic de Rham spectrum $\underline\Omega$ versus $\Sigma^\infty\Omega_{-/K}.$ Notes of my talk at the Arbeitgemeinschaft
*Motives, Foliations and the Conservativity Conjecture*at the Humbolt Universität zu Berlin.

- Real cohomology, powers of the fundamental ideal of the Witt sheaf, and applications to homotopy modules Notes for a talk given at the motives seminar in the Summer semester 2016-2017. The seminar was about the work of T. Bachmann on the \rho inverted stable motivic homotopy category.
On the relation between Brauer groups and Shafarevich-Tate groups. These are the notes for a talk given at the Forschungseminar at the university of Duisburg-Essen in the summer semester 2016-2017. The seminar was about the BSD and Modularity conjectures for elliptic curves over function fields.

- On the framed version of the Totaro-Suslin-Nesterenko theorem. Notes from a talk given at the motives seminar during the winter semester 2016-2017. The seminar was about the work of Garkusha-Panin and others on the description of infinite \mathbb{G}_m loop spaces in motivic homotopy theory