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  2. Stop and yield lines - Wikipedia

    en.wikipedia.org/wiki/Stop_and_yield_lines

    Stop line in Toyokawa, Aichi, Japan Give Way lines in the UK "Shark's teeth" yield lines (white isosceles triangles) as used in the US and many European countries. Stop and yield lines [1] are transverse road surface markings that inform drivers where they should stop or yield when approaching an intersection.

  3. Durbin–Watson statistic - Wikipedia

    en.wikipedia.org/wiki/Durbin–Watson_statistic

    In statistics, the Durbin–Watson statistic is a test statistic used to detect the presence of autocorrelation at lag 1 in the residuals (prediction errors) from a regression analysis. It is named after James Durbin and Geoffrey Watson. The small sample distribution of this ratio was derived by John von Neumann (von Neumann, 1941).

  4. Brodifacoum - Wikipedia

    en.wikipedia.org/wiki/Brodifacoum

    Brodifacoum is a highly lethal 4-hydroxycoumarin vitamin K antagonist anticoagulant poison.In recent years, it has become one of the world's most widely used pesticides.It is typically used as a rodenticide, but is also used to control larger pests such as possums.

  5. Mercury contamination in Grassy Narrows - Wikipedia

    en.wikipedia.org/wiki/Mercury_contamination_in...

    On June 6, 2016, Grand Chief Fobister led a march with a thousand protestors in downtown Toronto, to "demand a clean up of the mercury poison that has been left in their river for over 50 years". [8] Chief Fobister announced that an expert report, which was released on June 6, 2016 had found that the river was "still highly contaminated" and ...

  6. Toxicology testing - Wikipedia

    en.wikipedia.org/wiki/Toxicology_testing

    U.S. Army Public Health Center Toxicology Lab technician assessing samples. Toxicology testing, also known as safety assessment, or toxicity testing, is the process of determining the degree to which a substance of interest negatively impacts the normal biological functions of an organism, given a certain exposure duration, route of exposure, and substance concentration.

  7. Mees' lines - Wikipedia

    en.wikipedia.org/wiki/Mees'_lines

    Mees' lines can look similar to injury to the nail, which should not be confused with true Mees' lines. [1]Mees' lines appear after an episode of poisoning with arsenic, [2] thallium or other heavy metals or selenium, [3] opioid MT-45, and can also appear if the subject is suffering from kidney failure. [4]

  8. Detrended correspondence analysis - Wikipedia

    en.wikipedia.org/wiki/Detrended_correspondence...

    Detrended correspondence analysis (DCA) is a multivariate statistical technique widely used by ecologists to find the main factors or gradients in large, species-rich but usually sparse data matrices that typify ecological community data.

  9. Renewal theory - Wikipedia

    en.wikipedia.org/wiki/Renewal_theory

    Renewal theory is the branch of probability theory that generalizes the Poisson process for arbitrary holding times. Instead of exponentially distributed holding times, a renewal process may have any independent and identically distributed (IID) holding times that have finite expectation.