Results 201 to 210 of about 80,524 (246)
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The origin of geomagnetic jerks
Nature, 2002Geomagnetic jerks, which in the second half of the twentieth century occurred in 1969 (refs 1, 2), 1978 (refs 3, 4), 1991 (ref. 5) and 1999 (ref. 6), are abrupt changes in the second time-derivative (secular acceleration) of the Earth's magnetic field.
Jeremy, Bloxham +2 more
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Ergot, the “Jerks,” and Revivals
Clinical Neuropharmacology, 1984Epidemics of epilepsy, a form of mass hysteria, were known in Eastern and Western cultures in the 17th and 18th centuries. A unique situation in the United States during the 19th centurey was the frontier religious movement, the setting in which the "jerks" occurred.
J M, Massey, E W, Massey
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THE ELDERLY AND THEIR ANKLE JERKS
The Lancet, 1984The ankle jerks of 200 consecutive patients admitted to a geriatric department were assessed on the second or third hospital days by two independent observers. The test consisted of a "plantar" rather than Achilles tendon strike with a standard patellar hammer. 188 patients had ankle jerks.
M, Impallomeni +4 more
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Annals of Neurology, 1983
AbstractA 39‐year‐old woman with a familial trait for myoclonic jerks of the neck presented with spontaneous 5‐ to 40‐degree single jerks of the eyes, usually upward, each producing a brief interruption in fixation. Eye movement recordings showed the myoclonic ocular jerks to be saccades with variable intersaccadic intervals.
J B, Selhorst, A L, Ochs, R G, Selbst
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AbstractA 39‐year‐old woman with a familial trait for myoclonic jerks of the neck presented with spontaneous 5‐ to 40‐degree single jerks of the eyes, usually upward, each producing a brief interruption in fixation. Eye movement recordings showed the myoclonic ocular jerks to be saccades with variable intersaccadic intervals.
J B, Selhorst, A L, Ochs, R G, Selbst
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The Jerk Dynamics of Chua's Circuit
International Journal of Bifurcation and Chaos, 2014In this paper, the dynamics of Chua's circuit in jerk form is presented. It is proved that two forms of Chua's circuit in jerk dynamics can be derived. The electronic circuit of the simpler dynamics has been implemented. The link between Chua's circuit and the search for simple jerk circuits has been established, therefore, proposing complex dynamics (
BUSCARINO, Arturo +2 more
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2016
Abstract Involuntary movements are described using the following characteristics: rhythm, regularity, displacement by movement, generalized or in the same muscle group, presence or absence with relaxation, and whether the movement is fast, slow, flowing, or resembling spasm.
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Abstract Involuntary movements are described using the following characteristics: rhythm, regularity, displacement by movement, generalized or in the same muscle group, presence or absence with relaxation, and whether the movement is fast, slow, flowing, or resembling spasm.
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Archives of Neurology & Psychiatry, 1931
The literature contains numerous accounts of the effects on the thoracic and abdominal viscera of stimulation of the exteroceptors. There are, however, few accounts of the effects on the neuromuscular apparatus of stimulation of the interoceptors. The early meager literature is referred to in a study of skeletal reflexes induced by stimulation of the ...
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The literature contains numerous accounts of the effects on the thoracic and abdominal viscera of stimulation of the exteroceptors. There are, however, few accounts of the effects on the neuromuscular apparatus of stimulation of the interoceptors. The early meager literature is referred to in a study of skeletal reflexes induced by stimulation of the ...
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Optometry and Vision Science, 1979
Abstract Eye movements in a subject with jerk nystagmus were recorded during a variety of tracking tasks using a photoelectric method. New findings included ability to reduce nystagmus amplitude and frequency when instructed “to hold the eye steady” rather than “to fixate” in the presence of a visible target, changes in nystagmus ...
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Abstract Eye movements in a subject with jerk nystagmus were recorded during a variety of tracking tasks using a photoelectric method. New findings included ability to reduce nystagmus amplitude and frequency when instructed “to hold the eye steady” rather than “to fixate” in the presence of a visible target, changes in nystagmus ...
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