CENTRIFUGAL STAGE PERFORMANCE PREDICTION AND VALIDATION FOR HIGH MACH NUMBER APPLICATIONS
Steve Kowalski is an Aero-Thermo Engineer in the Research and Development Department of DresserRand. His responsibilities include the design, development and analysis of aerodynamic components of centrifugal compressors. He has been employed at Dresser-Rand since 2007. He holds a B.S. degree from Michigan State University (Mechanical Engineering, 2002) and an M.S. degree from Michigan State University (Mechanical Engineering, 2005). Prior to joining Dresser-Rand, he worked as a teaching/research assistant at Michigan State University.
LNG Propane Compressor Performance Prediction and Large scale Test Validation
Dr. Jorge Pacheco is Manager of the Aero-Thermo group for Dresser-Rand in Olean, New York. His team is involved in new centrifugal compressor stage development, multi-phase modeling for gas-liquid separation, full-scale and subscale compressor testing, and axial compressor and turbine product development support. He has been with Dresser-Rand since 2007, working as Development Engineer and Supervisor of Solid Mechanics. Dr. Pacheco received his B.S. degree (mechanical engineering, 1997) from Universidad Simon Bolivar and his Ph.D. degree (mechanical engineering, 2003) from Carnegie Mellon University. Before joining Dresser-Rand, Dr. Pacheco was a Professor at Universidad Simon Bolivar for three years in the Thermodynamics and Transport Phenomena Department. Dr. Pacheco is a member of ASME and has authored or co-authored more than 16 technical papers.
Public health in eight European countries: an international comparison of terminology.
OBJECTIVES
The aim of this paper was to assess the use of different terms pertaining to public health in selected Member States of the European Union.


STUDY DESIGN AND METHODS
Qualitative research methods were used to compare the terminology among eight Member States. Seven to nine core terms were defined for each country, and a search was performed for these terms in the names of institutions and professional titles, organized into three comparable categories.


RESULTS
The data analysis showed considerable diversity in terminology. The three most commonly used terms for each country, and the frequency distribution of the core terms for all eight countries were determined.


CONCLUSION
Public health terminology and underlying concepts vary among Member States of the European Union. A large number of loosely related terms are in use, indicating the lack of a common conceptual framework for the discipline of public health. The most commonly used terms pertaining to public health are 'health sciences' and 'health promotion'. 'Public health' is not among the most commonly used terms.