نتایج جستجو برای: بیهنجاری eu
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Noteworthy, both European agencies most recently have started a discussion toward strategic planning including the tools and ways safety assessments should be done. This represents a major change from their former more receiving and executing roles. It is not clear how much of this change is harmonized and coordinated, e.g., by the Agency Network Scientific Advice54 (ANSA), but they appear rath...
In the title centrosymmetric dinuclear Eu(III) complex, [Eu(2)(CH(3)COO)(6)(C(12)H(8)N(2))(2)], each Eu(III) cation is coordinated by seven O atoms from five acetate anions and two N atoms from one phenanthroline ligand in a distorted tricapped trigonal-prismatic geometry. Four acetate anions bridge two Eu(III) cations to form the dinuclear complex, with an Eu⋯Eu distance of 3.9409 (8) Å. Weak ...
Integration of luminescent rare earth ions and iridescence into a zirconium oxide photonic material is attractive for the design of new optical devices. The free-standing chiral nematic mesoporous films of ZrO2:Eu(3+) are assembled by a hard-templating approach using nanocrystalline cellulose-templated silica. The ZrO2:Eu(3+) films show tunable optical properties. The chiral nematic structured ...
Visible light excitable and color tunable ∼5% Eu(3+)-doped LaF3 nanocrystals (NCs), containing 9-oxidophenalenone ligands bound to the surface as visible light sensitizers for Eu(3+) dopants, have been synthesized by a facile solution-based method. The crystalline phase structure, size, composition, morphology and luminescence properties of the NCs are characterized using X-ray diffraction, hig...
abstract the eu neighborhood policy is a road map that will depict the perspective of european :union:’s relations with its neighbors. the membership of the neighbors in the :union: is impossible, because they are confronted with deep domestic and foreign problems, and on the other hand eu’s security, political and economic interests in these countries lead to offering of the eu neighborhood po...
By drafting statutes and delegated acts, national legislative drafters play a crucial role in European Union (EU) compliance. Given their extensive legal training, they can be expected to operate as ‘guardians of EU law’ and thus correct national non-compliant tendencies. Yet, they also have a role as politically loyal civil servants, responsive to national political demands. This conntribution...
Over the past decades the importance of metals in biology has been increasingly recognised. Approximately one third of the human proteome contains metal cations, either in the form of cofactors, with catalytic function, or as structural support elements. Moreover, a growing number of diseases have been identified that are characterised by metal imbalance in cells and tissues. Hence, the identif...
Europium tris-b-diketonates (Eu(L)3 nH2O) show concentration quenching of luminescence in toluene solutions due to the formation of weakly luminescent dimers. Addition of water to the concentrated toluene solutions of Eu(L)3 nH2O unexpectedly enhances quantum yield ðfÞ and lifetime of Eu 3+ luminescence by causing dissociation of dimers and by reducing quenching of excited Eu through the ligand...
OBJECTIVE To estimate the burden of disease attributable to low fruit and vegetable intake in the 15 countries that were members of the European Union (EU) before May 2004 (EU-15) and the 10 countries that then joined it (EU-10). DESIGN Data on fruit and vegetable intake, target levels of intake and estimates of relative risks, deaths and disability were combined to obtain the burden of ischa...
E-business processes are implemented through existing, as well as novel technologies. This book chapter focuses on the field of electronic markets (e-markets), and studies the technologies and solutions that are applied and proposed in this field. In particular, the chapter reviews e-market literature in order to identify which are the technological trends that have appeared in the e-markets fi...
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