Roentgen (unit) absorbed dose in a wide range of matter. When measuring absorbed dose in a human due to external exposure, the SI unit the gray, or the related non-SI rad are used. From these can be developed the dose equivalents to consider biological effects from differing radiation types and target materials. These are equivalent dose, and effective dose for which the SI unit sievert or the non-SI rem are used. The following table shows radiation quantities in SI and non-SI units: Roentgen (unit) The roentgen or röntgen () (symbol R) is a legacy unit of measurement for the exposure of X-rays
The Amazing Catfish The Amazing Catfish The Amazing Catfish () is a Mexican comedy-drama film, written and directed by Claudia Sainte-Luce. The film stars Ximena Ayala as Claudia, a young woman who becomes a caretaker for Martha (Lisa Owen), an older matriarch dying of AIDS. The film premiered on August 10, 2013 at the Locarno International Film Festival, where it won two Junior Jury Awards and was a nominee for the Golden Leopard. It had its North American premiere on September 10, 2013 at the 2013 Toronto International Film Festival, and was named winner of the FIPRESCI Discovery Prize. Rotten Tomatoes gives the