Currently, South Africa is designing a strategy for surface water protection involving organic contaminants such as dichlorodiphenyltrichloroethane (DDT), which is currently used for malaria control in mosquito-infested areas. Here, we demonstrate the successful use of an improved activated carbon technique using dichloromethane instead of chloroform, and slower leaching rate of 15 mL/min to qu...

DNA damage tolerance (DDT) mechanisms allow cells to synthesize a new DNA strand when the template is damaged. Many mutations resulting from DNA damage in eukaryotes are generated during DDT when cells use the mutagenic translesion polymerases, Rev1 and Polζ, rather than mechanisms with higher fidelity. The coordination among DDT mechanisms is not well understood. We used live-cell imaging to s...

Epidemiological studies suggest a link between pesticide exposure and an increased risk of developing Parkinson's disease (PD). Although studies have been unable to clearly identify specific pesticides that contribute to PD, a few human studies have reported higher levels of the organochlorine pesticides dieldrin and DDE (a metabolite of DDT) in post-mortem PD brains. Previously, we found that ...

Uterotropic Activity of DDT in Rats and Mink and Its Influence on Reproduction in the Rat. DUBY, R . T., TRAVIS, H. F., and TERRILL, C. E. (1971). Toxicol. Appl. Pharmacal. 18, 348-355. The injection of o,p'-DDT increased uterine weights in intact immature rats, and in intact and castrate immature minlc The p,p' -isomer had only slight activity while the uterotropic activity of technical DDT wa...

Nontargeted GC×GC-TOF/MS analysis of blubber from 8 common bottlenose dolphins (Tursiops truncatus) inhabiting the Southern California Bight was performed to identify novel, bioaccumulative DDT-related compounds and to determine their abundance relative to the commonly studied DDT-related compounds. We identified 45 bioaccumulative DDT-related compounds of which the majority (80%) is not typica...

UNLABELLED Bisphenol-A (BPA), dichrolodiphenyltrichloroethane (DDT) and vinclozolin were found able to induce abnormal uterine contraction. The mechanisms involved remains unclear. We hypothesized that the effect of these compounds were mediated via the uterotonin pathways. Therefore, in this study, effects of BPA, vinclozolin and DDT-only and in combination with uterotonins (PGF-2α, acetylchol...

A deflagration-to-detonation transition (DDT) can occur in environments ranging from experimental and industrial systems to astrophysical thermonuclear (type Ia) supernovae explosions. Substantial progress has been made in explaining the nature of DDT in confined systems with walls, internal obstacles, or preexisting shocks. It remains unclear, however, whether DDT can occur in unconfined media...

Recently, goitrogenic action of DDT and P, P,-DDT on avian thyroid have been reported by Jefferies and French1,2). Fregly et al.3) observed an increase in thyroid weight of male rats by chronic treatment with DDT. Since these reports are based on the histological evidence and the measurment of thyroid weight, the mechanism of the action of DDT and its analogues is not known at present. DDT and ...

This paper proposes a distributed optimization based dynamic tariff (DDT) method for congestion management in distribution networks with high penetration of electric vehicles (EVs) and heat pumps (HPs). The DDT method employs a decomposition based optimization method to have aggregators explicitly participate in congestion management, which gives more certainty and transparency compared to the ...

Di-1,1-chlorophenyl-2,2,2-trichloroethane (DDT) and its derivatives di-1,1-chlorophenyl-2,2dichloroethane (DDD), di-1,1-chlorophenyl-2,2-dichloroethene (DDE), and di-1,1-chlorophenyl-2-chloroethene (DDMU) were dechlorinated in heptane solution over a sulphide Ni-Mo/C catalyst in a batch reactor. The process was carried out at 150-260oC and hydrogen pressure of 3 MPa. For DDT, fast elimination o...