Video Experimental Relacionado

Updated: Jul 11, 2026

Loss-of-Function Approach in the Embryonic Chick Retina by Using Tol2 Transposon-Mediated Transgenic Expression of Artificial microRNAs
06:58

Loss-of-Function Approach in the Embryonic Chick Retina by Using Tol2 Transposon-Mediated Transgenic Expression of Artificial microRNAs

Published on: May 18, 2022

Sobre la predicción del El Niño de 1986-1987

T Barnett, N Graham, M Cane

    Science (New York, N.Y.)
    |July 8, 1988
    PubMed
    Resumen

    Los modelos numéricos predijeron con precisión el evento de El Niño de 1986-87 con 3-9 meses de antelación. Esto demuestra la viabilidad de la predicción rutinaria de El Niño mediante la simulación de cambios a gran escala en el océano tropical y la atmósfera.

    Más Videos Relacionados

    Mechanoluminescent Visualization of Crack Propagation for Joint Evaluation04:58

    Mechanoluminescent Visualization of Crack Propagation for Joint Evaluation

    Published on: January 6, 2023

    Videos de Conceptos Relacionados

    Prediction Intervals01:03

    Prediction Intervals

    The interval estimate of any variable is known as the prediction interval. It helps decide if a point estimate is dependable.
    However, the point estimate is most likely not the exact value of the population parameter, but close to it. After calculating point estimates, we construct interval estimates, called confidence intervals or prediction intervals. This prediction interval comprises a range of values unlike the point estimate and is a better predictor of the observed sample value, y. 
    The...
    End Point Prediction: Gran Plot01:07

    End Point Prediction: Gran Plot

    A Gran plot is used to predict the equivalence volume or endpoint of a potentiometric or acid-base titration without reaching the endpoint. Typically, titration data is collected as a function of the titrant's volume up to a point less than the equivalence volume and then transformed into a linear format. The straight line is extended to the x-axis, indicating the necessary titrant volume to achieve the equivalence point.
    For potentiometric titration, the Gran plot is created by plotting the...
    Predicting Products: SN1 vs. SN202:27

    Predicting Products: SN1 vs. SN2

    Nucleophilic substitution reactions of alkyl halides can proceed via an SN1 or an SN2 mechanism. While in SN2 reactions, the nucleophile attacks the substrate simultaneously as the leaving group departs, in SN1 reactions, the substrate first dissociates to give the carbocation intermediate. Various factors such as the structure of the substrate, the strength of the nucleophile, and the nature of the solvent promote one mechanism over the other.
    With increased substitution on the alkyl halide,...
    Predicting Reaction Outcomes02:24

    Predicting Reaction Outcomes

    Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...
    Regression Toward the Mean01:52

    Regression Toward the Mean

    Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...
    McNemar's Test01:23

    McNemar's Test

    McNemar's Test is a nonparametric statistical test used to determine if there is a significant difference in proportions between two related groups when the outcome is binary (e.g., yes/no, success/failure). It is beneficial when we have paired data, such as pre-test/post-test designs, where the same subjects are measured under two different conditions. The test is named after the statistician Quinn McNemar, who introduced it in 1947. It is commonly used in situations where subjects are...