Two theories of the direct initiation of apoptotic mechanisms in mammals have been suggested: the TNF-induced ( tumour necrosis factor ) model and the Fas-Fas ligand-mediated model, both involving receptors of the TNF receptor ( TNFR ) family coupled to extrinsic signals.

Two small metal rods were used for autonomous obstacle avoidance, as radio signals from Earth would take too long to drive the rovers using remote control.

Two lahars that travelled down the mountain activated warning signals from the lahar warning system and prompted some ski lodges on the mountain to be evacuated and the closure of roads in the area.

Two small metal rods were used for autonomous obstacle avoidance, as radio signals from Earth would take too long to drive the rovers using remote control.

Two small metal rods were used for autonomous obstacle avoidance, as radio signals from Earth would take too long to drive the rovers using remote control.

Two physicists at APL, William Guier and George Weiffenbach, found themselves in discussion about the microwave signals that would likely be emanating from the satellite and were able to determine Sputnik's orbit by analyzing the Doppler shift of its radio signals during a single pass.

Two copies of the modulated input signals are created.

Two signals, B-Y ( U ) and R-Y ( V ) are used in the PAL system to carry the color information for a picture, with the phase of the V signal ( hue ) reversed ( i. e. shifted through 180 degrees ) on alternate lines ( hence the name PAL, or phase alternate line ).

* April 1 – Two Chinese People's Liberation Army Navy Shenyang J8II fighters intercept a United States Navy EP-3E ARIES II signals intelligence aircraft over the South China Sea, and one of the Chinese pilots dies when his fighter collides with the EP-3E and breaks up.

Two classic examples of signals identified by eukaryotic gene finders are CpG islands and binding sites for a poly ( A ) tail.

Two red lights were seen at Southport, which may have been signals from the life – boat.

Two phase-shifted sinusoid inputs are applied to the oscilloscope in X-Y mode and the phase relationship between the signals is presented as a Lissajous figure.

Two way ducting contacts can have very strong signals and are often made with moderate power, small antennas and other types of modes.

* Two restored Magnetic Flagman grade crossing signals, both upper-and lower-quadrant

Two of these pairs are co-located but perpendicularly oriented to produce what can be referred to as the N-S ( North-South ) and E-W ( East-West ) signals that will then be passed to the receiver.

1 ./ 112th Mountain Artillery Regiment, 1 ./ 38th Engineer Battalion, naval signals detachment, army signals platoon, Two Coast Artillery Batteries ( crews only ), I Bn / 611th LW Flak Regiment – personnel only, airbase personnel

Two signals are connected together when they should not be.

Two minutes later, Aobas lookouts identified the ships as American, but Gotō remained skeptical and directed his ships to flash identification signals.

Two other ships sent out distress signals, one of which capsized, all hands lost.

There are five major nationwide television channels: BBC One, BBC Two, ITV, Channel 4 and Channel 5 — currently transmitted by analogue and digital terrestrial, free-to-air signals with the latter three channels funded by commercial advertising.

Two trains entered a crossing loop simultaneously in opposing directions, although signals at the exit from the crossing loop were correctly showing red for stop.

Two railway employees also raised the alarm to other stations, changed the signals to danger and placed detonators on the tracks to warn oncoming trains.

Two thieves are crucified with Christ, one saved and the other damned.

Two of the vital qualities demanded of a politician by other politicians are that he always keep a confidence and that he keep his word.

Two poets are paired on each record, in the order given above.

Two Anabaptists, Caroli and Benoit, are to challenge you and William to a debate before the Council.

Two features are immediately evident.

Two cities to be considered, Providence and Cranston, are an enigma.

Two walls of concrete blocks are constructed at least 20 inches apart.

Two or more dogs are mounted on each locking bar.

Two very useful ways for modifying a form-dictionary are the addition to the dictionary of complete paradigms rather than single forms and the application of a single change to more than one dictionary form.

Two metabolites ( 1, and 2 ) ) of p-aminobenzoic acid ( PABA ) which act as cofactors for the hydroxylation of aniline by acid-fast bacteria are biosynthesized from Aj.

Two of the clamps are fixed to the edges of the board whereas two clamps travel on guide rails opposite the fixed clamps.

Two unsolved mysteries are based on these facts.

Two of these are in or near Dallas and the others away from the vicinity.

`` Two, wage costs are a fraction of the U.S. costs.

Two sharply contrasting places designed for public enjoyment are now on display.

Two apparent experimental methods of increasing F are increasing the

Two of the most well-known applications of the pure elements are rubidium and caesium atomic clocks, of which caesium atomic clocks are the most accurate representation of time known as of.

Two of the genera, Hemerocallis ( day lily ) and Phormium ( New Zealand flax ), are grown as ornamentals worldwide.

Two 13-person juries composed of artists, academics, critics and AFI Trustees deliberate, discuss and determine the honored ensembles, who are then feted at a private event in January.

Seven stories are inspired by a nursery rhyme: And Then There Were None by Ten Little Indians ; One, Two, Buckle My Shoe by One, Two, Buckle My Shoe ; Five Little Pigs by This Little Piggy ; Crooked House by There Was a Crooked Man ; A Pocket Full of Rye by Sing a Song of Sixpence ; Hickory Dickory Dock by Hickory Dickory Dock, and Three Blind Mice by Three Blind Mice.

* 1920 – Two security guards are murdered during a robbery in South Braintree, Massachusetts.

* 2008 – Two skeletal remains found near Ekaterinburg, Russia are confirmed by Russian scientists to be the remains of Alexei Nikolaevich, Tsarevich of Russia and one of his sisters.

Two other alcohols whose uses are relatively widespread ( though not so much as those of methanol and ethanol ) are propanol and butanol.