In Class Assignment

1. Which search would give you more articles:
   1. Dinosaurs or comet, Dinosaurs and comet.
   2. Anorexia or bulimia, Anorexia and bulimia.

2. Enter the following searches into a data base and record the number hits. Then, rewrite the searches using equivalence laws recording the number of hits. If hits are not equal, explain why.
   1. not ( gambling or "drug usage").
   2. (greenhouse and gasses) or (greenhouse and effect).
   3. marijuana and not Canada.
   4. steroids and not( basketball and football).

3. You are given a paper to write. Write a search string that will find articles concerning the following topics:
   1. Compulsive gambling, students, college
   2. Sexual harassment, workplace, employment
   3. Marijuana, legalization, decriminalization, not for medical use.
   State the database you used and the number of articles found.

4. Write two equivalent search strings for the following topics. Show they are equal by stating the equivalence and showing the number of articles are the same.
   1. You want to find articles about smoking bans / smoke free polices on college campuses.
   2. find articles on the use of electric cars / solar powered cars and their effect on pollution.

5. Would you get the same number of hits? Explain why or why not?
   1. "assisted suicide" or ethanasia and ethics
   2. ("assisted suicide" or euthanasia ) and ethics

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