ELIZA cgi-bash version rev. 1.90
- Medical English LInking keywords finder for the PubMed Zipped Archive (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
320) Factorial analysis of the data revealed statistically significant interaction effects between the mixtures of toxicants on 96-h biomass endpoint, while no significant interaction effects were observed on proline accumulation in the microalga.
--- ABSTRACT ---
PMID:23608979 DOI:10.1007/s11356-013-1679-9
2015 Environmental science and pollution research international
* Interaction effects of polycyclic aromatic hydrocarbons and heavy metals on a soil microalga, Chlorococcum sp. MM11.
- Environmental risk assessment of sites contaminated with chemicals needs to also consider mixtures of chemicals as these toxicants act more differently in a mixture than when they occur alone. In this study, we describe, for the first time, the use of a full factorial design experiment to evaluate the toxicity of a quaternary mixture comprising two polycyclic aromatic hydrocarbons (PAHs; benzo[a]pyrene (BaP) and phenanthrene (Phe)) and two heavy metals (cadmium (Cd) and lead (Pb)) toward a soil microalga, Chlorococcum sp. MM11. Biomass, in terms of cell number, and proline accumulation were used to evaluate toxicity responses. Factorial analysis of the data revealed statistically significant interaction effects between the mixtures of toxicants on 96-h biomass endpoint, while no significant interaction effects were observed on proline accumulation in the microalga. A comparison of the data on the toxicity of individual chemicals and those of the factorial main effect analysis clearly showed that Cd is more toxic to the alga, followed by BaP, Pb, and Phe. There was a substantial heavy metal accumulation and PAH degradation by the strain MM11 at EC10 and EC50 of the chemical mixtures.
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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 ---