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Related Concept Videos

Multiple Comparison Tests01:13

Multiple Comparison Tests

4.0K
Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
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McNemar's Test01:23

McNemar's Test

328
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...
328
Law of Independent Assortment02:03

Law of Independent Assortment

55.9K
While Mendel’s Law of Segregation states that the two alleles for one gene are separated into different gametes, a different question of how different genes are inherited remains. For example, is the gene for tall plants inherited with the gene for green peas? Mendel asked this question by experimenting with a dihybrid cross; a cross in which both parents are homozygous for two distinct traits resulting in an F1 generation that are heterozygous for both traits.
55.9K
Masking and Demasking Agents01:19

Masking and Demasking Agents

2.5K
EDTA titrations may necessitate masking and demasking agents to temporarily protect a particular metal ion in a mixture from the EDTA reaction. These agents facilitate the sequential analysis of the metal ions by forming stable complexes with some—but not all—metal ions during certain steps.
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on...
2.5K
Capillary Electrophoresis: Applications01:30

Capillary Electrophoresis: Applications

443
Capillary electrophoretic separations offer various modes, each with unique applications. These modes include capillary zone electrophoresis, capillary gel electrophoresis, capillary array electrophoresis, capillary isoelectric focusing, capillary isotachophoresis, micellar electrokinetic chromatography, and capillary electrochromatography.
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
443
Electric Field of Two Equal and Opposite Charges01:30

Electric Field of Two Equal and Opposite Charges

6.0K
Atoms generally contain the same number of positively and negatively charged particles, protons, and electrons. Hence, they are electrically neutral. However, the centers of the positive and negative charges do not always coincide. In such a scenario, the electric field of an atom may not be zero.
A separation of the positive and negative charges can lead to a weak, remnant effect of the positive and negative charges. The expectation is that the more the distance between the positive and...
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Antitrust Order Aimed at Equalizing MCED Field

    Cancer Discovery
    |June 2, 2023
    PubMed
    Summary

    The FTC ordered Illumina to sell Grail, a cancer diagnostics company. This aims to boost competition and access to DNA sequencing for early cancer detection.

    Area of Science:

    • Biotechnology
    • Genomics
    • Oncology

    Background:

    • Illumina, a leader in DNA sequencing technology, acquired Grail, a pioneer in multi-cancer early detection (MCED) tests.
    • Concerns arose regarding potential monopolization of the MCED market and restricted access to essential sequencing technologies.

    Purpose of the Study:

    • To analyze the Federal Trade Commission's (FTC) ruling on Illumina's divestiture of Grail.
    • To assess the impact of this ruling on market competition and technological accessibility in the MCED sector.

    Main Methods:

    • Review of the FTC's official ruling and accompanying legal documents.
    • Analysis of market dynamics in the early cancer detection and DNA sequencing industries.

    Main Results:

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    • The FTC mandated Illumina to divest Grail on April 3.
    • The decision is intended to foster a more competitive landscape for multi-cancer early detection.

    Conclusions:

    • The FTC's ruling aims to ensure equitable access to critical DNA sequencing technology.
    • This regulatory action is expected to stimulate innovation and broaden patient access to life-saving cancer diagnostics.