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Search Results: 1 - 10 of 112445 matches for " Mutasem O. Taha "
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Preparation of Polyester-Based Metal-Cross Linked Polymeric Composites as Novel Materials Resistant to Bacterial Adhesion and Biofilm Formation
Suhair Saleh,Bassam Sweileh,Sami O. Taha,Ruhaifa Mahmoud,Mutasem O. Taha
Molecules , 2011, DOI: 10.3390/molecules16010933
Abstract: Bacterial biofilms constitute an extremely resistant form of bacterial colonization with dire health and economical implications. Towards achieving polymeric composites capable of resisting bacterial adhesion and biofilm formation, we prepared five 2,6-pyridinedicarboxylate-based polyesters employing five different diol monomers. The resulting polyesters were complexed with copper (II) or silver (I). The new polymers were characterized by proton and carbon nuclear magnetic resonance spectroscopy, inherent viscosity, infrared spectroscopy, differential scanning calorimetry and thermogravimetric analysis. The corresponding metal complexes were characterized by differential scanning calorimery and infrared spectroscopy. The amounts of complexed copper and silver were determined by atomic absorption spectrophotometry. Finally, the resulting composites were tested for their antibacterial potential and were found to effectively resist bacterial attachment and growth.
Preparation of Silver- and Zinc-Doped Mullite-Based Ceramics Showing Anti-Bacterial Biofilm Properties
Suhair Saleh,Mutasem O. Taha,Randa N. Haddadin,Duá Marzooqa,Hamdallah Hodali
Molecules , 2011, DOI: 10.3390/molecules16042862
Abstract: Zinc- and silver-doped mullite ceramic discs were prepared and tested as potentially resistant materials against bacterial adhesion and biofilm formation. Elemental analysis and X-ray diffraction studies showed that zinc ions were incorporated in the structural framework of the mullite, while silver ions remained outside the mullite crystal lattice, which allowed their slow (0.02 ppm/24 hours) leaching into the surrounding aqueous environment. In agreement with this behavior, silver-doped mullite showed potent resistance against surface attachment of Pseudomonas aeruginosa, while on the other hand, zinc-doped mullite failed to stop bacterial attachment.
Effect of Increasing Concentrations of Quinine on the Volatile Compounds in Cultured Tissues of Iris atrofusca Baker and Iris petrana Dinsmore
Ahmad H. Al-Gabbiesh,Dhia S. Hassawi,Mutasem O. Taha,Fatma U. Afifi
Biotechnology , 2007,
Abstract: Calli cultures from Iris atrofusca and I. petrana were propagated using standard Murashige and Skoog (MS)- and quinine treated MS-media. The propagated calli were analysed for their volatile oil contents. An irone-type volatile substance was identified by GC-MS analysis for the first time in both threatened Iris species. When calli cultures were grown in quinine treated MS-medium, quinine induced a dose-dependent decrease/cessation of the volatile compound. Furthermore, quinine caused gradual reduction of the calli biomass propagated from both Iris species.
Generalized PIC Detector for Distributed STBC under Quasi-Synchronization  [PDF]
Mohammed Taha O. El Astal, Ammar M. Abu-Hudrouss
Wireless Engineering and Technology (WET) , 2012, DOI: 10.4236/wet.2012.31004
Abstract: In this paper, we propose a Generalized Parallel Interference Cancelation (G-PIC) approach for the detection of D-STBC under Quasi-Synchronization in the case of any number of relay nodes with just statistical information about time misalignment. While as, most researches assume perfect synchronization between the relay nodes for the detection of D-STBC which is hard to achieve. This approach proved to be very effective to mitigate the degradation in the system performance due to the imperfect synchronization. The numerical simulations, for the proposed approach, showed that in just three iterations we can achieve performance close to the D-STBC with perfect synchronization.
On Proper Time in General Relativity
M. ?zer,M. O. Taha
Physics , 2000,
Abstract: It is shown how the relation $ds=cd\tau$ between the proper distance $s$ and the proper time $\tau$ is obtained in general relativity. A general relation in curved spacetime between $d\tau$ and $dt$ is given. This relation reduces to the special relativistic one for flat spacetime.
Spontaneous Decay of the Effective Cosmological Constant
Murat ?zer,M. O. Taha
Physics , 1998, DOI: 10.1142/S0217732398000620
Abstract: We discuss the notion that quantum fields may induce an effective time-dependent cosmological constant which decays from a large initial value. It is shown that such cosmological models are viable in a non-de Sitter spacetime.
Investigating Cognitive Processes Underlying Reading in Arabic: Evidence from Typical and Poor Reading Performance  [PDF]
Haitham Taha
Psychology (PSYCH) , 2013, DOI: 10.4236/psych.2013.412148

The current study has examined by which cognitive factors at the field of phonological and visual processing, rapid automatized naming and morphological awareness, contribute to reading and decoding abilities among typical and poor native Arabic readers. In the current study, the performances of two groups of participants, typical and poor readers were compared through tasks that examined their performance with regard to the areas of functions mentioned above in addition to other tasks that examined their performance in reading meaningful and pseudo words. The study’s results have indicated that the visual and phonological processing skills play an important role in reading among typical and poor readers as well. Moreover, it was found that the visual and phonological processing skills of participants with poor reading skills were lower in comparison to participants with typical reading abilities.

Ischemic Monomelic Neuropathy after a Brachio-Cephalic AVF Creation: A Case Report and Review of Literature  [PDF]
Mohamad Taha
World Journal of Cardiovascular Surgery (WJCS) , 2017, DOI: 10.4236/wjcs.2017.73004
Abstract: Ischemic monomelic neuropathy (IMN) is an under-diagnosed and disabling complication of upper extremity hemodialysis access. The hemodynamic disturbance that occurs during the time of access creation can lead to both neurologic and ischemic complications. These complications are most commonly seen following proximal procedures involving the upper limbs. Diagnosis and treatment are often delayed, and even with early intervention, neurologic dysfunction may be irreversible. IMN can lead to significant long-term disability. Almost all cases of IMN occur with brachial artery-based access, procedures and the vast majority of patients are diabetic and females. I report a case of IMN after left BC AVF operation which was treated successfully by early access ligation, providing a review of the literature.
Taha O. Mahwi and Kawa A. Obied *
International Journal of Pharmaceutical Sciences and Research , 2013,
Abstract: Objective: The study was designed to evaluate the efficiency of pharmaceutical care on the control of clinical parameters, such as fasting glycaemia and glycosylated hemoglobin also to assess drug therapy problems in patients with type 2 diabetes mellitus. Setting: the study was conducted at Diabetic Center in Sulaimany/Iraq, during 18 September 2010 -20 January 2011. Methods: A prospective and randomized control trial study was conducted with 130 type 2 diabetes patients with glycosylated hemoglobin of higher than 7.0%, they were divided into two groups: (i) pharmaceutical care (intervention) group (n=65), and (ii) the control group (n=65). They were monitored for 3 consecutive visits. Patients in the control group received usual medical care, but patients in the intervention group received both standard medical care and pharmaceutical care. Results: At the end of the study, a statistically significant reduction was observed in the glycemic levels of patients in the intervention group whilst a small reduction, which is statistically not significant, was detected in the control group. Furthermore, the follow-up of the intervention group by a pharmacist contributed to the resolution of 108 drug therapy problems identified. Conclusion: pharmaceutical care process provided by pharmacist to patients with type 2 diabetes mellitus could yield measurable improvements in the glycemic control, resolution of drug therapy problems and improvements in the compliance toward antidiabetic medication.
Retention of fetal membranes in an Arabian mare: a case report
O. I. Azawi,M. B. Taha
Iraqi Journal of Veterinary Sciences , 2008,
Abstract: No Abstract
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