Often, security at category X airports, the U. S. largest and busiest as measured by volume of passenger traffic, are provided by private contractors.

Often, the low cost carriers fly to smaller, less congested secondary airports and / or fly to airports in off-peak hours to avoid air traffic delays and taking advantage of lower landing fees.

Often located in public locations ( hotels, schools, airports ), Instant Print Stations handle payments.

Often trees have certain words which, in English, are naturally collocated, such as holly and mistletoe, which usually employ the phrase " sprig of " ( as in, a " sprig of mistletoe ").

Often VoIP implementations employ methods of translating non-E. 164 identifiers to E. 164 numbers and vice-versa, such as the Skype-In service provided by Skype and the ENUM service in IMS and SIP.

Often rural freegans are also " homesteaders " who also raise their own dairy livestock and employ alternative energy sources to provide energy for their homesteads, occasionally living " off the grid " entirely.

Often private equity fund managers will employ the services of external fundraising teams known as placement agents in order to raise capital for their vehicles.

Often a bricklayer would also be the principal contractor, controlling the other trades, and he could avoid the necessity to employ a mason for stonework if he could produce the classical elements in brick.

( Besides mining, other primary activities ( or extractive industries ) are considered material oriented: timber mills, furniture manufacture, most agricultural activities, etc .. Often located in rural areas, these businesses may employ most of the local population.

Often, this type of compression is virtually indistinguishable from the original uncompressed sound or images, depending on the codec and the settings used.

Often this type of graffiti is dated and is left untouched for decades, offering a look into local historical minutiae.

Often informal or formally intrinsic to local religious customs, this type of insurance has survived to the present day in some countries where a modern money economy with its financial instruments is not widespread.

Often used to provide summaries of text of a known type, such as articles in the financial section of a newspaper.

Often a reactor of this type would use a lead-bismuth eutectic mixture.

Often one is interested in the case where then N particles are all of the same type ( for example, the 18 electrons orbiting a neutral argon nucleus ).

Often, but not always, and depending on the type of movie, the soundtrack album will contain portions of the score, music composed for dramatic effect as the movie's plot occurs.

Often, if these type of lamps are turned off or lose their power supply, one cannot restrike the lamp again for several minutes ( called cold restrike lamps ).

Often, the rock stratum just below the more resistant shelf will be of a softer type, meaning that undercutting due to splashback will occur here to form a shallow cave-like formation known as a rock shelter under and behind the waterfall.

Often more than one type of flag is flown simultaneously, for example the flag of Indonesian military.

Often, a 12-month prevalence ( or some other type of " period prevalence ") is used in conjunction with lifetime prevalence.

Often this type of research results in a case study or field study such as an analysis of speech patterns at a protest rally, or the way firemen communicate during " down time " at a fire station.

Often, most or all of the cells of a single cell type will be composed of a single cell line, i. e. The blood may be composed prominently of one cell line, and the internal organs of the other cell line.

Often referred to as " dummy lights ," these installations often replaced beacons or " mushrooms " that denoted the centers of intersections and separated opposing traffic, with the infrastructure used for the beacons and mushrooms serving the new " stop and go " type signals.

Often, stories of this type have as a major theme the nature of reality itself, questioning if the dream-world can have the same " reality " as the waking world.

Often the type of appropriate technology that is used in developed countries is " Appropriate and Sustainable Technology " ( AST ); or appropriate technology that, besides being functional and relatively cheap ( though often more expensive than true AT ), is also very durable and lasts a long time ( AT does not include this ; see Sustainable design ).

Often this type of book is published in the vanity press, which means that the author is paying to have the book published.

Often these tags are folded into the type as " reserved values ", and their occurrence is not consistently checked: this is a fairly common source of programming errors.

Often featuring national leaders in politics and public life as guests, this type of program originated in the United States, and has since been used in other countries.

Often the preferred term for this type of purist is a Star Wars fundamentalist.

Often people use the word " overall " for the bib type garment only and not for a boilersuit.

Often the narrator is self-dehumanized in order to make the narrative more neutral ; this type of narrative mode, outside of fiction, is often employed by newspaper articles, biographical documents, and scientific journals.

Often the value or type designation of the component is given on the diagram beside the part, but detailed specifications would go on the parts list.

Often, neuroethologists choose to study animals that are “ specialists ” in a particular type of behavior the researcher wishes to study ( i. e. honeybees and their social behavior, bat echolocation, owl sound localization ).

Often, a type of a value is denoted together with its effect as type!

Often, the entire group was entirely left out of analyses, being small and seemingly insignificant in the large pattern of bird evolution ( e. g. Barker et al.

Often, the bird takes off with a loud clattering.

Often depicted as a winged deer, the peryton is said to have the head, neck, forelegs and antlers of a stag, combined with the plumage, wings and hindquarters of a large bird, although some interpretations portray the peryton as a deer in all but coloration and bird's wings.

Often bites are not intentional ; for example, if the bird slips from the owner's shoulder, it is likely to try to grab the nearest thing to hold on to, which may well be part of the owner's face.

Often, the boys gave a feather from the bird to patrons for good luck.

Often called a fire alarm whistle, wildcat whistle, or mocking bird whistle.

Often found in early medieval work, the significance of the bird symbolizes either a soul or the Holy Spirit.

Often, another slit is placed near the thin end of the jess cut about one inch long and running lengthwise, through which a special type of swivel is fitted, preventing the whole arrangement from twisting or tangling about itself or the bird when a leash is threaded through the other end.

Often there is a bird, though in modern performances of the act it is usually fake, inside the cage.