Research led by the University of California, Irvine, has found a significant association between long-term antepartum and postpartum air pollution exposure and higher risks of postpartum depression (PPD).
Research led by the Huazhong University of Science and Technology, China, has connected the effects of air pollutants on the risk of atrial fibrillation (AF). In a paper, "Air pollution, genetic susceptibility, and the risk ...
A team of medical researchers at Zhejiang University, in China, has developed a way to use cryo-shocked tumor cells to fight lung cancer. In their study, published in the journal Science Advances, the group used fast liquid ...
Short-term exposure to air pollution may be linked to an increased risk of stroke, according to a meta-analysis published in the September 27, 2023, online issue of Neurology. Short-term exposure was defined as occurring ...
Sep 27, 2023
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A long history of exposure to air pollution is associated with a higher risk of developing severe disease, admission to hospital or an intensive care unit (ICU) and death by COVID‑19 according to a study led by the Barcelona ...
May 24, 2023
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Three years ago, an international study commissioned by the journal Lancet listed 12 modifiable factors that increased the risk of dementia, including three new ones: excessive alcohol, head injury and air pollution.
May 2, 2023
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Exposure to fine particulate air pollutants (PM2.5) may increase the risk of developing dementia, according to a new meta-analysis from Harvard T.H. Chan School of Public Health.
Apr 5, 2023
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People exposed to higher levels of air pollution before the pandemic had lower antibody responses to COVID-19 vaccines, according to a study led by the Barcelona Institute for Global Health (ISGlobal), in collaboration with ...
Apr 5, 2023
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Elevated levels of air pollutants are associated with bone damage among postmenopausal women, according to new research led by scientists at Columbia University Mailman School of Public Health. The effects were most evident ...
Feb 21, 2023
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Residential exposure to ambient air pollutants is linked to an elevated risk of SARS-CoV-2 infection, an observational study of young adults in Stockholm, Sweden shows. The study was conducted by researchers from Karolinska ...
Apr 20, 2022
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Nitrogen (pronounced /ˈnaɪtrədʒɨn/) is a chemical element that has the symbol N and atomic number 7 and atomic mass 14.00674 u. Elemental nitrogen is a colorless, odorless, tasteless and mostly inert diatomic gas at standard conditions, constituting 78% by volume of Earth's atmosphere.
Many industrially important compounds, such as ammonia, nitric acid, organic nitrates (propellants and explosives), and cyanides, contain nitrogen. The extremely strong bond in elemental nitrogen dominates nitrogen chemistry, causing difficulty for both organisms and industry in converting the N2 into useful compounds, and releasing large amounts of energy when these compounds burn or decay back into nitrogen gas.
The element nitrogen was discovered by Daniel Rutherford, a Scottish physician, in 1772. Nitrogen occurs in all living organisms. It is a constituent element of amino acids and thus of proteins, and of nucleic acids (DNA and RNA). It resides in the chemical structure of almost all neurotransmitters, and is a defining component of alkaloids, biological molecules produced by many organisms.
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