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Showing 1 to 12 of 121 entries
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[Congresses of pediatricians in the USSR and their role in development of Soviet pediatrics].

Pediatriia

Lebedev DD, Semenova EI.
PMID: 927992
Pediatriia. 1977 Oct;(10):52-8.

No abstract available.

No Significant Effect of Prefrontal tDCS on Working Memory Performance in Older Adults.

Frontiers in aging neuroscience

Nilsson J, Lebedev AV, Lövdén M.
PMID: 26696882
Front Aging Neurosci. 2015 Dec 14;7:230. doi: 10.3389/fnagi.2015.00230. eCollection 2015.

Transcranial direct current stimulation (tDCS) has been put forward as a non-pharmacological alternative for alleviating cognitive decline in old age. Although results have shown some promise, little is known about the optimal stimulation parameters for modulation in the cognitive...

Switchable Synthesis of 4,5-Functionalized 1,2,3-Thiadiazoles and 1,2,3-Triazoles from 2-Cyanothioacetamides under Diazo Group Transfer Conditions.

The Journal of organic chemistry

Filimonov VO, Dianova LN, Galata KA, Beryozkina TV, Novikov MS, Berseneva VS, Eltsov OS, Lebedev AT, Slepukhin PA, Bakulev VA.
PMID: 28328204
J Org Chem. 2017 Apr 21;82(8):4056-4071. doi: 10.1021/acs.joc.6b02736. Epub 2017 Apr 03.

High yield solvent-base-controlled, transition metal-free synthesis of 4,5-functionalized 1,2,3-thiadiazoles and 1,2,3-triazoles from 2-cyanothioacetamides and sulfonyl azides is described. Under diazo transfer conditions in the presence of a base in an aprotic solvent 2-cyanothioacetamides operating as C-C-S building blocks produce...

Peptide-Induced Amyloid-Like Conformational Transitions in Proteins.

International journal of peptides

Egorov V, Grudinina N, Vasin A, Lebedev D.
PMID: 26435719
Int J Pept. 2015;2015:723186. doi: 10.1155/2015/723186. Epub 2015 Sep 08.

Changes in protein conformation can occur both as part of normal protein functioning and during disease pathogenesis. The most common conformational diseases are amyloidoses. Sometimes the development of a number of diseases which are not traditionally related to amyloidoses...

Cyclization of ortho-cyclopropylphenyl benzamides in gas and liquid phases.

Journal of the American Society for Mass Spectrometry

Lebedev AT, Dianova IV, Mochalov SS, Lobodin VV, Samguina TY, Gazzaeva RA.
PMID: 11506228
J Am Soc Mass Spectrom. 2001 Aug;12(8):956-63. doi: 10.1016/s1044-0305(01)00277-x.

The electron ionization (EI) and collision-induced dissociation (CID) spectra of substituted N-(ortho-cyclopropylphenyl)benzamides 1-7 and N-[ortho-(1-methylcyclopropyl)phenyl]benzamides 8-12 were recorded. In addition to routine bond cleavages, the molecular ions (M+) of 1-12 undergo cyclization into the corresponding 3-aryl-1-alkyl-1-ethyl-1H-benzoxazines and isomeric 5-ethyl-2-oxodibenzoazepines....

Synthesis of 1-aryl-1H-indazoles via palladium-catalyzed intramolecular amination of aryl halides.

The Journal of organic chemistry

Lebedev AY, Khartulyari AS, Voskoboynikov AZ.
PMID: 15651807
J Org Chem. 2005 Jan 21;70(2):596-602. doi: 10.1021/jo048671t.

Palladium-catalyzed cyclization of arylhydrazones of 2-bromoaldehydes and 2-bromoacetophenones to give 1-aryl-1H-indazoles has been studied in detail. The cyclization of arylhydrazone of 2-bromobenzaldehydes can be performed with good to high yields using Pd(dba)2 and chelating phosphines, of which the most...

Dynamical resurrection of the visibility in a Mach-Zehnder interferometer.

Physical review letters

Lebedev AV, Blatter G.
PMID: 21902415
Phys Rev Lett. 2011 Aug 12;107(7):076803. doi: 10.1103/PhysRevLett.107.076803. Epub 2011 Aug 10.

We study a single-electron pulse injected into the chiral edge state of a quantum Hall device and subject it to a capacitive Coulomb interaction. We find that the scattered multiparticle state remains unentangled and hence can be created itself...

Degradative pathways for aqueous chlorination of orcinol.

Environmental science & technology

Tretyakova NY, Lebedev AT, Petrosyan VS.
PMID: 22196542
Environ Sci Technol. 1994 Apr 01;28(4):606-13. doi: 10.1021/es00053a012.

No abstract available.

Large-scale resting state network correlates of cognitive impairment in Parkinson's disease and related dopaminergic deficits.

Frontiers in systems neuroscience

Lebedev AV, Westman E, Simmons A, Lebedeva A, Siepel FJ, Pereira JB, Aarsland D.
PMID: 24765065
Front Syst Neurosci. 2014 Apr 03;8:45. doi: 10.3389/fnsys.2014.00045. eCollection 2014.

Cognitive impairment is a common non-motor feature of Parkinson's disease (PD). Understanding the neural mechanisms of this deficit is crucial for the development of efficient methods for treatment monitoring and augmentation of cognitive functions in PD patients. The current...

Intermittently "Pre-Excited" ECG after Accessory Pathway Ablation: Unsuccessful Procedure or a Complication?.

Case reports in cardiology

Mikhaylov E, Voitkovskaya E, Lebedev D.
PMID: 24826240
Case Rep Cardiol. 2012;2012:289067. doi: 10.1155/2012/289067. Epub 2012 Aug 07.

A 52-year-old woman with previously unsuccessful posteroseptal pathway ablation using radiofrequency energy presented with intermittently occurring short PR followed by a wide QRS complex, and complaining of palpitations with characteristics different from previous history. During a second electrophysiological procedure...

The Key Ru.

Journal of the American Chemical Society

Lebedev D, Pineda-Galvan Y, Tokimaru Y, Fedorov A, Kaeffer N, Copéret C, Pushkar Y.
PMID: 29219306
J Am Chem Soc. 2018 Jan 10;140(1):451-458. doi: 10.1021/jacs.7b11388. Epub 2017 Dec 20.

Improvement of the oxygen evolution reaction (OER) is a challenging step toward the development of sustainable energy technologies. Enhancing the OER rate and efficiency relies on understanding the water oxidation mechanism, which entails the characterization of the reaction intermediates....

Investigation of compound formation sequence in Al/Ni/…/Al/Ni multilayer system under conditions of an excessive amount of one component and its prediction using the analogy with gas system behavior.

Heliyon

Sorokina LI, Lebedev EA, Trifonov AY, Gromov DG.
PMID: 30891513
Heliyon. 2019 Feb 28;5(2):e01267. doi: 10.1016/j.heliyon.2019.e01267. eCollection 2019 Feb.

Interaction processes in Al/Ni/.../Al/Ni multilayer systems with an excess of one of the components are studied by of DSC, XRD and TEM methods. It is shown that the compounds formation sequence differs depending on which component is excessive. There...

Showing 1 to 12 of 121 entries