ELIZA

return kwic search for observed out of >500 occurrences
392826 occurrences (No.45 in the rank) during 5 years in the PubMed. [no cache] 500 found

418) Significant differences in 48-hour kitchen concentrations of particulate matter (PM2.5), carbon monoxide (CO), and nitrogen dioxide (NO2) concentrations were observed across fuel types (p < 0.05).

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PMID:24215174 DOI:10.1080/19338244.2013.807761

2015 Archives of environmental & occupational health

* Exposure of pregnant women to cookstove-related household air pollution in urban and periurban Trujillo, Peru.

- Although evidence suggests associations between maternal exposure to air pollution and adverse birth outcomes, pregnant women's exposure to household air pollution in developing countries is understudied. Personal exposures of pregnant women (N = 100) in Trujillo, Peru, to air pollutants and their indoor concentrations were measured. The effects of stove-use-related characteristics and ambient air pollution on exposure were determined using mixed-effects models. Significant differences in 48-hour kitchen concentrations of particulate matter (PM2.5), carbon monoxide (CO), and nitrogen dioxide (NO2) concentrations were observed across fuel types (p < 0.05). Geometric mean PM2.5 concentrations where 112 μg/m(3) (confidence limits [CLs]: 52, 242 μg/m(3)) and 42 μg/m(3) (21, 82 μg/m(3)) in homes where wood and gas were used, respectively. PM2.5 exposure was at levels that recent exposure-response analyses suggest may not result in substantial reduction in health risks even in homes where cleaner burning gas stoves were used.

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(1)155 in	(9)9 on	(17)4 a	(25)2 data
(2)48 null	(10)8 by	(18)4 during	(26)2 experimentally
(3)36 that	(11)8 to	(19)4 the	(27)2 reduction
(4)19 for	(12)8 when	(20)3 variation	(28)2 significant
(5)18 at	(13)6 among	(21)2 as	(29)2 through
(6)16 between	(14)6 following	(22)2 changes	(30)2 throughout
(7)11 with	(15)5 after	(23)2 clinical	(31)2 up
(8)9 and	(16)5 from	(24)2 compared	(32)2 using

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--- WordNet output for observed --- Overview of verb observe The verb observe has 9 senses (first 8 from tagged texts) 1. (39) detect, observe, find, discover, notice -- (discover or determine the existence, presence, or fact of; "She detected high levels of lead in her drinking water"; "We found traces of lead in the paint") 2. (17) note, observe, mention, remark -- (make mention of; "She observed that his presentation took up too much time"; "They noted that it was a fine day to go sailing") 3. (12) note, take note, observe -- (observe with care or pay close attention to; "Take note of this chemical reaction") 4. (10) observe -- (watch attentively; "Please observe the reaction of these two chemicals") 5. (4) respect, honor, honour, abide by, observe -- (show respect towards; "honor your parents!") 6. (3) observe, celebrate, keep -- (behave as expected during of holidays or rites; "Keep the commandments"; "celebrate Christmas"; "Observe Yom Kippur") 7. (2) watch, observe, follow, watch over, keep an eye on -- (follow with the eyes or the mind; "Keep an eye on the baby, please!"; "The world is watching Sarajevo"; "She followed the men with the binoculars") 8. (1) observe, keep, maintain -- (stick to correctly or closely; "The pianist kept time with the metronome"; "keep count"; "I cannot keep track of all my employees") 9. observe, keep -- (conform one's action or practice to; "keep appointments"; "she never keeps her promises"; "We kept to the original conditions of the contract") Overview of adj observed The adj observed has 1 sense (first 1 from tagged texts) 1. (7) ascertained, discovered, observed -- (discovered or determined by scientific observation; "variation in the ascertained flux depends on a number of factors"; "the discovered behavior norms"; "discovered differences in achievement"; "no explanation for the observed phenomena") --- WordNet end ---