نتایج جستجو برای: pd substitution

تعداد نتایج: 114443  

ژورنال: :شیمی کاربردی 0
نادر رستمی زاده nader rostamizadeh -

در این طرح با ایده ای کاملا نوین، با اختلاط محلول نمک نیترات فلزات نیکل و پالادیم با سل در حال تراکم پایه کاتالیست (آلومینیوم هیدروکسید)، که خود با پیش سازهای مختلف سنتز شده است، بافت نهایی دو نمونه کاتالیستni-pd/al2o3 تهیه می گردد. بدین ترتیب که در یک مورد، قطره قطره آمونیاک غلیظ به محلول آبی نیترات آلومینیوم اضافه شده ورسوب هیدروکسید آلومینیوم با10ph = حاصل می شود، سپس محلول آبی نیترات نیکل و...

Journal: :Neuroscience letters 2005
Ignacio F Mata Julie P Taylor Jennifer Kachergus Mary Hulihan Cecilia Huerta Carlos Lahoz Marta Blazquez Luis M Guisasola Carlos Salvador Renee Ribacoba Carmen Martinez Matthew Farrer Victoria Alvarez

Pathogenic mutations in leucine-rich repeat kinase 2 (LRRK2; PARK8) have been implicated in autosomal dominant, late-onset Parkinson's disease (PD). The LRRK2 4321C>G (R1441G) mutation was originally identified in Spanish families originating from the Basque region. Within this ethnicity, Lrrk2 R1441G substitutions have been suggested as a frequent cause of disease. Herein we have assessed anot...

Journal: :Journal of the American Chemical Society 2008
Paulson Mathew Antonia Neels Martin Albrecht

The [3 + 2] cycloaddition of azides and acetylenes followed by nitrogen quaternization was applied for the generation of novel and highly modular triazolium salts. The selective substitution of the 1,3,4-substitution pattern presets such salts as precursors for a new class of abnormal carbene ligands, thus expanding the family of these high-impact ligands. Metalation of the triazolium salts is ...

2017
Laura Dura Maria Wächtler Stephan Kupfer Joachim Kübel Johannes Ahrens Sebastian Höfler Martin Bröring Benjamin Dietzek Torsten Beweries

A series of boron dipyrromethene (BODIPY) dyes was tested as photosensitisers for light-driven hydrogen evolution in combination with the complex [Pd(PPh3)Cl2]2 as a source for catalytically-active Pd nanoparticles and triethylamine as a sacrificial electron donor. In line with earlier reports, halogenated dyes showed significantly higher hydrogen production activity. All BODIPYs were fully cha...

Journal: :Neuropsychiatric Disease and Treatment 2007
Thomas Müller

Impairment of attention and memory in patients with Alzheimer's disease (AD) is associated with significantly lower levels of acetylcholine. Inhibition of the breakdown of acetylcholine by blocking the enzymes acetylcholinesterase and butyrylcholinesterase with rivastigmine improves this cholinergic depletion. Thus rivastigmine administration provides established, effective, long-term symptomat...

2004
A. Amato

The behavior of the so-called weak moment antiferromagnetic states, observed in the heavy-fermion superconductors UPt3 and URu2Si2, is discussed in view of recent μSR results obtained as function of control parameters like chemical substitution and external pressure. In UPt3, the Pd substitution for Pt reveals the dynamical character of the weak moment order. On the other hand, μSR measurements...

2016
Martin Steger Francesca Tonelli Genta Ito Paul Davies Matthias Trost Melanie Vetter Stefanie Wachter Esben Lorentzen Graham Duddy Stephen Wilson Marco AS Baptista Brian K Fiske Matthew J Fell John A Morrow Alastair D Reith Dario R Alessi Matthias Mann Ivan Dikic

Mutations in Park8, encoding for the multidomain Leucine-rich repeat kinase 2 (LRRK2) protein, comprise the predominant genetic cause of Parkinson's disease (PD). G2019S, the most common amino acid substitution activates the kinase two- to threefold. This has motivated the development of LRRK2 kinase inhibitors; however, poor consensus on physiological LRRK2 substrates has hampered clinical dev...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده علوم انسانی 1389

در این پایان نامه، با استفاده از تکنیک شبیه سازی دینامیک مولکولی (md) به مطالعه، استخراج و مقایسه خواص مکانیکی آلیاژهای pd-rh در دو حالت نانوسیم و بزرگ مقیاس، این فلزات پرداخته می شود. خواص مکانیکی این دو فلز، در حالتهای خالص و آلیاژی با درصدهای مختلف محاسبه شده است. پتانسیل مورد استفاده، پتانسیل ساتن چن می باشد. الگوریتم نوزه هوفر دما را ثابت نگه داشته و تعداد ذرات نیز با استفاده از شرایط مرزی...

Journal: :Organometallics 2022

Thanks to the onio-substitution strategy, tricationic imidazolium salt (1·H)(OTf)3 featuring two N-cyclopropenio substituents was readily prepared in a two-step procedure from 1H-imidazole. The influence of cyclopropenium moieties on electronic properties related dicationic NHC 12+ evaluated basis 1JCH, δ 77Se, and Tolman parameter (TEP) values obtained, respectively, precursor (1·H)(OTf)3, NHC...

Journal: :Physical Review B 2022

We report a doping study directed to intentionally induce disorder in ${\mathrm{PdTe}}_{2}$ by the isoelectronic substitution of Pt. Two single-crystalline batches ${\mathrm{Pd}}_{1\ensuremath{-}x}{\mathrm{Pt}}_{x}{\mathrm{Te}}_{2}$ have been prepared with nominal concentrations $x=0.05$ and $x=0.10$. Sample characterization energy dispersive x-ray spectroscopy revealed Pt did not dissolve homo...

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