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Biogerontology is the sub-field of gerontology concerned with the biological aging process, its evolutionary origins, and potential means to intervene in the process. [1] The term "biogerontology" was coined by S. Rattan, and came in regular use with the start of the journal Biogerontology in 2000. It involves interdisciplinary research on the ...
Impacts of anthropogenic inputs on the nitrogen cycle. Between 1600 and 1990, global reactive nitrogen (Nr) creation had increased nearly 50%. [6] During this period, atmospheric emissions of Nr species reportedly increased 250% and deposition to marine and terrestrial ecosystems increased over 200%. [6]
Nitrogen dioxide is a chemical compound with the formula NO2. One of several nitrogen oxides, nitrogen dioxide is a reddish-brown gas. It is a paramagnetic, bent molecule with C 2v point group symmetry. Industrially, NO2 is an intermediate in the synthesis of nitric acid, millions of tons of which are produced each year, primarily for the ...
Nitrogen dioxide poisoning is the illness resulting from the toxic effect of nitrogen dioxide (NO. 2). It usually occurs after the inhalation of the gas beyond the threshold limit value. [1] Nitrogen dioxide is reddish-brown with a very harsh smell at high concentrations, at lower concentrations it is colorless but may still have a harsh odour.
October 9, 2024 at 4:30 AM. Life expectancy in humans not likely to increase much more, study suggests. Human life expectancy has potentially been pushed to the max, new research suggests. The ...
The researchers discovered that while humans have gained about 30 years of life expectancy over the 20 th century, improvements in overall life expectancy have slowed—and actually declined in ...
Biodemography is a multidisciplinary approach, integrating biological knowledge (studies on human biology and animal models) with demographic research on human longevity and survival. Biodemographic studies are important for understanding the driving forces of the current longevity revolution (dramatic increase in human life expectancy ...
Climate change affects human health at all ages, from infancy through adolescence, adulthood and old age. [3] Factors such as age, gender and socioeconomic status influence to what extent these effects become wide-spread risks to human health. [9]: 1867 Some groups are more vulnerable than others to the health effects of climate change. These ...