The Y doesn't stand for anything. It is part of the word RAY. In fact, the X doesn't stand for anything either. They were called x-rays because the type of radiation was unkno â¦ wn at the time. is added to make the name sound better. Megaman X, Sonic X, etcetera. It could stand for Extreme or something but that's looking a bit t â¦ oo much into it. 1  Cancers: X-Ray Identification of a Sarcoma Tumor In orthopedics, cancer is a serious issue because of the metastatic nature of cancerous malignancies.
Calculus is the study of how things change. It provides a framework for modeling systems in which there is change, and a way to deduce the predictions of such models. I have been around for a while, and know how things change, more or less.
About Calculus Of Kidney. Calculus of kidney, also called renal calculus or more commonly known as kidney stones, is a condition in which waste materials from urine in the kidneys forms a solid, hard stone. Calculus of kidney symptoms include severe pain in the back or groin area, along with changes in urine, fever, vomiting, and nausea. Pain may strike quickly, and suddenly disappear. Calculus of kidney most commonly occurs as a result of dehydration.