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An acetylsalicylic acid-sensitive aggregation phenomenon in Dipodascopsis uninucleata
Antonie van Leeuwenhoek, 1999Aggregation of ascospores has been discovered in the yeast Dipodascopsis uninucleata. When this yeast is cultivated to reach the sexual reproductive stage, small ascospores are individually released from the tip of a sac-like ascus which then aggregate in orderly clusters.
J L, Kock +6 more
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Model calculations for the phenomenon of nonlinear trapping in molecular aggregates
Physical Review B, 1992We present model calculations to describe the phenomenon of nonlinear trapping in molecular aggregates such as can occur during excitation transfer from an antenna to the reaction center in a photosynthetic unit. Our calculations are analytical and proceed from the discrete nonlinear Schr\"odinger equation introduced recently as the appropriate ...
, Kenkre, , Kus
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Investigation of the aggregation phenomenon of polyaniline in dilute solutions
Macromolecular Chemistry and Physics, 1995AbstractAggregation of polyaniline chains in dilute solutions was observed in N‐methyl‐2‐pyrrolidone by light scattering, gel permeation chromatography, and viscosity measurements. The aggregation resulted in a negative second virial coefficient in light scattering measurements and concave reduced viscosity curves.
Yun‐Hsin Liao +2 more
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Thermodynamics of the aggregation phenomenon in associating polymer solutions
Macromolecules, 1990The effect of temperature on the extent of aggregation, in dilute solution, of sodium sulfonated polystyrene ionomers in xylene has been determined by using small-angle neutron scattering (SANS). The data are described by using the open association model in which it is assumed that an equilibrium is eventually formed between single chains and ...
A. M. Pedley +3 more
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Diffusion-Limited Aggregation, a Kinetic Critical Phenomenon
Physical Review Letters, 1981A model for random aggregates is studied by computer simulation. The model is applicable to a metal-particle aggregation process whose correlations have been measured previously. Density correlations within the model aggregates fall off with distance with a fractional power law, like those of the metal aggregates.
T. A. Witten, L. M. Sander
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Immobilization of a BINOLate—Titanium Catalyst by Use of Aggregation Phenomenon.
ChemInform, 2006AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Toshiro Harada, Masashi Nakatsugawa
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Biology of the Oestroidea — The Phenomenon of Aggregation
1977Both Cuticolae and Cavicolae depend, during the larval stage, entirely upon their hosts, and are dispersed by the mammals as they move around. Consequently, when dropping to the ground to pupate, the mature larvae of one population will be scattered over a more or less large area.
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Cell response kinetics: The phenomenon of supercooperativity in aggregation of human platelets
Thrombosis Research, 1992Concentration-response relationships of human platelet aggregation rates were analyzed for a variety of agonists and inhibitors. Their approximation by the Hill equation showed that the values of the Hill coefficient (h) were agonist-dependent and increased as follows: hADP = hL-EPINEPHRINE = hPAF = hPGH2 = hU46619 less than hPMA less than hA23187 less
P V, Vrzheshch +3 more
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Aggregation phenomenon in an IgG multiple myeloma resulting in the hyperviscosity syndrome
The American Journal of Medicine, 1971Abstract A hyperviscosity syndrome was present in a patient with an IgG multiple myeloma. Immunologic and analytic ultracentrifuge studies demonstrated aggregation of (7S) IgG myeloma proteins, resulting in large, asymmetric polymers in vivo producing the increased serum viscosity. An unusual gel phenomenon was demonstrated. Possible mechanisms in the
G W, Benninger, S I, Kreps
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Exploring the phenomenon of patent aggregating companies
2013As patent aggregating companies have emerged as a recent empirical phenomenon, the knowledge of their activities and strategies is limited. These companies are still a black box; therefore, their utilization by producing companies is difficult.
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