scholarly journals Determination of the distribution of conduction velocities in workers exposed to lead, zinc, and copper.

1986 ◽  
Vol 43 (5) ◽  
pp. 321-326 ◽  
Author(s):  
S Araki ◽  
K Yokoyama ◽  
K Murata ◽  
H Aono
Keyword(s):  
Conduction Velocities ◽  
Lead Zinc

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.

Chemical indicators of sediment chronology

1993 ◽  
Vol 44 (4) ◽  
pp. 635 ◽  
Author(s):  
GW Kilby ◽  
GE Batley
Keyword(s):  
Urban Areas ◽  
Sewage Treatment ◽  
Alternative Methods ◽  
Chemical Components ◽  
Sedimentation Rates ◽  
Antifouling Paints ◽  
Chemical Indicators ◽  
Laboratory Facilities ◽  
Lead Zinc

The determination of recent sedimentation rates has traditionally used radiochemical dating techniques but, because of limited laboratory facilities and the costs of these techniques, alternative methods are desirable. Information on sedimentation rates and sediment history can be obtained from anthropogenic chemical components whose presence in sediments, especially near urban areas, can be used as markers to assess their chronology. More than one marker, with a known date of introduction, should be used. In this study, organosilicons first used in the early 1950s and tributyltin used in marine antifouling paints from 1972 were examined in sediments from Lake Macquarie, NSW, to supplement the known input of heavy metals from the lead-zinc smelter that has been operating at the northern end of the lake since 1897. The most reliable data were obtained at sites where all three markers were present, and use of these data allowed independent determination of the year of initial operation of a sewage treatment works.

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