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78 results for “Hamza”
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Research ArticleOpen accessIn the author namesSensitization of Photohemolysis by a New Extraction from Flowers and Aerial Parts of Cichorium Pumilum Jacq: Effects of Inulin and Hydrogen PeroxideM-Ali H. Al-Akhras, Amr Amin, Karima Mohammad et al.Addition of inulin and hydrogen peroxide to new photosensitizers extracted from the flowers and aerial parts of the chicory (Cichorium Pumilum Jacq) have been investigated. Some of the isolated photosensitizers remain unidentified compounds. Chicory extracts are found to be dependent on light and temperature. Higher photohemolysis rate was noticed under the influence of light as compared to temperature. The effect … …American Journal of Pharmacology and Toxicology, Vol. 2, Issue 2 · 30 Jun 2007 · 7,722 accessesView PDFCite
Research ArticleOpen accessIn the author namesIn Vitro Studies on the Effect of Phototoxicity of A New Photosensitizer Extracted from Flowers and Aerial Parts of Cichorium pumilumM-Ali H. Al-Akhras, Amr Amin, Karima Mohammad et al.New photosensitizers have been extracted from the flowers and aerial parts of the Cichorium pumilum Jacq (chicory). Chicory grows naturally in local wild areas and is known to cause quick death of only white sheep during its flowering season in autumn. Some of those isolated photosensitizers are yet to be further characterized. Preliminary investigations show a high degradation of isolated … …American Journal of Pharmacology and Toxicology, Vol. 2, Issue 2 · 30 Jun 2007 · 7,757 accessesView PDFCite
Research ArticleOpen accessIn the author namesGlobal Behavior of a Higher Order Difference EquationAlaa E. Hamza, R. Khalaf-AllahIn this work we study the asymptotic stability of the nonnegative equilibrium points of the difference equation. We discuss the conditions under which there exist prime period two solutions and semicycles. Finally we investigate the oscillation and the existence of unbounded solutions. …Journal of Mathematics and Statistics, Vol. 3, Issue 1 · 31 Mar 2007 · 7,059 accessesView PDFCite
Research ArticleOpen accessIn the author namesA Practical and Secure Hash Function-Based Password Authentication SchemeMuhammad Helmi Ali, Eddie Shahril Ismail, Firdaus Mohamad HamzahIn this study, we propose a practical and secure hash function-based password authentication scheme using smart cards. Our proposed scheme offers some advantages and interesting features. Firstly, the scheme does not require a verification table and is secure against the replay attacks, an attack that most of the existing schemes suffer. Secondly, any user of the scheme be allowed to … …Journal of Computer Science, Vol. 15, Issue 7 · 17 Jul 2019 · 7,743 accessesView PDFCite
Research ArticleOpen accessIn the author namesMolecular Approach to Identify Gobioid Fishes, “Nike” and “Hundala” (Local Name), from Gorontalo Waters, IndonesiaAbdul Hafidz Olii, Femy M. Sahami, Sri Nuryatin Hamzah, Nuralim PasisingiData of the species scientific name is required to study biodiversity and conservation of local fish species. Nike and hundala are the local names for fish found in Gorontalo whose scientific names are unknown and recognized by local people as two different species of fish. This study aims to identify the genetic and species of nike and hundala fish. Nike … …OnLine Journal of Biological Sciences, Vol. 19, Issue 1 · 11 Feb 2019 · 8,511 accessesView PDFCite
Research ArticleOpen accessIn the author namesInvestigation of Methylene Blue Dye Adsorption from Polluted Water Using Oleander Plant (Al Defla) Tissues as SorbentRajab Abu-El-Halawa, Sami A. Zabin, Hamzah H. Abu-SittahThe main purpose of this research was to investigate the ability of Oleander plant (Al Defla) tissues to adsorb Methylene Blue (MB) dye from polluted water. The experiments were carried out through batch-adsorption technique to investigate the influence of the following experimental parameters on adsorption process namely, adsorbent quantity, MB initial concentration, adsorbent particles size, ionic strength, pH and temperature. … …American Journal of Environmental Sciences, Vol. 12, Issue 3 · 4 Jun 2016 · 8,004 accessesView PDFCite
Review ArticleOpen accessIn the author namesHost Cell and Antibody Response towards Pasteurella Multocida B2 Infection-A General ReviewEric Lim Teik Chung, Faez Firdaus Jesse Abdullah, Yusuf Abba et al.Pasteurella multocida was first shown to be the causative agent of fowl cholera by Louis Pasteur in 1881. Since then, this Gram-negative bacterium has been identified as the causative agent of many other economically important diseases in a wide range of hosts. Haemorrhagic Septicaemia (HS) is a disease, caused by Pasteurella multocida serotypes B2 and E2 that causes acute, highly … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 3 · 27 Jun 2015 · 7,859 accessesView PDFCite
Research ArticleOpen accessIn the author namesRespiratory Health of Male Steel Workers in the Eastern Coast of Peninsular MalaysiaNurul Ainun Hamzah, Shamsul Bahri Mohd Tamrin, Noor Hassim IsmailA cross sectional study was carried out to determine the prevalence of respiratory symptoms and associated factors with respiratory health among male steel workers. A total of 424 male workers in the steel production plant were recruited using a stratified random sampling. Subjects were interviewed regarding respiratory symptoms using a British Medical Research Council (BMRC) Questionnaire on respiratory symptoms and … …American Journal of Applied Sciences, Vol. 12, Issue 5 · 27 Jun 2015 · 6,937 accessesView PDFCite
Research ArticleOpen accessIn the author namesAlterations in Interleukin-1β and Interleukin-6 in Mice Inoculated Through the Oral Routes Using Graded Doses of p. Multocida Type b: 2 and its LipopolysaccharideOmar Suwaidan Ali, Lawan Adamu, Faez Firdaus Jesse Abdullah et al.The gram-negative bacterium Pasteurella multocida serotype B: 2 is an important veterinary and opportunistic human pathogen that causes deplorable welfare problems and colossal economic production losses in bovine and other animal species throughout the world. Pasteurella multocida type B: 2 and its LPS are associated with Haemorrhagic Septicaemia (HS) in mice as animal model. Sixty healthy Balb c mice were … …American Journal of Animal and Veterinary Sciences, Vol. 10, Issue 1 · 22 Dec 2014 · 7,696 accessesView PDFCite
Research ArticleOpen accessIn the author namesSpeciation and Availability of Cr, Ni and Co IN Serpentine Soils of Ranau, SabahMahsa Tashakor, Wan Zuhairi Wan Yaacob, Hamzah MohamadProblem statement: Serpentine soils are known as a geogenic source of heavy metal pollution because they are anomalously rich in chromium, nickel and cobalt. Approach: However, only that portion of these metals which is available in the ecosystem and incorporates in the bio-transformation processes, is dangerous for the environment. Availability of Cr, Ni and Co depends on their speciation into … …Current Research in Geoscience, Vol. 2, Issue 1 · 20 Mar 2013 · 13,558 accessesView PDFCite