15,177 research outputs found

    Dying for the bonds of marriage: Forced marriages as a weapon of genocide

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    ‘Forced marriages’ involve a woman or girl being abducted and declared the ‘wife’ of her captor without her consent or her family’s consent. The practice generally occurs during wartime and the ‘wife’ is normally subjected to rape, forced impregnation and sexual slavery. Moreover, she is coerced into an intimate relationship with a man who is often the perpetrator of crimes against her and her community. While forced marriages have recently been recognised as a crime against humanity, this Article contends that this does not constitute full recognition of the destructive nature of forced marriages. Instead, this Article mirrors and extends the Akayesu decision that rape can be used as a tool of genocide and maintains that forced marriages can also be a form of genocide

    A class of high-order Runge-Kutta-Chebyshev stability polynomials

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    The analytic form of a new class of factorized Runge-Kutta-Chebyshev (FRKC) stability polynomials of arbitrary order NN is presented. Roots of FRKC stability polynomials of degree L=MNL=MN are used to construct explicit schemes comprising LL forward Euler stages with internal stability ensured through a sequencing algorithm which limits the internal amplification factors to ∼L2\sim L^2. The associated stability domain scales as M2M^2 along the real axis. Marginally stable real-valued points on the interior of the stability domain are removed via a prescribed damping procedure. By construction, FRKC schemes meet all linear order conditions; for nonlinear problems at orders above 2, complex splitting or Butcher series composition methods are required. Linear order conditions of the FRKC stability polynomials are verified at orders 2, 4, and 6 in numerical experiments. Comparative studies with existing methods show the second-order unsplit FRKC2 scheme and higher order (4 and 6) split FRKCs schemes are efficient for large moderately stiff problems.Comment: 24 pages, 5 figures. Accepted for publication in Journal of Computational Physics, 22 Jul 2015. Revise

    Runge-Kutta-Gegenbauer explicit methods for advection-diffusion problems

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    In this paper, Runge-Kutta-Gegenbauer (RKG) stability polynomials of arbitrarily high order of accuracy are introduced in closed form. The stability domain of RKG polynomials extends in the the real direction with the square of polynomial degree, and in the imaginary direction as an increasing function of Gegenbauer parameter. Consequently, the polynomials are naturally suited to the construction of high order stabilized Runge-Kutta (SRK) explicit methods for systems of PDEs of mixed hyperbolic-parabolic type. We present SRK methods composed of LL ordered forward Euler stages, with complex-valued stepsizes derived from the roots of RKG stability polynomials of degree LL. Internal stability is maintained at large stage number through an ordering algorithm which limits internal amplification factors to 10L210 L^2. Test results for mildly stiff nonlinear advection-diffusion-reaction problems with moderate (≲1\lesssim 1) mesh P\'eclet numbers are provided at second, fourth, and sixth orders, with nonlinear reaction terms treated by complex splitting techniques above second order.Comment: 20 pages, 7 figures, 3 table

    Auditory training records for the preschool deaf and severely hard of hearing.

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    Thesis (Ed.M.)--Boston University 2 disk recordings. In Audio-Visual Library
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