Of the stem

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• Stem cell controversy — The stem cell controversy is the ethical debate primarily concerning the creation, treatment, and destruction of human embryos incident to research involving embryonic stem cells. Not all stem cell research involves the creation, use, or… …   Wikipedia

• STEM fields — is a US Government acronym for the fields of study in the categories of science, technology, engineering, and mathematics. The acronym is in use regarding access to work visas for immigrants who are skilled in these fields.[1] Maintaining a… …   Wikipedia

• Stem cell niche — is a phrase loosely used in the scientific community to describe the microenvironment in which stem cells are found, which interacts with stem cells to regulate stem cell fate. The word niche can be in reference to the in vivo or in vitro stem… …   Wikipedia

• Stem — (st[e^]m), n. [AS. stemn, stefn, st[ae]fn; akin to OS. stamn the stem of a ship, D. stam stem, steven stem of a ship, G. stamm stem, steven stem of a ship, Icel. stafn, stamn, stem of a ship, stofn, stomn, stem, Sw. stam a tree trunk, Dan. stamme …   The Collaborative International Dictionary of English

• Stem leaf — Stem Stem (st[e^]m), n. [AS. stemn, stefn, st[ae]fn; akin to OS. stamn the stem of a ship, D. stam stem, steven stem of a ship, G. stamm stem, steven stem of a ship, Icel. stafn, stamn, stem of a ship, stofn, stomn, stem, Sw. stam a tree trunk,… …   The Collaborative International Dictionary of English

• Stem duchy — Stem duchies (from the German Stammesherzogtum , literally tribal duchy ) were associated with the Frankish Kingdom, especially the East, in the Early Middle Ages. In contrast to later duchies, these entities were not defined by strict… …   Wikipedia

• Stem (bicycle part) — The stem, also called a goose neck, [cite web url = http://www.sheldonbrown.com/gloss g.html#gooseneck title = Sheldon Brown Glossary: Goose Neck accessdate = 2008 01 01|last=Brown |first=Sheldon |authorlink=Sheldon Brown (bicycle mechanic)… …   Wikipedia

• Stem cell factor — (SCF), otherwise known as KIT ligand or Steel factorFreshney, Ian R. Culture of Animal Cells: A manual of basic technique . John Wiley Sons, Inc., Hoboken, New Jersey. ISBN 13 978 0 471 45329 1] ,is a cytokine which binds CD117 (c Kit). SCF is… …   Wikipedia

• Stem-loop — intramolecular base pairing is a pattern that can occur in single stranded DNA or, more commonly, in RNA. The structure is also known as a hairpin or hairpin loop. It occurs when two regions of the same molecule, usually palindromic (reads the… …   Wikipedia

• Stem mixing and mastering — Stem mixing is a method of mixing audio material based on creating groups of audio tracks and processing them separately prior to combining them into a final master mix. This technique originated in the sixties with the introduction of mixing… …   Wikipedia

• Stem Cell Research Enhancement Act — was the name of two similar bills that both passed through the United States House of Representatives and Senate, but were both vetoed by President George W. Bush and were not enacted into law. Despite their names, the proposed statutes remained… …   Wikipedia