Two versions of Blackwood are common: " standard " Blackwood, developed by Easley, and " Roman key card " or " RKC " Blackwood, named for the Italian team which invented it.

Two key marketing executives in Compaq's early years, Jim D ' Arezzo and Sparky Sparks, had come from IBM's PC Group.

From an article by Askanas and Engel: " Two hypotheses predominate regarding the key pathogenic mechanisms involved in s-IBM: an amyloid-beta-related degenerative process and an immune dysregulation.

Two key assumptions underlie this cognitive approach: ( 1 ) that the memory system is an active organized processor of information and ( 2 ) that prior knowledge plays an important role in learning.

Two key mottos taken from those principles are " Education is an atmosphere, a discipline, a life " and " Education is the science of relations.

Two years later in Paris he repeated the proposal, listing the stone as one of several key items belonging to Egypt's cultural heritage, a list which also included the iconic bust of Nefertiti in the Egyptian Museum of Berlin ; a statue of the Great Pyramid architect Hemiunu in the Roemer-und-Pelizaeus-Museum in Hildesheim, Germany ; the Dendara Temple Zodiac in the Louvre in Paris ; and the bust of Ankhhaf from the Museum of Fine Arts, Boston.

Two key judicial decisions, which are still frequently cited today, are reported only in Hare's Reports in Chancery:

Two key challenges to this assertion are:

In 2003, Fastow was a prominent figure in 24 Days: How Two Wall Street Journal Reporters Uncovered the Lies that Destroyed Faith in Corporate America by the reporters who had broken some of the key stories in the saga, Rebecca Smith and John R. Emshwiller.

Two future opponents in the American Revolutionary War, Washington and Thomas Gage, played key roles in organizing the retreat.

The key movements within the Two and a Half International were the ILP and the Austromarxists, and the main forces in the Three and a Half International were the ILP and the Workers ' Party of Marxist Unification ( POUM ) of Spain.

Masters of the House: Congressional Leadership Over Two Centuries ( 1998 ) short biographies of key leaders

Two of the seven key areas of " Catholic social teaching " are pertinent to social justice:

Two major military battles occurred near the city: in 732, the Battle of Poitiers ( also known as the Battle of Tours ), in which the Franks commanded by Charles Martel halted the expansion of the Umayyad Caliphate, and in 1356, the Battle of Poitiers, a key victory for English forces during the Hundred Years ' War.

Two Arginine residues at position 265 and 511 and one Lysine residue at position 508 were found to be key in IP < sub > 3 </ sub > docking.

Two key points discussed in his works are liquid fuels and staging.

Two key inventions led to the development of magnetic core memory in 1951.

Two key innovations in the development of the modern music video were the development of relatively inexpensive and easy-to-use video recording and editing equipment, and the development of visual effects created with techniques such as image compositing.

Two other key songs written and recorded for SMiLE -- " Cabin Essence " and " Surf's Up " -- were compiled by Carl Wilson and included on the 20 / 20 and Surf's Up LPs in more or less the same form as Wilson had intended them for SMiLE, while the song " Cool Cool Water " ( an extended track built around the SMiLE fragment " I love to say Dada ") later appeared on the Sunflower album.

Two key theorems of Ramsey theory are:

* Two eyes, a key concept in the game of go

Two key acquisitions were Sira, taken from the Marathas, and the kingdom of Bednore, where as a casus belli he agreed to support a claimant to its throne against usurpers.

Two equations are key to understanding the behavior of MEMS cantilevers.

Two popular hypotheses are that it was created in Kentucky, hence ' K-Y ', or that the letters represent the key ingredients used to make the lubricant, neither of which are proven.

Two key aspects contributed to SQL Slammer's rapid propagation.

Two of the most notable differences are that the balls are always played in the same sequence ( blue, red, black, yellow ) throughout the game, and that a ball's " deadness " on other balls is carried over from turn to turn until the ball has been " cleared " by scoring its next hoop.

Two notable books addressed the relations between contemporary Judaism and Christianity, Abba Hillel Silver's Where Judaism Differs and Leo Baeck's Judaism and Christianity, both motivated by an impulse to clarify Judaism's distinctiveness " in a world where the term Judeo-Christian had obscured critical differences between the two faiths.

Two differences between the two are that monopolistic competition produces heterogeneous products and that monopolistic competition involves a great deal of non-price competition, which is based on subtle product differentiation.

Two additional differences that favour banks is that they are more accessible for small and medium companies, and that they have the ability to create money as they lend.

Two competing groups developed over fundamental differences in the two remote procedure call systems.

Two significant differences are that when his mantle is placed on him, its hem is torn to form bands, with which his body is bound ( like Lazarus in the tomb ), and his klobuk is placed on his head backwards, so that the monastic veil covers his face ( to show that he had already died to the world, even before his physical death ).

" Two main differences between the modern understanding and ancient understanding of anger can be detected, Kemp and Strongman state: one is that early philosophers were not concerned with possible harmful effects of the suppression of anger ; the other is that, recently, studies of anger take the issue of gender differences into account.

Two years later, Reagan told the United Nations, " I occasionally think how quickly our differences worldwide would vanish if we were facing an alien threat from outside this world ".

Two main differences are that the red and blue colors are inverted and that the red canton extends to the middle of the fly instead of one-third as on the Chilean flag.

Two major differences are that the ball must be pitched underhand — from 46 ft. ( 14 m ) for men or 43 ft. ( 12 m ) for women as compared with 60. 5 ft. ( 18. 4 m ) in baseball — and that seven innings instead of nine constitute a regulation game.

Later discussion of The Two Cultures tended to obscure Snow's initial focus on differences between British systems ( of both schooling and social class ) and those of competing countries.

Two prominent differences in functionality are the bandwidth and the signal-to-noise ratio ( S / N ); however, both digital and analog systems have inherent strengths and weaknesses.

Two races, Central Asian P. r. centralasica and P. r. theresae in the Atlas Mountains of Morocco, have been proposed, but the slight differences in size and colour show no consistent geographical pattern.

Up to two hundred years after Count Roger the Norman conquered the island, differences in the customs and usages of the inhabitants of Malta were distinct from those in other parts of the Kingdom of Two Sicilies: moribus d ' aliis de vivunt d ' ipsarum d ' insularum de homines et constitutionibus, nostri Sicilie.

Two years later, he was renominated, but declined due to platform differences with the party.

Later discussion of The Two Cultures tended to obscure Snow's initial focus on differences between British systems ( of both schooling and social class ) and those of competing countries.

First of all, it is unclear exactly which factors play the largest role in the strength and prevalence of the false-consensus effect in individuals ( ex: Two individuals in the same group and with very similar social standing could have very different levels of FCE, but it is unclear what social, personality or perceptual differences between them play the largest role in causing this disparity ).

Two techniques for doing this are amplified fragment length polymorphism, which through comparing differences between various fragments in the sequence has enabled researchers to differentiate correctly between EU and U. S. isolates, and the examination of microsatellites, which are areas on the sequence featuring repeating base pairs.

* Two episodes, " The Car Tire " and " The Gas Receipt ," were the same story with minor differences between the two.

The regional variations of Choice were discontinued in 2001 in favour of introducing regional opt-outs on BBC Two to digital services ; in some cases, such as BBC 2W in Wales, analogue and digital versions of BBC Two were separately scheduled, but by 2010 all differences between the analogue and digital variants of BBC Two had ceased, and there is now one version of the channel in each area, broadcasting on analogue ( until switchoff ) and digital platforms.

Two months later, Aniston filed for divorce, citing irreconcilable differences.