Free variables and bound variables. For bound variables in computer programming, see Name binding. In mathematics, and in other disciplines involving formal languages, including mathematical logic and computer science, a free variable is a notation that specifies places in an expression where substitution may take place.
HPV virus infection and natural treatment with dietary supplements, risk of vaccine by Ray Sahelian, M.D. December 28 2014. Genital HPV infection is a sexually transmitted disease (STD) that is caused by human papillomavirus.HPV is the name of a group of viruses that includes more than 90 different strains or types.PV infection and cervical cancer Genital human papilloma virus, the most common sexually transmitted disease in the United States, is associated with cervical cancer in women, and penile cancers in men. The infection is asymptomatic until a malignancy develops.
The Causes, Symptoms, and Treatment of the Human Papillomavirus. Small particles of the human papillomavirus.. Cancer. The human papillomavirus, commonly known as HPV, is a viral infection spread through skin to skin sexual contact. HPV is a group of over 100 different viruses, with at least 30 strains known to cause different types of cancer. There is currently no cure for the virus. HPV is transmitted by skin to skin contact through vaginal, anal and oral sex with a partner who already has the virus. If infected, signs and symptoms may take weeks, months and even years to appear. Symptoms may never appear. Symptoms of HPV normally appear in the form a cauliflower-like growths called genital warts.