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  2. Population dynamics - Wikipedia

    en.wikipedia.org/wiki/Population_dynamics

    The formula can be read as follows: the rate of change in the population (dN/dt) is equal to growth (rN) that is limited by carrying capacity (1 − N/K). From these basic mathematical principles the discipline of population ecology expands into a field of investigation that queries the demographics of real populations and tests these results ...

  3. Rate of natural increase - Wikipedia

    en.wikipedia.org/wiki/Rate_of_natural_increase

    The rate of natural increase gives demographers an idea of how a region's population is shifting over time. RNI excludes in-migration and out-migration, giving an indication of population growth based only on births and deaths. Comparing natural population change with total population change shows which is dominate for a particular region.

  4. 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 ...

  5. The American Academy of Pediatrics (AAP) recommends exclusively breastfeeding for the first six months of a baby’s life, and recently released an updated policy statement extending the period of ...

  6. Growth curve (biology) - Wikipedia

    en.wikipedia.org/wiki/Growth_curve_(biology)

    A growth curve is an empirical model of the evolution of a quantity over time. Growth curves are widely used in biology for quantities such as population size or biomass (in population ecology and demography , for population growth analysis), individual body height or biomass (in physiology , for growth analysis of individuals).

  7. Dynamic factor - Wikipedia

    en.wikipedia.org/wiki/Dynamic_factor

    In econometrics, a dynamic factor (also known as a diffusion index) is a series which measures the co-movement of many time series. It is used in certain macroeconomic models. A diffusion index is intended to indicate the changes of the fraction of economic data time series which increase or decrease over the selected time interval,

  8. Relative growth rate - Wikipedia

    en.wikipedia.org/wiki/Relative_growth_rate

    RGR is a concept relevant in cases where the increase in a state variable over time is proportional to the value of that state variable at the beginning of a time period. In terms of differential equations, if is the current size, and its growth rate, then relative growth rate is

  9. Dynamic assessment - Wikipedia

    en.wikipedia.org/wiki/Dynamic_assessment

    Dynamic assessment is a kind of interactive assessment used in education and the helping professions. Dynamic assessment is a product of the research conducted by developmental psychologist Lev Vygotsky. It identifies Constructs that a student has mastered (the Zone of Actual Development)