Introduction: The increasing trend of petroleum production in Iran and lack of proper and systematic management of waste products in the deposition of petroleum storage tanks have made the existing hydrocarbons as a major hazards to the environment. In this study, the ozonation process was used to remove the petroleum deposits. Materials and Methods: In this experimental study, effects of pH, ...

This article details microfabrication of two-dimensional tungsten photonic crystals (2D W PhCs) for high-temperature applications such as selective thermal emitters for thermophotovoltaic energy conversion. In particular, interference lithography and reactive ion etching are used to produce large area single crystal tungsten 2D PhCs. For this investigation, we fabricated a 2D W PhC sample consi...

In this paper we investigate the properties of two-dimensional photonic crystals (2D PhCs) with both hexagonal and square symmetry for applications in optoelectronics and telecommunication. An efficient way of manipulating the light is to make use of the defects introduced within the periodic structure, which consequently break the symmetry of the crystal, resulting in linear waveguides or reso...

The present work aimed to develop and investigate microbial consortia for petroleum hydrocarbons (PHCs) detoxification plant growth improvement in hydrocarbons-contaminated soil. Here, we isolated several bacteria from PHCs-contaminated soils make bacterial two of the best were tested a pot experiment evaluate their potential PHCs removal chickpea promotion Results demonstrated that exerted con...

CONTEXT Kerala's government health-care system functions relatively well compared with other Indian States, but utilization levels are decreasing due to lack of essential facilities. The opportunity cost of seeking medical care from the government sector is high, even for the poor, with 60-70% of the poor seeking care from the private sector and spending disproportionately on health care (about...

This study investigates the prediction of removal efficiency pharmaceuticals (PhCs), personal care products (PCPs), and steroidal hormones (SHs) based on design operational parameters (depth, area, hydraulic loading rate-HLR, organic rate-OLR, retention time-HRT) constructed wetlands (CWs). A comprehensive statistical analysis was performed by applying principle component analysis, correlation ...

Introduction Non-communicable diseases (NCDs) have become a major public health challenge worldwide; they account for 28 million deaths per year in low-and-middle-income countries (LMICs). Like many other LMICs, India is struggling to organise quality care for a large NCD-affected population especially at the primary healthcare level. The aim of this study was to assess local health system prep...

BACKGROUND The study was carried out to record adverse pregnancy outcomes and to obtain information about sex ratio at birth in rural especially tribal areas in the State of Maharashtra, India. Although the tribal population is considered vulnerable to innumerable adversities, regretfully information about pregnancy wastage among them is not available. About 10% population of the state is triba...

BACKGROUND The opinions of consumers in decentralization provide insights into possible levels of improvement in access and uptake of services. OBJECTIVES The study examined clients' perception and attitude towards decentralization of antiretroviral treatment services from central hospitals to primary health centres (PHCs). METHODOLOGY A cross-sectional survey was undertaken in three states...

Nonlinear topological photonics, which explores topics common to the fields of phases and nonlinear optics, is expected open up a new paradigm in photonics. Here, we demonstrate second-harmonic generation (SHG) via interaction double valley-Hall kink modes all-dielectric photonic crystals (PhCs). We first show that two frequency band gaps can be created around pair frequencies, ${\ensuremath{\o...