Tikrit, Iraq
Tikrit, Iraq

The University of Tikrit is an Iraqi university located in Tikrit, Saladin Province, Iraq. It was established in 1987. It is one of the largest universities in Iraq with over 12,000 students. While it has faced challenges in recent years due to the conflict that has engulfed Iraq, it has begun to reemerge as a respected institution of higher education. It has sought to partner with other universities around the globe in an effort to reconnect its faculty and students to a global network. Wikipedia.

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Alzakar R.H.,Aljumhori Teaching Hospital | Alsamarai A.M.,University of Tikrit
Allergy and Asthma Proceedings | Year: 2010

Asthma is the most common chronic disease of childhood. Specific immunotherapy is widely used in several countries for managing allergic asthma. Many clinical trials and a meta-analysis of several studies support its efficacy to reduce the symptoms and medical requirements. The purpose of this study was to clarify the efficacy of subcutaneous immunotherapy (SCIT) in improving the symptoms and reducing medication requirements in primary school children with asthma in comparison with pharmacotherapy. A single-blind, drug-controlled clinical trial was performed. A total of 242 primary school children with allergic asthma were included in the study. The patients were recruited from subjects attending the Allergic Center in Mosul City. Their age range was 7-12 years with mean age of 10 ± 2 years. From the total only 197 children (81%) completed the study and were eligible for analysis, of those, 85 children were managed with SCIT and 112 children were managed with pharmacotherapies only. The follow-up after 1 year indicated that the children treated with SCIT show a marked reduction in the clinical symptoms, medication requirements, and the level of serum-specific IgE when compared with children treated with conventional drugs. SCIT was effective treatment and can prevent or decrease the onset of new sensitization to the offending allergen and maintain its beneficial effect for years after discontinuation. Copyright © 2010, OceanSide Publications, Inc.

Ahmed S.A.,University of Tikrit
Asian Journal of Chemistry | Year: 2013

1,3,3,5,5-Pentachloro-1-mono(2-amidopyridine)cyclotriphosphazene was prepared from hexachlorocyclotriphosphazene and 2-amino pyridine in acetone. The structure of the white crystals of the prepared compound was elucidated by the X-ray diffraction and supported by the FTIR and 1H, 13C, 31P NMR spectroscopy. Since the X-ray diffraction is not accurate in detecting the position of the hydrogen atoms, Density functional theory (B3LYP) was used to study the structure and the spectroscopic properties of the compound and its tautomers that belong to the hydrogen tautomerism. Calculations have shown that the isomer in which the hydrogen attached to the nitrogen atom of the amido nitrogen that attached to the pyridine ring has the lowest energy and that comes in accordance with 1H NMR and FTIR spectroscopy. Potential energy curve with calculated activation energy is reported.

Hamood M.T.,University of Tikrit
International Journal of Electrical and Computer Engineering | Year: 2016

This paper presents a new algorithm for fast calculation of the discrete Hartley transform (DHT) based on decimation-in-time (DIT) approach. The proposed radix-22 fast Hartley transform (FHT) DIT algorithm has a simple butterfly structure that offers flexibility for various powers-of-two transform lengths, significantly reducing the computational complexity with regular bit reversing orderfor the output sequence. The algorithm is derived through the three-dimensional index mapping approach and by incorporating two stages of the signal flow graph into an integrated butterfly. The algorithm is implemented and its arithmetic complexity has been analysed and compared with the current FHT algorithms, revealing that it is substantially minimize the structural complexity with better indexing arrangement that is suitable for efficient implementation. Copyright © 2016 Institute of Advanced Engineering and Science. All rights reserved.

Hassan N.K.,Universiti Sains Malaysia | Hassan N.K.,University of Tikrit | Hashim M.R.,Universiti Sains Malaysia
Journal of Alloys and Compounds | Year: 2013

Ultra violet photodetector based on flake-like ZnO with different flakes density were electrochemically deposited on silicon Si (111) substrate were fabricated. The deposition time greatly affected the shape, density and size of the flake, thereby altering its optical properties. The structural and optical properties of the fabricated nanostructures revealed ZnO structures with single crystalline hexagonal wurtzite containing two photoluminescence spectrum peaks at a near-band-edge emission in the ultraviolet region and a broad deep-level emission around the green emission. These peaks were affected by the period of deposition. The crystallinity of materials and the defects in the crystal structure were studied through Raman spectroscopy. Current voltage results showed that the flakes density greatly affected the ultra violet detection. Our results showed that photoresponse properties of the photodetectors strongly depend on the flakes density. The sharper flakes with high density exhibited enhanced UV detection performance, high sensitivity and shortened rise times compared to lower ones. We showed that photodetectors based on sharp, highly dense ZnO nanoflakes have a faster response than ones based on larger and lower density of ZnO nanoflakes. © 2013 Elsevier B.V. All rights reserved.

Gaied K.S.,University of Tikrit
Transactions of the Institute of Measurement and Control | Year: 2015

This paper presents a wavelet-based prognosis technique for fault-tolerant control (FTC) of an induction motor (IM) drive. The wavelet is used for analysis in fault detection due to its good filtering characteristics, localized capability and superior de-noising. The fault-tolerant algorithm is applied to a 1-kW IM to maintain the performance of the machine at an acceptable level. The FTC algorithm has been implemented in a new topology to ensure the best performance recovery in case of open and short stator winding faults, as well as speed sensor faults. In the worst-case scenario of operation, a protection stage has been implemented to stop motor operation. Experimental results demonstrate the reliability and effectiveness of the technique for diagnosis and prognosis of stator and speed sensor faults. The Texas Instrument TMS 320F28335 is used for the real-time implementation of the proposed wavelet-based prognosis and the FTC of the IM drive under different fault situations. © The Author(s) 2014.

Faisal S.M.,University of Tikrit
European Journal of Scientific Research | Year: 2011

This research deals with different structure form of insulator such as (Pin Post , Clamp top and Tie top ). These structure are applied in covered and stripped state. The finite element analysis (FEA) program Quick field was used to describe the electric field surrounded the ceramic insulator ,Also the leakage currents of insulator are measured. The results show that Pin post insulators have a leakage current and electric field larger than both clamp top and tie top. The clamp top and tie top insulator show almost the same value of leakage current measurements and the highest electric field is exits near the HV end of the insulator. © EuroJournals Publishing, Inc. 2011.

Lateef K.H.,University of Tikrit
European Journal of Scientific Research | Year: 2011

Assessing of water quality status for special use is the main objective of any water quality monitoring study. Water quality index (WQI) is a mathematical tool used to transform large quantities of water quality data into single number which represents water quality level. This research paper is accomplished to evaluate the quality of groundwater in Tikrit and Samarra cities-Iraq for the purpose of drinking water by using Water Quality Index (WQI). WQI requires several parameters to satisfy the calculations. These parameters include physical and chemical characteristics of groundwater sampling. The results showed that 9 wells which are lies in the cities center fall in class III (poor water) according to WQI while one well fall in class IV (very poor water) which is lies in south of Samarra. Also this study concluded that the groundwater quality of Tikrit is better than Samarra depending on the evaluation of WQI for the purpose of drinking water. © EuroJournals Publishing, Inc. 2011.

Al-Dury S.A.O.,University of Tikrit | Al-Jibori S.A.,University of Tikrit
Oriental Journal of Chemistry | Year: 2012

Tetrahedral mercury(II) complexes of the types [HgCl(sac)(PPh 3) 2], [HgCl(sac)(diphos)], [Hg(sac) 2(PPh 3) 2] or [Hg(sac) 2(diphos)] and octahedral complexes of the type [Hg(sac) 2(dppe) 2] or [Hg(sac) 2(dppp) 2] {diphos = Ph 2P(CH 2) nPPh 2; n=1, dppm; n=2, dppe; n=3, dppp; n=4,dppb} were prepared and characterized by molar conductance, elemental analysis, infrared spectra, 1H and 31P-( 1H) nmr data.

Ra'oof W.M.,University of Tikrit | Latif I.A.R.,University of Tikrit
European Journal of Scientific Research | Year: 2010

This study began from the mid of July, 2008 till the mid of September, 2009. A total of one hundred sixty eight (168) samples were collected from different sources of infections. These were collected from patients of both sexes and different ages hospitalized in Tikrit Teaching Hospital. Specimens including swabs from wounds, burns, ear infections, and specimens of sputum, stool and urine were included in this study. Thirty six (21.5%) isolates were identified as P. aeruginosa. The isolates were identifiedaccording to morphological, culturalandbiochemical characteristics. Some virulence factors were studied such as haemolysin, lecithinase, pyocyanin pigment, urease and alkaline protease. All isolates produced haemolysin, lecithinase, pyocyanin but only 22(61.1%) isolates produced urease and 31(86.1%) isolates produced alkaline protease. All P. aeruginosa isolates produced pyocyanin pigment on King's A medium in different amounts, whereas some of them produced different types of other pigments like (pyoverdine-yellow, pyorubin-red, and pyomelanin-black) on King's B medium and also in different amounts. Swarming motility was detected in all studied isolates and results revealed that 23(63.8%) of studied isolates were detected dendritic swarming pattern, and 13(36.1%) of these isolates were ring swarming pattern. Quantitative assay of pyocyanin production was conducted. Since six isolates taken from different human infections were selected for pyocyanin extraction. The results showed that one of the sputum isolates produced the greatest amount of pyocyanin (12.069 μg/ml), this isolate was suspected to be taken from a cystic fibrosis (CF) patient, while one of the wound isolates produced little amount of pyocyanin (2.68 μg/ml). A qualitative assay of pyocyanin was conducted, since pyocyanin was purified after extraction and the antimicrobial effect was studied in vitro on the growth of some bacterial and fungal species. The results showed that pyocyanin was effective on the growth of the following studied microorganisms: Escherichia coli, Proteus mirabilis, Staphylococcus aureus, Salmonella typhi, Klebsiella pneumoniae and Penicillium sp., while it was not effective on P. aeruginosa and Fusarium sp.

Alobaidi A.H.A.,University of Tikrit
Anti-Inflammatory and Anti-Allergy Agents in Medicinal Chemistry | Year: 2014

Dyslipidemia plays an important role in the provocation of cardiovascular disease. Psoriasis was associated with metabolic disorder and therefore the present study was performed to evaluate the therapeutic effect of combination of blackseed with garlic as a treatment for dyslipidemia. A randomized, double-blind, placebo controlled, two arms parallel study consisted of 4 week diet stabilization period that included a 4 week base line evaluation phase, followed by an 8 week treatment period. The study comprised men (n=127) and women (n=131) aged 24 to 57 years, who met the NCEP ATP III criteria for drug treatment of hyperlipidemia and dietary intervention. Three hundred patients were randomized to treatment and 258 completed the study. The lipid profile included total cholesterol, HDL-C, Non-HDL-C, LDL-C, and Triglyceride. There were no significant differences between the two treatment groups at the baseline for triglyceride, HDL, Non-HDL, LDL and total cholesterol. Following 8 weeks treatment with simvastatin plus placebo the reduction in Non-HDL, triglyceride, LDL and total cholesterol following treatment course was statistically highly significant (P= <0.01). However, the increase in HDL was significant (P=0.02). Patients who received simvastatin, plus black seed and garlic for 8 weeks of treatment show significant differences between baseline and after treatment course for all tested profiles (P=<0.01). This comparison of mean values reveals a high significant difference (P=<0.01) for cholesterol, triglyc-eride, Non-HDL, and LDL, and significant difference (P=0.03) for HDL between the two treatment groups. This study suggests that the evaluated combination was effective in correction of dyslipidemia. Large scale clinical trials comparing different doses are warranted. © 2014 Bentham Science Publishers.

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