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Your search keyword '"Rahman, S."' showing total 149 results
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149 results on '"Rahman, S."'

1. British India

Author

Rahman, S. A., Nair, P. Appu, and Moos, P. N.

Published
1945

3. The basal metabolism of young men at Hyderabad (Deccan) with a study of their physical characters

Author

Rahman, S. A.

Subjects
612.3
Abstract

Basal metabolism tests and the physical character studies have been carried out in 32 young men at Hyderabad (Deccan). The ages varied from 19 - 31 years, the average being 22 years. No difference was found in the pulse and the respiration rates as compared with the western standards. These subjects were found to have somewhat (1.2 cm.) shorter stem height and correspondingly longer legs compared to the measurements obtained on the Westerners. A pelidisi of about 92 indicates the normal state of nutrition in young Indians, the average pelidisi for 30 out of the 32 subjects being 92 -4. The blood pressure was found to be considerably lower compared to the western standards. The average systolic blood pressure in 30 out of the 32 subjects was 100.4 ± 11 mm., the average diastolic pressure 71.8 ± 5mm., and the average pulse pressure 28.6 ± 7.2. The basal metabolism was found to be 6.8 per cent below the Harris- Benedict and 8.7 per cent below the Aub-DuBois standards. The factors which may tend to bring about this low level of metabolism are discussed. The possibility of the humid climate being a factor in lowering metabolism is suggested. Eight of the subjects who were vegetarians showed the basal metabolism on an average about two per cent lower than that obtained for the whole mixed group. For height and age, the weight in this group of subjects was less than the American standards.

Published
1947

26. Discussion of 'Settlement of Spread Footings on Sand'

Author

W. G. Holtz, Arnoldo J. L. Bolognesi, Abdel Rahman S. Bazaraa, H. J. Gibbs, and Ralph B. Peck

Subjects
Overburden, Engineering, Chart, business.industry, Lateral earth pressure, Tangent modulus, General Engineering, Geotechnical engineering, Preconsolidation pressure, Overburden pressure, business, Terzaghi's principle, Penetration test
Abstract

WAYS TO MODIFY THE TERZAGHI AND PECK METHOD FOR ESTIMATING THE SETTLEMENT OF SPREAD FOOTINGS FOUNDED ON SANDS ARE EXAMINED. THE AUTHORS INCLUDE THE EVALUATION OF THE RELATIVE DENSITY OF SAND FOUNDATIONS BY THE STANDARD SPLIT-BARREL PENETRATION TEST UTILIZING THE EFFECT OF OVERBURDEN PRESSURES. THE WRITERS' PREFER TO REGARD THIS IN TERMS OF INTERPRETATION OF THE RELATIVE DENSITY OF SANDS UNDER VARIOUS OVERBURDEN PRESSURES FROM PENETRATION TEST DATA, RATHER THAN A CORRECTION AS EXPRESSED BY THE AUTHORS AND DISCUSSERS. EXPERIENCE ON BUREAU OF RECLAMATION PROJECTS DURING THE LAST 15 YEARS HAVE PROVIDED CONFIDENCE IN THE APPLICABILITY OF THE PROCEDURE. PENETRATION TEST RESULTS MUST BE LOOKED AT FROM THE STANDPOINT OF AVERAGE VALUES AND RANGE OF VALUES. THE WRITER FEELS THAT A CORRELATION WHICH IS CLOSE TO AVERAGE TRENDS OF PENETRATION RESISTANCE AND RELATIVE DENSITY IS MOST USEFUL. CHANGES OF OVERBURDEN PRESSURE WITH RESPECT TO DEPTH IS A NECESSARY CONSIDERATION. HOLTZ AND GIBBS CONCLUDE THAT A GENERAL CORRELATION SHOULD BE AN AVERAGE REPRESENTATION FOR A BROAD VARIETY OF USES. PECK AND BAZARAA DISCUSS THE PENETRATION TEST METHODS. THEY DISCUSS THE CORRECTION OF N VALUES FOR THE EFFECT OF OVERBURDEN PRESSURES USED BY THE AUTHORS. THEY CRITICIZE THE HOLTZ AND GIBBS CORRECTION AS BEING UNREALISTIC AND INTRODUCING AN INHERRENT INCONSISTENCY INTO THE PROCEDURES. A METHOD OF IMPROVING THE GIBBS AND HOLTZ CORRECTION IS INTRODUCED. THE WRITER SUGGESTS THAT THE N VALUES SHOULD BE CORRECTED FOR THE EFFECT OF OVERBURDEN PRESSURE, PREFERABLY BY BAZARAA'S MODIFICATION OF THE GIBBS AND HOLTZ PROCEDURES. THE CORRECTED N VALUES SHOULD THAN BE INSERTED INTO THE TERZAGHI-PECK CHART TO DETERMINE THE SETTLEMENT BY THE STANDARD SPLIT-BARREL PENETRATION TEST. BOLOGNESI DISCUSSES SETTLEMENTS PREDICTIONS FROM PLATE LOAD TESTS AND THE INFLUENCE OF THE WATER TABLE ON THE SETTLEMENT OF FOUNDA- TIONS. A FIGURE IS PRESENTED WHICH SHOWS ALL THE POSSIBILITIES AND LIMITATIONS OF THE PROPOSAL THAT, ON FIRST LOADING, THE TANGENT MODULUS OF DEFORMATION OF SANDS IS A FUNCTION OF THE STRESS CONDITIONS. THE ANALYSIS PRESENTED SHOWS THAT THE MOST IMPORTANT FACTOR TO BE TAKEN INTO CONSIDERATION WHILE EXTRAPOLATING SETTLEMENTS FROM A STANDARD SIZE PLATE TO THE SETTLEMENT OF A PROTOTYPE FOOTING IS THE PRECONSOLIDATION PRESSURE, OR PRECONSOLIDATION-LIKE EFFECTS. REFERENCES: SETTLEMENT OF SPREAD FOOTINGS ON SAND, DAVID J. D'APPOLONIA, ELIO D'APPOLONIA, AND RICHARD F. BRISSETTE, ASCE PROC. PAPER 5959, MAY 1968.

Published
1969

28. IN VITRO BIOSYNTHESIS OF PROTEINS IN HUMAN PLACENTAE FROM NORMAL AND TOXAEMIC PREGNANCIES

Author

Rahman, S. A., Hingorani, V., Malkani, P. K., and Laumas, K. R.

Abstract

The concentration of proteins, RNA and DNA, incorporation of carbon-14 amino acids into proteins and the labelling of RNA in 10 placentae each from normal and toxaemic pregnancies have been investigated. The protein content either on a wet tissue basis or on a dry tissue basis was lower in the toxaemic placenta. In this group of placentae, the concentration of RNA and DNA was also lower as compared with the normal. While there was no change in the RNA/Protein ratio in the two groups of placentae, the DNA/Protein ratio was significantly lower in toxaemic placentae. When the various subcellular fractions were compared, the concentration of protein was lower in the nuclear, mitochondrial, microsomal and pH 5 enzyme precipitate fractions of toxaemic placentae.The incorporation of carbon-14 amino acids into proteins and the labelling of RNA was lower in the various subcellular fractions of toxaemic placentae. The time course of the incorporation of carbon-14 amino acids into proteins and the labelling of RNA in cell-free system increased with time in both groups of placentae, however, these were lower in toxaemic placentae as compared with the normal at the various time intervals studied.From the data presented, it may be concluded that toxaemia exerts some deleterious effect on the biosynthesis of proteins in the placenta. It is suggested that damage to protein synthesis may be the cause of the altered biosynthetic and metabolic activities reported in the placentae during toxaemia.

Published
1973
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