The Priestley–Taylor equation (PTE) is frequently applied in actual areal evapotranspiration (ET) estimation methods for obtaining the maximum daily rate of evaporation with data from sub-humid conditions. Since PTE was parameterized under humid conditions, a temperature correction is necessary to avoid overestimation of the maximum rate of ET. Wet-environment surface temperature (Tws), a proxy...

This contribution discribes a new method for monitoring productivity in the slaughter pig production unit. The method is implemented with a graphical user interface. By calculating average daily gain each time a group of slaughter pigs is delivered to the slaughterhouse, a time series is made. Among other features, the application allows the user to monitor the time series graphicaly. Monitorin...

The effect of temperature level (24°C, 28°C, 32°C or 36°C) on performance and thermoregulatory response in growing pigs during acclimation to high ambient temperature was studied on a total of 96 Large White barrows. Pigs were exposed to 24°C for 10 days (days -10 to -1, P0) and thereafter to a constant temperature of 24°C, 28°C, 32°C or 36°C for 20 days. Pigs were housed in individual metal sl...

Americans are learning to take the heat, literally, according to new research in this issue of EHP. Overall, the authors of the new study estimate that the risk of heat-related mortality on hotter-than-usual days was 63% lower in 2005 than it was in 1987. 1 This may indicate the U.S. population, over time, has become more resilient to temperature changes, although some cities showed greater dec...

In order to meet ambitious emission reduction goals in California, greenhouse gas emissions from direct combustion of fossil fuels for residential space and water heating will need to be largely eliminated. If those emission reductions come from fuel switching (natural gas to electricity) then the electricity grid needs to be prepared for the additional load. This paper presents a new method fo...