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Analysis of Boron Isotope Ratio


Analysis of Boron Isotope Ratio
Sponsored by PerkinElmerFeb 18 2021
Boron (B) is an element of interest in many scenarios, particularly for its isotope ratio composition in a range of geochemical, nuclear, paleoproxy, medical and archeological applications.
Boron offers two stable isotopes,
10B and
11B, the latter of which being four times more common. An earlier IUPAC report provided a fixed value (80.1%
11B) for the representative isotopic composition of boron,
1 however, the current edition of the report quotes a natural abundance range of 79.6 – 81.1%
11B.
2
For purely practical purposes, the earlier presented value is reserved for situations where isotope composition is unknown.
Boron isotope ratios found in nature can vary by around 100‰ (parts per thousand, or permil) or 10% ....

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They Call Themselves Green, But Palm Oil in the Amazon Means Deforestation and Human Rights Violations


They Call Themselves Green, But Palm Oil in the Amazon Means Deforestation and Human Rights Violations
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Guided by an Indigenous leader, we drove down dusty roads in the Turé-Mariquita Indigenous Reserve, a “green island” encircled by oil palm plantations in the Brazilian Amazon.
Uniform rows of oil palms cover huge swaths of land here in the northeast of the state of Pará, once home to a vibrant expanse of rainforest. Our Mongabay reporting team was there to discover if the palm oil business, worth hundreds of millions of dollars, is sustainable and ecologically responsible, as industry representatives told us. ....

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Connection between malaria transmission and climate change and more environmental news


Connection between malaria transmission and climate change and more environmental news
These were the most relevant environmental news of this week. Photo: Pixabay
LatinAmerican Post | Vanesa López Romero
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The connection between malaria transmission and climate change
A recent study led by the Barcelona Institute for Global Health focused on the debate that has been going on for several years around the correlation that exists between the transmission of malaria, a disease caused by the Plasmodium parasite and transmitted by the bite of infected mosquitoes, and regional climate change. ....

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