espanolIntroduccion y objetivos: El proposito del estudio fue describir nuestra experiencia con el uso indice diastolico instantaneo sin ondas (iFR) para la evaluacion fisiologica coronaria o software Syncvision/iFR (Syncvision version 4.1.0.5, Philips Volcano, Belgica) en todo tipo de pacientes. Metodos: Se incluyeron todos los pacientes consecutivos a quienes, entre enero 2017 diciembre 2019,...

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 ...