Khalil, W. A., A. El-Lakkani, A. S. Monem, and S. A. Ali.,
"High dose effect of ultraviolet radiation on the protein and chlorophylls contents of spinach leaves.",
Published in the First Egyptian-British Conference on Biophysics, Cairo University, Egypt, October 26-28 , 1987.
El-Lakkani, A., A. S. Monem, W. A. Khalil, and S. A. Ali,
"Photoreversal of ultraviolet effect in Eruca Sativa leaves.",
Published in the First Egyptian-British Conference on Biophysics, Cairo University, Egypt, October 26-28 , 1987.
Aboelela, M., G. C. Vansteenkiste, and E. J. H. Kerckhoffs,
"Extraction of Periodicity and its Impact on Modeling of Cyclic Data Physical Systems",
1987 UKSC Conference on Computer Simulation, (ed. Zobel, R.N.), Bangor, Wales, UK., 9-11 September, 1987.
Khayyal, M. T., S. Saleh, P. Schlieper, and H. Tawfik,
"Effect of praziquantel on the cardiotonic action of cardiac glycosides.",
Archives internationales de pharmacodynamie et de thérapie, vol. 286, issue 1, pp. 85-96, 1987 Mar.
AbstractThe effect of praziquantel on isolated left guinea-pig atria has been studied. Praziquantel caused a concentration-dependent increase in the force of contraction of the isolated left atria, an effect which may be due to an increase in Ca++ fluxes. Praziquantel antagonized the cardiotonic effect of cardiac glycosides on guinea-pig atria. This antagonism is neither due to an alteration of Ca++ concentration in the cell, nor to a direct action on Na+, K+-ATPase, nor to inhibition of the binding of cardiac glycosides to heart tissue. This interaction may involve an enhancement of K+ fluxes in cardiac cells under the influence of praziquantel.
Khayyal, M. T., S. Saleh, P. Schlieper, and H. Tawfik,
"Effect of praziquantel on the cardiotonic action of cardiac glycosides.",
Archives internationales de pharmacodynamie et de thérapie, vol. 286, issue 1, pp. 85-96, 1987 Mar.
AbstractThe effect of praziquantel on isolated left guinea-pig atria has been studied. Praziquantel caused a concentration-dependent increase in the force of contraction of the isolated left atria, an effect which may be due to an increase in Ca++ fluxes. Praziquantel antagonized the cardiotonic effect of cardiac glycosides on guinea-pig atria. This antagonism is neither due to an alteration of Ca++ concentration in the cell, nor to a direct action on Na+, K+-ATPase, nor to inhibition of the binding of cardiac glycosides to heart tissue. This interaction may involve an enhancement of K+ fluxes in cardiac cells under the influence of praziquantel.
Khayyal, M. T., S. Saleh, P. Schlieper, and H. Tawfik,
"Effect of praziquantel on the cardiotonic action of cardiac glycosides.",
Archives internationales de pharmacodynamie et de thérapie, vol. 286, issue 1, pp. 85-96, 1987 Mar.
AbstractThe effect of praziquantel on isolated left guinea-pig atria has been studied. Praziquantel caused a concentration-dependent increase in the force of contraction of the isolated left atria, an effect which may be due to an increase in Ca++ fluxes. Praziquantel antagonized the cardiotonic effect of cardiac glycosides on guinea-pig atria. This antagonism is neither due to an alteration of Ca++ concentration in the cell, nor to a direct action on Na+, K+-ATPase, nor to inhibition of the binding of cardiac glycosides to heart tissue. This interaction may involve an enhancement of K+ fluxes in cardiac cells under the influence of praziquantel.
Naoum, M. M., G. R. Saad, M. M. Abdel-Moteleb, H. G. Shinouda, and H. A. Rizk,
"Dielectric polarization and molecular interaction. Part I. Acetoacetanilide and benzoylacetanilide-triethylamine-benzene systems",
Canadian Journal of Chemistry, vol. 65, issue 12, pp. 2760 - 2763, 1987.
AbstractThe apparent molecular polarization at infinite dilution of acetoacetanilide, and benzoylacetanilide in five constant-ratio mixtures of triethylamine in benzene leads to the inference that the equilibrium constants of the association process between the anilide and the amine in benzene are 357 and 600, and that the dipole moments of the complexes formed are 4.43 and 5.25 D, respectively.
Fayez, M., and Z. Y. Daw,
"Effect of inoculation with different strains of Azospirillum brasilense on cotton (Gossipium barbadense)",
Biology and Fertility of Soils, vol. 4, issue 1-2, pp. 91 - 95, 1987.
AbstractThe response of the cotton plant to inoculation with six strains of Azospirillum brasilense was investigated under subtropical conditions in Egypt. Azospirilla populations and activities were increased as a result of root inoculation with liquid inoculum of Azospirillum sp. Highest C2H2 - reduction activities on roots were obtained with strains S631 and Sp Br 14 (means of 216.85 and 209.50 nmol C2H4g-1 root h-1 respectively) while strain M4 gave the lowest activity (mean of 100.8 nmol C2H4g-1 root h-1). Statistical analysis showed that Azospirillum strains 5631, Sp Br 14, E15 and SC22 significantly increased the plant dry weight and nitrogen uptake while inoculation with strains M4 and SE had no significant effect in that respect. © 1987 Springer-verlag.
Fayez, M., and R. R. Shahin,
"Effects of industrial liquid wastes on dinitrogen fixation and microflora of soils and waters",
Zeitschrift für Pflanzenernährung und Bodenkunde, vol. 150, issue 4, pp. 220 - 227, 1987.
AbstractPotential N2‐fixation was investigated in a number of samples representing soils and water courses under the effect of some industrial wastes in Helwan area of Egypt. Microbiological analysis of soil and water samples showed the general enrichment of fungi, actinomycetes and bacteria including N2‐fixers. Among asymbiotic N2‐fixers, azospirilla compared to azotobacters and clostridia were found to be present with rather higher densities in all samples tested. Generally, the microbial numbers increased by increasing the distance from the Industrial Complex at Helwan, which could be attributed to the high levels of salinity and total heavy metals near the factories. The results indicated that the industrial wastes near the factories exerted inhibitory effects on the acetylenereducing activity in soils, which seriously reduces their biological fertility. Such effects were decreased by getting away from the factories. Significantly negative correlations were recorded between densities of N2‐fixers or N2‐ase activity and salinity and total heavy metals content in both soil and water samples. Copyright © 1987 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
El‐Sherbini, T. M., A. A. Farrag, H. M. Mansour, and A. A. Rahman,
Electric Dipole Oscillator Strengths and Radiative Lifetimes in the Boron Isoelectronic Sequence,
, vol. 499, issue 6, pp. 412 - 418, 1987.
Abstractn/a
El‐Sherbini, T. M., H. M. Mansour, A. A. Farrag, and A. A. Rahman,
Hartree‐Fock Energies of the Doubly Excited States of the Boron Isoelectronic Sequence,
, vol. 499, issue 6, pp. 419 - 422, 1987.
Abstractn/a
Abdelrahman, E. M., A. I. Bayoumi, and H. M. El-Araby,
"A least-squares approach to depth determination from second derivative gravity anomalies due to two-dimensional faulted and folded structures with application to the Gulf of Suez region, Egypt",
Journal of African Earth Sciences, vol. 6, issue 6, pp. 857 - 860, 1987.
Abstractn/a
Ahmed, M. A., F. A. Radwan, and M. M. El-Desoky,
"Magnetic susceptibility of the compound (CH2)10(NH3)2FeCl4",
Journal of Magnetism and Magnetic Materials, vol. 67, issue 3, pp. 349 - 353, 1987.
AbstractThe magnetic susceptibility of the compound (CH2)10(NH3)2FeCl4 is measured in the temperature range from liquid nitrogen temperature up to room temperature. The effect of thermal and magnetic history on the data obtained is also discussed. It is shown that the compound is antiferromagnetic with a Néel temperature of 93 K but it appears that the antiferromagnetic intra-layer exchange interaction co-exists with a weak ferromagnetic interlayer interaction. © 1987.
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