ACRL officers for 1989-90

ALGEBRA III (Curso 1989-90) Teoŕia de conjuntos

Ejercicio 1. Probar que para cualesquiera conjuntos a, b y c se tiene que: (1) a ⊆ a. (2) a ⊆ b ∧ b ⊆ a =⇒ a = b. (3) a ⊆ b ∧ b ⊆ c =⇒ a ⊆ c. (4) ∅ ⊆ a. Ejercicio 2. Probar que para cualesquiera conjuntos a, b y c Idenpotentes a ∪ a = a a ∩ a = a Conmutativas a ∪ b = b ∪ a a ∩ b = b ∩ a Asociativas a ∪ (b ∪ c) = (a ∪ b) ∪ c a ∩ (b ∩ c) = (a ∩ b) ∩ c Absorcin a ∩ (a ∪ b) = a a ∪ (a ∩ b) = a Dist...

Influenza-related excess mortality in The Netherlands 1989/90.

Health of the foreign-born population: United States, 1989-90.

The health status of immigrants is of vital interest to health policy planners as the number of immigrants in the United States increases. This report has shown that, overall, foreign-born persons had better health than the U.S.-born population, although this health advantage varied by length of residence in the United States. In virtually every measure of health status, and with regard to almo...

16-899C ACRL Tetris Reinforcement Learner

Our approach to this problem was to use reinforcement learning with a function approximator to approximate the state value function [RSS98]. In our case, a +1 reward was given for every completed line, so that the value function would encode the long-term number of lines that is going to be completed by the algorithm. In order to achieve this, we extract features from the game state, and use gr...

Serosurvey and Observational Study of US Army Veterinary Corps Officers for Q Fever Antibodies from 1989 to 2008

Since World War II, the military has experienced outbreaks of Q fever among deploying units including recent case reports of Q fever in US military personnel returning from serving in the Middle East during Operation Iraqi Freedom and Operation Enduring Freedom. Occupational exposure and prevalence of Q fever among US Army Veterinary Corps officers have not been examined. A retrospective serosu...