نتایج جستجو برای: sugar beetis an essentially self
تعداد نتایج: 6043024 فیلتر نتایج به سال:
In addition to genetic differences between individuals as a result of nucleotide sequence variation, epigenetic changes that occur as a result of DNA methylation may also contribute to population niche width by enhancing phenotypic plasticity, although this intriguing possibility remains essentially untested. Using the nectar-living yeast Metschnikowia reukaufii as study subject, we examine the...
Let M be a complete Riemannian manifold and D : C∞ 0 (E) → C∞ 0 (F ) a first order differential operator acting between sections of the hermitian vector bundles E, F . Moreover, let V : C∞(E) → L∞ loc (E) be a self–adjoint zero order differential operator. We give a sufficient condition for the Schrödinger operator H = DD + V to be essentially self–adjoint. This generalizes recent work of I. Ol...
The oxidation of D-ribose and 2-deoxy-D-ribose by CrVI yields the aldonic acid and Cr3+ as final products when an excess of sugar over CrVI is used. The redox reaction occurs through CrVI→CrIII and CrVI→CrV→CrIII paths. The complete rate laws for the CrVI oxidation reactions are expressed by –d[CrVI]/dt = kH[H +]2 [ribose][CrVI], where kH = (5.9 ± 0.1) × 10–2 mol–3 dm9 s–1, and –d[CrVI]/dt = (k...
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