Determination of the Distribution of Conduction Velocities in Human Nerve Trunks

1979 ◽  
Vol BME-26 (2) ◽  
pp. 76-81 ◽  
Author(s):  
Anthony T. Barker ◽  
Brian H. Brown ◽  
Ian L. Freeston
Keyword(s):  
Conduction Velocities ◽  
Human Nerve

LIMB-GIRDLE MUSCULAR DYSTROPHY: ITS LARGER SIGNIFICANCE

PEDIATRICS ◽  
1968 ◽  
Vol 41 (2) ◽  
pp. 382-384
Author(s):  
S. C.
Keyword(s):  
Peripheral Nerves ◽  
Neuromuscular Disorders ◽  
Serum Enzymes ◽  
Muscle Disease ◽  
Muscular Dystrophies ◽  
Muscular Weakness ◽  
Conduction Velocities ◽  
Clinical Awareness ◽  
Muscle Biopsies

The current literature reflects the interest of pediatricians, neurologists, and internists in the neuromuscular disorders of childhood.1-5 Clinical awareness and the availability and refinement of ancillary procedures, such as electromyography, measurement of nerve conduction velocities, determination of serum enzymes and muscle biopsies, have made it possible to differentiate many of these conditions and correctly localize the pathology of these lower motor neuron disorders to the anterior horn cells, the peripheral nerves, and/or the muscles.1 Primary muscle disease is the most frequent cause of progressive muscular weakness in children with neuromuscular disorders.2 The primary myopathies are either hereditary or acquired. The muscular dystrophies and the myotonic syndrome are representative of the genetic variety, while the acquired disorders are recognized clinically as polymyositis and dermatomyositis.

scholarly journals Determination of the distribution of nerve conduction velocities in chain saw operators.

1988 ◽  
Vol 45 (5) ◽  
pp. 341-344
Author(s):  
S Araki ◽  
K Yokoyama ◽  
H Aono ◽  
K Murata
Keyword(s):  
Nerve Conduction ◽  
Conduction Velocities

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

Distance to SN 1987A and the LMC

1999 ◽  
Vol 190 ◽  
pp. 549-554
Author(s):  
Nino Panagia
Keyword(s):  
Angular Size ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Light Curves ◽  
Distance Modulus ◽  
Absolute Size ◽  
Sn 1987A

Using the new reductions of the IUE light curves by Sonneborn et al. (1997) and an extensive set of HST images of SN 1987A we have repeated and improved Panagia et al. (1991) analysis to obtain a better determination of the distance to the supernova. In this way we have derived an absolute size of the ringRabs= (6.23 ± 0.08) x 1017cm and an angular sizeR″ = 808 ± 17 mas, which give a distance to the supernovad(SN1987A) = 51.4 ± 1.2 kpc and a distance modulusm–M(SN1987A) = 18.55 ± 0.05. Allowing for a displacement of SN 1987A position relative to the LMC center, the distance to the barycenter of the Large Magellanic Cloud is also estimated to bed(LMC) = 52.0±1.3 kpc, which corresponds to a distance modulus ofm–M(LMC) = 18.58±0.05.

International determination of the total motion of the pole

1961 ◽  
Vol 13 ◽  
pp. 29-41
Author(s):  
Wm. Markowitz
Keyword(s):  
Secular Motion ◽  
The Future

A symposium on the future of the International Latitude Service (I. L. S.) is to be held in Helsinki in July 1960. My report for the symposium consists of two parts. Part I, denoded (Mk I) was published [1] earlier in 1960 under the title “Latitude and Longitude, and the Secular Motion of the Pole”. Part II is the present paper, denoded (Mk II).

Time and Latitude in South Africa

1972 ◽  
Vol 1 ◽  
pp. 27-38
Author(s):  
J. Hers
Keyword(s):  
South Africa ◽  
Cape Town ◽  
Astronomical Observations ◽  
Royal Observatory ◽  
The Republic ◽  
Astronomical Determination ◽  
Limited Accuracy ◽  
Better Than

In South Africa the modern outlook towards time may be said to have started in 1948. Both the two major observatories, The Royal Observatory in Cape Town and the Union Observatory (now known as the Republic Observatory) in Johannesburg had, of course, been involved in the astronomical determination of time almost from their inception, and the Johannesburg Observatory has been responsible for the official time of South Africa since 1908. However the pendulum clocks then in use could not be relied on to provide an accuracy better than about 1/10 second, which was of the same order as that of the astronomical observations. It is doubtful if much use was made of even this limited accuracy outside the two observatories, and although there may – occasionally have been a demand for more accurate time, it was certainly not voiced.

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