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.
In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. An example is the function that relates each real number x to its square x 2.
Generally speaking, a function is a subprogram that can be called by code external (or internal in the case of recursion) to the function. Like the program itself, a function is composed of a sequence of statements called the function body.Values can be passed to a function, and the function can return a value.In JavaScript, functions are first-class objects, i.e. they are objects and can be manipulated and passed around just like any other object. Specifically, they are Function objects.alues can be passed to a function, and the function can return a value. In JavaScript, functions are first-class objects, i.e. they are objects and can be manipulated and passed around just like any other object.