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  2. PSA prepayment model - Wikipedia

    en.wikipedia.org/wiki/PSA_prepayment_model

    Variations of the model are expressed in percent, e.g., "150% PSA" means a monthly increase of 0.3% in the annualized prepayment rate, until the peak of 9% is reached after 30 months. The months thereafter have a constant annualized prepayment rate of 9%. 1667% PSA is roughly equivalent to 100% prepayment rate in month 30 or later.

  3. Doubling time - Wikipedia

    en.wikipedia.org/wiki/Doubling_time

    The doubling time is a characteristic unit (a natural unit of scale) for the exponential growth equation, and its converse for exponential decay is the half-life. As an example, Canada's net population growth was 2.7 percent in the year 2022, dividing 72 by 2.7 gives an approximate doubling time of about 27 years.

  4. Rule of 72 - Wikipedia

    en.wikipedia.org/wiki/Rule_of_72

    In finance, the rule of 72, the rule of 70 [1] and the rule of 69.3 are methods for estimating an investment's doubling time. The rule number (e.g., 72) is divided by the interest percentage per period (usually years) to obtain the approximate number of periods required for doubling.

  5. 10 Warning Signs of Prostate Cancer, According to Doctors - AOL

    www.aol.com/lifestyle/10-warning-signs-prostate...

    PSA levels between 4 and 10 suggest you could have about a 25 percent chance of prostate cancer, and levels over 10 signal that your chance of having the cancer is more than 50 percent.

  6. Dating Over 40? Relationship Expert Says This Is Where to ...

    www.aol.com/dating-over-40-1-relationship...

    Best Dating Site for Hookups Over 40: Tinder. Join Now. Over time, Tinder has developed a reputation for being the destination for finding friends with benefits. And that applies to people over 40 ...

  7. Prostate-specific antigen - Wikipedia

    en.wikipedia.org/wiki/Prostate-specific_antigen

    Prostate-specific antigen (PSA), also known as gamma-seminoprotein or kallikrein-3 (KLK3), P-30 antigen, is a glycoprotein enzyme encoded in humans by the KLK3 gene.PSA is a member of the kallikrein-related peptidase family and is secreted by the epithelial cells of the prostate gland in men and the paraurethral glands in women.

  8. Gabrielle Union delivers powerful PSA to women in their 30s ...

    www.aol.com/news/gabrielle-union-delivers...

    Gabrielle Union is sharing an encouraging message to women in their 30s — namely, that they're not "running out of time." Not even close. "To my girlies in their 30s: Time isn't running out. It ...

  9. Exponential growth - Wikipedia

    en.wikipedia.org/wiki/Exponential_growth

    The growth constant k is the frequency (number of times per unit time) of growing by a factor e; in finance it is also called the logarithmic return, continuously compounded return, or force of interest. The e-folding time τ is the time it takes to grow by a factor e. The doubling time T is the time it takes to double.