Epyx first showed the Handy system at the Winter Consumer Electronics Show ( CES ) in January 1989.

By the mid-1960s, both systems showed enough promise to start development of base selection for a limited ABM system dubbed Sentinel.

Among his results, Gauss showed that under a paraxial approximation an optical system can be characterized by its cardinal points and he derived the Gaussian lens formula.

Chesterton, the Christian apologist, claimed: ".. the medieval system began to be broken to pieces intellectually, long before it showed the slightest hint of falling to pieces morally.

The archbishop wrote several treatises of considerable value, including an Essai sur les hieroglyphes egyptiens ( Paris, 1834 ), in which he showed that Jean-François Champollion's system was insufficient to explain the hieroglyphics.

One study successfully showed that dendritic cells, part of the innate immune system, display opiate receptors.

This same study showed that dendritic cells chronically treated with morphine during their differentiation produce more interleukin-12 ( IL-12 ), a cytokine responsible for promoting the proliferation, growth, and differentiation of T-cells ( another cell of the adaptive immune system ) and less interleukin-10 ( IL-10 ), a cytokine responsible for promoting a B-cell immune response ( B cells produce antibodies to fight off infection ).

In his above-mentioned account, he introduced the bra-ket notation, together with an abstract formulation in terms of the Hilbert space used in functional analysis ; he showed that Schrödinger's and Heisenberg's approaches were two different representations of the same theory, and found a third, most general one, which represented the dynamics of the system.

When Mach 3 attempted to move most of the operating system into user-space, the overhead became higher still: benchmarks between Mach and Ultrix on a MIPS R3000 showed a performance hit as great as 67 % on some workloads.

A 2009 study showed that pterosaurs had a lung-air sac system and a precisely controlled skeletal breathing pump, which supports a flow-through pulmonary ventilation model in pterosaurs, analogous to that of birds.

These 17 unique pediatric cases showed mostly hematological, musculoskeletal, allergic / hypersensitivity, and central nervous system adverse events.

By 1969, the debate over virtual memory for commercial computers was over ; an IBM research team led by David Sayre showed that their virtual memory overlay system consistently worked better than the best manually controlled systems.

A display of his design debuted in September 2001 in an Atlanta subway system tunnel and showed an advertisement to riders moving past.

Kurt Gödel in 1932 showed that intuitionistic logic is not a finitely-many valued logic, and defined a system of Gödel logics intermediate between classical and intuitionistic logic ; such logics are known as intermediate logics.

These results were confirmed by Grocholski et al., who calculated distances to a number of clusters and showed that the LMC's cluster system is in fact distributed in the same plane as the field stars.

A 2006 poll showed that 85 % of Arizonans familiar with their Clean Elections system thought it was important to Arizona voters.

It remained mysterious until 1965, when Kruskal and Zabusky showed that, after appropriate mathematical transformations, the system can be described by the Korteweg-de Vries equation, which is the prototype of nonlinear partial differential equations that have soliton solutions.

He showed that mathematical physics is a conservative extension of his non-mathematical physics ( that is, every physical fact provable in mathematical physics is already provable from Field's system ), so that mathematics is a reliable process whose physical applications are all true, even though its own statements are false.

( 1986 study of 156 female patients with Turner syndrome ) showed a significantly greater number of deaths from diseases of the circulatory system than expected, half of them due to congenital heart defects — mostly postductal coarctation of the aorta.

Research at Haskins Laboratories in the 1960s showed that speech allows humans to achieve a vocal communication rate that exceeds the fusion frequency of the auditory system by fusing sounds together into syllables and words.

" The results of his method of governing his states soon showed themselves in insurrections, conspiracies, assassinations and rebellion, especially in Umbria, the Marches and Romagna ; the violent repression of which, by a system of espionage, secret denunciation, and wholesale application of the gibbet and the galleys, left behind it to those who were to come afterwards a very terrible, rankling and long-enduring debt of party hatreds, of political and social demoralisation, and — worst of all — a contempt for and enmity to the law, as such.

However, an April 2007 review showed that, in a double-blind test, reviewers generally preferred the output produced using third-party ink over OEM ink .< REF name =" Auto5I-8 "/> In general, OEM inks have undergone significant system reliability testing with the cartridge and print-head materials, whereas R & D efforts on third-party ink material compatibility is likely to be significantly less.

Researchers at University College London have questioned the wisdom of suppressing the immune system in Crohn's, as the problem may be an underactive rather than an overactive immune system: Their study found that Crohn's patients showed an abnormally low response to an introduced infection, marked by a poor flow of blood to the wound, and the response improved when the patients were given sildenafil citrate.

First, it marked the end of the Balkan League, a vital arm of the Russian system of defense against Austria-Hungary.

This turn of events marked China's transition from a planned economy to a mixed economy with an increasingly open market environment, a system termed by some as " market socialism ", and officially by the Communist Party of China as " Socialism with Chinese characteristics ".

Aside from these core elements, a civilization is often marked by any combination of a number of secondary elements, including a developed transportation system, writing, standardized measurement, currency, contractual and tort-based legal systems, characteristic art and architecture, mathematics, enhanced scientific understanding, metallurgy, political structures, and organized religion.

Cartesian coordinate system with a circle of radius 2 centered at the origin marked in red.

Lip-rounding is also built into the system, so that front vowels ( such as e, a ) have spread or neutral lip postures, but the back vowels ( such as ) have more marked lip-rounding as vowel height increases.

Distributism therefore advocates a society marked by widespread property ownership and, according to co-operative economist Race Mathews, maintains that such a system is key to bringing about a just social order.

Those marked with an asterisk are recognized in the APG III system.

In the most common case concord system, only the final word ( the noun ) in a phrase is marked for case.

1648 marked the effective end of the Holy Roman Empire and the beginning of the modern nation-state system, with Germany divided into numerous independent states, such as Prussia, Bavaria and Saxony.

The same claim is sometimes made for Yemenite Hebrew or Temanit, which differs from other Mizrahi dialects by having a radically different vowel system, and distinguishing between different diacritically marked consonants that are pronounced identically in other dialects ( for example gimel and " ghimel ".

This period of time is called the Bourbon Restoration and was marked by conflicts between reactionary Ultra-royalists, who wanted to restore the pre-1789 system of absolute monarchy, and liberals, who wanted to strengthen constitutional monarchy.

In economics, Holt's tenure began with the phasing in of Australia's new system of decimal currency, launched on 14 February 1966, and it was marked by a major realignment of commercial and military ties away from the UK and towards the US and Asia.

The 1815 Congress of Vienna marked the formal recognition of the political and international legal system based on the conditions of Europe.

The aftermath of the Battle of Culloden marked the beginning of the end for the clan system and whilst there were marked improvements in living standards for some, these transformations came at a cost for others.

The Zhongyuan Yinyun shows the typical Mandarin four-tone system resulting from a split of the " even " tone and loss of the entering tone, with its syllables distributed across the other tones ( though their different origin is marked in the dictionary ).

Historically, the use of neural networks models marked a paradigm shift in the late eighties from high-level ( symbolic ) artificial intelligence, characterized by expert systems with knowledge embodied in if-then rules, to low-level ( sub-symbolic ) machine learning, characterized by knowledge embodied in the parameters of a dynamical system.

Reaching consensus between the various members was easier under Leonid Brezhnev's rule than under Mikhail Gorbachev, whose rule was marked by radical reform which threatened the interest of several institutional players within the system.

He had a marked influence on Cicero and Quintilian, and through them, on the entire educational system of the west.

Spanish transit is marked by a high degree of integration between its long distance railway system and inner-city metro systems, although the historic use of broad gauge has limited integration with its neighbours.

Large and small distance scales, as well as strong and weak coupling strengths, are quantities that have always marked very distinct limits of behavior of a physical system in both classical field theory and quantum particle physics.

Less marked neurological abnormalities can cause urological disorders as well — for example, abnormalities of the sensory nervous system are thought by many researchers to play a role in disorders of painful or frequent urination ( e. g. painful bladder syndrome, formerly known as interstitial cystitis ).

They are frequently cited as the first instance in American history when people in the homosexual community fought back against a government-sponsored system that persecuted sexual minorities, and they have become the defining event that marked the start of the gay rights movement in the United States and around the world.

Historians debate the significance of the election, with many arguing that it marked the beginning of modern American politics, with the decisive establishment of democracy and the formation of the two-party system.