You will have it the rest of your life. COPD usually gets worse over time, but you can learn how to manage it. Pulmonary refers to the lungs and airways. The condition is obstructive because it limits the flow of air into and out of your lungs.
The FischerâTropsch process is a set of chemical reactions that changes a mixture of carbon monoxide gas and hydrogen gas into liquid hydrocarbons. People care about the F-T process for many different reasons, for example, it might be a way to make fuel for cars and trucks that doesn't pollute as much as fossil fuels.
tested and graphed in numerous ways with SAS statistical software. In this article we will provide code for. six different ways of investigating effect modification, primarily using PROC GENMOD, and two ways of. graphing statistical interactions using the GPLOT and (via ActiveX Control) the G3D procedures. Advantages and disadvantages of each approach will be stated.