BACKGROUND Most research on the seasonality of acute coronary syndrome (ACS) has been were reported from hospital-based data. We aimed to investigate the seasonal distribution of ACS in Beijing and to elucidate the relations between ACS occurrence and climatic parameters in a prehospital setting. METHODS We retrospectively reviewed the electronic prehospital medical records from the Beijing's...

GEOLOGISTS have long known that carbon dioxide may collect in underground workings and in sufficient concentration may cause loss of consciousness and death (Geological Survey and Museum, 1951). It is known that the gas is likely to be expelled when the barometric pressure falls abruptly to low levels. Asphyxiation by carbon dioxide produced in the process of fermentation in breweries and durin...

BACKGROUND Asthma exacerbations attended in emergency departments show a marked seasonality in the paediatric age. This seasonal pattern can change from one population to another and the factors involved are poorly understood. OBJECTIVES To evaluate the association between meteorological factors and schooling with asthma exacerbations in children attended in the paediatric emergency departmen...

Field investigations of lateral gas transport and subsequent emissions in soil adjacent to an old landfill in Denmark were conducted during a 1-year period. A significant seasonal variation in the emissions with high carbon dioxide and low methane fluxes in the summer (May to October) was observed. This was attributed to methane oxidation. Diurnal measurements during a drop in barometric pressu...

This paper overviews findings, potential and limitations of a low-cost vertical distance measurement system, as regards lab research and experimental education on MEMS barometric pressure sensors, and future research directions are also recommended.

In a national-level study of elderly people, Powell et al. found that a 10-μg/m3 increase in coarse particulate matter (PM10–2.5) was associated with a statistically significant increase of 0.69% (95% posterior interval [PI]: 0.45, 0.92) in cardiovascular hospitalizations on the same day as exposure. The cause-specific analysis showed that the greatest association was found for heart rhythm dis...

Field measured respiration rates are necessary to size the appropriate oxygen supply equipment and to determine the proper injection/extraction flow rate and operating mode in the design of a bioventing system. Respiration rates are also used to estimate the amount of contaminant metabolized during the bioventing process. Almost all respiration tests are conducted in an open system subject to a...

BACKGROUND Anecdotal reports assert a relationship between weather and lunar activity and the odontogenic abscess (OA) incidence, but this relationship has not been validated. Therefore, the present study investigated the relationship between oral pain caused by OA and a variety of meteorological parameters and cyclic lunar activity. METHODS The records of all dental emergency patients treate...