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Related Concept Videos

Radicals01:27

Radicals

849
Roots, often written as radicals, identify the quantity that must be raised to a specific exponent to produce a given value. A radical expression consists of two main components: the radicand, which is the value placed inside the root symbol, and the index, which indicates the degree of the root being taken. The notation n√a indicates the principal nth root of a. If n equals 2, the operation is the square root, while n = 3 defines the cube root. When n is even, a negative radicand does...
849
Radical Reactivity: Overview01:11

Radical Reactivity: Overview

3.0K
Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired...
3.0K
Radical Equations01:26

Radical Equations

475
Radical equations are mathematical expressions in which the variable is found within a radical, most commonly a square root or cube root. These equations frequently arise in science, engineering, and real-world measurements involving nonlinear relationships. To solve a radical equation, the standard procedure is to isolate the radical expression and then eliminate the radical by raising each side to a power equal to the index of the radical. This process may lead to extraneous...
475
Radical Reactivity: Electrophilic Radicals01:02

Radical Reactivity: Electrophilic Radicals

2.6K
Radicals adjacent to electron‐withdrawing groups are called electrophilic radicals. These radicals readily react with nucleophilic alkenes. For example, the malonate radical, in which the radical center is flanked by two electron‐withdrawing groups, reacts readily with butyl vinyl ether, which consists of an electron‐donating oxygen substituent. The reaction between electrophilic malonate radical and nucleophilic vinyl ether is favored because the radical has a...
2.6K
Radical Formation: Elimination00:51

Radical Formation: Elimination

2.4K
Another method of radical formation is the elimination process. It is the opposite of the addition route and is driven by the instability of the radical. For example, as depicted in Figure 1, dibenzoyl peroxide yields a pair of unstable radicals upon homolysis. Given its instability, this radical spontaneously undergoes elimination via a C–C bond cleavage to form a relatively more stable phenyl radical. The mechanism involves cleavage of the bond between the α and β positions with respect...
2.4K
Radical Formation: Addition00:47

Radical Formation: Addition

2.4K
Radicals can be formed by adding a radical to a spin-paired molecule. This is typically observed with unsaturated species, where the addition of a radical across the π bond leads to the production of a new radical by dissolving the π bond. For example, the addition of a Br radical to an alkene yields a carbon-centered radical.
Similar to charge conservation in chemical reactions, spin conservation is implicit for radical reactions. Accordingly, the product formed must possess an...
2.4K

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Exploring the Radical Nature of a Carbon Surface by Electron Paramagnetic Resonance and a Calibrated Gas Flow
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Exploring the Radical Nature of a Carbon Surface by Electron Paramagnetic Resonance and a Calibrated Gas Flow

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The radical.

G Quick

    Nursing Standard (Royal College of Nursing (Great Britain) : 1987)
    |May 26, 2016
    PubMed
    Summary
    This summary is machine-generated.

    Gayle Quick, a 25-year-old enrolled nurse, is now the youngest member of the English National Board. Her appointment highlights the growing recognition and need for diverse nursing perspectives in healthcare governance.

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    Area of Science:

    • Healthcare Governance
    • Nursing Leadership

    Background:

    • The English National Board requires diverse representation.
    • Enrolled nurses (ENs) are crucial healthcare providers.

    Purpose of the Study:

    • To increase enrolled nurse representation on the English National Board.
    • To ensure ENs' perspectives are included in national healthcare policy.

    Main Methods:

    • Colleagues nominated Gayle Quick.
    • Gayle Quick accepted the position.

    Main Results:

    • Gayle Quick, aged 25, is the youngest member.
    • She now serves on the English National Board.

    Conclusions:

    • The appointment signifies a step towards greater inclusivity in healthcare leadership.
    • Younger and diverse nursing voices are being recognized at the national level.