Showing papers by "Government College published in 1991"

Abnormal haemoglobins, thalassaemia and G-6-PD enzyme deficiency in Rajasthan (western-India).

Abstract: Venous blood samples of 2922 apparently healthy individuals (both male and female) belonging to four scheduled tribes (408 Bhil, 340 Damor, 190 Garasia, and 186 Mina), five scheduled castes (108 Meghwal, 93 Labana, 86 Mochi, 76 Garg, and 58 Yadaw) and eleven general castes (215 Baniya, 156 Brahmin, 153 Muslim, 130 Patel, 128 Bohra-Muslim, 122 Suthar, 115 Patidar, 112 Rajput, 92 Bhoi, 92 Sompura, and 62 Panchal) of the Dungarpur district of Rajasthan state were investigated by standard techniques for evidence of erythrocyte genetic disorders, abnormal haemoglobins, thalassaemia syndromes, and G-6-PD enzyme deficiency (Gd). Abnormal haemoglobins were encountered in 122 (4.17%) subjects. Of these, 93 (3.18%) were Hb-AS, 14 (0.47%) Hb-SS, 12 (0.41%) Hb-AD, 2 (0.06%) Hb-AE, and 1 (0.03%) Hb-SC. A higher incidence of these mutant genes was found in scheduled tribes (6.85%) as compared to scheduled castes (3.08%) and general castes (2.32%). Beta-thalassaemia syndromes were encountered in 111 (3.79%) subjects; 96 (3.28%) beta-thalassaemia traits, 13 (0.44%) HbS-thalassaemia, and 2 (0.06%) HbD-thalassaemia. Gd was found in 329 (11.25%) subjects. Of these, 203 (18.06%) belonged to scheduled tribes, 39 (9.26%) to scheduled castes, and 87 (6.31%) to general castes. In our present communication, the incidence and interaction of these mutant genes in different ethnic groups of scheduled tribes (S.T.), scheduled castes (S.C.), and general castes (G.C.) are discussed. Furthermore, their distribution in various ethnic groups residing in different districts of Rajasthan state (Western-India) is also reviewed.

Quantitative structure-activity relationship studies of inhibitors of gastric (H+/K+)-ATPase.

Abstract: The (H+/K+)-ATPase enzyme inhibitory activity of omeprazole analogues (Figure 1) and 1-aryl-4-methyl-2,3-dihydropyrrolo[3,2-c]quinolines (Figure 2) was found to be significantly correlated with electronic (sigma) or pKa parameter that governs the basicity of the molecules. The former compounds are representative of irreversible blockers, and the latter of reversible blockers. Inclusion of hydrophobic (pi) and/or steric (Es) parameters sometimes led to improvement in the correlations, suggesting that these parameters may play a role in the formation of a cyclic intermediate. The derived significant correlation equations strongly support a mechanism of action, first proposed by Lindberg et al., involving such a cyclic intermediate.

Free energy, critical field and phase transition in rare-earth ternary superconductors

Abstract: A theoretical study of the free energy, low-temperature critical field and the order of phase transition at a lower transition temperature in rare-earth ternary superconductors ErRh4B4 and HoMo6S8 is presented using thef-d exchange model within a mean field theory. The results obtained are in satisfactory agreement with available experimental data.

Observations on Supersymmetry Breaking by Scherk-Schwarz Mechanism

Abstract: We consider the 4-dimensional N=1 supergravity theory that emerges by generalized dimensional reduction of the d=10, N=1 supergravity coupled to E8⊗E8 super-Yang-Mills theory a la Scherk-Schwarz. It is shown that the Scherk-Schwarz mechanism leads to a spontaneously broken N=1, D=4 locally supersymmetric theory with vanishing cosmological constant only if some non-perturbative mechanism like gaugino condensation takes place in the hidden E8 sector.

Foam Flow Behaviour in Porous Media in Relation to Enhanced Oil Recovery (EOR)

Abstract: Several foam properties in relation to enhanced oil recovery by foam flooding are presented in order to understand the mechanism of fluid/oil displacement in porous media. The fluid displacement experiments were conducted under different conditions of gas injections and types of the porous media. It was observed that the breakthrough time and fluid displacement efficiency were increased with increasing surfactant concentration. At low surfactant concentration, the effective gas mobility was high, and decreased with increasing concentration. Foams were effective in reducing the gas mobility in the porous media. For high fluid displacement, the effective gas mobility should be minimal. As the permeability increased, the flow of foam through porous media also increased. The breakthrough time and fluid displacement efficiency were correlated with slug size. Results indicated that the breakthrough time (BT) and fluid displacement efficiency (FDE) or fluid recovery (FR) were increased with increasing slug size. Upon increasing temperature, the surface tension and bubble size decreased which, increased the fluid displacement efficiency. The effective gas mobility in the presence of a surfactant solution decreased with increasing temperature. The effect of applied pressure on breakthrough time and fluid displacement showed a gradual decrease in fluid displacement efficiency/oil recovery with increased applied pressure in the absence of foam. An increase in the fluid/oil displacement efficiency was observed at low pressures and in the presence of foam. In the presence of foam, the breakthrough time and fluid recovery were increased. Fluid/oil displacement efficiency increased with increasing oil viscosity. More viscous oils were recovered in lower amount compared to the less viscous oils in the presence of foam.

Thermosolutal instability of hall plasma in porous medium

Abstract: The thermosolutal instability of a plasma in porous medium in the presence of a horizontal magnetic field is considered to include the effect of Hall current. The Hall current and stable solute gradient are found to have destabilizing and stabilizing effects, respectively, on the thermosolutal instability of the plasma in porous medium. The medium permeability has a destabilizing effect on the system as the parameter determining the Hall current is very small compared to unity. The overstable case is also studied wherein the sufficient conditions for the existence of overstability are obtained.

Surface Characterization of Polymer Substrates, Flexographic Printing Plates and Dried Ink Films Printed with Water-Based Ink Systems

Abstract: The wettability and adhesion of the coating and printing films on the polymer substrates depend on the surface properties of the formulation ingredients and polymer surface. In addition, the transfer of ink from flexographic printing plates to substrates depends on the surface properties of the printing plate, water-based ink and polymer substrate. Among several surface properties such as surface composition, surface roughness, surface tension/surface energies and surface defects, the surface energies: polar, nonpolar and total energies of the dried coating films, flexographic printing plates and polymer substrates were determined by measuring contact angles of water and methylene iodide. These results were used to understand the ink transfer from printing plates to substrates during flexographic printing process, and ink spreading, wetting as well as ink adhesion behavior of the coatings and inks on the polymer substrates. The data indicates that for good ink transfer and adhesion to occur, the surface energy of the water-based ink should be lower than that of the printing plates and substrates.

Gene and genotypic frequency and percent of bitter tasters of phenyl-thiocarbamide in a student community of different castes.

Abstract: Pages with reference to book, From 88 To 89 S.Z.H. Naqvi, S.R. Hussain ( Department of Zoology, Government College, Faisalabad. ) S. Mehdi ( Department of Plant Breeding and Genetics University of Agriculture, Faisalabad. ) F. Rizvi ( Government College for Women, Department Punjab Medical College, Faisalabad. ) S.N.H. Bokhari ( 213-Faisalabad. Anatomy, Department Punjab Medical College, Faisalabad. )