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We prove that if $ n \\geq 7$ and $ u_0 \\geq 0$, then any blowup must be of Type I, i.e., \\[\\|u(\\cdot, t)\\|_{L^\\infty({\\mathbb R}^n)}\\leq C(T-t)^{-\\frac{1}{p-1}}.\\] A similar result holds for bounded convex domains. 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We prove that if $ n \\geq 7$ and $ u_0 \\geq 0$, then any blowup must be of Type I, i.e., \\[\\|u(\\cdot, t)\\|_{L^\\infty({\\mathbb R}^n)}\\leq C(T-t)^{-\\frac{1}{p-1}}.\\] A similar result holds for bounded convex domains. 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