def to_hash
      hash = {}
      instance_variables.each do |inst_var|
        hash[hash_keyize(inst_var)] = instance_variable_get(inst_var)
      end
      hash
    end
def to_hash
      hash = {}
      instance_variables.each do |inst_var|
        hash[hash_keyize(inst_var)] = instance_variable_get(inst_var)
      end
      hash
    end
:no_doc

 Converts the Institution to a hash with keys representing
 each Institutional attribute (as symbols) and their corresponding values.
 Example:

   require 'institutions'
   institution = Institution.new("my_inst", "My Institution")
   data.to_hash   # => {:code => "my_inst", :name => "My Institution", :default => false }