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.
Infection with HPV (human papillomavirus) is very common. About 80 million people in the U.S. are affected. About 40 of the 100 HPV types are transmitted sexually. This HPV transmission can cause genital warts or abnormal cell changes in the cervix and other genital areas that can lead to cancer. While there is no cure for HPV, the good news is the infection often clears on its own. If it does not, and treatment is needed, there are many HPV treatment options.