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1. Structural repairs to fire-damaged Guastavino tile vaults at Grand Central Terminal’s Oyster Bar

Author

Robert Silman

Subjects
Conservation and restoration of prints, NE380, Architectural drawing and design, NA2695-2793
Abstract

The fireproof character of Guastavino vaults, one of the major characteristics of their structure, has been demonstrated on several occasions over the past hundred and twenty years. The firm of Robert Silman Associates has verified the versatility and solidity of these vaults in several restoration works. This article deals with the fire that broke out on 29th June 1997 in the Oyster Bar at Grand Central Station, which did not impair the structural integrity of the Guastavino vaults so that only cosmetic repairs to the lowest layer of tiles were required.

Published
2007
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2. First trimester maternal serum concentrations of fetal antigen 2 in normal pregnancies and those affected by trisomy 21

Author

J.M.M. van Lith, K. M. Price, A. Mantingh, J. G. Grudzinskas, Robert Silman, and Other departments

Subjects
Fetal Proteins, Genetic Markers, Down syndrome, medicine.medical_specialty, Amniotic fluid, collagen propeptide, Aneuploidy, fetal antigen 2, AMNIOTIC-FLUID, Collagen Type I, AMINOTERMINAL PROPEPTIDE, RADIOIMMUNOASSAY, Andrology, MARKERS, Pregnancy, Internal medicine, medicine, Humans, Mass Screening, FA-1, Fetus, business.industry, Rehabilitation, Obstetrics and Gynecology, Radioimmunoassay, medicine.disease, Peptide Fragments, Pregnancy Complications, trisomy 21, Pregnancy Trimester, First, PROCOLLAGEN TYPE-I, Endocrinology, Reproductive Medicine, Gestation, GROWTH, Biological Assay, Female, Down Syndrome, ENDOMETRIAL PROTEINS PP12, business, Trisomy, Procollagen
Abstract

Serum concentrations of fetal antigen 2 (FA-2), the amino-propeptide of the alpha1 chain of collagen type I, were measured in peripheral blood from women with normal (n = 234) and trisomy 21 affected (n = 14) pregnancies between 9 and 11 weeks gestation. Serum FA-2 concentrations were seen to be stable throughout this period, and though raised FA-2 concentrations were seen at the 10th week of gestation, a statistically significant difference between normal and trisomy 21 affected pregnancies was not found overall. Therefore it seems unlikely that FA-2 has a role in first trimester screening for trisomy 21, despite the fact that significantly higher FA-2 concentrations in trisomy 21 and significantly lower concentrations in trisomy 18 had been previously demonstrated in amniotic fluid in the second trimester.

Published
1998

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