Clover and various grasses, for example, are effective in removing petroleum from soil.
Studies have clearly shown that "peer praise" and a "fun work environment," for example, are effective motivators, though it's reasonable to assume these emotional components make more of a difference at lower organizational levels than at senior levels.
It might, for example, be effective to punish students who fail to memorize patriotic statements, or to pay students for community service, but the ethics of those approaches would be controversial.
Mobile devices with touch screens, for example, are effective for selecting objects, but they are much less effective for the precise positioning operations upon which conventional molecule drawing software relies.
Monoclonal antibodies targeting tumor surface antigens such as HER2/neu, CD20, EGF receptor and CD52, for example, are effective for the treatment of other malignancies, through immune cell-dependent and independent mechanisms [8].
A vitamin A capsule, for example, is effective for up to 6 months and costs as little as 2 cents.
Most family planning methods, such as oral and injectable hormonal contraceptives, implants, intrauterine devices (IUDs) and sterilization, for example, are effective against unwanted pregnancy, but do not protect against STDs.
Laser therapy, for example, is effective in treating some pelvic adhesions.
Panadol for example, is effective in lessening pain brought on by body aches.
