John L. Lewis

(noun)

An American leader of organized labor who served as president of the United Mine Workers of America (UMW) from 1920 to 1960. A major player in the history of coal mining, he was the driving force behind the founding of the Congress of Industrial Organizations (CIO), which helped organize millions of industrial workers in the 1930s.

Related Terms

  • William Green
  • Flint Sit-Down Strike
  • New Deal Coalition

Examples of John L. Lewis in the following topics:

  • A New Direction for Unions

    • Most AFL leaders, including president William Green, were reluctant to shift from the organization's longstanding tradition of craft unionism and started to clash with other leaders within the organization, such as John L.
    • Lewis, the president of the United Mine Workers of America (UMW).
    • In 1943, Lewis, still the president of the United Mine Workers, led one of the biggest war-time strikes.
    • John L.
    • Lewis, President of the United Mine Workers of America and founder of the CIO, photographed at the Capitol in 1922.
  • A Brief History of Organized Labor

    • The CIO under John L.
    • Lewis split off and competed aggressively for membership.
  • Toward Permanent Unions

    • Under John L.
    • Lewis , the CIO , or Congress of Industrial Organizations, split off and competed aggressively for membership.
  • Lewis Acid and Base Molecules

    • Lewis bases are electron-pair donors, whereas Lewis acids are electron-pair acceptors.
    • A Lewis acid is defined as an electron-pair acceptor, whereas a Lewis base is an electron-pair donor.
    • A Lewis base, therefore, is any species that donates a pair of electrons to a Lewis acid.
    • Under the Lewis definition, hydroxide acts as the Lewis base, donating its electron pair to H+.
    • We first look at the Bronsted-Lowry theory, and then describe Lewis acids and bases according to the Lewis Theory.
  • Trihalides: Boron-Halogen Compounds

    • Trihalides adopt a planar trigonal structure and are Lewis acids.
    • The trihalides form planar trigonal structures and are Lewis acids because they readily form adducts with electron-pair donors, which are called Lewis bases.
    • All three lighter boron trihalides, BX3 (X = F, Cl, Br), form stable adducts with common Lewis bases.
    • Such measurements have revealed the following sequence for the Lewis acidity: BF3 < BCl3 < BBr3 (in other words, BBr3 is the strongest Lewis acid).
    • In an alternative explanation, the low Lewis acidity for BF3 is attributed to the relative weakness of the bond in the adducts F3B-L.
  • 1-D Separation of Variables: Summary of the Argument

    • with $\omega/c = \pi n /l$, $\omega/c = \pi n /l$, $\omega/c = \pi n /l$, arbitrary constants.
    • $\displaystyle{u(x,t) = DA \sin\left(\frac{\pi n}{l} x\right) \cos\left(\frac{\pi nc}{l}t\right) + DB \sin\left(\frac{\pi n}{l} x\right) \sin \left(\frac{\pi nc}{l} t\right). }$
    • $\displaystyle{u(x,t) = A \sin\left(\frac{\pi n}{l} x\right) \cos\left(\frac{\pi nc}{l}t\right) + B \sin\left(\frac{\pi n}{l} x\right) \sin\left(\frac{\pi nc}{l} t\right). }$
    • $\displaystyle{A \sin\left(\frac{\pi n}{l} x\right) \cos\left(\frac{\pi nc}{l}t\right) + B \sin\left(\frac{\pi n}{l} x\right) \sin\left(\frac{\pi nc}{l} t\right)}$
    • $\displaystyle{\sum _ n A_n \sin\left(\frac{\pi n}{l} x\right) \cos\left(\frac{\pi nc}{l}t\right) + B_n \sin\left(\frac{\pi n}{l} x\right) \sin\left(\frac{\pi nc}{l} t\right)}$
  • Acknowledgements

  • Nature of Acids and Bases

    • Lewis acid: any substance that can accept a pair of electrons.
    • A list of various Lewis bases (right) and Lewis acids (left).
    • In this video I introduce to you guys what the heck an Acid and Base really is forgetting the Lewis or Bronstead/Lowry definitions and then we'll go more in depth in parts 2,3, and 4.
  • Superposition and orthogonal projection

    • $\displaystyle{ (u,v) \equiv \int _ {-l} ^l u(x) v(x) dx . }$
    • Let $\phi_k (x) = \sin(k \pi x/l)$ and $\psi_k(x) = \cos(k \pi x/l)$ .
    • $\displaystyle{a_n = \frac{1}{l} \int _ {- l} ^ l f(x) \cos(n \pi x /l) dx = \frac{1}{l} (f,\psi _ n),}$
    • $\displaystyle{b_n = \frac{1}{l} \int _ {- l} ^ l f(x) \sin(n \pi x /l) dx = \frac{1}{l} (f,\phi _ n). }$
    • $\displaystyle{c_n = \frac{1}{2 l} \int _ {- l} ^ l f(x) e^{-i n \pi x /l} dx. }$
  • Basic and Amphoteric Hydroxides

    • Here, aluminum hydroxide picks up an hydroxide ion out of solution, thereby acting as a Lewis acid.
    • Consider the Lewis structure for Al(OH)3.
    • Aluminum hydroxide can act as either a Bronsted-Lowry base, by accepting protons from an acidic solution, or as a Lewis acid, by accepting an electron pair from hydroxide ions in a basic solution.
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