Nitride MOVPE tops the bill

Abbreviated MOVPE nucleation of III-nitride light-emitting diodes on nano-patterned sapphire

Metalorganic vapor phase epitaxy (MOVPE) nucleation studies of GaN on planar sapphire and nanopatterned AGOG (Deposition of Aluminum, Growth of Oxide, and Grain growth) sapphire substrates were conducted. The use of abbreviated GaN growth mode, which utilizes a process of using 15 nm low-temperature GaN buffer and bypassing etch-back and recovery processes during epitaxy, enables the growth of ...

TOPs and their regulation.

Upon cell-cycle arrest or nutrient deprivation, the cellular rate of ribosome production is reduced significantly. In mammalian cells, this effect is achieved in part through a co-ordinated inhibition of RP (ribosomal protein) synthesis. More specifically, translation initiation on RP mRNAs is inhibited. Translational regulation of RP synthesis is dependent on cis-elements within the 5'-UTRs (5...

The Drug Control Bill

The Senate Bill

As the crafting of new legislation becomes a drawn-out process, compromises eventually e m e rge, and the resulting proposals often appear to be portions of various proposals spliced together. Such is the case with a farm bill proposal approved Sept. 28 in the Senate Committee on A g r i c u l t u re, Nutrition, and Forestry. As of this writing, the specific language of the bill was being devel...

Footing the bill.

When the discussion turns to the creation of a European Research Council (ERC), a series of questions spring to mind. Answering some of them is now almost trivial—for example, “Why is an ERC needed and timely?”— whereas the answers to others, being more political, are certainly more difficult to envisage for most practising scientists. This is notably the case for the questions: “Who will be th...