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  2. Fold change - Wikipedia

    en.wikipedia.org/wiki/Fold_change

    However, log-ratios are often used for analysis and visualization of fold changes. The logarithm to base 2 is most commonly used, [ 8 ] [ 9 ] as it is easy to interpret, e.g. a doubling in the original scaling is equal to a log 2 fold change of 1, a quadrupling is equal to a log 2 fold change of 2 and so on.

  3. Darcy friction factor formulae - Wikipedia

    en.wikipedia.org/wiki/Darcy_friction_factor_formulae

    9.287 = 18.574 / 2 = 2.51 × 3.7. The additional equivalent forms above assume that the constants 3.7 and 2.51 in the formula at the top of this section are exact.

  4. Exponentiation - Wikipedia

    en.wikipedia.org/wiki/Exponentiation

    Graphs of y = b x for various bases b: base 10, base e, base 2, base ⁠ 1 / 2 ⁠. Each curve passes through the point (0, 1) because any nonzero number raised to the power of 0 is 1. At x = 1, the value of y equals the base because any number raised to the power of 1 is the number itself.

  5. List of countries by traffic-related death rate - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This list of countries by traffic-related death rate shows the annual number of road fatalities per capita per year, per number of motor vehicles, and per vehicle-km in some countries in the year the data was collected.

  6. List of countries by government budget - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Global map of total central government revenues, as share of GDP, 2022 [1] Global map of total central government expenditures, as share of GDP, 2022 [2]. This is the list of countries by government budget.

  7. Ocean - Wikipedia

    en.wikipedia.org/wiki/Ocean

    The pelagic part of the aphotic zone can be further divided into vertical regions according to depth and temperature: [91] The mesopelagic is the uppermost region. Its lowermost boundary is at a thermocline of 12 °C (54 °F) which generally lies at 700–1,000 meters (2,300–3,300 ft) in the tropics .

  8. List of countries by total fertility rate - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_total...

    2024 list by the United Nations Population Fund [1]; Rank Country Total fertility rate in 2024 (births/woman) 1 Niger 6.6 2 Chad 6.0 3 DR Congo 6.0 4 Somalia 6.0 5 Central African Republic

  9. List of sports - Wikipedia

    en.wikipedia.org/wiki/List_of_sports

    The following is a list of sports/games, divided by category. According to the World Sports Encyclopaedia (2003), there are 8,000 indigenous sports and sporting games . [ 1 ]