21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-24 04:57:40

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FRAGMENT FROM NATURE this weekend focuses on a remarkably short article by an extraordinary man about how metabolic pathways evolved. These intricate, far from equilibrium reactions are laced together in highly improbable ways, exquisitely controlled, and perform in unison in ways we simply do not understand. View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-25 05:03:40

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METABOLIC PATHWAYS. “Centrally located within this network are the sugar phosphate reactions of glycolysis and the pentose phosphate pathway. Together with the overlapping reactions of the Entner–Doudoroff pathway and of the Calvin cycle, they provide the precursor metabolites required for the synthesis of RNA, DNA, lipids, energy and redox coenzymes and amino acids—key molecules required for life.” https://www.embopress.org/doi/full/10.1002/msb.20145351 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-23 04:17:35

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FINDING. “In this Letter, we have shown that the BBHs observed by LIGO/Virgo strongly disfavour the existence of scalar ultralight bosons with masses in the range 1.3 × 10(−13) eV ≤ μs ≤ 2.7 × 10(−13) eV. The statistical evidence is entirely contributed by the two highly spinning primaries in the systems GW190412 and GW190517.” (BBH = binary black holes). https://lnkd.in/gnQbwGA View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-04-23 04:16:22

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THE BOTTLENECK. “Another important factor to assess if black holes will be spun down by boson clouds is the time interval between the formation of the black hole and the merger: if a black hole merges too quickly after being born it might not have the time to undergo superradiance, even if bosons of the appropriate mass exist.” https://lnkd.in/gnQbwGA View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-04-24 05:13:10

linkedin post 2021-04-24 05:13:10

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SUBLINEAR SCALING. “It means a city with a large population needs only ~80% as many roads, power lines, and gas stations per person as a city half its size. The second, “superlinear scaling,” applies to outputs of socioeconomic activity. It means a large city produces ~120% more wealth, patents, crime, pollution, and disease per person than a city half its size.” https://www.santafe.edu/news-center/news/researchers-reveal-cloud-geometry-behind-city-scaling View in LinkedIn
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