منابع مشابه
PENDRED\'S SYNDROME REVISITED
Pendred's syndrome is defined as a triad of congenital perceptive hearing loss, goiter, and abnormal perchlorate test. Three brothers with Pendred's syndrome [P.S.] are reported. The oldest brother has hearing loss (he has been deaf and mute since childhood) and has a large goiter. A thyroid scan revealed euthyroid multinodular goiter and a perchlorate test was performed, and reported abno...
متن کاملUSHER\'S SYNDROME REVISITED
Usher's syndrome is a genetically inherited autosomal recessive disorder resulting in the double handicap of deafness and progressive blindness, known as retinitis pigmentosa. The disease is also associated with psychoses, mental retardation, and other major neurophysiological changes. It appears to be more common among Jewish individuals and consanguinous marriages. While it is rare in th...
متن کاملHigman ’ s Embedding Theorem . An Elementary Proof
In 1961 G. Higman proved a remarkable theorem establishing a deep connection between the logical notion of recursiveness and questions about finitely presented groups. The basic aim of the present paper is to provide the reader with a rigorous and detailed proof of Higman’s Theorem. All the necessary preliminary material, including elements of group theory and recursive functions theory, is sys...
متن کاملThe Routh-Hurwitz Stability Criterion, Revisited
In the mid-nineteenth century James C. Maxwell, and others, became interested in the stability of motion of dynamic systems. Maxwell’s interest in stability stemmed in part from his work with an automatic control system a speed governor he and his colleagues were using in laboratory measurements to establish the definition of the ohm. Maxwell was the first to publish a dynamic analysis of this ...
متن کاملusher's syndrome revisited
usher's syndrome is a genetically inherited autosomal recessive disorder resulting in the double handicap of deafness and progressive blindness, known as retinitis pigmentosa. the disease is also associated with psychoses, mental retardation, and other major neurophysiological changes. it appears to be more common among jewish individuals and consanguinous marriages. while it is rare in th...
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ژورنال
عنوان ژورنال: Michigan Mathematical Journal
سال: 2009
ISSN: 0026-2285
DOI: 10.1307/mmj/1242071686