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Correlations of earthquake focal mechanisms [PDF]

Geophysical Journal International, 1992
SUMMARY We performed a statistical analysis of the Harvard catalogue of seismic moment tensor solutions. We investigated the distribution of hypocentres on focal spheres of earthquakes. The hypocentres are concentrated along fault planes; the hypocentre distribution does not significantly differ for earthquakes in different depth ranges.
Y Y Kagan, Kagan Y Y
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53BP1: function and mechanisms of focal recruitment

Biochemical Society Transactions, 2009
53BP1 (p53-binding protein 1) is classified as a mediator/adaptor of the DNA-damage response, and is recruited to nuclear structures termed foci following genotoxic insult. In the present paper, we review the functions of 53BP1 in DNA-damage checkpoint activation and DNA repair, and the mechanisms of its recruitment and activation following DNA damage.
FitzGerald, Jennifer E., Grenon, Muriel, Lowndes, Noel F.   +2 more
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Focal mechanism in the Apennines

Physics and Chemistry of the Earth, 1996
Abstract This paper compares different source mechanism models that fit first onset amplitudes for a set of seismic events that occurred in the Apennines, Italy. We selected earthquakes of magnitude greater than 1.0 that match the criteria of appropriate instrumental coverage of the epicentral area, low localisation errors and high signal-to-noise ...
R. Rosini, F. Di Luccio, S. Barba
openaire   +1 more source

Physiological Mechanisms of Focal Epileptogenesis

Epilepsia, 1985
Summary: The key elements in the development of epileptogenesis appear to be the capacity of membranes in some (pacemaker) neurons to develop intrinsic burst discharges, the presence of disinhibition, and the proper excitatory synaptic circuitry. It is likely that the relative role of each of these processes will differ at different sites in the ...
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The mechanics of focal chondral defects in the hip

Journal of Biomechanics, 2017
There is a mean incidence of osteoarthritis (OA) of the hip in 8% of the overall population. In the presence of focal chondral defects, defined as localized damage to the articular cartilage, there is an increased risk of symptomatic progression toward OA.
Brenden J, Klennert, Benjamin J, Ellis, Travis G, Maak, Ashley L, Kapron, Jeffrey A, Weiss   +4 more
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Mechanisms of focal ventricular tachycardia in humans

Heart Rhythm, 2009
In classifying ventricular arrhythmias, a fundamental distinction is made between focal and macroreentrant mechanisms. Focal arrhythmias demonstrate early activation at a particular site with centrifugal spread of the impulse from this site of origin. In contrast, macroreentrant rhythms involve contiguous but spatially distributed areas of activation ...
Steven M, Markowitz, Bruce B, Lerman
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Mechanisms of Focal Adhesion Kinase Regulation

Current Cancer Drug Targets, 2005
Focal adhesion kinase (FAK) is a tyrosine kinase whose phosphorylation state and activity is tightly linked to cell adhesion to the extracellular matrix through integrin receptors. FAK's regulation by adhesion places it in a key position to be able to influence cellular events that are either dependent on cell adhesion like cell proliferation and ...
Lee Ann, Cohen, Jun-Lin, Guan
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Reliability of focal mechanism determination

Studia Geophysica et Geodaetica, 1981
The fault plane solution determined by means of a computer algorithm, correlating the radiation pattern with the distribution of observations, was investigated from the point of view of its reliability. The maximum of the correlation function R corresponds to the optimum solution found by the computer.
Karel Klíma, Libuše Ruprechtová
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