In this paper, a family of novel chaotic and hyperchaotic attractors are constructed utilizing a first-order delay differential equation (DDE). Dynamical analysis exhibits that Hopf bifurcation occurs at the non-trivial equilibrium points of the system when the time delay is properly selected. Bifurcation diagram and Lyapunov spectra further verify that the system behaves alternately in chaotic...

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...

Numerous studies have reported positive associations of environmental exposure to polychlorinated biphenyls (PCB) and p,p'-dichlorodiphenyldichloroethylene (p,p'-DDE) with the risk of non-Hodgkin lymphoma (NHL). In a case-control study nested within the Nurses' Health Study, a prospective cohort of U.S. women, we measured concentrations of PCBs and p,p'-DDE in blood samples from 145 women diagn...

Non-carious dental lesions such as developmental defects of enamel (DDE) and erosive tooth wear (ETW) are the subject intensive research. This paper aims to give perspectives on both DDE, including fluorosis molar incisor hypomineralization (MIH), ETW, presenting epidemiological data from Americas associated diagnostic aspects. Besides, it is important present evidence guide clinical assessment...

Persistent organic pollutants, (POPs), are vast distributed compounds in environment which are recognized as one of the global pollution problems. These groups of materials being dangerous due to their high stability are accumulated in animal tissues and occurring in the food chain. One of the major paths through which persistent organic combinations access to human body is consuming polluted f...

Persistent organic pollutants, (POPs), are vast distributed compounds in environment which are recognized as one of the global pollution problems. These groups of materials being dangerous due to their high stability are accumulated in animal tissues and occurring in the food chain. One of the major paths through which persistent organic combinations access to human body is consuming polluted f...

Nowadays, the proportional–integral–derivative (PID) controller dominates industrial process control. Because of compromise between parameters, its tuning is still a challenge for practitioners. A reference model (RM)-based PID controller—the desired dynamic equational (DDE) controller—is regarded as viable alternative since it can readily eliminate compromise. However, how to design equation r...

Abstract DDE (2,2-bis (p-chlorophenyl)-1,1-dichloroetylene) is a very persistent and bioaccumulative pesticide its residues are continuously found in the environment. Among green remediation strategies for soil recovery, terrestrial Microbial Fuel Cells (MFC) arousing great interest scientific community. MFCs transform energy stored chemical bonds of organic compounds into electrical thanks to ...

ABSTRACT We present the deconvolved distribution estimator (DDE), an extension of voxel intensity (VID), in context future observations proposed as part CO Mapping Array Project (COMAP). The DDE exploits fact that observed VID is a convolution correlated signal distributions and uncorrelated noise or interloper distributions. By deconvolving individual two observables away from their joint Four...

Diatoms are a major group of primary producers ubiquitous in all aquatic ecosystems. To protect themselves from photooxidative damage in a fluctuating light climate potentially punctuated with regular excess light exposures, diatoms have developed several photoprotective mechanisms. The xanthophyll cycle (XC) dependent non-photochemical chlorophyll fluorescence quenching (NPQ) is one of the mos...