ELIZA

return kwic search for there out of >500 occurrences
271290 occurrences (No.96 in the rank) during 5 years in the PubMed. [no cache] 500 found

272) There were 132 quartz tungsten halogen (QTH) units and 64 light-emitting diode units.

--- ABSTRACT ---

PMID:23700081 DOI:10.1007/s10103-013-1351-0

2015 Lasers in medical science

* A survey of power density of light-curing units used in private dental offices in Changchun City, China.

- This study investigated power density and relevant information related to light-curing units used in private dental offices in Changchun City, China. The power density of 196 light-curing units used in private dental offices in Changchun City was measured using a simple random sampling method. Relevant information included the brand, type, years of operation, frequency of use, model numbers and types of light guide, resin buildup on the light guides, damage caused by the light guides, required maintenance of the curing lights, and ratio of the unit and chair number. There were 132 quartz tungsten halogen (QTH) units and 64 light-emitting diode units. The power density range was defined as 0-1,730 mW/cm(2). The mean power density was 453.1 mW/cm(2). The mean years of operation of the light-curing units were 3.96. The majority of dentists never tested the power density of the light-curing units and a considerable number of light guide surfaces showed resin buildup and damage. In Changchun City, the majority of light-curing units were QTH. Some units needed to be replaced due to aging. The majority of dentists were not aware that the light-curing units require periodic testing and maintenance. The data herein indicate the importance of periodic testing of the power density of light-curing units and timely replacement of the components and then guarantee the quality of medical services and their benefits to patients.

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[frequency of next (right) word to there]

(1)138 was	(4)83 are	(7)4 null	(10)2 appears
(2)132 is	(5)20 have	(8)3 exists	(11)2 exist
(3)86 were	(6)18 has	(9)3 may

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--- WordNet output for there --- =>1.その場所で, そこに(で), そこへ, 2.〜がある, その場所で Overview of noun there The noun there has 1 sense (no senses from tagged texts) 1. there -- (a location other than here; that place; "you can take it from there") Overview of adv there The adv there has 3 senses (first 3 from tagged texts) 1. (181) there, at that place, in that location -- (in or at that place; "they have lived there for years"; "it's not there"; "that man there") 2. (6) there, in that respect, on that point -- (in that matter; "I agree with you there") 3. (2) there, thither -- (to or toward that place; away from the speaker; "go there around noon!") --- WordNet end ---