R-value (insulation) contain no trapped CFCs or HFCs (e.g., half-pound low density foams). On certain brands, twenty-year tests have shown no shrinkage or reduction in insulating value. This has led to controversy as how to rate the insulation of these products. Many manufacturers will rate the R-value at the time of manufacture; critics argue that a more fair assessment would be its settled value. The foam industry adopted the LTTR (Long-Term Thermal Resistance) method, which rates the R-value based on a 15-year weighted average. However, the LTTR effectively provides only an eight-year aged R-value, short in the scale of a building that
Recurrent genital herpes quality of life measure Recurrent genital herpes quality of life measure The Recurrent Genital Herpes Quality of Life (RGHQoL) measure is a patient-reported outcome measure which determines the impact that recurrent genital herpes has on a patient’s quality of life. It is a 20 item questionnaire with items such as “Herpes makes it difficult for me to plan ahead” and “I worry that sex will trigger an outbreak.”. Lower scores on the RGHQoL indicate a higher negative impact on quality of life. The RGHQoL was published in 1998 by Galen Research and was funded by Glaxo Wellcome Research & Development. The content of the