Two decades of intense experimental and theoretical research, with over 100, 000 published papers on the subject, have discovered many common features in the properties of high-temperature superconductors ,< ref name = Legg2006 >

Two of the most active approaches to forming a theory of quantum gravity are string theory and loop quantum gravity ( LQG ), although in theory, supersymmetry could be a component of other theoretical approaches as well.

Two recent independent theoretical studies have shown that the variations in Schumann resonance power related to the day-night transition are much smaller than those associated with the peaks of the global lightning activity, and therefore the global lightning activity plays a more important role in the variation of the Schumann resonance power.

Two types of theoretical energy distribution are recognized: the normal-energy distribution ( NED ), which shows how the energy ε < sub > n </ sub > is distributed immediately after emission ( i. e., immediately outside the tunneling barrier ); and the total-energy distribution, which shows how the total energy ε is distributed.

Two separate special awards are given to the students who get the best score in the theoretical and practical examinations.

Two theoretical explanations for group polarization have come to predominate.

The extent of Locke's involvement in drafting the Fundamental Constitutions is a matter of some debate, but even attributing full culpability for its contents and for his having profited from the Atlantic slave trade, the majority of experts will concede that Locke may have been a hypocrite in this matter, but are adamant that no part of the Two Treatises can be used to provide theoretical support for slavery by bare right of conquest.

Two theoretical horopter can be distinguished via geometric principles, depending on whether or not cyclorotation of the eyes is considered.

Two major theoretical perspectives within the field of critical literacy are the Neo-Marxist / Freirean and the Australian.

Two objections are theoretical.

Two distinct theoretical views have been proposed.

Two approaches exist for this:

Two approaches have been attempted to solve the problems cited above.

Two approaches to International English are the individualistic and inclusive approach and the new dialect approach.

Two approaches exist to fit the tail of a sample empirical cumulative distribution function ( ECDF ) to one of the three possible distribution functions.

Two approaches have resulted in systems that no longer require coding.

Two classifications of evaluation approaches by House and Stufflebeam and Webster can be combined into a manageable number of approaches in terms of their unique and important underlying principles.

Two pseudo-evaluation approaches, politically controlled and public relations studies, are represented.

Two approaches, decision-oriented and policy studies, are based on an objectivist epistemology from an elite perspective.

Two approaches — accreditation / certification and connoisseur studies — are based on a subjectivist epistemology from an elite perspective.

Two involved contrasting approaches to synchronized sound reproduction, or playback:

Two main approaches in program analysis are static program analysis and dynamic program analysis.

Two scenes added exclusively for the international version are Keung and Nancy escaping from the nightclub after the bikies spot them together, and White Tiger taking a golf shot before a subordinate approaches him with his phone.

Two different approaches to fado would become recorded in history: the danced fado stylized by Francis and the spoken fado of João Villaret.

Two common approaches are used when conducting music therapy with children: either as a one-on-one session or in a group setting.

Two approaches to this have surfaced one being the inclined rig, and the other the Bruce foil.

Two independent approaches have been used to estimate the year of the birth of Jesus, one by analyzing the Nativity accounts in the Gospels of Luke and Matthew along with other historical data, the other by working backwards from the estimation of the start of the ministry of Jesus.

Two promising approaches are flexible wings, and fluidics.

Two approaches exists, open and percutaneous.

Two successful approaches were identified — phage display-generated antibodies and mice genetically engineered to produce more human-like antibodies.

Two independent approaches can be used to estimate the year of birth of Jesus, one based on the nativity accounts in the gospels, the other by working backwards from the date of the start of his ministry.

Two approaches to building the Super-Jupiter were considered ; the first used multiple engines to reach the mark, the second used a single much larger engine.

Two facets of this aspect of the literary process have special significance for our time.

Two things have happened in recent months to bring the Council into perspective: each provides a basis for renewed hope and joy.

Two data centers have been established for the collection, indexing, critical evaluation, and dissemination of bibliographies and critical values in the fields of transition probabilities and collision cross sections.

Two stories will illustrate what I have in mind.

Two days before he was taken sick, Cousin Elec was out worrying about what too much rain might do to his sweetpeas, and Cousin Elec had always preserved in the top drawer of his secretary a mother-of-pearl paper knife which Theresa had coveted as a child and which he had promised she could have when he died.

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

Two works by Mauss in particular proved to have enduring relevance: Essay on the Gift, a seminal analysis of exchange and reciprocity, and his Huxley lecture on the notion of the person, the first comparative study of notions of person and selfhood cross-culturally.

Two other groups have similar inflorescences but a superior ovary, and have at times been put into separate families: the Agapanthaceae and the Alliaceae.

Two small sanctuaries, with terracotta votive offerings of Graeco-Phoenician age, lie not far off, but the location of the great shrines of Adonis and Aphrodite have not been identified ( M. Ohnefalsch-Richter, Kypros, i. ch. 1 ).

Two points in this brief description have attracted much scholarly commentary.

Two of Ammonius's students-Origen the Pagan, and Longinus-seem to have held philosophical positions which were closer to Middle Platonism than Neoplatonism, which perhaps suggests that Ammonius's doctrines were also closer to those of Middle Platonism than the Neoplatonism developed by Plotinus ( see the Enneads ), but Plotinus does not seem to have thought that he was departing in any significant way from that of his master.

Two other genera, Echinosphaerium and Camptonema, have been described but appear to be synonyms.

Two, from the Venus tablet of Ammisaduqa ( compiled in Babylon around 1700 BCE ) are reported to have been made during the reign of king Sargon of Akkad ( 2334 – 2279 BCE ).

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 spiritual adversaries endeavour to tempt and corrupt humanity: these are often described through their mythological embodiments, Lucifer and his counterpart Ahriman, which have both positive and negative aspects.

Two Aegean vases were found at Sidon in 1885, and many fragments of Aegean and especially Cypriot pottery have been found during recent excavations of sites in Philistia by the Palestine Fund.

How do you do ?," Capp sardonically congratulated Lennon and Ono on their Two Virgins nude album cover: " I think that everybody owes it to the world to prove they have pubic hair.

The characters have made cameo appearances ( either visually or only voices ) and have been referenced in numerous television shows, such as Friends, Two and a Half Men, Celebrity Deathmatch, Robot Chicken, Space Ghost Coast to Coast, and Saturday Night Live ( TV Funhouse ), in films such as Airheads, Clueless, Austin Powers: International Man of Mystery and Jackass 3D, and even parodied in children shows such as Tiny Toon Adventures, Regular Show and Arthur.

Two groups of invertebrates have notably complex brains: arthropods ( insects, crustaceans, arachnids, and others ), and cephalopods ( octopuses, squids, and similar molluscs ).< ref name = Butler > The brains of arthropods and cephalopods arise from twin parallel nerve cords that extend through the body of the animal.

Two sets A and B are defined to be equal when they have precisely the same elements, that is, if every element of A is an element of B and every element of B is an element of A.

Two investigations have been held by the British government.

Two centuries ago, mummies were still believed to have medicinal properties against bleeding, and were sold as pharmaceuticals in powdered form ( see human mummy confection and mummia ).