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Digitale Medien

Autosomal recessive polycystic kidney disease (1989)

Kaplan, Bernard S. ; Fay, J. ; Shah, Vanita ; [weitere]

Springer

Pediatric nephrology 3 (1989), S. 43-49

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ISSN: 1432-198X

Schlagwort(e): Polycystic kidneys ; Congenital hepatic fibrosis ; Hypertension ; Hyponatraemia

Quelle: Springer Online Journal Archives 1860-2000

Thema: Medizin

Notizen: Abstract The clinical features of 55 cases of autosomal recessive polycystic kidney disease (ARPCKD) have been reviewed. Each had evidence of ARPCKD. The outcomes of 87% were known; 24 had died. Twenty-four of 31 were seen between 1980 and 1986; 7 could not be traced. Forty-five percent presented under 1 month; 38% between 1 month and 1 year; and 9 cases over 1 year. Hyponatraemia occurred in 15 out of 19 aged less than 3 months; hypertension occurred in 65%; splenomegaly in 47% of those surviving more than 3 months. Portocaval shunts were done in 5 aged 2–12 years. Thirteen died of renal failure, 6 under 1 year, and 7 between 1 year and 13 years. Life-table survival rates calculated from birth revealed that 86% were alive at 3 months, 79% at 1 year, 51% at 10 years, and 46% at 15 years. Calculations based on patients who survived to 1 year of age showed that 82% were alive at 10 years and 79% at 15 years. These results reveal an improved prognosis for a condition once assumed to be fatal.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00859625

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Digitale Medien

Factors which affect the glass transition and damping capability of polymers (1991)

Sperling, L. H. ; Fay, J. J.

New York, NY : Wiley-Blackwell

Polymers for Advanced Technologies 2 (1991), S. 49-56

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ISSN: 1042-7147

Schlagwort(e): Damping ; Glass transition ; IPNs ; Loss modulus ; Morphology ; Chemistry ; Polymer and Materials Science

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie , Maschinenbau

Notizen: The shape of the glass transition plays a critical role in the engineering performance of polymers in sound and vibration damping, as well as other applications. The transition may be affected by fillers, plasticizers, blending, IPN formation, etc. A collection of data, both original and literature, is presented which illustrates how the phenomenon works. Emphasis is placed on the role of the area under the linear loss modulus-temperature curve, which may be evaluated in a fashion similar to other spectroscopic techniques. In addition, the loss area can be significantly affected by morphological factors.

Zusätzliches Material: 12 Ill.