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[THE CERTAIN TENDENCIES OF MODERN MEDICAL ETHICS].

Problemy sotsial'noi gigieny, zdravookhraneniia i istorii meditsiny

Jiliaeva EP, Nechaev VS.
PMID: 26399072
Probl Sotsialnoi Gig Zdravookhranenniiai Istor Med. 2015 Mar-Apr;23(2):43-6.

The article analyses such tendency in modern foreign medical ethics as paying particular attention to relationship physician-society. The modern tendency to entrust physicians with main responsibility for expenses control and economical expenditure of health care resources is considered The...

Reactions of secondary propargylamines with heteroallenes for the synthesis of diverse heterocycles.

Chemical Society reviews

Peshkov VA, Pereshivko OP, Nechaev AA, Peshkov AA, Van der Eycken EV.
PMID: 29546891
Chem Soc Rev. 2018 Jun 05;47(11):3861-3898. doi: 10.1039/C7CS00065K.

This focused review aims to summarize recent developments in the processes involving additions of secondary propargylamines to various heteroallenes and subsequent transition metal-catalyzed or electrophile-mediated cyclizations. The utility of this convenient and tunable strategy spans from the carbon dioxide...

Interplay of Surface and Dirac Plasmons in Topological Insulators: The Case of Bi_{2}Se_{3}.

Physical review letters

Politano A, Silkin VM, Nechaev IA, Vitiello MS, Viti L, Aliev ZS, Babanly MB, Chiarello G, Echenique PM, Chulkov EV.
PMID: 26636863
Phys Rev Lett. 2015 Nov 20;115(21):216802. doi: 10.1103/PhysRevLett.115.216802. Epub 2015 Nov 18.

We have investigated plasmonic excitations at the surface of Bi_{2}Se_{3}(0001) via high-resolution electron energy loss spectroscopy. For low parallel momentum transfer q_{∥}, the loss spectrum shows a distinctive feature peaked at 104 meV. This mode varies weakly with q_{∥}....

Detailed Balance Limit of Efficiency of Broadband-Pumped Lasers.

Scientific reports

Nechayev S, Rotschild C.
PMID: 28904362
Sci Rep. 2017 Sep 13;7(1):11497. doi: 10.1038/s41598-017-11857-y.

Broadband light sources are a wide class of pumping schemes for lasers including LEDs, sunlight and flash lamps. Recently, efficient coupling of broadband light to high-quality micro-cavities has been demonstrated for on-chip applications and low-threshold solar-pumped lasers via cascade...

Effects of topological constraints on globular polymers.

Soft matter

Imakaev MV, Tchourine KM, Nechaev SK, Mirny LA.
PMID: 25472862
Soft Matter. 2015 Jan 28;11(4):665-71. doi: 10.1039/c4sm02099e. Epub 2014 Dec 04.

Topological constraints can affect both equilibrium and dynamic properties of polymer systems and can play a role in the organization of chromosomes. Despite many theoretical studies, the effects of topological constraints on the equilibrium state of a single compact...

Direct observation of many-body charge density oscillations in a two-dimensional electron gas.

Nature communications

Sessi P, Silkin VM, Nechaev IA, Bathon T, El-Kareh L, Chulkov EV, Echenique PM, Bode M.
PMID: 26498368
Nat Commun. 2015 Oct 26;6:8691. doi: 10.1038/ncomms9691.

Quantum interference is a striking manifestation of one of the basic concepts of quantum mechanics: the particle-wave duality. A spectacular visualization of this effect is the standing wave pattern produced by elastic scattering of surface electrons around defects, which...

Quantum spin Hall insulators in centrosymmetric thin films composed from topologically trivial BiTeI trilayers.

Scientific reports

Nechaev IA, Eremeev SV, Krasovskii EE, Echenique PM, Chulkov EV.
PMID: 28252656
Sci Rep. 2017 Mar 02;7:43666. doi: 10.1038/srep43666.

The quantum spin Hall insulators predicted ten years ago and now experimentally observed are instrumental for a break- through in nanoelectronics due to non-dissipative spin-polarized electron transport through their edges. For this transport to persist at normal conditions, the...

Intracavity laser polarization spectrometer for biomolecule traces.

Analytical and bioanalytical chemistry

Burakov VS, Lobazov AF, Nechaev SV, Raikov SN.
PMID: 15045414
Anal Bioanal Chem. 1996 Jun;355(3):364-6. doi: 10.1007/s0021663550364.

A polarization variant of an intracavity laser spectrometer based on the competition of beams in an argon ion laser, radiating a number of narrow lines in the 275 to 529 nm spectral range, is proposed and described for the...

Bethe Ansatz in the Bernoulli matching model of random sequence alignment.

Physical review. E, Statistical, nonlinear, and soft matter physics

Majumdar SN, Mallick K, Nechaev S.
PMID: 18351821
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jan;77(1):011110. doi: 10.1103/PhysRevE.77.011110. Epub 2008 Jan 11.

For the Bernoulli matching model of the sequence alignment problem we apply the Bethe Ansatz technique via an exact mapping to the five-vertex model on a square lattice. Considering the terracelike representation of the sequence alignment problem, we reproduce...

Statistics of ideal randomly branched polymers in a semi-space.

The European physical journal. E, Soft matter

Tamm MV, Nechaev SK, Erukhimovich IY.
PMID: 15912264
Eur Phys J E Soft Matter. 2005 Jun;17(2):209-19. doi: 10.1140/epje/i2005-10007-9. Epub 2005 May 24.

We investigate the statistical properties of a randomly branched 3-functional N-link polymer chain without excluded volume, whose one point is fixed at the distance d from the impenetrable surface in a 3-dimensional space. Exactly solving the Dyson-type equation for...

Analytical review on the hydrogen multilayer intercalation in carbonaceous nanostructures: relevance for development of super-adsorbents for fuel-cell-powered vehicles.

Journal of nanoscience and nanotechnology

Nechaev YS, Alexeeva OK, Ochsner A.
PMID: 19504947
J Nanosci Nanotechnol. 2009 Jun;9(6):3949-58. doi: 10.1166/jnn.2009.ns95.

The analytical consideration of some recent experimental and theoretical data on the hydrogen on-board storage problem shows the necessity and economical expediency of carrying out further basic studies and initiating a constructive discussion on the physical key-note aspects ("open...

Spatial and temporal features of superordinate semantic processing studied with fMRI and EEG.

Frontiers in human neuroscience

Costanzo ME, McArdle JJ, Swett B, Nechaev V, Kemeny S, Xu J, Braun AR.
PMID: 23847490
Front Hum Neurosci. 2013 Jul 01;7:293. doi: 10.3389/fnhum.2013.00293. eCollection 2013.

The relationships between the anatomical representation of semantic knowledge in the human brain and the timing of neurophysiological mechanisms involved in manipulating such information remain unclear. This is the case for superordinate semantic categorization-the extraction of general features shared...

Showing 1 to 12 of 108 entries