Much more than a revolt against British taxes and trade regulations, the American Revolution was the first modern revolution. It marked the first time in history that a people fought for their independence in the name of certain universal principles such as rule of law, constitutional rights, and popular sovereignty.uch more than a revolt against British taxes and trade regulations, the American Revolution was the first modern revolution. It marked the first time in history that a people fought for their independence in the name of certain universal principles such as rule of law, constitutional rights, and popular sovereignty.
Using catheters, interventional radiologists open vessels (including with angioplasty) and then place small tube-like devices called stents to maintain the opening of the vessel (or, in other words, to make sure that vessel's lumen stays patent). Specialists perform this additional.
Scientists discover what makes human embryo attach to uterus. A UCSF-led research team has identified the first molecular step that allows a week-old human embryo to attach to the uterus. The finding is expected to provide a new tool to diagnose and treat infertility and early pregnancy loss, the scientists report. The researchers found convincing evidence that a molecular sticking process stops the embryoâs journey along the uterine wall and starts attaching it to the wallâthe first stage of implantation. Failure of the embryo to implant causes about three-fourths of lost pregnancies.