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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.
Nuclear War Survival Skills or NWSS, by Cresson Kearny, is a civil defense manual. It contains information gleaned from research performed at Oak Ridge National Laboratory during the Cold War , as well as from Kearny's extensive jungle living and international travels.
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]
The 2023 data represent the highest level recorded and experienced an increase of 1.9% or 994 Mt CO 2 eq compared to the levels in 2022. The majority of GHG emissions consisted of fossil CO 2 accounting for 73.7% of total emissions. [4]
Fourthly, the SDGs have been "institutionally embedded at a higher political level than earlier goals in development policy": A new forum, the High-level Political Forum on Sustainable Development was created in 2013 to review the progress of the implementation of the SDGs. The fifth aspect about the SDGs that is unique is that they are "more ...
Three railroad spike knives (using railroad spikes) Arming sword: August 21, 2018 ... M1 NASA Survival knife: Spiked Mace: July 17, 2019 () 1.12 [120]