Two alternate servers are available for training events and beta testing the next version respectively.

Two beta strands with an alpha helix end folded over to bind a zinc ion.

Two common folding patterns seen in proteins are the alpha helix and beta sheets.

Two anomers are designated alpha ( α ) or beta ( β ), according to the configurational relationship between the anomeric centre and the anomeric reference atom, hence they are relative stereodescriptors.

Two main types of secondary structure, the alpha helix and the beta strand or beta sheets, were suggested in 1951 by Linus Pauling and coworkers.

Two subtypes of this antigen are known: beta Ls ( a ) which carries the Ge3 epitope and gamma Ls ( a ) which carries both the Ge2 and Ge3 epitopes.

Two of the most valuable drug treatments for essential tremor are propranolol, a beta blocker, and primidone, an anticonvulsant.

Two additional acyl chains are often attached to the beta hydroxy group.

Two of the nuclides ( and ) from the list above can decay also via single beta decay but this decay is extremely suppressed and has never been observed.

Two of these have been found to be radioactive: < sup > 128 </ sup > Te and < sup > 130 </ sup > Te undergo double beta decay with half-lives of, respectively, 2. 2 × 10 < sup > 24 </ sup > ( 2. 2 septillion ) years ( the longest half-life of all nuclides proven to be radioactive ) and 7. 9 × 10 < sup > 20 </ sup > ( 790 quintillion ) years.

Two sources of nitrogen-15 are the positron emission of oxygen-15 and the beta decay of carbon-15.

Two related strands of research on altruism have emerged from traditional evolutionary analyses and from game theory.

Two strands of this argument exist: one when patents held by one country form part of a system of exploitable relative advantage in trade negotiations against another, and a second where adhering to a worldwide system of patents confers " good citizenship " status despite ' de facto protectionism '.

* Simul rappelling — Two separate rappellers on the two strands of the rope running through the anchors.

The brand is also used for the broadcast of children's programmes on BBC One ( weekday afternoons ) and BBC Two ( mornings, daily ), although these strands are to be phased out by the end of 2012, as part of the BBC's " Delivering Quality First " cost-cutting initiative.

Two regular strands involved a series of different women making dating agency videos about their general likes and dislikes, and a musical parody that would close the show.

Two important strands of fictionalism are modal fictionalism developed by Gideon Rosen, which states that possible worlds, regardless of whether they exist or not, may be a part of a useful discourse, and mathematical fictionalism advocated by Hartry Field, which states that talk of numbers and other mathematical objects is nothing more than a convenience for doing science.

Two towns are connected by a 4. 5 km road, Ivittuut and Kangilinnguit ; the rest are isolated.

Two instances at one layer are connected by a horizontal connection on that layer.

Two prominent libraries, the Harlan Hatcher Graduate Library and the Shapiro Undergraduate Library which are connected by a skywalk, are also on Central Campus, as well as museums housing collections in archaeology, anthropology, paleontology, zoology, dentistry, and art.

Two ( groups of ) stones are safely connected if nothing can stop them from being connected even if the opponent has the next move.

Two famous transfers connected with the history of France are the expulsion of the Jews, 1308, and of the Huguenots who were declared illegal by the Edict of Fontainebleau, 1685.

Two years later the city was connected by railway to Thorn ( Toruń ).

Two thirds of young people go into vocational education, connected to an apprenticeship, joining the professional world after the 9th grade of secondary school.

Two stations in France are connected by bus to Andorra la Vella — L ' Hospitalet-près-l ' Andorre ( served by the SNCF ) and Latour-de-Carol, served by both SNCF's line to Toulouse and Spain's ( RENFE's ) line to Barcelona.

Two hypotheses regarding the origins of those names exist: one claims that it refers to a specific way of constructing buildings on boggy ground with additional pile support, which is still in use, while the other says that it is connected with a tower or other defensive structure built on the banks of the Słupia River.

Two interurban ( long-distance trolley ) lines served Latrobe: The Westmoreland County Railway Company connected Latrobe to Derry, operating 1904 to 1932.

Two nationalism's primary myths are connected with beliefs in:

Two versions were shown at the time ; one was a card that connected to the Mega ST bus expansion slot, the second version was a stand-alone tower system containing a miniaturized Mega ST inside.

Two grand Persepolitan stairways were built, symmetrical to each other and connected to the stone foundations.

Two hours north-west of Paris, and connected to the south of England by the Caen -( Ouistreham )- Portsmouth ferry route, Caen is located in the centre of its northern region, over which it is a centre of political, economic and cultural power.

Two radially neighboring fluid elements will behave as two mass points connected by a massless spring, the spring tension playing the role of the magnetic tension.

Two intersections are said to be adjacent if they are connected by a horizontal or vertical line with no other intersections between them.

Two intersections are said to be adjacent if they are distinct and connected by a horizontal or vertical line with no other intersections between them.

Lattice structures: Two or more binary operations, including operations called meet and join, connected by the absorption law.

The cities of Kalamazoo and Parchment are adjacent to the township and have annexed much land that was formerly within the township, such that the township now consists of two non-contiguous sections of land and one small section that is connected by a narrow point across Riverview Dr. Two census-designated places ( CDPs ) are within the township: Eastwood and Westwood.

Two sites connected to each other across the public Internet backbone comprise a VPN.

Two rings could be connected together by putting the bus IC's " back to back " in a switch, allowing for larger networks.

Two science parks are closely connected to Linköping University.

Two trains per hour from Birmingham New Street – London Euston via Northampton was replaced by one train per hour to Northampton which connected badly with onward services to London Euston, although a few trains a day did run straight through to London from Birmingham.

Two other children, George and Charles, were connected with theatre management.