Sexually transmitted diseases -- or STDs -- often are silent, meaning there are no symptoms. Women may not notice any symptoms until they have developed serious complications. Be on the lookout for: A drip or discharge from the penis, urethra, vagina, or anus; the color may be white, yellow, green, or gray.
An energy recovery ventilator (also abbreviated ERV) is a type of air-to-air heat exchanger that not only transfers sensible heat but also latent heat.Because both temperature and moisture are transferred, ERVs can be considered total enthalpic devices.he benefit of using energy recovery is the ability to meet the ASHRAE ventilation & energy standards, while improving indoor air quality and reducing total HVAC equipment capacity.
chav (n. and adj.) - vulgar, uneducated, brash. Chav is a term used towards someone who wears a particular fashion and acts a certain way. The usual 'design' of a chav is traksuit bottoms and hoodie.The often swear and will smoke and take anything they can afford.Chav comes from the phrase Council House And Violence.hav is a term used in the United Kingdom to refer to an aggressive  teenager who repeatedly practices anti-social behavour. They are  often from unemployed or working class â¦ backgrounds and engage in  behaviors that include forms of juvenile delinquency such as drug  abuse, rowdiness, and street drinking.