Some other or private operators exist, as Scarlet ( Belgacom ) and BASE ( KPN ).

Some large operators also converted retired buses into tow bus vehicles, to act as tow trucks.

Some properties of this notation are convenient since we are dealing with linear operators and composition acts like a ring multiplication.

Some first class bus operators ( such as Litegua between Guatemala City and Puerto Barrios, Fuente del Norte between Guatemala City and Flores, and Monja Blanca to Cobán ) run safe, modern air-conditioned buses for longer distances.

Some operators of hydrofoil include:

Some private rural operators exist, such as Halpenny's in Blackrock, County Louth, which was the first private bus operator to run a public service in Ireland, Bus Feda ( Feda O ' Donnell Coaches ), which operates twice daily routes from Ranafast, County Donegal to Galway and back, and Lough Swilly Bus Company.

Some German operators started to implement Next Generation Networking, generally realized via DSL and unbundled local loop.

Some of the companies have a full monopoly warranted by law ( like landline telephony, water ), others compete freely with private operators ( Insurance, mobile telephony, Banks ).

Some operators ( see example from Vimpelcom Group subsidiary Kartel ) report DM activity of 50 over-the-air settings update files per second.

Some of these include creating networks of overlapping routes even among different operators to give people more choice in where and how they want to go somewhere.

Some of the transmissions Komarov made were recorded by amateur radio operators like Sven Grahn.

Some computer chess operators have pointed out that endgame tablebases have the potential to weaken performance strength in chess computers if incorrectly used.

Some people can process multiple stimuli, e. g. trained morse code operators have been able to copy 100 % of a message while carrying on a meaningful conversation.

Some in the spotter community have also discussed the next step in spotting and to include non-Amateur radio operators in Skywarn operations.

Some of them prevailed and strengthened their position on the market, being able to compete with multinational tour operators like TUI, or Neckermann und Reisen with branches in Poland.

Some but not all of the above generalize to normal operators on infinite-dimensional Hilbert spaces.

Some modes of communication, such as continuous wave morse code transmissions ( especially by amateur radio operators ) and single sideband voice transmissions are more common in the HF range than on other frequencies, because of their bandwidth-conserving nature, but broadband modes, such as TV transmissions, are generally prohibited by HF's relatively small chunk of electromagnetic spectrum space.

Some maquiladora operators have admitted a preference for women also because women often display a greater level of patience and higher dexterity than men in performing the repetitive work of an assembly plant.

Some bus lines still have the word " stage " in their names, though it is difficult to say whether such usages come from actual corporate descent from predecessor stagecoach operators, or is just a marketing strategy.

Some users are foundry operators, who operate the semiconductor fabrication facilities, or " fabs ", and design-service companies who use EDA software to evaluate an incoming design for manufacturing readiness.

Some operators also charge a separate fee for call setup i. e. for the establishment of a call.

Some numbers are so large that multiple arrows of Knuth's up-arrow notation become too cumbersome ; then an n-arrow operator is useful ( and also for descriptions with a variable number of arrows ), or equivalently, hyper operators.

Some taxi operators have expressed concerns about replacing the roomy Crown Victoria with smaller, more compact vehicles, due to a " bumpier, more cramped ride " and " knee-bumping back seats and flimsier frames ".

Some website operators have adapted Google bombing techniques to do spamdexing.

Some bulldozers have been fitted with armor by non-government civilian operators to prevent bystanders or police from interfering with the work performed by the bulldozer, as in the case of strikes or demolition of condemned buildings.

Some 45 frequencies are assigned for use primarily by dominant Class 1, -- A or Class 1, -- B clear-channel stations, designed to operate with adequate power and to provide service -- both groundwave and ( at night ) skywave -- over large areas and at great distances, being protected against interference to the degree necessary to achieve this objective.

Some cases in evidence of the use of roleplaying for analysis may help explain the procedure.

Some of Thurber's curative methods involve strong potions of mixed metaphor, malapropism, and gobbledygook and are recommended for use only in extreme cases.

Some popular designs use the following types of ANOVA:

Some sources mention the use of an abacus called a nepohualtzintzin in ancient Mayan culture.

Some adaptations of the Latin alphabet are augmented with ligatures, such as æ in Old English and Icelandic and Ȣ in Algonquian ; by borrowings from other alphabets, such as the thorn þ in Old English and Icelandic, which came from the Futhark runes ; and by modifying existing letters, such as the eth ð of Old English and Icelandic, which is a modified d. Other alphabets only use a subset of the Latin alphabet, such as Hawaiian, and Italian, which uses the letters j, k, x, y and w only in foreign words.

Some amateur astronomers use home-made radio telescopes, while others use radio telescopes that were originally built for astronomy research but have since been made available for use by amateurs.

Some may suggest that it is probably advisable to use mouthwash at least an hour after brushing with toothpaste when the toothpaste contains sodium lauryl sulfate, since the anionic compounds in the SLS toothpaste can deactivate cationic agents present in the mouthrinse.

Some results in constructive set theory use the axiom of countable choice or the axiom of dependent choice, which do not imply the law of the excluded middle in constructive set theory.

Some abugidas use a special symbol to suppress the inherent vowel so that the consonant alone can be properly represented.

Some modern descendants of this culture often choose to use the term " Ancestral Pueblo " peoples.

Some of the Australians wanted to use Bodyline in retaliation, but Woodfull flatly refused.

Some hard science fiction stories use small ( possibly nano-sized ) paired wormholes dedicated to communication by means of a laser which traverses the wormhole.

( Some newer protocols, such as Kerberos and Active Directory use DNS SRV records to identify services by name, which is much closer to the AppleTalk model.

Some consider such use of the term " incorrect.

Some natural tolerance to habitual use of ayahuasca ( roughly once weekly ) may develop through upregulation of the serotonergic system.

Some reports and scientific studies affirm that ritualized use of ayahuasca may improve mental and physical health.

Some Protestant US military chaplains carry the Roman Rite version of the Anointing of the Sick with them for use if called upon to assist wounded or dying soldiers who are Catholics.

Some Nasheed singers avoid instruments in the background due to the opinion of certain scholars that their use is prohibited.

Some guns were suitable for dual-role anti-aircraft and field ( anti-tank ) use.

Some studies have found decreased life expectancy associated with the use of antipsychotics, and argued that more studies are needed.

Some doubts have been raised about the long-term effectiveness of antipsychotics for schizophrenia, in part because two large international World Health Organization studies found individuals diagnosed with schizophrenia tend to have better long-term outcomes in developing countries ( where there is lower availability and use of antipsychotics and mental health problems are treated with more informal, community-led methods only ) than in developed countries.

Some critics have also analyzed the use of alleged front organizations and conflicted patient " advocacy " groups funded by pharmaceutical companies that seek to set the mental health agenda, including the use of the law to force people to take antipsychotics against their will, often justified by claims about risk of violence.