نتایج جستجو برای: pb stress

تعداد نتایج: 474134  

1998
J. Rafelski

The hadronic particle production data from relativistic nuclear Pb–Pb 158 A GeV collisions are successfully described within the chemical non-equilibrium model, provided that the analysis does not include Ω and Ω abundances. We show that there is a subtle influence of the Coulomb potential on strange quarks in quark matter which is also seen in our data analysis, and this Coulomb effect confirm...

2014
Wan Nuraini Wan Hasan Mi-Kyoung Kwak Suzana Makpol Wan Zurinah Wan Ngah Yasmin Anum Mohd Yusof

BACKGROUND Nuclear factor-erythroid 2 p45 related factor 2 (Nrf2) is a primary transcription factor, protecting cells from oxidative stress by regulating a number of antioxidants and phase II detoxifying enzymes. Dietary components such as sulforaphane in broccoli and quercetin in onions have been shown to be inducers of Nrf2. Piper betle (PB) grows well in tropical climate and the leaves are u...

2011
Jeong Hoon Lee Kyo Seon Hwang Tae Song Kim

In this study, flat piezoelectric microcantilevers were fabricated under low-stress Pb(Zr0.52Ti0.48)O3 (PZT) film conditions. They were analyzed using the Raman spectrum and wafer curvature methods. Based on the residual stress analysis, we found that a thickness of 1 μm was critical, since stress relaxation starts to occur at greater thicknesses, due to surface roughening. The (111) preferred ...

2003
C. L. Stewardson A. De Kock C. Saunders

The concentration of heavy metals (Cd, Cu, Pb, Ni and Zn) and organochlorine contaminants (PCBs, DDT, DDE and DDD) in the blubber of 12 adult male Cape fur seals, Arctocephalus pusillus pusillus, inadvertently caught in trawl nets off the Eastern Cape coast of South Africa during commercial fishing operations between May 1993 and October 1994, was investigated. The median and range of concentra...

2018
Elba Díaz Dustin Pérez Johanna Delgado Acevedo Arturo Massol-Deyá

Trace element composition in plant biomass could be used as an indicator of environmental stress, management practices and restoration success. A longitudinal study was conducted to compare Pb, Cd, and Cu content in seagrass Syringodium filiforme collected at a former bombing range in Puerto Rico with those of a Biosphere Reserve under similar geoclimatic conditions. Trace elements were measure...

Journal: :Current Psychology 2022

Abstract The psychological phenomenon of Parental Burnout (PB) results from an imbalance between continuous exposure to chronic parenting stress and available coping resources. study’s aim was examine relationships mothers’ perceived burden treatment PB, their ability utilize emotion work (EW) as a resource. Ninety-eight Israeli mothers (46 had children with special needs disabilities—W-SND, 52...

Journal: :Acta biochimica Polonica 2014
Arleta Malecka Aneta Piechalak Barbara Zielińska Agnieszka Kutrowska Barbara Tomaszewska

The presence of the single metals (Cd, Pb, Cu, Zn) induces ROS (reactive oxygen species) production and causes oxidative stress in plants. While applied in two-element combinations, trace metals impact organisms in a more complex way. To assess the resultant effect we treated the pea grown hydroponically with the trace metals in variants: CuPb, CuCd, CuZn, PbCd, ZnPb, ZnCd in concentrations of ...

Journal: :International Journal of Molecular Sciences 2014

Journal: :Sustainability 2023

Lead (Pb) is a non-essential element; however, plants uptake it from soils rich in Pb. Soybean [Glycine max (L.) Merr.] an important legume crop, and Pb toxicity exerts negative impacts on its growth yield. This study investigated the role of foliar-applied loquat (Eriobotrya japonica Lindl.) leaf extract improving morphological, physiological, biochemical traits soybean under toxicity. were ex...

Journal: :Brazilian Journal of Biology 2022

Abstract This study goal to evaluate the effects of different concentrations lead (Pb) and silver (Ag) on germination, initial growth anatomical alterations Lactuca sativa L. Plants use various mechanisms reduce impacts caused by anthropic action, such as xenobiotic elements soils water contaminated heavy metals. These metals were supplied nitrate following treatments established: control for b...

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