The pulse wave is a physiological phenomenon, observable and measurable in the arterial system during blood circulation. During one heart systole a certain blood volume is expelled.ulse wave velocity analysis is a classic index of aortic stiffness and is a predictor of cardiovascular mortality in hypertensive cases. Since aortic pulse wave velocity is dominantly influenced by age, this finding may be of major importance for the evaluation of cardiovascular risk in the elderly.
Part of the Business terms glossary: A supply chain is the network of all the individuals, organizations, resources, activities and technology involved in the creation and sale of a product, from the delivery of source materials from the supplier to the manufacturer, through to its eventual delivery to the end user.
A food chain is an order that animals consume their prey or how they get food, a food web is when two or more food chains connect, and a food pyramid is the four food groups which humans eat. Food Chain: The food chain is an example of how food goes around in the animal kingdom. Let's start off with the sun, since that's how most food chains begin. Then let's say grass uses the sun's energy to grow. Well, a herbivore, let's say a cow for this example, eats the grass. But humans then eat the cow. This chain continues on. Food Web: When an animal, sometimes even a plant, eats one or more of a certain animal/plant, two food chains can interconnect and form a food web. It's pretty much a gigantic food chain, but each animal eats more than one living creature.