An array of low profile horns fed by transverse slots on a groove gap waveguide (GGWG) is presented.The GGWG is implemented with glide symmetrical holes and the design frequency is 28 GHz.The low profile horns are integrated in the same waveguide wall cga 200 to cga 510 adapter as the slots.The designed antenna is a linear array of these horns but
Nowadays, finding new approaches to attenuate the effects of the catastrophic shear failure mode for reinforced concrete beams is a major challenge.Generally the bending failure is ductile.It allows a redistribution of the stresses providing an early warning, whereas here the rupture by shear is fragile and sudden which can lead to detrimental cons
Among fungal pathogens, Cryptococcus neoformans has gained great importance among the scientific community of several reasons.This fungus is the causative agent of cryptococcosis, a disease mainly associated to HIV immunosuppression and characterized by the appearance of meningoencephalitis.Cryptococcal meningitis is responsible for hundreds of tho
Abstract The spectrum of diseases caused by Streptococcus pyogenes (Strep A) ranges from superficial to serious life-threatening invasive infections.We conducted a scoping review of published articles between 1980 and 2021 to synthesize evidence of state transitions across the Strep A disease spectrum.We identified 175 articles reporting 262 distin
Background: While the rapid deployment of SARS-CoV-2 rawafricaonline.com vaccines had a significant impact on the ongoing COVID-19 pandemic, rapid viral immune evasion and waning neutralizing antibody titers have degraded vaccine efficacy.Nevertheless, vaccine manufacturers and public health authorities have a number of options at their disposal to