In collaboration with Oregon State University's Professional and Continuing Education, the Linus Pauling Institute offers online continuing education courses: Meeting Micronutrient Needs Description:

In collaboration with Oregon State University's Professional and Continuing Education, the Linus Pauling Institute offers online continuing education courses: Meeting Micronutrient Needs Description:

Contents Summary Function Structural integrity of cell membranes Cell signaling Nerve impulse transmission Lipid transport and metabolism Source of methyl groups Osmoregulation Defi

Contents Summary Function Metabolism Mechanisms of action Calcium balance Phosphorus balance Cell differentiation Immunity Insulin secretion Blood pressure regulation Deficiency

Your World is Erupting

Sinuous rilles are probably the most recognizable of small volcanic features on the Moon. Many partially resemble river valleys on the Earth. However, the lunar rilles usually flow away from small pit structures. Also, the lunar samples indicate that the Moon has always been bone dry. Thus, the sinuous rilles probably mark lava channels or collapsed lava tubes that formed during mare volcanism. Still, in some cases, the lunar flows may have melted their way down into older rocks, much like rivers cut into their flood plains on Earth.