Long Nguyen Thanh

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BACKGROUND The global initiative 'Treatment 2.0' calls for expanding the evidence base of optimal HIV service delivery models to maximize HIV case detection and retention in care. However limited systematic assessment has been conducted in countries with concentrated HIV epidemic. We aimed to assess HIV service availability and service connectedness in(More)
We study the initial-boundary value problem for a nonlinear wave equation given by utt − uxx + ∫ t 0 k(t− s)uxx(s)ds+ |ut| ut = f(x, t, u), ux(0, t) = u(0, t), ux(1, t) + ηu(1, t) = g(t), u(x, 0) = u0(x), ut(x, 0) = u1(x), where η ≥ 0, q ≥ 2 are given constants and u0, u1, g, k, f are given functions. In this paper, we consider two main parts. In Part 1,(More)
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