39,026 research outputs found

    T. S. Walker 25 cents (twenty-five cents) private scrip

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    (L) Eagle. (R) ''25''.This private scrip was issued in Gonzales by T. S. Walker. An eagle is printed in the center of an ornate border design along the left edge of the note. The number ''25'' is printed in the center of the right border in a bold typeface. The amount ''TWENTY-FIVE CENTS'' appears in the upper-center of the note. The date, May 5, 1862., is printed along the bottom edge. BC-407.T. S. Walke

    T. S. Walker 25 cents (twenty-five cents) private scrip

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    (L) Sailing ship. (R) ''25''.This private scrip was issued in Gonzales by T. S. Walker. A small sailing ship is printed within an ornate border design along the left edge of the note. The number ''25'' is printed in the center of the right border in a bold typeface. The amount ''TWENTY-FIVE CENTS'' appears in two lines along the upper-center of the note. The date, May 5, 1862., is printed along the bottom edge. BC-408.T. S. Walke

    T. S. Walker 50 cents (fifty cents) private scrip

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    (L) Eagle. (R) ''50''.This private scrip was issued in Gonzales by T. S. Walker. An eagle is printed in the center of an ornate border design along the left edge of the note. The number ''50'' is printed in the center of the right border in a bold typeface. The amount ''FIFTY CENTS'' appears in the upper-center of the note. The date, May 5, 1862., is printed along the bottom edge. BC-409

    R. H. Walker- Mrs. M. T. Taylor, June 5, 1926

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    Correspondence: Typed letter from Rosa G. Holmes Walker requesting payment from Mrs. M.T. Taylor, Orlando, Florida. Includes handwritten response from Mrs. Taylor on the front and back of the original letter

    R. H. Walker

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    Verso: [imprinted] S. B. Hill, Photographer, 817 Congress Ave., Austin, Texas.; [handwritten] R. H. Walker, July 14th 1882, Presented to Mammie Letter

    James T. Jones, (1935-1975), purchased by Rosemary Jones on December 16, 1975.

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    Documents regarding the headstone for James T. Jones, (1935-1975), purchased by Rosemary Jones. The marker was placed at Woodlawn Cemetery, Section 21-A in Toledo, Ohio. The stone is made of R. A. starlite Black with Mod Classic letters

    A photo of Samuel T. Walker and Lucy Edith (Mckune) Walker

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    A photo of Samuel T. Walker, son of Elkanah Walker and Mary Richardson Walker, and his wife, Lucy Edith (Mckune) Walker. They are posed with the side-saddle Mary rode on the trip west.[front] The side-saddle Mary Walker rode on the trip west in 1838 -- now in O.H.S. in Portland (S. T. Walker + wife). [back] Sam Walker, Lucy Walker. In the foreground the side saddle Mary R. Walker rode crossing the country in 1838. Now in Oregon Hist. Society

    Water resources research in Virginia, 1969-1971

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    William R. Walker, T. W. Johnson, editor

    Conducting t-tests in R (STA80006 Using R for Statistical Analysis)

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    This video demonstrates how to conduct one-sample, two-sample, and paired t-tests in the R statistical software. Video originally created for STA80006 Using R for Statistical Analysis

    f(R,T)=f(R)+λTf(R,T)=f(R)+\lambda T f(R,T)=f(R)+λT gravity models as alternatives to cosmic acceleration

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    Abstract This article presents cosmological models that arise in a subclass of f(R,T)=f(R)+f(T)f(R,T)=f(R)+f(T) f(R,T)=f(R)+f(T) gravity models, with different f(R) functions and fixed T-dependence. That is, the gravitational lagrangian is considered as f(R,T)=f(R)+λTf(R,T)=f(R)+\lambda T f(R,T)=f(R)+λT , with constant λ\lambda λ . Here R and T represent the Ricci scalar and trace of the stress-energy tensor, respectively. The modified gravitational field equations are obtained through the metric formalism for the Friedmann–Lemaître–Robertson–Walker metric with signature (+,,,)(+,-,-,-) (+,-,-,-) . We work with f(R)=R+αR2μ4Rf(R)=R+\alpha R^2-\frac{\mu ^4}{R} f(R)=R+αR2-μ4R , f(R)=R+kln(γR)f(R)=R+k\ln (\gamma R) f(R)=R+kln(γR) and f(R)=R+me[nR]f(R)=R+me^{[-nR]} f(R)=R+me[-nR] , with α,μ,k,γ,m\alpha , \mu , k, \gamma , m α,μ,k,γ,m and n all free parameters, which lead to three different cosmological models for our Universe. For the choice of λ=0\lambda =0 λ=0 , this reduces to widely discussed f(R) gravity models. This manuscript clearly describes the effects of adding the trace of the energy-momentum tensor in the f(R) lagrangian. The exact solution of the modified field equations are obtained under the hybrid expansion law. Also we present the Om diagnostic analysis for the discussed models
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