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3 giorni fa · Food security is the state of having reliable access to a sufficient quantity of affordable, nutritious food. The availability of food for people of any class, gender or religion is another element of food security. Similarly, household food security is considered to exist when all the members of a family, at all times, have access to enough ...
3 giorni fa · Universal Time (UT1) is mean solar time at 0° longitude, computed from astronomical observations. It varies from TAI because of the irregularities in Earth's rotation. Coordinated Universal Time (UTC) is an atomic time scale designed to approximate Universal Time. UTC differs from TAI by an integral number of seconds.
2 giorni fa · As of May 2015, the current version of the English Wikipedia article / template / redirect text was about 51 GB uncompressed in XML format. The size of the article text in the English Wikipedia, measured in gigabytes (compressed), grew steadily from 1 GB in 2006 to 9 GB in 2013 to 11.5 GB in 2015 as shown in the chart.
2 giorni fa · Sustainability is a social goal for people to co-exist on Earth over a long time. Definitions of this term are disputed and have varied with literature, context, and time. [2] [1] Sustainability usually has three dimensions (or pillars): environmental, economic, and social. [1]
2 giorni fa · v. t. e. Ageing (or aging in American English) is the process of becoming older. The term refers mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal. [1]
3 giorni fa · Regioni meno sviluppate (PIL pro capite < 75 % media UE) Regioni di transizione (PIL pro capite 75÷90 % media UE) Regioni più sviluppate (PIL pro capite > 90 % media UE) Secondo Eurostat nel 2009 la Sardegna aveva un reddito pro capite a parità di potere di acquisto pari all'80% della media dell' Unione europea ; le regioni italiane più povere erano la Sicilia e la Calabria con il 68%, la ...
3 giorni fa · A protein is a polyamide. Secondary structure: regularly repeating local structures stabilized by hydrogen bonds. The most common examples are the α-helix, β-sheet and turns. Because secondary structures are local, many regions of different secondary structure can be present in the same protein molecule.
