Hi! Welcome to the forum!
Are you studying at UBA? Where do you come from? Which career are you in?
We would appreciate it if you could post in Spanish since this is the language used in the forum by all of us. Anyway, it's good to have someone who speaks another language. But don't worry if you can't write in Spanish; there must be many of us who will understand you, so there's no problem at all!
Enjoy!
Franco.