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Global Dietary Database 2017: Data availability and gaps on 54 major foods, beverages and nutrients among 5.6 million children and adults from 1220 surveys worldwide Format Abstract Background We aimed to systematically identify, standardise and disseminate individual-level dietary intake surveys from up to 207 countries for 54 foods, beverages and nutrients, including subnational intakes by age, sex, education and urban/rural residence, from 1980 to 2015. Methods Between 2008–2011 and 2014–2020, the Global Dietary Database (GDD) project systematically searched for surveys assessing individual-level intake worldwide. We prioritised nationally or subnationally representative surveys using 24-hour recalls, Food-Frequency Questionnaires or short standardised questionnaires. Data were retrieved from websites or corresponding members as individual-level food group microdata or aggregate stratum-level data. Standardisation included quality assessment; data cleaning; ....
Evonik unveils 3 new natural refrigerants Germany, January 11, 2021 Evonik, a speciality chemicals company, has introduced three new natural refrigerants throughout Europe and delivered using a means of transport particularly suitable for this purpose.
This was made possible by the further shift of Evonik s existing C4 Verbund in Marl toward petrochemical specialties, primarily by adapting production processes, a statement said.
The most recent result of these adaptations are three hydrocarbon-based gases: n-butane (Drivosol R600), isobutane (Drivosol R600a), and propane (Drivosol R290).
These three products, all of which also occur naturally, can be used as environmentally friendly and energy-efficient refrigerants in various appliances. This gives manufacturers of refrigerators, freezers, air conditioners and heat pumps a new alternative to existing products. ....