The purpose of this research paper is to compare health care systems in three highly advanced industrialized countries: The United States of America, Canada and Germany. The first part of the research paper will focus on the description of health care systems in the above-mentioned countries while the second part will analyze, evaluate and compare the three systems regarding equity and efficiency. Finally, an overview of recent changes and proposed future reforms in these countries will be provided as well. We start by providing a general description and comparison of the structure of health care systems in Canada, Germany and the United States.

O objetivo deste estudo foi detectar a presenca de antraceno, naftaleno, benzo[e]pireno e dibenzo[a,h]antraceno na fuligem da cana-de-acucar e avaliar a toxicidade in vivo por meio da frequencia media de aberracoes cromossomicas. A analise cromatografica (em fase gasosa) efetuada na fuligem revelou a presenca dos hidrocarbonetos policiclicos aromaticos (HPA) estudados. O teste de micronucleo, realizado em celulas osseas de camundongos, mostrou que benzo[e]pireno e dibenzo[a,h]antraceno apareceram com frequencia aumentada no micronucleo nas doses testadas. No entanto, o antraceno e o naftaleno nao apresentaram potencial genotoxico. Os dados sugerem que e necessario considerar o potencial de risco oferecido pela fuligem para os cortadores de cana e para a populacao que vive em areas canavieiras.

This paper shows newer approach that has long been used worldwide in the design and processing of measurement in geodetic networks in Bosnia and Herzegovina. Combining GPS and terrestrial measurements gives very good results in the built (urban) areas. The most important thing is to choose the proper place to set GPS points. Another important task of the designer is to find the optimal ratio of GPS and traverse points. This paper presents the improved accuracy of traverse points by inserting an additional GPS points.