The University of Kufa is an Iraqi university located in Najaf, Iraq. It was founded in 1987 and comprises 12 colleges. The College of Medicine was established a decade earlier and attached to Mustansiriya University. In 1989, the College of Arts was established with only two departments: the Arabic Language Department and the Department of History. In 1991, the regime of Saddam Hussein closed the university after an uprising in March 1991, but two years later it was re-opened. Wikipedia.
Al-Mulla E.A.J.,University of Kufa
Polymer Science - Series A | Year: 2011
In this study, new biopolymer nanocomposites have been prepared. Fatty nitrogen compounds (FNCs); fatty amide (FA), fatty hydroxamic acid (FHA), and carbonyl difatty amide (CDFA), which were synthesized from palm oil, have been used as one of organic compounds to modify natural clay (sodium montmorillonite). The clay modification was carried out by stirring the clay particles in an aqueous solution of FA, FHA, and CDFA by which the clay layer distance increases from 1.23 to 2.71, 2.91 and 3.23 nm, respectively. The modified clay was then used in the preparation of the polylactic acid/epoxidized palm oil (PLA/EPO) blend nanocomposites. The interaction of the modifier in the clay layer was characterized by X-ray diffraction (XRD), and Fourier transform infrared (FTIR). Elemental analysis was used to estimate the presence of FNCs in the clay. The nanocomposites were synthesized by melt blending of the modified clay and PLA/EPO blend at the weight ratio of 80/20. The nanocomposites were then characterized using XRD, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and tensile properties measurements. The XRD and TEM results confirmed the production of nanocomposites. PLA/EPO modified clay nanocomposites show higher thermal stability and significant improvement of mechanical properties in comparison with those of the PLA/EPO blend. © 2011 Pleiades Publishing, Ltd.
Omran Alkhayatt A.H.,University of Kufa |
Hussian S.K.,thanaa University
Materials Letters | Year: 2015
Pure and fluorine highly doped SnO2 (TO and FTO) thin films with different dopant concentrations (0.15, 0.25, 0.35 mol/l) have been prepared by spray pyrolysis technique at substrate temperature 450 °C. The crystal structure and surface morphology of the prepared films were characterized by using X-ray diffraction and scanning electron microscopy SEM. The XRD patterns show polycrystalline structure in nature with tetragonal (rutile) phase. The average crystallite size decreases with increasing of dopant concentrations and its values in the range (32-56) nm which indicate that all films have nanocrystalline structure. The SEM images show a homogeneous and smooth uniform surface with no detectable micro-cracks, the EDX spectra confirm the stoichiometry of the prepared films. The optical properties of the films were investigated by UV-vis spectrophotometer. In the visible range, the optical transmittance (T%) of the films with varying dopant concentrations was found to be (83-98)% and the fundamental absorption edge shifted toward higher energies (blue shift) with increasing of fluorine dopant concentration. The energy band gap value of pure SnO2 was 3.95 eV and it increases to 4.04, 4.08 and 4.1 eV with the increasing of dopant concentration, this behaviors can be attribute to the (B.M) effect or Burstein-Moss shift. © 2015 Published by Elsevier B.V.
Hussein A.H.,University of Kufa
International Journal of Pharmacy and Pharmaceutical Sciences | Year: 2015
Objectives: Okra (Abelmoschus Esculentus) is one of the world wide distributed plants used mostly as a food in most civilizations, its fruit characterized by sticky materials tears from it upon fruit cutting, this sticky material could be beneficial in matrix formation and sustained release tablets formulation. Methods: Fresh okra was collected and macerated in different extracting systems in variable ratios. The extracts were dried and collected. Selected extracts were granulated and compressed into tablets using the tablet machine. The formulated tablets were characterized in terms of hardness, friability disintegration and other gross findings, Extract from HCl and NaoH (OE 7 and8) were selected to prepare SR tablet of pentoxifylline (PTX); the same tests were performed in addition to measure the rate of PTX release from the tablet over ten hours. Results: Results obtained shows a promising retardation polymer as the tablets has an elegant shape and texture without chips or cracks, and not friable (FHCl 1 loses 0.03% of its weight after friability testing), tablet strength is acceptable since tablets resist breaking strength more than 200 Newtons, in addition, time needed for tablet disintegration about 175 minutes as found in F NaoH 3. Fortunately, the prepared tablets show a slow release of PTX following zero order kinetic (90% released in eight hours in a constant rate about 10% per hour). Conclusions: These results show the emerging of novel retardant for SR preparation obtained from natural plant okra. © 2015, International Journal of Pharmacy and Pharmaceutical Sciences. All rights reserved.
Al-Mulla E.A.J.,University of Kufa
Advanced Materials Research | Year: 2012
In this study, difatty acyl urea (DFAU), synthesized from palm oil, and natural clay (sodium montmorillonite) were used to prepare organoclay (OMMT). The clay modification was carried out by stirring the clay particles in an aqueous solution of DFAU at which the clay layer thickness increased from 1.25 to 2.82. This OMMT was then used for nanocomposite production to improve the property balance of poly(lactic acid) (PLA) by solution casting process. The nanocomposite was characterized using various apparatuses. The X-ray diffraction (XRD) and transmission electron microscopy (TEM) results confirmed the production of nanocomposite. PLA modified clay nanocomposite shows higher thermal stability and significant improvement of mechanical properties in comparison with pure PLA. The use of DFAU as a modifier will reduce the dependence on petroleum-based surfactant. In addition to its applications such as films and textile fibers, this nanocomposite represents a good candidate to produce disposable packaging because they have good mechanical, thermal properties, fabricability and processability.
Al-Mulla E.A.J.,University of Kufa
Fibers and Polymers | Year: 2011
In this study, different organoclays (OMMTs) were prepared using various fatty nitrogen compounds (FNCs) and natural clay, sodium montmorillonite (MMT). The clay modification was carried out by stirring the clay particles in an aqueous solution of fatty amides (FA), fatty hydroxamic acids (FHA), and carbonyl difatty amides (CDFA). These OMMTs were then used for nanocomposites production to improve the property balance of poly(lactic acid) (PLA) by solution casting process. All sets of OMMTs and nanocomposites were characterized using various apparatuses. In the nanocomposites, where the clay surface is pretreated with FA, FHA and CDFA, the basal spacing of the clay increased to 2.94, 3.26 and 3.80 nm, respectively The X-ray diffraction (XRD) and transmission electron microscopy (TEM) results confirmed the production of nanocomposites. PLA modified clay nanocomposites show higher thermal stability and significant improvement of mechanical properties in comparison with pure PLA. © 2011 The Korean Fiber Society and Springer Netherlands.
Al-Hakeim H.K.,University of Kufa |
Al-Rammahi D.A.,University of Kufa |
Al-Dujaili A.H.,University of Kufa
Journal of Affective Disorders | Year: 2015
Major depressive disorder (MDD) and schizophrenia are associated with inflammatory processes. Studies have shown that these disorders exhibit increase in the level of one or more proinflammatory markers. However, these studies did not exclude patients with obvious inflammation (i.e., CRP>6 mg/L). Therefore, a comprehensive study should include those inflammatory disorders. In the present study, the inflammatory natures of MDD and schizophrenia were investigated. To achieve this goal, serum levels of interleukin-6 (IL-6), interleukin-18 (IL-18), tumor necrosis factor alpha (TNFα), and soluble interleukin 2 receptor (sIL-2R) in depressed and schizophrenic patients were obtained and compared with those of the control group. Results showed a significant increase (p<0.05) in serum levels of IL-6, IL-18, TNFα, and sIL-2R in MDD and schizophrenic patients compared with the control group. Also patients with schizophrenia group showed higher levels of the inflammatory markers than MDD and control groups. The current study concluded that the immunological response in the MDD and schizophrenic patients groups was significantly stimulated. These disorders may be considered an inflammatory disorder because of elevated levels of proinflammatory cytokines in spite of lacking an overt inflammation. Furthermore results of this study suggested the possibility of the use of anti-inflammatory drugs as adjuvant therapy in schizophrenic and depressive disorders. © 2015 Elsevier B.V. All rights reserved.
Hasan S.Y.,University of Kufa |
Shaker A.S.,University of Kufa
Applied Optics | Year: 2012
In this research, Zernike polynomials for a unit annular elliptical aperture (ellipse inscribed by a unit circle of unit radius obscured by elliptical obscuration) have been studied in Cartesian coordinates and in polar coordinates. These polynomials have been shown to form a complete basis orthogonal on a unit annular ellipse aperture, and they represent balanced classical aberrations just as Zernike circular polynomials in a unit circle. © 2012 Optical Society of America.
Thahab S.M.,University of Kufa
Optoelectronics and Advanced Materials, Rapid Communications | Year: 2011
We have achieved growth of ZnO nano-columns (NCs) on porous silicon (PS)/Si(111) substrates, using commercial Zn powder by thermal evaporation in an atmosphere. Samples are annealed in wet oxygen and ambient argon gases of argon (Ar) gas. Structural and optical characterizations were performed using scanning electron microscopy (SEM), high resolution X-ray diffraction (HR-XRD) and photoluminescence (PL) spectroscopy. The obtained results of ZnO NCs indicated that the ZnO NCs on PS/ Si (111) substrates were of quite well-ordered and of good quality because the lattice mismatch between the ZnO NCs and substrates is small as compared to growth on some other substrates.
Al-Dhalimi M.A.,University of Kufa |
Abo Nasyria A.A.,Alsadir Teaching Hospital
Journal of Cosmetic and Laser Therapy | Year: 2013
Background and objectives: Striae distensae (SD) are a common skin condition that is a significant source of psychological distress. Intense pulsed light (IPL) may play a role in the management of the disease. The purpose of this study was to compare the effect of two wavelengths of IPL (650 nm vs 590 nm) in the treatment of SD. Patients and methods: Twenty patients with SD were included. Five sessions of IPL were carried out in each patient at 2-week intervals. Each side of the body was treated with a single wavelength. The response to the therapy was evaluated 2 months after the last session. Patients' satisfaction was also used in the assessment. Results: The reduction in the sum of lengths and maximum width on both sides was statistically highly significant (p < 0.0001). The reduction in the degree of erythema was statistically significant only when the wavelength of 590 nm was used (p = 0.0157). The patient satisfaction was better when the wavelength of 590 nm was used. All side effects were transient and well tolerated. Conclusion: The study showed that IPL is a good option for the treatment of SD and the wavelength of 590 nm was more effective than the wavelength of 650 nm. © 2013 Informa UK, Ltd.
Al-Mulla E.A.J.,University of Kufa
Korean Journal of Chemical Engineering | Year: 2011
Clay modification was carried out by treatment of fatty nitrogen compounds (FNCs); fatty hydrazide (FH), hydroxy methyl fattyamide (HMFA), and difatty acyl thiourea (DFAT) were synthesized from vegetable oils with a sodium montmorillonite (MMT) as natural clay. This process was accomplished by stirring the clay particles in an aqueous solution of FH, HMFA, and DFAT, by which the clay layer thickness increased from 1.23 to 2.69, 2.89 and 3.21 nm, respectively. The modified clay was then used in the preparation of the polylactic acid/epoxidized palm oil (PLA/ EPO) blend nanocomposites. The interaction of the modifier in the clay layer was characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR). Elemental analysis was used to estimate the presence of FNCs in the clay. The nanocomposites were synthesized by solution casting of the modified clay and a PLA/EPO blend at the weight ratio of 80/20, which has the highest elongation at break. The nanocomposites were then characterized using XRD, transmission electron microscopy (TEM), thermogravimetric analysis (TGA), and tensile properties measurements. Improvement in mechanical properties of the FH-MMT, HMFA-MMT, and DFAT-MMT nanocomposites was obtained when 2% of the DFAT-MMT and 3% of both FH-MMT and HMFA-MMT loadings were used. PLA/EPO modified clay nanocomposites show higher thermal stability in comparison with those of the PLA/EPO blend. The XRD and TEM results confirmed the production of nanocomposites. © 2010 Korean Institute of Chemical Engineers, Seoul, Korea.