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  2. Rate of natural increase - Wikipedia

    en.wikipedia.org/wiki/Rate_of_natural_increase

    For example, during the COVID-19 crisis Singapore offered families a “pandemic baby bonus” to encourage a higher birth rate, therefore increasing RNI. [5] The US has considered similar policies. [6] Another example was China's one-child policy, intended to decrease birth rates, therefore decreasing the RNI. [7]

  3. Near-infrared window in biological tissue - Wikipedia

    en.wikipedia.org/wiki/Near-infrared_window_in...

    The near-infrared (NIR) window (also known as optical window or therapeutic window) defines the range of wavelengths from 650 to 1350 nanometre (nm) where light has its maximum depth of penetration in tissue. [1] Within the NIR window, scattering is the most dominant light-tissue interaction, and therefore the propagating light becomes diffused ...

  4. Near-infrared spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Near-infrared_spectroscopy

    NIR absorption bands are typically 10–100 times weaker than the corresponding fundamental mid-IR absorption band.) [4] The lower absorption allows NIR radiation to penetrate much further into a sample than mid infrared radiation. Near-infrared spectroscopy is, therefore, not a particularly sensitive technique, but it can be very useful in ...

  5. Normalized Difference Red Edge Index - Wikipedia

    en.wikipedia.org/wiki/Normalized_Difference_Red...

    The normalized difference red edge index (NDRE) is a metric that can be used to analyse whether images obtained from multi-spectral image sensors contain healthy vegetation or not. [1]

  6. Upconverting nanoparticles - Wikipedia

    en.wikipedia.org/wiki/Upconverting_nanoparticles

    To calculate the molecular mass of a nanoparticle, the size of the nanoparticle, the size and shape of the unit cell structure, and the unit cell elemental composition must be known. These parameters can be obtained from transmission electron microscopy and X-ray diffraction respectively.

  7. Federal agencies to be closed on Christmas Eve 2024 ... - AOL

    www.aol.com/federal-agencies-closed-christmas...

    On Thursday, President Joe Biden signed an executive order designating Christmas Eve as a federal holiday for most employees.

  8. Donald Trump's transition team wants to scrap a car crash ...

    www.aol.com/donald-trumps-transition-team-wants...

    In one example, the agency fined Cruise, the self-driving startup owned by General Motors GM.N, $1.5 million in September for failing to report a 2023 incident in which a vehicle hit and dragged a ...

  9. Doubling time - Wikipedia

    en.wikipedia.org/wiki/Doubling_time

    For example, with an annual growth rate of 4.8% the doubling time is 14.78 years, and a doubling time of 10 years corresponds to a growth rate between 7% and 7.5% (actually about 7.18%). When applied to the constant growth in consumption of a resource, the total amount consumed in one doubling period equals the total amount consumed in all ...

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