Multilayered metamaterials array antenna based on artificial magnetic conductor's structure for the application diagnostic breast cancer detection with microwave imaging.

In this work, a small multilayer ultra-wideband (UWB) patch antenna for microwave breast imaging (MWI) applications was developed both theoretically and experimentally. However, to improve the antenna performance relating to the bandwidth (BW), the radiating element of the suggested initial antenna is modified by adding a modified split ring resonator (SRR) and slits in the patch as well as the ground plane. Then, to achieve the requisite antenna properties for MWI applications such as the gain and directivity, the antenna is equipped with a uniplanar artificial magnetic conductor (AMC) structure made up of a 3 × 3 array of square modified SRR unit cells.

COVID-19's impacts on migrant workers from Bangladesh: In search of policy intervention.

Migrant workers play a significant role in the economy of Bangladesh, pumping approximately USD15 billion into the economy that directly contributes to the socio-economic development of Bangladesh every year. These workers and their dependents are in a socially vulnerable and economically difficult situation due to the dire impacts of the COVID-19. Migrant workers from Bangladesh in other countries are facing adverse impacts such as unemployment, short working hours, isolation, poor quality of living, social discrimination and mental pressure while their dependents at home are facing financial crisis due to the limited or reduced cash flow from their working relatives.