Ismail Asd88 | Umm Al-Qura University, Makkah, Saudi Arabia (original) (raw)

Papers by Ismail Asd88

Research paper thumbnail of Heteroaryloxymethyl ketones as interleukin-1βconverting enzyme inhibitors

Research paper thumbnail of Peptide analogs as irreversible interleukin-1β protease inhibitors

Research paper thumbnail of Biochemical Changes in Fruit of an Early and a Late Date Palm Cultivar During Development and Ripening

Http Dx Doi Org 10 1080 15538362 2011 578520, Apr 1, 2011

Research paper thumbnail of Hydrogen spillover phenomenon: Enhanced reversible hydrogen adsorption/desorption at Ta2O5-coated Pt electrode in acidic media

Electrochimica Acta, 2010

Research paper thumbnail of Earthquake activity in the Aswan region, Egypt

Pure and Applied Geophysics, Sep 30, 1995

The November 14, 1981 Aswan earthquake ( M L= 5.7), which was related to the impoundment of Lake ... more The November 14, 1981 Aswan earthquake ( M L= 5.7), which was related to the impoundment of Lake Aswan, was followed by an extended sequence of earthquakes, and is investigated in this study. Earthquake data from June 1982 to late 1991, collected from the Aswan network, are classified into two sets on the basis of focal depth (i.e., shallow, or deeper than 10 km). It is determined that (a) shallow seismicity is characterized by swarm activity, whereas deep seismicity is characterized by a foreshock-main shock-aftershock sequence; (b) the b value is equal to 0.77 and 0.99 for the shallow and deep sequences, respectively; and (c) observations clearly indicate that the temporal variations of shallow seismic activity were associated with a high rate of water-level fluctuation in Lake Aswan; a correlation with the deeper earthquake sequence, however, is not evident. These features, as well as the tomographic characteristics of the Aswan region ( Awad and Mizoue, this issue), imply that the Aswan seismic activity must be regarded as consisting of two distinct earthquake groups. We also relocated the largest 500 earthquakes to determine their seismotectonic characteristics. The results reveal that the epicenters are well distributed along four fault segments, which constitute a conjugate pattern in the region. Moreover, fault-plane solutions are determined for several earthquakes selected from each segment, which, along with the 14 November 1981 main shock, demonstrate a prominent E-W compressional stress.

Research paper thumbnail of Ozone electrogeneration at a high current efficiency using a tantalum oxide–platinum composite electrode

Electrochemistry Communications, Aug 1, 2006

This work examines the ozone (O3) electrogeneration at a tantalum oxide (TaOx) and Pt composite-c... more This work examines the ozone (O3) electrogeneration at a tantalum oxide (TaOx) and Pt composite-coated Ti (Pt–TaOx/Ti) electrode in comparison with a smooth Pt electrode. Pt–TaOx/Ti electrode was prepared by thermal decomposition procedure. O3 has been ...

Research paper thumbnail of Chemical and Isotopic Studies for the Evaluation of Groundwater, East of Sadat City – Egypt

Http Dx Doi Org 10 1080 10256019708234050, Sep 24, 2006

Seepage of irrigation and drainage waters

Research paper thumbnail of Extracellular synthesis of silver nanoparticles by marine derived fungus Aspergillus terreus MALEX

Nanomedicine: nanotechnology, biology, and medicine

Research paper thumbnail of Acrylamide toxicity in isolated rat hepatocytes

Toxicology in Vitro, Dec 1, 1998

Research paper thumbnail of Effect of exogenous application of anti-stress substances and elemental sulfur on growth and stress tolerance of tissue culture derived plantlets of date palm (Phoenix dactylifera L.) c.v. ‘Khalas’ during acclimatization

Page 46. Journal of Applied Horticulture, 8 (2): 129-134, July-December, 2006 Effect of exogenous... more Page 46. Journal of Applied Horticulture, 8 (2): 129-134, July-December, 2006 Effect of exogenous application of anti-stress substances and elemental sulphur on growth and stress tolerance of tissue culture derived plantlets ...

Research paper thumbnail of Electroanalysis of Peracetic Acid in the Presence of a Large Excess of Hydrogen Peroxide

Analytical Letters, 2001

The simultaneous electroanalysis of peracetic acid (PAA) and H2O2 in the presence of a large exce... more The simultaneous electroanalysis of peracetic acid (PAA) and H2O2 in the presence of a large excess of H2O2, up to hundred times the concentrations of PAA, has been presented for the first time. Square wave voltammetry using a gold electrode was successfully ...

Research paper thumbnail of Formation of flavonoids and chlorogenic acid in apples as effected by crop load

Research paper thumbnail of Photodimerization of cyclohexene and methane by decatungstate anions: Molecular orbital theory

J Am Chem Soc, 1990

Page 1. J. Am. Chem. SOC. 1990, 112, 1603-1606 1603 94-0; 24 (isomer 3), 124605-1 5-8; 25, 124604... more Page 1. J. Am. Chem. SOC. 1990, 112, 1603-1606 1603 94-0; 24 (isomer 3), 124605-1 5-8; 25, 124604-95-1; 26, 124604-96-2; 56761-1 1-6; 42, 124649-64-5; 43, 124649-65-6; 44, 124649-66-7; 45, anti-27, 124605-05-6; anti-28, 124605-06-7; anti-29, 124618-73-1; ...

Research paper thumbnail of Formation of ¯avonoids, especially anthocyanin and chlorogenic acid iJonagold' apple skin: in¯uences of growth regulators and fruit maturity

Research paper thumbnail of Aromatic Ring Size Effect on the Photophysics and Photochemistry of Styrylbenzothiazoles

Research paper thumbnail of Fruit Set Failure in Tissue Culture-Derived Date Palm Trees (Phoenix dactylifera L.) cv. 'Nabt Saif' as Affected by Pollinator Type and Pollination Density

Research paper thumbnail of The effect of constitutional and conformational isomerization on the electrical properties of diblock molecular diode

Organic Electronics, Jun 1, 2011

Research paper thumbnail of Effects of light on ¯avonoid and chlorogenic acid levels in the skin oJonagold' apples

Research paper thumbnail of Nonpeptide bradykinin antagonists

Research paper thumbnail of Occurrence of fungi in activated sludge from MBRs

ABSTRACT The objective of this study is to evaluate the occurrence of fungi in aerobic and anoxic... more ABSTRACT The objective of this study is to evaluate the occurrence of fungi in aerobic and anoxic activated sludge from membrane bioreactors (MBRs). Thirty-six samples of both aerobic and anoxic activated sludge were taken from 2 MBR treating domestic wastewater. Over a period of eight months 2 samples from each plant were taken per month. The samples were prepared for count and definition of fungi. The obtained data show that, sixty species belonging to 27 genera were collected from activated sludge samples under aerobic and anoxic conditions. Regarding to the fungi definition, under aerobic condition the Geotrichum was found at (8.8%) followed by Penicillium (75.0%), Yeasts (65.7%) and Trichoderma (55.5%), while Yeasts (77.1%) Geotrichum candidumand Penicillium (61.1%) species were the most prevalent in anoxic activated sludge. The results indicate that activated sludge is habitat for growth and sporulation of different groups of fungi, both saprophytic and pathogenic.

Research paper thumbnail of Heteroaryloxymethyl ketones as interleukin-1βconverting enzyme inhibitors

Research paper thumbnail of Peptide analogs as irreversible interleukin-1β protease inhibitors

Research paper thumbnail of Biochemical Changes in Fruit of an Early and a Late Date Palm Cultivar During Development and Ripening

Http Dx Doi Org 10 1080 15538362 2011 578520, Apr 1, 2011

Research paper thumbnail of Hydrogen spillover phenomenon: Enhanced reversible hydrogen adsorption/desorption at Ta2O5-coated Pt electrode in acidic media

Electrochimica Acta, 2010

Research paper thumbnail of Earthquake activity in the Aswan region, Egypt

Pure and Applied Geophysics, Sep 30, 1995

The November 14, 1981 Aswan earthquake ( M L= 5.7), which was related to the impoundment of Lake ... more The November 14, 1981 Aswan earthquake ( M L= 5.7), which was related to the impoundment of Lake Aswan, was followed by an extended sequence of earthquakes, and is investigated in this study. Earthquake data from June 1982 to late 1991, collected from the Aswan network, are classified into two sets on the basis of focal depth (i.e., shallow, or deeper than 10 km). It is determined that (a) shallow seismicity is characterized by swarm activity, whereas deep seismicity is characterized by a foreshock-main shock-aftershock sequence; (b) the b value is equal to 0.77 and 0.99 for the shallow and deep sequences, respectively; and (c) observations clearly indicate that the temporal variations of shallow seismic activity were associated with a high rate of water-level fluctuation in Lake Aswan; a correlation with the deeper earthquake sequence, however, is not evident. These features, as well as the tomographic characteristics of the Aswan region ( Awad and Mizoue, this issue), imply that the Aswan seismic activity must be regarded as consisting of two distinct earthquake groups. We also relocated the largest 500 earthquakes to determine their seismotectonic characteristics. The results reveal that the epicenters are well distributed along four fault segments, which constitute a conjugate pattern in the region. Moreover, fault-plane solutions are determined for several earthquakes selected from each segment, which, along with the 14 November 1981 main shock, demonstrate a prominent E-W compressional stress.

Research paper thumbnail of Ozone electrogeneration at a high current efficiency using a tantalum oxide–platinum composite electrode

Electrochemistry Communications, Aug 1, 2006

This work examines the ozone (O3) electrogeneration at a tantalum oxide (TaOx) and Pt composite-c... more This work examines the ozone (O3) electrogeneration at a tantalum oxide (TaOx) and Pt composite-coated Ti (Pt–TaOx/Ti) electrode in comparison with a smooth Pt electrode. Pt–TaOx/Ti electrode was prepared by thermal decomposition procedure. O3 has been ...

Research paper thumbnail of Chemical and Isotopic Studies for the Evaluation of Groundwater, East of Sadat City – Egypt

Http Dx Doi Org 10 1080 10256019708234050, Sep 24, 2006

Seepage of irrigation and drainage waters

Research paper thumbnail of Extracellular synthesis of silver nanoparticles by marine derived fungus Aspergillus terreus MALEX

Nanomedicine: nanotechnology, biology, and medicine

Research paper thumbnail of Acrylamide toxicity in isolated rat hepatocytes

Toxicology in Vitro, Dec 1, 1998

Research paper thumbnail of Effect of exogenous application of anti-stress substances and elemental sulfur on growth and stress tolerance of tissue culture derived plantlets of date palm (Phoenix dactylifera L.) c.v. ‘Khalas’ during acclimatization

Page 46. Journal of Applied Horticulture, 8 (2): 129-134, July-December, 2006 Effect of exogenous... more Page 46. Journal of Applied Horticulture, 8 (2): 129-134, July-December, 2006 Effect of exogenous application of anti-stress substances and elemental sulphur on growth and stress tolerance of tissue culture derived plantlets ...

Research paper thumbnail of Electroanalysis of Peracetic Acid in the Presence of a Large Excess of Hydrogen Peroxide

Analytical Letters, 2001

The simultaneous electroanalysis of peracetic acid (PAA) and H2O2 in the presence of a large exce... more The simultaneous electroanalysis of peracetic acid (PAA) and H2O2 in the presence of a large excess of H2O2, up to hundred times the concentrations of PAA, has been presented for the first time. Square wave voltammetry using a gold electrode was successfully ...

Research paper thumbnail of Formation of flavonoids and chlorogenic acid in apples as effected by crop load

Research paper thumbnail of Photodimerization of cyclohexene and methane by decatungstate anions: Molecular orbital theory

J Am Chem Soc, 1990

Page 1. J. Am. Chem. SOC. 1990, 112, 1603-1606 1603 94-0; 24 (isomer 3), 124605-1 5-8; 25, 124604... more Page 1. J. Am. Chem. SOC. 1990, 112, 1603-1606 1603 94-0; 24 (isomer 3), 124605-1 5-8; 25, 124604-95-1; 26, 124604-96-2; 56761-1 1-6; 42, 124649-64-5; 43, 124649-65-6; 44, 124649-66-7; 45, anti-27, 124605-05-6; anti-28, 124605-06-7; anti-29, 124618-73-1; ...

Research paper thumbnail of Formation of ¯avonoids, especially anthocyanin and chlorogenic acid iJonagold' apple skin: in¯uences of growth regulators and fruit maturity

Research paper thumbnail of Aromatic Ring Size Effect on the Photophysics and Photochemistry of Styrylbenzothiazoles

Research paper thumbnail of Fruit Set Failure in Tissue Culture-Derived Date Palm Trees (Phoenix dactylifera L.) cv. 'Nabt Saif' as Affected by Pollinator Type and Pollination Density

Research paper thumbnail of The effect of constitutional and conformational isomerization on the electrical properties of diblock molecular diode

Organic Electronics, Jun 1, 2011

Research paper thumbnail of Effects of light on ¯avonoid and chlorogenic acid levels in the skin oJonagold' apples

Research paper thumbnail of Nonpeptide bradykinin antagonists

Research paper thumbnail of Occurrence of fungi in activated sludge from MBRs

ABSTRACT The objective of this study is to evaluate the occurrence of fungi in aerobic and anoxic... more ABSTRACT The objective of this study is to evaluate the occurrence of fungi in aerobic and anoxic activated sludge from membrane bioreactors (MBRs). Thirty-six samples of both aerobic and anoxic activated sludge were taken from 2 MBR treating domestic wastewater. Over a period of eight months 2 samples from each plant were taken per month. The samples were prepared for count and definition of fungi. The obtained data show that, sixty species belonging to 27 genera were collected from activated sludge samples under aerobic and anoxic conditions. Regarding to the fungi definition, under aerobic condition the Geotrichum was found at (8.8%) followed by Penicillium (75.0%), Yeasts (65.7%) and Trichoderma (55.5%), while Yeasts (77.1%) Geotrichum candidumand Penicillium (61.1%) species were the most prevalent in anoxic activated sludge. The results indicate that activated sludge is habitat for growth and sporulation of different groups of fungi, both saprophytic and pathogenic.