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Gridiron football is a term that refers to both American football and Canadian football. The term came about after it was observed that the field of play in each sport, because of the many lines marking it, resembles a gridiron.

The word "gridiron" alone may refer either to the field or to the sport; however, in North America it's usually only used to refer the field. In some other English-speaking countries--particularly Australia and New Zealand--it is the primary term used to refer to the sport, differentiating it from other forms of football such as Australian rules football, association football (soccer), or rugby football. In the film and TV industries a gridiron is a grid made of steel and/ or iron pipes

In recent years the term has come to be used much more liberally in American Football. John Madden for example uses it to refer to the game itself. "Lets get back to the gridiron" is a type of phrase he and other announcers use when play resumes after a timeout or commercial break. This and other terms are used to glorify the tactics and strategies used in American Football to almost war-like stature.

Barbara Bermudo (born June 15, 1975 in Guaynabo, Puerto Rico) journalist.

Barbara hosts "Primer Impacto" is a Spanish language news program which covers tragedies and incidents dealing with human nature and is popular among the Hispanic population in the United States. Barbara joined the programme in 2002; the co-presenters are Jackie Guerrido and Carmen Dominicci.

In 2003, Barabara participated as "herself" in the film "Chasing Papi", starring Roselyn Sanchez, Jaci Velasquez and Sofia Vergara.

In 2004, Barbara hosted "Lo Que no vio de Premios lo Nuestro" (What you didn't see in Lo Nuestro Awards) and "Noche de Estrellas" (The Night of Stars).

Barbara has made television appearances in "El Show de Cristina", "El Escandalo del Mediodia" (The Midday Scandal) and "Que Bodas" (What Weddings).

See also

• List of famous Puerto Ricans

The concept of interpretability is one in mathematical logic. Assume T and S are formal theories. Slightly simplified, T is said to be interpretable in S iff the language of T can be translated into the language of S in such a way that S proves the translation of every theorem of T. Of course, there are some natural conditions on admissible translations here, such as the necessity for a translation to preserve the logical structure of formulas.

This concept, together with weak interpretability, was introduced by Alfred Tarski in 1953. Three other related concepts are cointerpretability, logical tolerance, and cotolerance, introduced by Giorgi Japaridze in 1992-1993. See also Interpretability logic.

References

• A.Tarski, A.Mostovski and R.M.Robinson, Undecidable Theories. North-Holland, Amsterdam, 1953.
• G.Japaridze and D. de Jongh, The logic of provability. Handbook of Proof Theory. S.Buss, ed. Elsevier, 1998, pp. 476-546.

External links

• Giorgi Japaridze: Homepage
• Giorgi Japaridze: Research and Publications

Monday, I've done my exam Information Theory. Didn't go well. I thought I'd studied enough, but the exam was very hard with large time-consuming question. Nobody was done on time, but I've hardly completed half of it. So I think I'll fail for that one, but let's hope for the best.

Next one is friday, speech processing. Harder than I thought. Large parts of the course handle signal processing and statistics, my two big problems of the second year. I'll do my best ;-)

I also had contact with Dirk Steel about my internship at Siemens. I allready have to start monday! Just a week quality time with my lovely girlfriend isn't possible :-( We'll be together now friday after my exam and her thesis defence. I've cancelled VTK Weekend for me. Saturday, I have a BBQ with people from student representation boards all over Flanders. Let's hope I can spend a large part of my sunday with my sweetheart...

Now the exams have finished it's time when start working
on the fedora stateless server. First thing we need
too do is find a bigger hard disk because the current
one isn't big enought to build an image.
And then the big moment: testing :-)

(sorry, post was in protected tree instead of published for a long time)