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51.
52.
Mohd Imran Khan Iqbal Ahmad Abbas Ali Mahdi Mohd Javed Akhtar Najmul Islam Mohd Ashquin Thuppil Venkatesh 《Environmental science and pollution research international》2010,17(7):1347-1354
Background, aim, and scope
Lead, a major contaminant, is highly used in paint manufacturing due to its anticorrosive properties. Recent reports indicated high lead content among Indian paints used for commercial purposes. Painters are continuously exposed to these lead containing paints during painting of both commercial as well as residential buildings. Lead is well-known for its genotoxicty in occupational workers; however, in Indian painters the genotoxic effects of lead have not been reported to date. Therefore we aimed to study the genotoxic end points in painters due to their long-term exposure to these high lead-containing Indian paints. 相似文献53.
Stem and leaf homogenates from tobacco plants metabolised deltamethrin by oxidative and hydrolytic actions on the insecticide. Although a major portion of deltamethrin remained unchanged, metabolites such as 3-phenoxybenzaldehyde, 3-phenoxybenzoic acid and 3-(2,2-dibromonyl)-2,2-dimethylcyclopropanecarboxylic acid were formed. The data suggest a major portion of the insecticide would remain unchanged when absorbed by tobacco plants. 相似文献
54.
Summary. The effect of rearing larvae of Trichoplusia ni on
individual feeding deterrents or on binary mixtures of deterrents
on their subsequent gustatory sensitivity was measured
in paired choice leaf disc bioassays. Our working hypothesis
was that mixtures of antifeedants (pure allelochemicals)
would mitigate decreased feeding deterrent response following
prolonged exposure in this generalist herbivore. Neonate
larvae were reared on cabbage leaves treated with individual
feeding deterrents (digitoxin, thymol, toosendanin or xanthotoxin),
or with binary mixtures of these until the third instar.
Feeding deterrent responses to each antifeedant or mixture
was then determined in a leaf disc choice bioassay. All of the
mixtures produced additive deterrence when presented to
naïve larvae. Larvae reared on individual antifeedants
showed a significantly decreased feeding deterrent response
(except to digitoxin), whereas larvae reared on binary mixtures
of antifeedants did not show a decreased feeding deterrent
response to any of them. Such mixtures were synergistic
in terms of their feeding deterrence to experienced larvae.
Our experiment supports the hypothesis (Jermy 1986) that
mixtures of deterrents can prevent decreased feeding deterrent
response following prolonged exposure, and provides one
explanation for the multiplicity of chemical defenses found
in many plants. 相似文献
55.
Rai UN Gupta DK Akhtar M Pal A 《Journal of environmental biology / Academy of Environmental Biology, India》2003,24(1):9-15
The performance of Vicia faba L. in soil amended by different concentrations of fly ash has been studied. The parameters considered are seed germination, growth behaviour and nodulation frequency of the plant. Results revealed that while fly-ash amendment to the soil improved the growth performance at initial stages with application of lower concentrations, it was inhibitory at higher exposure concentrations. Although there was no difference in survival rates, but the seedling growth was reduced in comparison to control plants. Fly ash delayed the nodulation as lesser number of nodules was recorded at higher amendments. Results suggested feasibility of growing V. faba in fly ash contaminated area. 相似文献
56.
57.
We proposed and tested a moderated mediation model that jointly examines affect‐based and cognition‐based trust as the mediators and prosocial motivation as the moderator in relationships between transformational leadership and followers’ helping behavior towards coworkers. Data were collected from 348 sales and servicing employees and their supervisors in four private retail companies and five private manufacturing companies located in Southeast China. The results showed that both affect‐based trust and cognition‐based trust mediated the relationship between transformational leadership and followers’ helping behavior towards coworkers. Furthermore, moderated mediation analyses showed that affect‐based trust mediated the relationship between transformational leadership and followers’ helping behavior towards coworkers only among employees with high prosocial motivation, whereas cognition‐based trust mediated this relationship among only those with low prosocial motivation. Implications for the theory and practice of leadership are then discussed. Copyright © 2013 John Wiley & Sons, Ltd. 相似文献
58.
M H Akhtar 《Journal of environmental science and health. Part. B》1979,14(1):53-71
The mode of reductive dechlorination of alpha-chloroacetophenones, 2,4-di-, and 2,4,5-trichloro phenacyl chlorides into respective acetophenone by soluble fraction (105,000 x g) from chicken liver homogenate has been investigated. The transformation involved the sequential participation of glutathione and a sulph-hydryl. The phenacyl chloride first reacted with glutathione to yield the phenacyl glutathione, which in turn, in the presence of a sulph-hydryl, was reduced enzymatically to produce the ketone, probably via a disulfide intermediate. 相似文献
59.
Ejaz Abid Ahmad Kafeel Khan Zafar Iqbal Akhtar Shahzad Sultana Razia Nadeem Muhammad Hussain Muhammad Iftikhar Elshikh Mohamed S. 《Environmental science and pollution research international》2022,29(23):34558-34574
Environmental Science and Pollution Research - Present study was conducted to check the heavy metal content in wheat treated with municipal solid waste, Although municipal solid waste was enriched... 相似文献
60.
Rahman Md. Mominur Islam Md. Rezaul Shohag Sheikh Hossain Md. Emon Shah Muddaser shuvo Shakil khan Khan Hosneara Chowdhury Md. Arifur Rahman Bulbul Israt Jahan Hossain Md. Sarowar Sultana Sharifa Ahmed Muniruddin Akhtar Muhammad Furqan Saleem Ammara Rahman Md. Habibur 《Environmental science and pollution research international》2022,29(31):46527-46550
Environmental Science and Pollution Research - COVID-19, which is caused by the novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has quickly spread over the world, posing a... 相似文献