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Showing 1 to 12 of 76 entries
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Multiscale Mathematical Modeling in Dental Tissue Engineering: Toward Computer-Aided Design of a Regenerative System Based on Hydroxyapatite Granules, Focussing on Early and Mid-Term Stiffness Recovery.

Frontiers in physiology

Scheiner S, Komlev VS, Gurin AN, Hellmich C.
PMID: 27708584
Front Physiol. 2016 Sep 21;7:383. doi: 10.3389/fphys.2016.00383. eCollection 2016.

We here explore for the very first time how an advanced multiscale mathematical modeling approach may support the design of a provenly successful tissue engineering concept for mandibular bone. The latter employs double-porous, potentially cracked, single millimeter-sized granules packed...

Experimental tests of a 263 GHz gyrotron for spectroscopic applications and diagnostics of various media.

The Review of scientific instruments

Glyavin MY, Chirkov AV, Denisov GG, Fokin AP, Kholoptsev VV, Kuftin AN, Luchinin AG, Golubyatnikov GY, Malygin VI, Morozkin MV, Manuilov VN, Proyavin MD, Sedov AS, Sokolov EV, Tai EM, Tsvetkov AI, Zapevalov VE.
PMID: 26026544
Rev Sci Instrum. 2015 May;86(5):054705. doi: 10.1063/1.4921322.

A 263 GHz continuous-wave (CW) gyrotron was developed at the IAP RAS for future applications as a microwave power source in Dynamic Nuclear Polarization / Nuclear magnetic resonance (DNP/NMR) spectrometers. A new experimental facility with a computerized control was...

Structure and magnetic properties of nitroxide molecular crystals by density functional calculations employing periodic boundary conditions.

Journal of the American Chemical Society

Improta R, Kudin KN, Scuseria GE, Barone V.
PMID: 11772068
J Am Chem Soc. 2002 Jan 09;124(1):113-20. doi: 10.1021/ja011704r.

The structure and magnetic properties of one-dimensional chains of representative nitroxides have been studied by a density functional model employing periodic boundary conditions. The optimized geometries are in better agreement with experiments than those obtained from optimizations of model...

Quantization of the dipole moment and of the end charges in push-pull polymers.

The Journal of chemical physics

Kudin KN, Car R, Resta R.
PMID: 18035903
J Chem Phys. 2007 Nov 21;127(19):194902. doi: 10.1063/1.2799514.

A theorem for end-charge quantization in quasi-one-dimensional stereoregular chains is formulated and proved. It is a direct analog of the well-known theorem for surface charges in physics. The theorem states the following: (1) Regardless of the end groups, in...

Longitudinal polarizability of long polymeric chains: quasi-one-dimensional electrostatics as the origin of slow convergence.

The Journal of chemical physics

Kudin KN, Car R, Resta R.
PMID: 15847502
J Chem Phys. 2005 Apr 01;122(13):134907. doi: 10.1063/1.1871934.

The longitudinal linear polarizability alpha(N) of a stereoregular oligomer of size N is proportional to N in the large-N limit, provided the system is nonconducting in that limit. It has long been known that the convergence of alpha(N)/N to...

Revisiting infinite lattice sums with the periodic fast multipole method.

The Journal of chemical physics

Kudin KN, Scuseria GE.
PMID: 15291598
J Chem Phys. 2004 Aug 15;121(7):2886-90. doi: 10.1063/1.1771634.

The evaluation of lattice sums as well as stress lattice sums encountered in the periodic fast multipole method is reinvestigated. Simple, accurate, and efficient recurrence expressions for such sums following the ideas of the renormalization method are derived. The...

Raman spectra of graphite oxide and functionalized graphene sheets.

Nano letters

Kudin KN, Ozbas B, Schniepp HC, Prud'homme RK, Aksay IA, Car R.
PMID: 18154315
Nano Lett. 2008 Jan;8(1):36-41. doi: 10.1021/nl071822y. Epub 2007 Dec 22.

We investigate Raman spectra of graphite oxide and functionalized graphene sheets with epoxy and hydroxyl groups and Stone-Wales and 5-8-5 defects by first-principles calculations to interpret our experimental results. Only the alternating pattern of single-double carbon bonds within the...

Fermi surface and quasiparticle dynamics of Na0.7CoO2 investigated by angle-resolved photoemission spectroscopy.

Physical review letters

Hasan MZ, Chuang YD, Qian D, Li YW, Kong Y, Kuprin A, Fedorov AV, Kimmerling R, Rotenberg E, Rossnagel K, Hussain Z, Koh H, Rogado NS, Foo ML, Cava RJ.
PMID: 15245114
Phys Rev Lett. 2004 Jun 18;92(24):246402. doi: 10.1103/PhysRevLett.92.246402. Epub 2004 Jun 18.

We present the first angle-resolved photoemission study of Na0.7CoO2, the host material of the superconducting NaxCoO2.nH(2)O series. Our results show a hole-type Fermi surface, a strongly renormalized quasiparticle band, a small Fermi velocity, and a large Hubbard U. The...

Exact solutions for the source-excited cylindrical electromagnetic waves in a nonlinear nondispersive medium.

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

Es'kin VA, Kudrin AV, Petrov EY.
PMID: 21797522
Phys Rev E Stat Nonlin Soft Matter Phys. 2011 Jun;83(6):067602. doi: 10.1103/PhysRevE.83.067602. Epub 2011 Jun 29.

The behavior of electromagnetic fields in nonlinear media has been a topical problem since the discovery of materials with a nonlinearity of electromagnetic properties. The problem of finding exact solutions for the source-excited nonlinear waves in curvilinear coordinates has...

The role of mitochondria in epilepsy: implications for neurodegenerative diseases.

Toxicology mechanisms and methods

Kunz WS, Bimpong-Buta NY, Kudin AP, Elger CE.
PMID: 20021117
Toxicol Mech Methods. 2004;14(1):19-23. doi: 10.1080/15376520490257374.

The epileptic seizures observed in a broad variety of diseases involving mitochondrial DNA (mtDNA) and central nervous system pathology strongly suggest the possible role of mitochondria in the pathomechanism of various forms of epilepsy. The mtDNA mutations in these...

Electromagnetic oscillations in a driven nonlinear resonator: a description of complex nonlinear dynamics.

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

Petrov EY, Kudrin AV.
PMID: 23004812
Phys Rev E Stat Nonlin Soft Matter Phys. 2012 May;85(5):055202. doi: 10.1103/PhysRevE.85.055202. Epub 2012 May 10.

Many intriguing properties of driven nonlinear resonators, including the appearance of chaos, are very important for understanding the universal features of nonlinear dynamical systems and can have great practical significance. We consider a cylindrical cavity resonator driven by an...

Morphological anomalies of endangered Korean relict long-horned beetle .

ZooKeys

Yi DA, Kuprin AV, Bae YJ.
PMID: 29391847
Zookeys. 2017 Nov 06;(714):53-60. doi: 10.3897/zookeys.714.21112. eCollection 2017.

This paper describes for the first time cases of exogenous morphological anomalies that occur during rearing of

Showing 1 to 12 of 76 entries