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Showing 37 to 48 of 1433 entries
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Jamming transitions and avalanches in the game of Dots-and-Boxes.

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

Metzler R, Engel A.
PMID: 12188784
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Jun;65(6):066108. doi: 10.1103/PhysRevE.65.066108. Epub 2002 Jun 14.

We study the game of Dots-and-Boxes from a statistical point of view. The early game can be treated as a case of random sequential adsorption, with a jamming transition that marks the beginning of the end game. We derive...

Changing of disease patterns: disappearance of diseases: new diseases.

The Medical journal of Australia

ENGEL C.
PMID: 13308520
Med J Aust. 1956 Jan 21;43(3):90-7. doi: 10.5694/j.1326-5377.1956.tb49369.x.

No abstract available.

The unusually stable coiled-coil domain of COMP exhibits cold and heat denaturation in 4-6 M guanidinium chloride.

Biophysical chemistry

Guo Y, Kammerer RA, Engel J.
PMID: 10961505
Biophys Chem. 2000 Jul 15;85(2):179-86. doi: 10.1016/s0301-4622(00)00119-8.

A high thermal stability is observed for the five-stranded alpha-helical coiled-coil domain of cartilage oligomeric matrix protein COMP. It does not unfold in non-denaturing buffer between 0 and 100 degrees C and thermal denaturation is only achieved at high...

Inhibin A/B in HMG or recombinant FSH ovarian stimulation with cetrorelix medication.

Reproductive biomedicine online

Engel JB, Felberbaum RE, Reissmann T, Kose R, Diedrich K.
PMID: 12513871
Reprod Biomed Online. 2001;3(2):104-108. doi: 10.1016/s1472-6483(10)61976-1.

The inhibins are valuable factors in the assessment of the quality of an ovarian stimulation cycle. In spite of good clinical results with recombinant FSH and multiple dose LHRH- antagonist (Cetrotide((R))) administration, there remains a theoretical concern that in...

Chemical turbulence and standing waves in a surface reaction model: The influence of global coupling and wave instabilities.

Chaos (Woodbury, N.Y.)

Bar M, Hildebrand M, Eiswirth M, Falcke M, Engel H, Neufeld M.
PMID: 12780126
Chaos. 1994 Sep;4(3):499-508. doi: 10.1063/1.166028.

Among heterogeneously catalyzed chemical reactions, the CO oxidation on the Pt(110) surface under vacuum conditions offers probably the greatest wealth of spontaneous formation of spatial patterns. Spirals, fronts, and solitary pulses were detected at low surface temperatures (T

Thermal ratchet effects in ferrofluids.

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

Engel A, Reimann P.
PMID: 15600590
Phys Rev E Stat Nonlin Soft Matter Phys. 2004 Nov;70(5):051107. doi: 10.1103/PhysRevE.70.051107. Epub 2004 Nov 22.

Rotational Brownian motion of colloidal magnetic particles in ferrofluids under the influence of an oscillating external magnetic field is investigated. It is shown that for a suitable time dependence of the magnetic field, a noise-induced rotation of the ferromagnetic...

Subchronic intermittent nicotine treatment enhances ethanol-induced locomotor stimulation and dopamine turnover in mice.

Behavioural pharmacology

Johnson DH, Blomqvist O, Engel JA, Söderpalm B.
PMID: 11224328
Behav Pharmacol. 1995 Mar;6(2):203-207.

Most drugs of abuse enhance mesolimbic dopaminergic transmission and locomotor activity in laboratory animals and, when given repeatedly, further increase these measures, a phenomenon termed sensitization. Sensitization-related neuroadaptations have been proposed to be important in the development and maintenance...

Structural and functional evolution of the P2Y(12)-like receptor group.

Purinergic signalling

Schöneberg T, Hermsdorf T, Engemaier E, Engel K, Liebscher I, Thor D, Zierau K, Römpler H, Schulz A.
PMID: 18404440
Purinergic Signal. 2007 Sep;3(4):255-68. doi: 10.1007/s11302-007-9064-0. Epub 2007 Sep 06.

Metabotropic pyrimidine and purine nucleotide receptors (P2Y receptors) belong to the superfamily of G protein-coupled receptors (GPCR). They are distinguishable from adenosine receptors (P1) as they bind adenine and/or uracil nucleotide triphosphates or diphosphates depending on the subtype. Over...

Wave instability induced by nonlocal spatial coupling in a model of the light-sensitive Belousov-Zhabotinsky reaction.

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

Nicola EM, Bär M, Engel H.
PMID: 16906964
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Jun;73(6):066225. doi: 10.1103/PhysRevE.73.066225. Epub 2006 Jun 28.

We study spatiotemporal patterns resulting from instabilities induced by nonlocal spatial coupling in the Oregonator model of the light-sensitive Belousov-Zhabotinsky reaction. In this system, nonlocal coupling can be externally imposed by means of an optical feedback loop which links...

Creating bound states in excitable media by means of nonlocal coupling.

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

Bordyugov G, Engel H.
PMID: 16907175
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Jul;74(1):016205. doi: 10.1103/PhysRevE.74.016205. Epub 2006 Jul 17.

We consider pulses of excitation in reaction-diffusion systems subjected to nonlocal coupling. This coupling represents long-range connections between the elements of the medium; the connection strength decays exponentially with the distance. Without coupling, pulses interact only repulsively and bound...

A tightly coupled bis(zinc(II) phthalocyanine)-perylenediimide ensemble to yield long-lived radical ion pair states.

Organic letters

Jiménez AJ, Spänig F, Rodríguez-Morgade MS, Ohkubo K, Fukuzumi S, Guldi DM, Torres T.
PMID: 17542596
Org Lett. 2007 Jun 21;9(13):2481-4. doi: 10.1021/ol0707968. Epub 2007 Jun 02.

A conjugated donor-acceptor array composed of two phthalocyanines connected to the bay region of a perylenediimide is assembled by using palladium chemistry. Excitation of the phthalocyanine produces a nanosecond lived charge-separated state.

Anomalous dynamic arrest in a mixture of large and small particles.

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

Moreno AJ, Colmenero J.
PMID: 17025427
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Aug;74(2):021409. doi: 10.1103/PhysRevE.74.021409. Epub 2006 Aug 21.

We present molecular dynamics simulations of the slow dynamics of a mixture of large and small soft spheres with a large size disparity. The dynamics are investigated in a broad range of temperature and mixture composition. As a consequence...

Showing 37 to 48 of 1433 entries