Asteroseismology of the β Cephei star HD 129929. Effects of a change in the metal mixture

2007 ◽  
pp. 35-40
Author(s):  
A. Thoul
Keyword(s):  
Metal Mixture

scholarly journals Early pregnancy exposure to metal mixture and birth outcomes – A prospective study in Project Viva

2021 ◽  
Vol 156 ◽  
pp. 106714
Author(s):  
Mohammad L. Rahman ◽  
Emily Oken ◽  
Marie-France Hivert ◽  
Sheryl Rifas-Shiman ◽  
Pi-I D. Lin ◽  
...  
Keyword(s):  
Prospective Study ◽  
Birth Outcomes ◽  
Early Pregnancy ◽  
Metal Mixture ◽  
A Prospective Study

Expanding metal mixture toxicity models to natural stream and lake invertebrate communities

2015 ◽  
Vol 34 (4) ◽  
pp. 761-776 ◽  
Author(s):  
Laurie S. Balistrieri ◽  
Christopher A. Mebane ◽  
Travis S. Schmidt ◽  
Wendel Bill Keller
Keyword(s):  
Mixture Toxicity ◽  
Metal Mixture ◽  
Invertebrate Communities ◽  
Natural Stream

scholarly journals Hepatoprotective Effect of Costus Afer On Trace Metal Mixture Treated Rats Mediated By Regulation of Oxidative Stress Markers, Inflammatory Cytokines And Bio-Metal Chelation

2021 ◽  
Author(s):  
Brilliance Onyinyechi Anyanwu ◽  
Anthonet N. Ezejiofor ◽  
Ify L. Nwaogazie ◽  
Orish Ebere Orisakwe
Keyword(s):  
Trace Metal ◽  
Inflammatory Cytokines ◽  
Leaf Extract ◽  
Morphological Changes ◽  
Lead Chloride ◽  
Laboratory Animals ◽  
Mercury Chloride ◽  
Metal Chelation ◽  
Metal Mixture ◽  
Costus Afer

Abstract Technological developments have led to exposure to various substances that are harmful to the environment and public health, including heavy metals. In the environment, these grades of metals are usually diverse mixtures shown to cause physiological, biochemical and neurological dysfunctions in humans and laboratory animals. Cadmium, Lead, and mercury have been envisaged to exhibit their hepatotoxic effects by oxidative induction damage and synthesis of reactive oxygen species (ROS). The current work evaluated the protective activity of aqueous leaf extract of Costus afer (ALECA)) on liver damage arsing from exposure to trace metal mixture (TMM): cadmium chloride (CdCl2), lead chloride (PbCl2), and mercury chloride (HgCl2). Five groups of weight matched Sprague Dawley rats were treated for 90 days. Metal mixture and deionized water were used to treat the 2 groups of rats whereas the other 3 groups were treated with various doses of the ALECA through oral gavage alongside the metal mixture. Hepatic function parameters, oxidative biomarkers, inflammatory cytokines, Morphological changes and trace metals (concentrations were monitored in the liver). TMM treatment resulted in significant increase in ALT, AST, ALP, bilirubin, IL-6, MDA, but decreased albumin, total protein, IL-10, SOD, CAT and GSH levels. TMM also caused some morphological changes and increased the heavy metal (Pb, Cd and Hg) concentrations in the liver. The leaf extract gave a reasonable protective effect on the hepatotoxicity caused by trace metal mixture - through the mechanisms of metal chelation, anti-inflammatory, and antioxidant although this depends on the dosage to the rats. ALECA may be beneficial in the management of liver toxicity.

scholarly journals Evaluating Metal Mixture Effects across Multiple Media

2020 ◽  
Vol 2020 (1) ◽  
Author(s):  
Y. Levin-Schwartz ◽  
B. Claus Henn ◽  
C. Gennings ◽  
B. A. Coull ◽  
D. Placidi ◽  
...  
Keyword(s):  
Metal Mixture ◽  
Mixture Effects ◽  
Multiple Media

scholarly journals Uncertainties in the Position of the β Cephei Instability Strip in the HR Diagram

1995 ◽  
Vol 155 ◽  
pp. 291-292
Author(s):  
A.A. Pamyatnykh ◽  
W.A. Dziembowski ◽  
P. Mikołaj
Keyword(s):  
Heavy Element ◽  
Element Abundance ◽  
Instability Strip ◽  
Metal Mixture ◽  
Hr Diagram

AbstractWe discuss the sensitivity of the theoretical B star instability domains to the heavy element abundance Z, the adopted metal mixture, the assumed overshooting from stellar convective cores and the choice of the opacity data.

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