Atmospheric Pressure Change Measurement: An Observational Case Study
Kuat Oshakbayev
*
Metabolic Syndrome Department, National Research Oncology Center, Street Kerey Zhanibek Khans, 3, 010000, Nur-Sultan (Astana), Kazakhstan and ANADETO Medical Center, Street Kerey Zhanibek Khans, 22, 240 Point, 010000, Nur-Sultan (Astana), Kazakhstan.
Gulnara Bedelbayeva
Faculty of Postgraduate Education, Asfendiyarov Kazakh National Medical University, Street Tole Bi, 94, Almaty 050000, Kazakhstan.
Meruyert Gazaliyeva
Faculty of Internal Medicine, Medical University Karaganda, Street Gogol, 40, 100000, Karaganda, Kazakhstan.
Attila Tordai
Department of Transfusion Medicine, Semmelweis University, H-1088 Budapest, Vas u. 17, Hungary.
*Author to whom correspondence should be addressed.
Abstract
Introduction: The aim of the study was to show atmospheric pressure change by indirect measurement in hermetically closed vessels during four years follow-up.
Methods: Study design: an observational case study. In hermetically sealed elastic bottles with different liquids were measured differences in liquid and air volumes from baseline to four years follow-up period. Physical law of buoyancy was used to measure in each bottles liquid and air (above the liquid) volumes.
Results: Volumes of liquid and air in all bottles were decreased after the follow-up period to 14.38±2.40 and 36.25±3.37 ml, respectively. Air volumes in comparison to liquid volumes decreased more than two times significantly (P=0.0007) after follow-up period.
Conclusions: Thus, atmospheric pressure increased for the last four-year follow-up period. Further investigations are needed.
Keywords: Atmosphere pressure, climate change, observation study