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In survival analysis, the hazard ratio (HR) is the ratio of the hazard rates corresponding to the conditions characterised by two distinct levels of a treatment variable of interest. For example, in a clinical study of a drug, the treated population may die at twice the rate of the control population.
Location of the psa genes in the chloroplast genome of Arabidopsis thaliana.The 21 protein-coding genes involved in photosynthesis are displayed as green boxes. Photosystem I (PSI, or plastocyanin–ferredoxin oxidoreductase) is one of two photosystems in the photosynthetic light reactions of algae, plants, and cyanobacteria.
Three railroad spike knives (using railroad spikes) Arming sword: August 21, 2018 ... M1 NASA Survival knife: Spiked Mace: July 17, 2019 () 1.12 [120]
The proportion of AST to ALT in hepatocytes is about 2.5:1, but because AST is removed from serum by the liver sinusoidal cells twice as quickly (serum half-life t 1/2 = 18 hr) compared to ALT (t 1/2 = 36 hr), so the resulting serum levels of AST and ALT are about equal in healthy individuals, resulting in a normal AST/ALT ratio around 1.
Calculator (programmable): the Programma 101, one of the first desktop electronic programmable calculators, was designed by a small team led by Pier Giorgio Perotto of Olivetti, between 1962 and 1964 and launched in 1965. [49] [50] Dipped candle: Romans made candles using rendered animal fat (called tallow), beginning around 500 BC. [51]
List of countries by carbon emissions Location % of global total Fossil emissions (1,000,000 tons per year) % change from 2000 2023 2000 World 100%: 39,023.94
Snowpiercer is an American post-apocalyptic dystopian thriller television series that premiered on May 17, 2020, on TNT.It is based on both the 2013 film of the same name, directed by Bong Joon-ho, and the 1982 French graphic novel Le Transperceneige by Jacques Lob, Benjamin Legrand and Jean-Marc Rochette, from which the film was adapted.
SDG 4 and 5: Educational equity has yet to be reached in the world. Public health efforts are impeded by this, as a lack of education can lead to poorer health outcomes. This is shown by children of mothers who have no education having a lower survival rate compared to children born to mothers with primary or greater levels of education. [124]