Epicurus is a key figure in the development of science and the scientific method because of his insistence that nothing should be believed, except that which was tested through direct observation and logical deduction.

The key observation hinged on on a repeatably greater radioactivity seen on a wooden table top than on an Italian marble table top, in Fermi's laboratory.

A key observation of falsificiationism is thus that a criterion of demarcation is needed to distinguish those statements that can come in conflict with observation and those that cannot ( Chorlton, 2012 ).

The key observation is that, ordinarily, most of the chlorine in the stratosphere resides in stable " reservoir " compounds, primarily hydrochloric acid ( HCl ) and chlorine nitrate ().

This allowed him to show a correspondence between statements about natural numbers and statements about the provability of theorems about natural numbers, the key observation of the proof.

The key observation that led to the adoption of unified models for powerful radio galaxies and radio-loud quasars was that all quasars appear to be beamed towards us, showing superluminal motion in the cores and bright jets on the side of the source nearest to us ( the Laing-Garrington effect :).

His key observation was that these axioms provide an abstraction of " independence " that is common to both graphs and matrices.

A key element in Schön's claimed successful observation of various physical phenomena in organic materials was in the transistor setup.

A key observation is that rate depends on the decision boundaries and the codeword lengths, whereas the distortion depends on the decision boundaries and the reconstruction levels.

The key ingredient in the proof was the observation that for the

A key observation is that the zero-crossings of the second derivatives ( minima and maxima of the first derivative or slope ) of multi-scale-smoothed versions of a signal form a nesting tree, which defines hierarchical relations between segments at different scales.

The key observation is that near a phase transition or critical point, fluctuations occur at all length scales, and thus one should look for an explicitly scale-invariant theory to describe the phenomena.

The key observation is that at a phase transition or critical point, fluctuations occur at all length scales, and thus one should look for a scale-invariant statistical field theory to describe the phenomena.

The key observation is that, for all of these different systems, the behaviour resembles a phase transition, and that the language of statistical mechanics and scale-invariant statistical field theory may be applied to describe them.

By March 1915, a two seater on " artillery observation " duties was typically equipped with a primitive radio transmitter transmitting the dots and dashes of a Morse key, but had no receiver.

The observation over such long periods of time has never been done in previous missions to Venus, and is key to a better understanding of the atmospheric dynamics.

Her intention was to train nurses to a qualified and specialized level, with the key aim of learning to develop observation skills and sensitivity to patient needs, then allow them to work in hospital posts across the United Kingdom and abroad.

Using a natural key ( when one can be identified ) also simplifies data quality: It ensures that there can only be one row for a key ; this " one version of the truth " can be verified, because the natural key is based on a real-world observation.

A key point is that, on large scales, our universe appears to be constructed along very simple lines: All current observations suggest that, on average, the structure of the cosmos should be approximately the same, regardless of an observer's location or direction of observation: the universe is approximately homogeneous and isotropic.

The Carter Center, for example, played a key role — with the United Nations Electoral Assistance Division and the National Democratic Institute — in building consensus on a common set of international principles for election observation.

I have just asked these questions in the Pentagon, in the White House, in offices of key scientists across the country and aboard the submarines that prowl for months underwater, with neat rows of green launch tubes which contain Polaris missiles and which are affectionately known as `` Sherwood Forest ''.

The symposium provides an opportunity to confront the self with specific statements which were made at particular times by identifiable communicators who were addressing definite audiences -- and throughout several hundred pages everyone is talking about the same key symbol of identification.

When he was bent over behind the wheel of the station wagon, feeling in his trouser cuffs for the ignition key which he had dropped a moment before, she came out of the house with an enormous Rumanian shawl over her head, which she had bought in that country during one of their trips abroad, and handed him a clean handkerchief through the window.

The long-range objective is to bring about consolidation of ownership through use of land exchange authority and through purchase on a moderate scale of inholdings which comprise key tracts for recognized National Forest programs such as recreation development, or which are a source of damage to lands in National Forests and National Grasslands.

Over a relatively short period of time, usually about four to twelve weeks, the worker must be able to shift the focus, back and forth, between immediate external stressful exigencies ( `` precipitating stress '' ) and the key, emotionally relevant issues ( `` underlying problem '' ) which are, often in a dramatic preconscious breakthrough, reactivated by the crisis situation, and hence once again amenable to resolution.

Similarities to the approach which I have described are evident in the prompt establishment of a helping relationship, quick appraisal of key issues, and the immediate mobilization of treatment plans as the essential dynamics in helping to further the ego's coping efforts in dealing with the interplay of inner and outer stresses.

In order to focus clearly upon the operation of this one force, which we may call the effect of `` public-limit pricing '' on `` key '' wage bargains, we deliberately simplify the model by abstracting from other forces, such as union power, which may be relevant in an actual situation.

Pulley had set her up at the Semiramis Hotel, but she grew impatient waiting for a royal reception and moved to a luxurious apartment to which the royal pimp had no key.

Mr. Schaefer also recommended that the snow emergency route plan, under which parking is banned on key streets and cars are required to use snow tires or chains on them, should be `` strictly enforced ''.

A publicity release from Oregon Physicians Service, of which Harvey is president, quoted him as saying the welfare office move to Salem, instead of `` crippling '' the agency, had provided an avenue to correct administrative weaknesses, with the key being improved communications between F & A and the commission staff.

and one U.S. official said: `` The key question now is which side picks up the phone first ''.

The committee debated the possibility of a shift key function ( like the Baudot code ), which would allow more than 64 codes to be represented by six bits.

A key text is Jeff Nuttall's book Bomb Culture ( 1968 ), which traced this pervasive theme in popular culture back to Hiroshima.

A key problem in the design of good algorithms for this problem is that formulas for the variance may involve sums of squares, which can lead to numerical instability as well as to arithmetic overflow when dealing with large values.

In July 1992, Azerbaijan ratified the Treaty on Conventional Armed Forces in Europe ( CFE ), which establishes comprehensive limits on key categories of conventional military equipment.

AES is a variant of Rijndael which has a fixed block size of 128 bits, and a key size of 128, 192, or 256 bits.

He desired to invade Africa, which, thanks to its grain, had become the key to holding Italy.

His reign was marred by a constitutional struggle with the Aragonese nobles, which eventually culminated in the articles of the Union of Aragon-the so-called " Magna Carta of Aragon ", which devolved several key royal powers into the hands of lesser nobles.

Ambergris is key to the Ian Cameron novel The Lost Ones, from which came the 1974 Disney film, The Island at the Top of the World.

The Book of Amos contains several different key activities and genres which are used to expound upon its themes.

The key difference between specific phobias and social phobias is social phobias include fear of public situations and scrutiny which leads to embarrassment or humiliation in the diagnostic criteria.

However, a more careful examination of the existing literature leads to a more comprehensive understanding of what should be the key critical supply chain components, the " branches " of the previous identified supply chain business processes, that is, what kind of relationship the components may have that are related to suppliers and customers.

The key allows Klaymen to open a door on the ground level of the lair that leads to Klogg.

For some happenings, everyone present is included in the making of the art and even the form of the art depends on audience engagement, for they are a key factor in where the performers ' spontaneity leads.

A change of key to E major leads to the first prophecy, delivered by the tenor whose vocal line in the opening recitative " Comfort ye " is entirely independent of the strings accompaniment.

He explicitly locates his theory within Charles Darwin's Theory of Natural Selection, citing the key tenets of Darwin's population theory, which postulates that individual variation within species provides the basis for the natural selection that eventually leads to the evolution of new species.

The Australian Antarctic Division leads the Australian Antarctic program ( AAp ) with four key goals:

This leads to a third key aspect of what the concept of the ideograph offers to rhetorical critics.

The hypothesis leads to the conclusion that only a few key species are necessary for a healthy ecosystem.

A recurrent characteristic is the usage of major-only chord sequences ( Sweet Euphoria, Pretty Noose ), which also leads to more subtle key changes.

When the storm subsides, still in the minor key, the piano plays a transitional motif that leads to the key of G-Flat major, before the Cello comes in to reprise, in the wrong key, and knowing that it has to get back to B-flat major, the piano and the orchestra make a transition to finish off the theme in its original home key of B-flat major.

* February 11-Anthracite coal is first burned as fuel by Jesse Fell in Wilkes-Barre, Pennsylvania ; the discovery leads to the use of coal as a key fuel source of the industrial revolution in the United States.

In some cities in the Netherlands, Belgium and Germany, the key to the city is given to the so-called " Prince carnival " who leads the carnivals which take place the week prior to Septuagesima.

Thunderbird leads the revived X-Men members into looking for a diary written by Destiny that might hold the key to defeating Amatsu-Mikaboshi while evading Carrion Crow, Eater of the Dead.

* by default, WEP relies on a single shared key among users, which leads to practical problems in handling compromises, which often leads to ignoring compromises.

The behavior of the Walker cell is the key to the riddle, and leads to an understanding of the El Niño ( more accurately, ENSO or El Niño-Southern Oscillation ) phenomenon.

The Alliance came to an end in the middle of Season 2 ( Episode 13, " Phase One ") of Alias when Sydney stumbles upon information, with Sark's aid, that leads her and Vaughn to believe there is one master server, server 47 ( in keeping with the Rambaldi sub-plot of the show, where 47 is a key number in Rambaldi's works ), which could potentially have all the information the CIA would need to shut down all of the SD cells simultaneously, thus acting as a sort of ' silver bullet ' to the cell-like nature of the Alliance.

As some first world countries struggle to compete in traditional markets such as manufacturing, many now see the creative industries as a key component in a new knowledge economy, capable perhaps of delivering urban regeneration, often through initiatives linked to exploitation of cultural heritage that leads to increased tourism.

The expansion of the submucosa leads to elevation of the mucosa above the surrounding tissue, which is apparent during endoscopy and is a key diagnostic feature.

Using weak keys, the outcome of the Permuted Choice 1 ( PC1 ) in the DES key schedule leads to round keys being either all zeros, all ones or alternating zero-one patterns.