Abstract Background The infection fatality rate (IFR) of the Coronavirus Disease 2019 (COVID-19) is one most discussed figures in context this pandemic. In contrast to case (CFR), IFR depends on total number infected individuals – not just confirmed cases. order estimate IFR, several seroprevalence studies have been or are currently conducted. Methods Using German COVID-19 surveillance data and...

The anticellular and antiviral effects of human leukocyte interferons were studied in vitro in the transformed human embryonic cell lines. RSa and RSb. The growth of these cells was inhibited and they began to deteriorate about 48 h after treatment with 500 units/ml of interferon. When interferon was washed out within 48 h, their growth recovered gradually. The effects of interferon on cell gro...

The metacognitive loop (MCL) is an architecture for automated noting, repairing, and learning from errors. Initial work on this award involved builing special-purpose MCL programs for each individual application domain. Later in the award period a more uniform approach was designed that employs a general framework providing ontologies for types of Indications, Failures, and Repairs. This allows...

Let F be a life distribution with survival function F = 1 F and 00 — finite mean y * j n F(x)dx. The scaled total time on test transform -1 F ( t ) — <P,,(t) = /n /F(x)dx/y was introduced by Barlow and Campo (1975) as a r U tool in the statistical analysis of life data. The properties IFR, IFRA, NBUE, DMRL and heavy-tailedness can be translated to properties of tp„(t). r We discuss the previous...

A novel phosphorus-containing triazine oligomer poly(2-morpholinyl-4-penta-erythritol phosphate-1,3,5-triazine) (PMPT) was synthesized as a kind of tri-component intumescent flame retardant (IFR). The chemical structure of PMPT was characterized by FTIR, 1H-NMR and 31P-NMR, and the mechanical and flammability properties of FR-PP were measured. The FTIR results showed that the expected chemical ...

Although recent works based on deep learning have made progress in improving recognition accuracy scene text recognition, how to handle low-quality images end-to-end networks remains a research challenge. In this paper, we propose an Iterative Fusion Recognizer (IFR) for low quality taking advantage of refined input and robust feature representation. IFR contains two branches which focus image ...

Coronavirus disease 2019 (COVID-19) is an infectious caused by severe acute respiratory syndrome coronvirus, which was declared as a global pandemic the World Health Organization on March 11, 2020. In this work, we conduct cross-sectional study to investigate how infection fatality rate (IFR) of COVID-19 may be associated with possible geographical or demographical features infected population....

WiMax (Worldwide Interoperability for Microwave Access) is a promising wireless technology with the aim of providing the last mile wireless broadband access designed for both fixed and mobile consumers as an alternative solution to the wired DSL and cable access schemes. The purpose of this research project is to investigate efficient resource allocation algorithms for WiMax. To achieve this go...