id
stringlengths
14
14
text
stringlengths
9
3.55k
source
stringlengths
1
250
c_ojqqyrdnaf22
In modern philosophy, the coherence theory of truth was defended by Baruch Spinoza, Immanuel Kant, Johann Gottlieb Fichte, Karl Wilhelm Friedrich Schlegel, and Georg Wilhelm Friedrich Hegel and Harold Henry Joachim (who is credited with the definitive formulation of the theory). However, Spinoza and Kant have also been...
Epistemic coherentism
c_hwtj18kl4dud
In modern physical cosmology, the cosmological principle is the notion that the spatial distribution of matter in the universe is equally distributed and isotropic when viewed on a large enough scale, since the forces are expected to act equally throughout the universes on a large scale, and should, therefore, produce ...
Cosmological Principle
c_ha00b7nq670l
In modern physics (especially general relativity) spacetime is represented by a Lorentzian manifold. The causal relations between points in the manifold are interpreted as describing which events in spacetime can influence which other events. The causal structure of an arbitrary (possibly curved) Lorentzian manifold is...
Future null infinity
c_n4km9o2rjzcj
In modern physics (which is based on the theory of relativity and quantum mechanics), the aether as a "material substance" with a "state of motion" no longer plays any role. So questions concerning a possible "aether drag" are no longer considered meaningful by the scientific community. However, frame-dragging as predi...
Hamar experiment
c_gzzcwpkmbuhe
In modern physics, all fundamental particles are regarded as excitations of quantum fields. There are several distinct ways in which tachyonic particles could be embedded into a field theory.
Tachyon
c_pep1vbz2p97a
In modern physics, antimatter is defined as matter composed of the antiparticles (or "partners") of the corresponding particles in "ordinary" matter, and can be thought of as matter with reversed charge, parity, and time, known as CPT reversal. Antimatter occurs in natural processes like cosmic ray collisions and some ...
Anti matter
c_qmc9kq35zngy
In theory, a particle and its antiparticle (for example, a proton and an antiproton) have the same mass, but opposite electric charge, and other differences in quantum numbers. A collision between any particle and its anti-particle partner leads to their mutual annihilation, giving rise to various proportions of intens...
Anti matter
c_nl8ve5da28gy
If surrounding matter is present, the energy content of this radiation will be absorbed and converted into other forms of energy, such as heat or light. The amount of energy released is usually proportional to the total mass of the collided matter and antimatter, in accordance with the notable mass–energy equivalence e...
Anti matter
c_hmz8hb56kh3s
The nuclei of antihelium have been artificially produced, albeit with difficulty, and are the most complex anti-nuclei so far observed. Physical principles indicate that complex antimatter atomic nuclei are possible, as well as anti-atoms corresponding to the known chemical elements. There is strong evidence that the o...
Anti matter
c_b5yzyz2riw6z
In modern physics, general relativity remains the framework for the understanding of gravity. Physicists continue to work to find solutions to the Einstein field equations that form the basis of general relativity, while some scientists have speculated that general relativity may not be applicable at all in certain sce...
Gravitational physics
c_u6856942tps3
In modern physics, the double-slit experiment demonstrates that light and matter can satisfy the seemingly-incongruous classical definitions for both waves and particles, which is considered evidence for the fundamentally probabilistic nature of quantum mechanics. This type of experiment was first performed by Thomas Y...
Slit experiment
c_ywt2ydtc8njc
In 1927, Davisson and Germer and, independently George Paget Thomson and Alexander Reid demonstrated that electrons show the same behavior, which was later extended to atoms and molecules. Thomas Young's experiment with light was part of classical physics long before the development of quantum mechanics and the concept...
Slit experiment
c_67ygokw9bhd7
The experiment belongs to a general class of "double path" experiments, in which a wave is split into two separate waves (the wave is typically made of many photons and better referred to as a wave front, not to be confused with the wave properties of the individual photon) that later combine into a single wave. Change...
Slit experiment
c_jpf352s3kctc
The wave nature of light causes the light waves passing through the two slits to interfere, producing bright and dark bands on the screen – a result that would not be expected if light consisted of classical particles. However, the light is always found to be absorbed at the screen at discrete points, as individual par...
Slit experiment
c_mp4svw0owcwv
However, such experiments demonstrate that particles do not form the interference pattern if one detects which slit they pass through. These results demonstrate the principle of wave–particle duality.Other atomic-scale entities, such as electrons, are found to exhibit the same behavior when fired towards a double slit.
Slit experiment
c_jnh2qegh4g8e
Additionally, the detection of individual discrete impacts is observed to be inherently probabilistic, which is inexplicable using classical mechanics.The experiment can be done with entities much larger than electrons and photons, although it becomes more difficult as size increases. The largest entities for which the...
Slit experiment
c_vwltcjd2l0ie
In modern physics, the electromagnetic field is understood to be not a classical field, but rather a quantum field; it is represented not as a vector of three numbers at each point, but as a vector of three quantum operators at each point. The most accurate modern description of the electromagnetic interaction (and muc...
Magnetic Field
c_xn0fvhykep1a
Predictions of QED agree with experiments to an extremely high degree of accuracy: currently about 10−12 (and limited by experimental errors); for details see precision tests of QED. This makes QED one of the most accurate physical theories constructed thus far. All equations in this article are in the classical approx...
Magnetic Field
c_qoc4xbb3xaly
In modern plumbing, a drain-waste-vent (or DWV) is a system that allows air to enter the plumbing system to maintain proper air pressure to enable the removal of sewage and greywater from a dwelling. Drain refers to water produced at fixtures such as sinks, and showers; waste refers to water from toilets. As the water ...
Plumbing drainage venting
c_pmxmrw5k2lbm
In modern poetry, Formalist poets may be considered as the opposite of writers of free verse. These are only labels, and rarely sum up matters satisfactorily. 'Formalism' in poetry represents an attachment to poetry that recognises and uses schemes of rhyme and rhythm to create poetic effects and to innovate. To distin...
Formalism (philosophy)
c_dexhy725drqa
In modern police training, the primary targets are large nerve clusters, such as the common peroneal nerve in the mid-thigh and large, easily targetable muscle groups, such as the quadriceps and biceps. The baton is swung in fast, "snapping" strikes to these areas, sometimes only making contact with the tip. Taken toge...
Side-handle baton
c_jsip773ebtxb
Before the 1970s, a common use of the police baton was to strike a suspect's head with a full-force overhand motion in order to stun them or knock them unconscious by cerebral concussion, similar to the pre-baton practice of buffaloing with the handle of a revolver. However, this practice had two major liabilities. Fir...
Side-handle baton
c_efyb76k0od57
Second, there were problems with reliability, as resistance to cerebral concussion varies widely between individuals, and head strikes that did not disable the suspect were found to merely escalate the encounter. Officer Arthur Lamb, a well-known trainer on the baton, once stated: I've trained over 200 police departmen...
Side-handle baton
c_7fchlvbmlsse
In every class, I ask the officers if they've ever seen a subject subdued with one blow to the head. None of them ever have. What you're doing when you hit a man in the head is first, creating a serious danger of death, and second, you're numbing the one part of the body that can stop him.
Side-handle baton
c_4vs0gvyl21p1
If you use my method with one or two strikes and step back, he realizes that the thing has gone against him, and the confrontation is over. But if you hit him in the head and put him into a state of shock where he is almost immune to pain, and now enraged beyond reason, the only thing left for you to do is beat him int...
Side-handle baton
c_t23i50hfym99
In modern politics, a gadfly is someone who persistently challenges people in positions of power, the status quo or a popular position. For example, Morris Kline wrote, "There is a function for the gadfly who poses questions that many specialists would like to overlook. Polemics is healthy."
Social gadfly
c_f8s2djkcg04y
In modern politics, fundamentalism has been associated with right-wing conservative ideology, especially social conservatism. Social conservatives often support policies in line with religious fundamentalism, such as support for school prayer and opposition to LGBT rights and abortion. Conversely, secularism has been a...
Fundamentalist religious
c_9r07v5n9win4
It has been used by political groups to berate opponents, using the term flexibly depending on their political interests. According to Judith Nagata, a professor of Asia Research Institute in the National University of Singapore, "The Afghan mujahiddin, locked in combat with the Soviet enemy in the 1980s, could be prai...
Fundamentalist religious
c_5my1pa7e0z3y
For instance, the Archbishop of Wales has criticized "atheistic fundamentalism" broadly and said "Any kind of fundamentalism, be it Biblical, atheistic or Islamic, is dangerous". He also said, "the new fundamentalism of our age ... leads to the language of expulsion and exclusivity, of extremism and polarisation, and t...
Fundamentalist religious
c_9akie87y16xx
Others have countered that some of these attacks on Christmas are urban legends, not all schools do nativity plays because they choose to perform other traditional plays like A Christmas Carol or "The Snow Queen" and, because of rising tensions between various religions, opening up public spaces to alternate displays r...
Fundamentalist religious
c_mnd4xtyos30h
In modern pop culture and fiction, pieces of eight are most often associated with the popular notion of pirates. In Robert Louis Stevenson's Treasure Island, Long John Silver's parrot had apparently been trained to cry out, "Pieces of eight!" This use tied the coin (and parrots) to fictional depictions of pirates. Deri...
Pieces of eight
c_chg5h24hejbv
In Pirates of the Caribbean: At World's End the Pirate Lords must meet together by presenting the "Nine Pieces of Eight", since these Pieces were used to seal the goddess Calypso in her human form by the first Brethren Court. As the Pirate Lords were, at the time of sealing Calypso into her human form, too poor to offe...
Pieces of eight
c_91zqx6t5j6xl
In Terry Pratchett's "Going Postal" the antagonist, Reacher Gilt had a cockatoo named Alphonse which had been trained to say "Twelve and half percent! ", that is to say a single piece of eight. Pieces of Eight is used as a currency on Monkey Island (series)
Pieces of eight
c_1bcph3978zks
In modern popular culture, the portrayal of earthquakes is shaped by the memory of great cities laid waste, such as Kobe in 1995 or San Francisco in 1906. Fictional earthquakes tend to strike suddenly and without warning. For this reason, stories about earthquakes generally begin with the disaster and focus on its imme...
Seismic activity
c_0oehlfxh0yl3
A notable example is Heinrich von Kleist's classic novella, The Earthquake in Chile, which describes the destruction of Santiago in 1647. Haruki Murakami's short fiction collection After the Quake depicts the consequences of the Kobe earthquake of 1995. The most popular single earthquake in fiction is the hypothetical ...
Seismic activity
c_wlvvcolyui2c
Jacob M. Appel's widely anthologized short story, A Comparative Seismology, features a con artist who convinces an elderly woman that an apocalyptic earthquake is imminent.Contemporary depictions of earthquakes in film are variable in the manner in which they reflect human psychological reactions to the actual trauma t...
Seismic activity
c_yqdr2owyo7v9
In modern popular songs, drums, percussion instruments and electric bass are often among the first instruments to be recorded. These are the core instruments of the rhythm section. Musicians recording later tracks use the precise attack of the drum sounds as a rhythmic guide. In some styles, the drums may be recorded f...
Multi-track recording
c_8rpe1i1sizia
Click (metronome) tracks are also often used as the first sound to be recorded, especially when the drummer is not available for the initial recording, and/or the final mix will be synchronized with motion picture and/or video images. One reason that a band may start with just the drums is because this allows the band ...
Multi-track recording
c_f08644kalwqx
Also, though the drums might eventually be mixed down to a couple of tracks, each individual drum and percussion instrument might be initially recorded to its own individual track. The drums and percussion combined can occupy a large number of tracks utilized in a recording. This is done so that each percussion instrum...
Multi-track recording
c_c9isjgznrgey
Equalization (or EQ) is often used on individual drums, to bring out each one's characteristic sound. The last tracks recorded are often the vocals (though a temporary vocal track may be recorded early on either as a reference or to guide subsequent musicians; this is sometimes called a "guide vocal", "ghost vocal" or ...
Multi-track recording
c_p8fyr9vpd2hv
In modern popular usage, an Epicurean is a connoisseur of the arts of life and the refinements of sensual pleasures; Epicureanism implies a love or knowledgeable enjoyment especially of good food and drink. Because Epicureanism posits that pleasure is the ultimate good (telos), it has been commonly misunderstood since ...
Epicureanism
c_ex2go2bub5jl
He also considered prudence an important virtue and perceived excess and overindulgence to be contrary to the attainment of ataraxia and aponia. Epicurus preferred "the good", and "even wisdom and culture", to the "pleasure of the stomach".While Epicurus sought moderation at meals, he was also not averse to moderation ...
Epicureanism
c_lkeo8shvzdip
In modern portfolio theory, risk aversion is measured as the additional expected reward an investor requires to accept additional risk. If an investor is risk-averse, they will invest in multiple uncertain assets, but only when the predicted return on a portfolio that is uncertain is greater than the predicted return o...
Risk attitude
c_clf8bl7zt65j
In advanced portfolio theory, different kinds of risk are taken into consideration. They are measured as the n-th root of the n-th central moment. The symbol used for risk aversion is A or An. A = d E ( c ) d σ {\displaystyle A={\frac {dE(c)}{d\sigma }}} A n = d E ( c ) d μ n n {\displaystyle A_{n}={\frac {dE(c)}{d{\sq...
Risk attitude
c_41dbvjriavrc
In modern portfolio theory, the efficient frontier (or portfolio frontier) is an investment portfolio which occupies the "efficient" parts of the risk–return spectrum. Formally, it is the set of portfolios which satisfy the condition that no other portfolio exists with a higher expected return but with the same standar...
Efficient frontier
c_s5g70x7riqwi
In modern positional numbers systems, such as the decimal system, the digits and their positions in the representation of an integer, for example, 45, are a shorthand notation for a polynomial in the radix or base, in this case, 4 × 101 + 5 × 100. As another example, in radix 5, a string of digits such as 132 denotes t...
Polynomial curve
c_ffpr17844ovz
Then every positive integer a can be expressed uniquely in the form where m is a nonnegative integer and the r's are integers such that 0 < rm < b and 0 ≤ ri < b for i = 0, 1, . . . , m − 1.
Polynomial curve
c_ngrcaawttbao
In modern practice of ECT a therapeutic clonic seizure is induced by electric current via electrodes placed on a person under general anesthesia. Despite much research the exact mechanism of action of ECT is still not known. ECT carries the risk of temporary cognitive deficits (e.g., confusion, memory problems), in add...
Psychotic depression
c_is35zggjdmeh
In modern practice, a violation of the Compulsory Process Clause leads to the reversal of a conviction unless the original error is "harmless". This occurs because the exclusion of defense evidence can "significantly undermine fundamental elements of the defense". The remedy is not automatic reversal only because not ...
Compulsory Process Clause
c_cy0zovkwrv9l
In modern practice, perhaps the most important distinction between law and equity is the set of remedies each offers. The most common civil remedy a court of law can award is monetary damages. Equity, however, enters injunctions or decrees directing someone either to act or to forbear from acting. Often, this form of r...
Equitable principles
c_elposxipa1aa
However, in general, a litigant cannot obtain equitable relief unless there is "no adequate remedy at law"; that is, a court will not grant an injunction unless monetary damages are an insufficient remedy for the injury in question. Law courts can also enter certain types of immediately enforceable orders, called "writ...
Equitable principles
c_fd40i4y2nu64
In the American legal system, the right of jury trial in civil cases tried in federal court is guaranteed by the Seventh Amendment in Suits at common law, cases that traditionally would have been handled by the law courts. The question of whether a case should be determined by a jury depends largely on the type of reli...
Equitable principles
c_3ynvdlgoht60
On the other hand, if the plaintiff requests an injunction, declaratory judgment, specific performance, modification of contract, or some other non-monetary relief, the claim would usually be one in equity. Thomas Jefferson explained in 1785 that there are three main limitations on the power of a court of equity: "If t...
Equitable principles
c_igd1hyww4pvk
The US Supreme Court, however, has concluded that courts have wide discretion to fashion relief in cases of equity. The first major statement of this power came in Willard v. Tayloe, 75 U.S. 557 (1869).
Equitable principles
c_k0742ura9yiw
The Court concluded that "relief is not a matter of absolute right to either party; it is a matter resting in the discretion of the court, to be exercised upon a consideration of all the circumstances of each particular case." Willard v. Tayloe was for many years the leading case in contract law regarding intent and en...
Equitable principles
c_rz8ap1qxp663
However, the substantive distinction between law and equity has retained its old vitality. This difference is not a mere technicality, because the successful handling of certain law cases is difficult or impossible unless a temporary restraining order (TRO) or preliminary injunction is issued at the outset, to restrain...
Equitable principles
c_j81b4yh0iz99
A serious movement for merger of law and equity began in the states in the mid-19th century, when David Dudley Field II convinced New York State to adopt what became known as the Field Code of 1848. The federal courts did not abandon the old law/equity separation until the promulgation of the Federal Rules of Civil Pro...
Equitable principles
c_tvnho8hbatmf
However, merger in some states is less than complete; some other states (such as Illinois and New Jersey) have separate divisions for legal and equitable matters in a single court. Virginia had separate law and equity dockets (in the same court) until 2006. Besides corporate law, which developed out of the law of trust...
Equitable principles
c_2t95e2xc9gpt
Bankruptcy was also historically considered an equitable matter; although bankruptcy in the United States is today a purely federal matter, reserved entirely to the United States Bankruptcy Courts by the enactment of the United States Bankruptcy Code in 1978, bankruptcy courts are still officially considered "courts of...
Equitable principles
c_s2jvrpao05bl
In modern practice, the Locrian may be considered to be a minor scale with the second and fifth scale degrees lowered a semitone. The Locrian mode may also be considered to be a scale beginning on the seventh scale degree of any Ionian, or major scale. The Locrian mode has the formula: 1, ♭2, ♭3, 4, ♭5, ♭6, ♭7Its tonic...
Locrian mode
c_svf25tsxtubl
In modern presses, a die strikes approximately 120 coins a minute. This is a large number of coins produced in a short time, and obviously the die cannot last forever. However, the process of wearing the die is only hastened by the metals used in coins. Nickel, one of the main metals used in today’s coins, is quite har...
Die-deterioration doubling
c_s57qb7e38k2v
Copper has been used for centuries because of its malleability and the ease with which it makes coins. However, it too wears the dies when they are used for too long.
Die-deterioration doubling
c_lrt9ntg8pcjm
An infamous example is the 1955 "poorman’s double die." This coin is sold as a replacement for the 1955 doubled die cent, but it is no more than Die Deterioration Doubling, caused by wear on the dies. When a coin is struck, the planchet is not heated.
Die-deterioration doubling
c_h83gvj0kysst
Although the planchet would be softer and more malleable, the extra time and expense would prove too great for the Mint. The planchet is therefore struck at room temperature, and the only thing which makes the coin form is the tremendous pressure used to strike it. With a metal such as nickel, which is harder than a no...
Die-deterioration doubling
c_vndjrri5re3e
When a nickel coin, or any coin, is struck, the metal must "flow" into the contours of the front and back dies. It is through the atoms of the metal flowing into the dies that flow lines are created. However, when metal flows over a sharp corner in the die, like the edges of a mintmark or words, it tends to roll the de...
Die-deterioration doubling
c_bg7cr081osfm
It wears on the die, and a little detail is lost with every strike. Die Deterioration Doubling is most prevalent on the date and mintmark because these fine details are alone in the middle of the field, and the metal must flow into these without the help of other valleys nearby. When the metal rolls into the mintmark o...
Die-deterioration doubling
c_z1nvoxsj6eiy
In addition, the mint has a practice of polishing the dies and using them longer. When a die begins to show evidence of wear, a mint technician will polish the die and reuse it. However, the die is still rapidly deteriorating, and polishing it cannot avoid the problem of wear. So, after many thousand coins in rapid suc...
Die-deterioration doubling
c_pimtw0u9reeh
In modern presses, a die strikes approximately 120 coins a minute. This rapid coining causes wear on the dies. Nickel alloys are among the main metals used in today’s coins but they are harder than other legacy coinage metals such as silver and gold alloys and therefore they cause even quicker die wear. Copper and copp...
Coin die
c_kvwn00rit3fv
An infamous example is the 1955 "poorman's double die". This coin is sold as a replacement for the 1955 doubled die, but it is no more than die-deterioration doubling, caused by wear on the dies. When a coin is struck, the planchet is not heated.
Coin die
c_s1yac92e0ola
Although the planchet would be softer and more malleable, the extra time and expense would prove too great for the mint. Thus, the metal cold flows into the die under the high pressure. Mistakes can happen at any stage of this manufacturing process, and these mistakes are something that certain collectors look for.
Coin die
c_jz7ptcq9wipb
Coin errors that occur on the die are generally more desirable than errors made at the time of the strike. For example, a doubled die, where a date or another device appears twice slightly offset, is often a highly desired error. Strike errors are generally unique, whereas all coins struck with an error die will have t...
Coin die
c_iql6vzwtjrnw
This makes them more easily collectible. The most famous doubled die in the past hundred years is the 1955 doubled die Lincoln cent. These trade for hundreds of dollars because the error can easily be seen by a casual observer.
Coin die
c_czm73rulf8qf
Many doubled die errors require at least a jeweler's loupe to be seen. Doubling can occur at the hub stage as well. Some more recent errors are hub doubled. Most famously, there is a 1995 doubled die cent that is hub doubled.
Coin die
c_prvdgqedqm2m
In modern production, hat makers take approximately 30 minutes to complete a single custodian helmet, all of which are made by only four companies: Hobson and Sons (London) Ltd; Christys, of Stockport; Compton Webb (C.W. Headdress Limited), of Oxfordshire; and Helmets Limited, of Wheathampstead.The initial process begi...
Custodian helmet
c_4wnvnnvlphk0
The helmet's fabric covers are made out of water-repellent wool that are cut in halves and stitched together to give the helmet a distinctive centred, front-to-back seam. Moving down the line of production, glue is applied to both the inside of the fabric cover and the outside surface of the helmet shell, the fabric co...
Custodian helmet
c_dhpe7ult7rss
Now halfway through production, the helmet is left to dry for several minutes. Once it is dry, black plastic piping is sewn around the brim of the helmet to reinforce it and give it a neater edge. For rosetop and ball helmet styles, the metal fastening prongs or screws of the chrome fixtures are dipped in chalk to mark...
Custodian helmet
c_wek60zy99w3r
For comb-style helmets, the crest, which has vent holes incorporated into the design, is also fixed by prongs or simply glued into place at the top end of the comb. For all helmet styles, two vent holes are punched on both sides of the helmet and fitted with black metal grommets, making a total of four vent holes. The ...
Custodian helmet
c_vdfut8u658mo
The harness assembly is lowered into the helmet and secured with an industrial stapler. Depending on the helmet style, a broad plastic band, narrow black metal band, narrow chrome metal band, or broad chrome metal band is wrapped around the helmet and pinned down, concealing the staples. For additional protection, a sp...
Custodian helmet
c_uxc1r8ofp67o
Near the end of production, a hole is drilled on the front end of the helmet and an appropriate police helmet plate is screwed on. The helmet then is sized, cleaned, and inspected. Finally, the helmet is labelled and given a good brush to bring up the pile. It is then ready to be shipped on to an awaiting police force.
Custodian helmet
c_716a61i9uqv4
In modern professionalization of political communication (tied to marketing and advertising research), a defining trait of post-truth politics is that campaigners continue to repeat their talking points, even when media outlets, experts in the field in question, and others provide proof that contradicts these talking p...
Post-truth politics
c_btqaf6dvy1a3
Tory MP and Leave campaigner Sarah Wollaston, who left the group in protest during its campaign, criticised its "post-truth politics". The justice secretary Michael Gove controversially claimed in an interview that the British people "Had had enough of experts".Michael Deacon, parliamentary sketchwriter for The Daily T...
Post-truth politics
c_v1imb6l5dwus
Facts are unpatriotic." He added that post-truth politics can also include a claimed rejection of partisanship and negative campaigning.
Post-truth politics
c_jdyflekeel4d
In this context, campaigners can push a utopian "positive campaign" to which rebuttals can be dismissed as smears and scaremongering and opposition as partisan.In its most extreme mode, post-truth politics can make use of conspiracism. In this form of post-truth politics, false rumors (such as the "birther" or "Muslim"...
Post-truth politics
c_g3h93dr3x8ka
In modern protocol design, protocols are layered to form a protocol stack. Layering is a design principle that divides the protocol design task into smaller steps, each of which accomplishes a specific part, interacting with the other parts of the protocol only in a small number of well-defined ways. Layering allows th...
Communications protocol
c_iprn6bhup4z5
Internet protocols are designed for simplicity and modularity and fit into a coarse hierarchy of functional layers defined in the Internet Protocol Suite. The first two cooperating protocols, the Transmission Control Protocol (TCP) and the Internet Protocol (IP) resulted from the decomposition of the original Transmiss...
Communications protocol
c_uzk4wda4h0np
Typically, application software is built upon a robust data transport layer. Underlying this transport layer is a datagram delivery and routing mechanism that is typically connectionless in the Internet.
Communications protocol
c_8r3jdch1q48r
Packet relaying across networks happens over another layer that involves only network link technologies, which are often specific to certain physical layer technologies, such as Ethernet. Layering provides opportunities to exchange technologies when needed, for example, protocols are often stacked in a tunneling arrang...
Communications protocol
c_760ai5gsrzjm
In modern psychological research, meditation has been defined and characterized in various ways. Many of these emphasize the role of attention and characterize the practice of meditation as attempts to get beyond the reflexive, "discursive thinking" or "logic" mind to achieve a deeper, more devout, or more relaxed stat...
Guided meditation
c_6fczfa1s3vp1
In modern racing leagues, if a track does not have adequate safety preparations including proper run-off areas, racers will often threaten to boycott any events that visit that particular track. In actuality, the racing leagues in question have safety standards to which they hold tracks when selecting them; therefore, ...
Run-off area
c_o6bzmda225by
By making the facility as attractive as possible to racers, the hope is that the racers will put pressure on the leagues in which they participate to race at that venue. The other theory is that by making the venue as up-to-date, luxurious, safe, and feature-rich as possible, that various racing leagues will want to ho...
Run-off area
c_d6ly71ar4cva
Therefore, making safety improvements makes financial sense to a track's management, since it leads to greater demand from event promoters and even larger and more popular events, which in turn increase a track's gate revenues, advertising revenues, and revenues from club racers and other users of the track while major...
Run-off area
c_d378ohrn86lu
Until racers became actively involved with promoting race track safety, there was no market pressure on the tracks to make such improvements. Now that safety measures are an integral part of the demand equation (with the racing leagues being the consumers and the tracks being the suppliers), tracks must be competitive ...
Run-off area
c_d26c5fiur4xv
In modern radio systems, modulated signals are generated via digital signal processing (DSP). With DSP many types of AM are possible with software control (including DSB with carrier, SSB suppressed-carrier and independent sideband, or ISB). Calculated digital samples are converted to voltages with a digital-to-analog ...
Amplitude modulated
c_tguo27nm4g2o
In modern releases of Windows, domains have been supplemented by the use of Active Directory services. In Active Directory domains, the concept of primary and secondary domain controller relationships no longer applies. PDC emulators hold the accounts databases and administrative tools. As a result, a heavy workload ca...
Backup Domain Controller
c_t79eos89scc9
The DNS service may be installed on a secondary emulator machine to relieve the workload on the PDC emulator. The same rules apply; only one PDC may exist on a domain, but multiple replication servers may still be used. The PDC emulator master acts in place of the PDC if there are Windows NT 4.0 domain controllers (BDC...
Backup Domain Controller
c_k5lka874efjv
The PDC emulator master receives preferential replication of password changes within the domain. As password changes take time to replicate across all the domain controllers in an Active Directory domain, the PDC emulator master receives notification of password changes immediately, and if a logon attempt fails at anot...
Backup Domain Controller
c_ohdr84r9df7i
In modern rock music, a rhythm guitarist specializes in rhythmic and chordal playing (as opposed to the melodic guitar solos and lead melody lines played by the lead guitar), often repeating quaver (eighth-note), half note or whole note chords. In the louder genres, such as hard rock, heavy metal and punk rock, rhythm ...
Rhythm section
c_hewcygdiamkh
Although rhythm sections spend much of the time providing accompaniment (backing parts) for songs, in some cases, they provide other musical roles. In some songs or styles of music, instruments from the rhythm section may play soloistic roles on occasion (e.g., improvised guitar solos or solo breaks) or play a melodic ...
Rhythm section
c_zf6q6pe51n7q
However, since rhythm sections provide the underpinning for a good performance by the lead instruments and vocalists, good rhythm sections are valued in the music industry. Some of the most accomplished rhythm sections have become famous, such as The Band, the E Street Band and Sly Dunbar and Robbie Shakespeare (the la...
Rhythm section
c_mpv22ajot56p
In almost all genres of popular music and traditional music that use rhythm sections, ranging from rock to country to jazz, the rhythm section members are expected to be able to improvise (make up) their parts or prepare their own parts for a given song by listening to the CD at home. Once the bassist and chord-playing...
Rhythm section