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 research policy — Stem cell research policy, a controversial topic, varies significantly throughout the world. There are overlapping jurisdictions of international organizations, nations, and states or provinces. Some government policies determine what is allowed… … 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 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 — [ stɛm ] n. m. VAR. stemm • 1934, 1924; mot norv. ♦ Ski Virage accompli en ouvrant le ski aval et en le rapprochant à la sortie de la courbe. ● stem ou stemm nom masculin (norvégien stemm) À ski, virage basé sur le transfert du poids du corps d… … Encyclopédie Universelle
Stem — may also refer to:* a Scanning Transmission Electron Microscope (STEM) or Scanning Transmission Electron Microscopy (STEM) * STEM fields, Science, Technology, Engineering, and Mathematics, collectively considered core technological underpinnings… … 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-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
