نتایج جستجو برای: مولکول cd 4
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It has been demonstrated that the deposit-feeding oligochaete Limnodrilus hoffmeisteri inhabiting Foundry Cove (FC), a severely cadmium (Cd)-contaminated cove located on the Hudson River, New York, USA, has evolved resistance to Cd. In this study we investigate how this resistance influences Cd trophic transfer from this oligochaete to the grass shri.mp Palaernonetes p u g ~ o . Cadmium-resista...
The crystal structure of the title compound, [Cd(2)Cl(2)(C(2)H(8)N(2))(4)]Cl(2), consists of binuclear centrosymmetric [Cd(2)(C(2)H(8)N(2))(4)Cl(2)](2+) cations and discrete chloride anions. The Cd(II) cation is coordinated by four N atoms of two ethyl-enediamine ligands and two symmetry-related chloride anions within a distorted CdN(4)Cl(2) octa-hedron. Two Cd(II) cations are connected by two ...
Lineage commitment is a developmental process by which individual CD4 1 CD8 1 (double positive, DP) thymocytes make a decision to differentiate into either CD4 1 or CD8 1 T cells. However, the molecular event(s) that defines lineage commitment is controversial. We have previously proposed that lineage commitment in DP thymocytes can be molecularly defined as the selective termination of CD4 or ...
Reduced expression of Paneth cell antimicrobial alpha-defensins, human defensin (HD)-5 and -6, characterizes Crohn's disease (CD) of the ileum. TCF-4 (also named TCF7L2), a Wnt signalling pathway transcription factor, orchestrates Paneth cell differentiation, directly regulates the expression of HD-5 and -6, and was previously associated with the decrease of these antimicrobial peptides in a su...
The title compound, [Cd(C(2)O(4))(C(3)H(7)NO)(2)](n), is isostructural with its Mn(II) analogue. The structure comprises zigzag polymeric chains with the oxalate groups situated on inversion centres and the Cd(II) atoms located on twofold rotation axes. The coordination geometry around Cd(II) is distorted octa-hedral and the intra-chain Cd⋯Cd distance is 5.842 (1) Å. C-H⋯O hydrogen bonds exist ...
به رغم اثرات بسیار نامطلوبی که آلودگی خاک بر کیفیت تولیدات مواد غذایی و درنهایت بر زنجیره غذایی انسان و همینطور دیگر اجزا محیط زیست دارد، قدرت خاک برای زیست پالایی این آلاینده ها از جمله کادمیم (cd) در گذشته کمتر مورد توجه قرار گرفته است. کادمیم از جمله آلاینده هایی است که به شدت سمی و برای گیاه و انسان خطر آفرین می باشد. پالایش سبز یکی از ابزارهای مفید برای کاهش غلظت آلاینده ها از جمله cd در خ...
Borosulfates are an expanding class of silicate-analogous materials. We report the syntheses and crystal structures two unconventional cadmium borosulfates. Cd[B2O(SO4)3] crystallises in a new structure type space group Pnma (no. 62, a=896.92(8), b=1152.0(1), c=872.75(8) pm, 1380 refl., 94 ref. param., wR2=0.112). Cd4[B2O(SO4)6] adapts α-Mg4[B2O(SO4)6]-type with P 147, a=822.22(4), c=797.88(5) ...
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