Erosion-Oxidation Response of Boiler Grade Steels: A Mathematical Investigation (2008)
S. K. Das, Shubha Hegde, P. K. Dey, S. P. Mehrotra
A ductile erosion model embodying the mechanisms of erosion involving cutting wear and repeated plastic deformation has been developed to predict erosion rates of boiler grade steels. The issue of...
Fish community structure and water chemistry of two tropical rivers of West Bengal, an eastern province of India, were studied for 2 annual cycles (January 2003-December2004) and a higher degree of...
Modeling of Coupled Roll and Yaw Damping of a Floating Body in Waves (2007)
A mathematical model is described to investigate the damping moment of weakly nonlinear roll and yaw motions of a floating body in time domain under the action of sinusoidal waves. The mathematical...
Das, S. K., Jawaharlal, S. Puri, Horbach, J., Binder, Kurt
We use molecular dynamics (MD) to simulate an unstable homogeneous mixture of binary fluids (AB), confined in a slit pore of width $D$. The pore walls are assumed to be flat and structureless, and...
Limnological studies in two tropical Indian aquatic habitats showed that macroinvertebrate communities have greater diversity than other biotic communities present there. Sediment redox potential is...
Utilization and flow of energy in tropical ecosystem: A test case for two Ox-bow lakes (2006)
To estimate the rate of organic production, two solar powered tropical natural aquatic systems (Ox-bow lakes) have been studied for 24 months. The study of utilization of energy in those two tropical...
Ray, A., Das, P., Saha, S. K., Das, S. K., Das, J. J., Madhavan, N., ...
The half-life of 7Be implanted in a C60 pellet and gold foil has been measured to be about the same within about 0.2%. Using a radiochemical technique, we also measured that the probability of...
The Influence of Chemical Short Range Order on Atomic Diffusion in Al-Ni Melts (2005)
Das, S. K., Horbach, J., Koza, M. M., Chatoth, S. Mavila, Meyer, A.
We use inelastic neutron scattering and molecular dynamics (MD) simulation to investigate the chemical short range order (CSRO), visible through prepeaks in the structure factors, and its relation to...
Substituent effects on the genotoxicity of 4-nitrostilbene derivatives (1994)
Hooberman, Barry H., Brezzell, M. D., Das, S. K., You, Zhengqing, Sinsheimer, Joseph E.
4-Nitrostilbene and twelve of its derivatives (eleven E-stilbenes and two Z-stilbenes) were examined for possible quantitative structure-activity relationships of their in vitro and in vivo...
You, Zhengqing, Brezzell, M. D., Das, S. K., Hooberman, Barry H., Sinsheimer, Joseph E.
4-Amino-4'-substituted biphenyls and 4-aminostilbenes substituted in the 3' or 4' position were studied for their in vitro and in vivo genotoxicity. The in vitro mutagenicity of the biphenyls with...
Das, L., Das, S. K., Hooberman, Barry H., Chu, Ernest H. Y., Sinsheimer, Joseph E.
Mouse lymphocytes were exposed in vitro for 2 h or in vivo for 24 h to benzidine and related aromatic amines to test for chromosome aberrations (CA) and mitotic indices. Uninduced mouse S9 was used...
ortho-Substituent effects on the in vitro and in vivo genotoxicity of benzidine derivatives (1993)
You, Zhengqing, Brezzell, M. D., Das, S. K., Espadas-Torre, M. C., Hooberman, Barry H., Sinsheimer, Joseph E.
Benzidine and its 3,3'-diamino, 3,3'-dimethyl, 3,3'-dimethoxy, 3,3'-difluoro, 3,3'-dichloro, 3,3'-dibromo, 3,3'-dicarbomethoxy and 3,3'-dinitro derivatives together with 2-nitrobenzidine and...
Das, L., Das, S. K., Chu, Ernest H. Y., Sinsheimer, Joseph E.
Mouse lymphocytes in vivo or in vitro were exposed for 24 h to 4 aliphatic epoxides, glycidyl 1-naphthyl ether, glycidyl 4-nitrophenyl ether, 1-naphthylpropylene oxide and trichloropropylene oxide...
The genotoxicity of enantiomeric aliphatic epoxides (1993)
Sinsheimer, Joseph E., Chen, R., Das, S. K., Hooberman, Barry H., Osorio, S., You, Zhengqing
The (R)- and (S)-optical isomers of 9 epoxides, benzyloxymethyloxirane, epichlorohydrin, glycidol, glycidyl 3-nitrobenzenesulfonate, glycidyl 4-nitrobenzoate, glycidyl tosylate, styrene oxide,...
Sinsheimer, Joseph E., Hooberman, Barry H., Das, S. K., Brezzell, M. D., You, Zhengqing
Benzidine and 12 related aromatic amines have been studied for the effects of substituent groups and [pi] orbital conjugation on their genotoxicity as measured by their mutagenicity in vitro with...
Timing of BCG vaccination in infants (1980)
Das, S.K., Gautum, K.D., Mehrotra, M.L., Rajan, R.D., Sharma, J.P.
A study on timing of BCG Vaccination in l000 infants born at Lady Lyall and Dufferin Hospital, Agra was undertaken to find out suitable time for BCG Vaccination in infants. The infants were randomly...
A calcia doped zirconia solid oxide electrolyte galvanic cell was investigated in the temperature range of 700-950[deg]C to directly and more accurately measure the standard Gibbs free energy change...
A precise thermodynamic measurement of the equilibrium: Cgraphite = Cglassy carbon employing a solid oxide electrolyte in the temperature range 650[deg]-1150[deg]C was carried out to gain structural...
Thermodynamics of the solid-gas phase interactions in the carbon-oxygen-hydrogen system (1975)
Peer Reviewed
Simultaneous primary small-pox and BCG vaccination in children 0-2 years (1968)
Mehrotra, M.L., Pande, D.C., Gautam, K.D., Das, S.K.
Simultaneous smallpox and BCG vaccination given to infants of 0-2 years of age have not produced any untoward side effects of reactions. Heterologous antigens of the two vaccines do not appear to...
Das, S. K., Taylor, Julia A., Korach, Kenneth S., Paria, B. C., Dey, S. K., Lubahn, Dennis B.
Estrogens are thought to regulate female reproductive functions by altering gene transcription in target organs primarily via the nuclear estrogen receptor-α (ER-α). By using ER-α “knock-out”...
The preimplantation mouse embryo is a target for cannabinoid ligand-receptor signaling.
Paria, B C, Das, S K, Dey, S K
Using a reverse transcription-coupled PCR, we demonstrated that both brain and spleen type cannabinoid receptor (CB1-R and CB2-R, respectively) mRNAs are expressed in the preimplantation mouse...
Cannabinoid ligand-receptor signaling in the mouse uterus.
Das, S K, Paria, B C, Chakraborty, I, Dey, S K
Using RNA (Northern) blot hybridization and reverse transcription-PCR, we demonstrate that the brain-type cannabinoid receptor (CB1-R) mRNA, but not the spleen-type cannabinoid receptor (CB2-R) mRNA,...
A vaccine that prevents pregnancy in women.
Talwar, G P, Singh, O, Pal, R, Chatterjee, N, Sahai, P, Dhall, K, ...
We report here results of clinical trials on a birth control vaccine, consisting of a heterospecies dimer of the beta subunit of human chorionic gonadotropin (hCG) associated noncovalently with the...
Paria, B C, Das, S K, Andrews, G K, Dey, S K
The delayed implantation model was used to study epidermal growth factor receptor(s) (EGF-R) in the mouse blastocyst. Delayed implantation and blastocyst dormancy were induced by ovariectomy on day 4...
Transposon insertion mutagenesis was used to isolate mutants of Bosea thiooxidans which are impaired in thiosulfate oxidation. Suicide plasmid pSUP5011 was used to introduce the transposon Tn5 into...
PYRITHIAMINE ADAPTATION OF STAPHYLOCOCCUS AUREUS II. : Tricarboxylic Acid Cycle and Related Enzymes
Das, S. K. (Calcutta University, Calcutta, India), and G. C. Chatterjee. Pyrithiamine adaptation of Staphylococcus aureus. II. Tricarboxylic acid cycle and related enzymes. J. Bacteriol....
PYRITHIAMINE ADAPTATION OF STAPHYLOCOCCUS AUREUS I. : Adaptation and Carbohydrate Utilization
Das, S. K. (University of Calcutta, Calcutta, India) and G. C. Chatterjee. Pyrithiamine adaptation of Staphylococcus aureus. I. Adaptation and carbohydrate utilization. J. Bacteriol. 83:1251–1259....
T5-induced DNA polymerase has an associated 3' to 5' exonuclease activity. Both single-stranded and duplex DNA are hydrolyzed by this enzyme in a quasi-processive manner. This is indicated by the...
Exonuclease associated with bacteriophage T5-Induced DNA polymerase.
T-5-induced DNA polymerase has been shown to possess a 3' leads to 5'-exonucleolytic activity. The exonuclease acts on both native and denatured DNA, but the apparent rate of degradation of denatured...
Das, S K, White, A C, Fanburg, B L
Early passaged bovine pulmonary artery endothelial cells exposed to 0.1-2.0 ng/ml transforming growth factor-beta 1 (TGF-beta 1) showed concentration-dependent growth inhibition, as assessed by...
Production and physiological actions of anandamide in the vasculature of the rat kidney.
Deutsch, D G, Goligorsky, M S, Schmid, P C, Krebsbach, R J, Schmid, H H, Das, S K, ...
The endogenous cannabinoid receptor agonist anandamide is present in central and peripheral tissues. As the kidney contains both the amidase that degrades anandamide and transcripts for anandamide...
Selective action of mycobacillin on the uptake of releasable cell materials by Aspergillus niger.
Das, S K, Basu, S, Majumdar, S, Bose, S K
The uptake of normally releasable (i.e. releasable in the absence of the antibiotic) cell constituents (namely lysine, proline, ATP, Pi, Na+, K+ and Ca2+) by sensitive cells of Aspergillus niger that...
Inhibition patterns of a model complex mimicking the reductive half-reaction of sulphite oxidase.
Chaudhury, P K, Das, S K, Sarkar, S
Different inhibition types of the saturation kinetics involving a synthesized model complex, [Bu4N]3[MoVIO2(mnt)2] (E) (where mnt2- = 1,2-dicyanoethylenedithiolate), and HSO3- as the substrate (S) by...
Two-surgeon approach to thoracic outlet syndrome: long-term outcome.
Sharan, D, Moulton, A, Greatrex, G H, Das, S K, Whiteley, A M, Srivastava, V M
An orthopaedic surgeon and a vascular surgeon jointly conducted 30 operations for thoracic outlet syndrome in 27 patients, having done the preoperative assessments in conjunction with a neurologist....
A genetical model for vitiligo.
Majumder, P P, Das, S K, Li, C C
A genetical model is found to provide a good fit to family data on vitiligo. The model postulates that recessive alleles at a set of four unlinked diallelic loci are involved in the causation of the...
Das, S K, Stein, L D, Thebert, P J, Reynolds, R T, Cassidy, J T
Leucocyte migration inhibition in patients with ischaemic heart disease was evaluated as an assay for progressive myocardial damage. Abnormal results were observed in 50% of patients with ischaemic...
Fioretti, P, Brower, R W, Simoons, M L, Das, S K, Bos, R J, Wijns, W, ...
The relative merits of resting ejection fraction measured by radionuclide angiography and predischarge exercise stress testing were compared for predicting prognosis in hospital survivors of...
Henein, M. Y., Das, S. K., O'Sullivan, C., Kakkar, V. V., Gillbe, C. E., Gibson, D. G.
OBJECTIVE: To assess the effect of acute alterations in afterload by aortoiliac clamping, during peripheral vascular surgery, on left ventricular function. DESIGN: Prospective examination of the left...
Kelly, S. S., Ferry, C. B., Bamforth, J. P., Das, S. K.
1. Adult male albino mice were injected subcutaneously with an organophosphorous anticholinesterase to initiate excessive variability in the latency of indirectly elicited muscle action potentials...
OBJECTIVE: To compare the maximum energy cost of running (MECR) estimated from the speed of a mile run and the maximum oxygen consumption (VO2max) with a field step test. METHODS: MECR was defined as...