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Six Years Clinical Experience and Surgical Considerations in Management of Cardiac Myxoma in Iraqi Center for Heart Disease—Single Center Experience

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World Journal of Cardiovascular Surgery 2022年第8期12卷 173-183页

作者： Hozhan hussein Blbas abdulameer mohsin hussein Muhammad Mahmud Salim Laith Saleh Alkaaby Abdulsalam Y. Taha Department of Cardiac Surgery Surgical Specialty Hospital—Cardiac Center College of Medicine Hawler Medical University Erbil Iraq Department of Thoracic and Cardiovascular Surgery College of Medicine University of Baghdad Baghdad Iraq Department of Cardiac Surgery Surgical Specialty Hospital—Cardiac Center Erbil Iraq Department of Cardiac Surgery Iraqi Center for Heart Diseases Baghdad Iraq Department of Thoracic and Cardiovascular Surgery College of Medicine University of Sulaimani Sulaymaniyah Iraq

Background: Cardiac myxomas are the most frequently encountered benign cardiac tumors that if left untreated are inexorably progressive and potentially fatal. Surgery is the only way of treatment, and if not treated with the right surgical technique recurrence occurs. Objectives: In this single center study we documented the patterns of presentation, localization, surgical approaches and outcome of cardiac myxomas. Methods: This is a retrospective study of 20 patients who underwent surgical removal of atrial myxoma from January 2010 to December 2015. All patients underwent general investigations, and echocardiography was performed on all patients and surgery was done using extracorporeal circulation and mild hypothermia. Results: The ages of the patients ranged from 14 years to 71 years, with a mean of 51.45 years. Most myxomas (75%) originated from left atrium, 20% from right atrium and biatrial in 5% of cases. The male-to-female ratio was 1:2.3 (14 females and 6 males). Myxomas were more common in blood group A+ and B+. Chief complaints were dyspnea (70%) and palpitation (50%). The majority of masses were attached to the interatrial septum (65%) and four of cases (20%) arose from the lateral wall. Right atrial trans-septal incision was used in 55% of cases. No recurrence was recorded in our study. Six patients had postoperative complications, mainly in the form of arrhythmia (3 cases), bleeding (0ne case) and renal failure (one case) which resulted in the death of the patient. Conclusions: Cardiac myxoma excision account for a very small percentage of cardiac procedures. Immediate surgical treatment is indicated because of high risk of embolization and sudden death. Cardiac myxomas can be excised with a low rate of mortality and morbidity. Follow-up examination, including echocardiography, should be performed regularly.

关键词： Atrial Myxoma Cardiac Tumors Cardiac Surgery

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Thermal performance of cooling strategies for asphalt pavement: A state-of-the-art review

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Journal of Traffic and Transportation Engineering(English Edition) 2021年第3期8卷 356-373页

作者： Salam Ridha Oleiwi Aletba Norhidayah Abdul Hassan Ramadhansyah Putra Jaya Eeydzah Aminudin Mohd Zul Hanif Mahmud Azman Mohamed Ahmed abdulameer hussein School of Civil Engineering Faculty of EngineeringUniversiti Teknologi MalaysiaJohor Bahru 81300JohorMalaysia Department of Civil Engineering College of EngineeringUniversiti Malaysia PahangGambang 26300PahangMalaysia

Asphalt pavements absorb and store more heat than natural surfaces. Thus, high temperatures are emitted from conventional asphalt pavements, subsequently releasing heat into the atmosphere and contributing to the urban heat island(UHI) phenomenon. Several cool pavement strategies, including the provision of additives and materials, surface coating and layer design, have been introduced to reduce the impact of UHI. This article provides a detailed review of the thermal properties of these mitigation measures in the context of cool asphalt pavements. The literature can be divided into three segments. The first segment discusses the impact of pavements on UHI and heat transfer mechanisms in pavements. The second segment focuses on various thermo physical properties that play an important role in mitigation measures;these properties include albedo(a), emissivity(e),solar reflective index, thermal conductivity(k), specific heat capacity(Cp) and thermal diffusivity. The third segment discusses cool asphalt pavement strategies which specifically cover the ability of the pavement to absorb and reflect solar energy on the basis of the materials and treatments used. The literature reveals that cooling strategies that deal with the pavement surface are important due to its direct incident solar effect, which depends on surface colour, material, shape and roughness. By using high-albedo and high-emissivity surfaces, the pavement can store less heat and lower the surface temperature. These results can also be achieved by designing the materials and pavement layers with low thermal conductivity and high specific heat capacity to reduce thermal diffusivity and pavement temperature and thus combat the heat radiated by the asphalt pavement.

关键词： Road engineering Urban heat island Cool pavements Asphalt pavement Thermal properties

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Evaluation of groundwater quality in the Dibdibba aquifer using hydrogeochemical and isotope techniques(Basrah Province,Iraq)

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Acta Geochimica 2022年第5期41卷 823-838页

作者： Inass A.Al-Mallah Wasan S.Al-Qurnawi hussein B.Ghalib Adnan B.Al Hawash Mariam H.abdulameer Geology Department College of ScienceUniversity of BasrahBasrahIraq Director of the Scholarships and Cultural Relations Department Ministry of Higher Education and Scientific ResearchBaghdadIraq Department of Marine Chemistry and Environmental Pollution Marine Science CenterUniversity of BasrahBasrahIraq Biology Department College of Education-QurnaUniversity of BasrahBasrahIraq

The Dibdibba aquifer is considered to be the main source in the Al-Zubair area because agriculture depends on it to provide grazing water in the *** groundwater well samples were collected from the shallow Dibdibba Aquifer in Basra Province,southern Iraq,through the dry and wet period for 37 water samples were collected,to investigate the water quality deterioration,which is a hydrogeochemical modeling study where used to represent the groundwater mixing *** physicochemical parameter results show the spatial and temporal variations along the groundwater flow path.A Durov diagram of the studied samples shows water type Na-SO_(4),which is represented by mixing waters that may be affected by *** geochemical model ratio results of the groundwater well samples have shown high mixing ratios in the east and southeast regions of the study *** stable isotope composition of groundwater samples indicated that the recharge source of the Dibdibba aquifer is meteoric water influenced by vapor water from the Arabian *** stable isotope results have shown that the enrichment ofδO values is relatively linked with high salinity concentration and indicated the mixing between the upper unconfined and the lower confined,especially in the eastern and southern parts of the study *** findings of geochemical modeling and isotopes indicated an increasing groundwater quality ***,we recommended avoiding these areas for intensive extraction of groundwater.

关键词： Safwan–Zubair Dibdibba formation Geochemical modeling Mixing Stable isotopes Basra

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Effect of dietary inclusion of sugar syrup on production performance,egg quality and blood biochemical parameters in laying hens

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Animal Nutrition 2018年第1期4卷 59-64页

作者： Ahmed S.hussein Mostafa A.Ayoub Ahmed Y.Elhwetiy Jamal A.Ghurair mohsin Sulaiman Hosam M.Habib College of Food and Agriculture United Arab Emirates University Al-Khaleej Sugar CO (L.L.C.)

The effects of dietary inclusion of sugar syrup on quality of egg,cholesterol level,production performance,serum total protein and blood biochemical parameters were evaluated in laying hens.A total of300 commercial Lohmann LSL hens(30 weeks of age) were randomly distributed into 3 dietary treatments which consisted of a normal corn diet containing cornesoy and 2 diets containing 5% and 10%sugar *** treatment was replicated 5 times(n=20).Egg production,feed intake,body weight and egg weight of laying hens fed different diets were *** experiment lasted for 20 *** Haugh unit scores of hens fed diets with sugar syrup were significantly increased(P < 0.05) compared with the control *** sugar syrup had no significant effect on liver enzymes,total protein,blood glucose and creatinine in all *** eggs laid by hens fed sugar syrup diets had lower cholesterol level(P < 0.05) compared with those laid by hens fed the control *** analysis showed that comparable electrophoretic patterns were noticed between serum proteins of treatment *** the results,it can be concluded that sugar syrup diets and corn diets have similar effects on feed intake,body weight,production of eggs and blood biochemical parameters in layer hens,which suggests sugar syrup can be used as an energy source for replacing part of corn in poultry layer diets.

关键词： Cholesterol Sugar syrup diet Egg Egg quality Protein

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Graded levels of sugar syrup in broiler rations and its effect on growth performance and blood biochemical parameters

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Animal Nutrition 2016年第3期2卷 180-185页

作者： Ahmed S.hussein Jamal Al Ghurair P.George Kunju John Hosam M.Habib mohsin Sulaiman College of Food and Agriculture United Arab Emirates University Al-Khaleej Sugar CO (L.L.C.)

Dietary energy for chickens normally includes cereal grains and fat. This innovative study investigated the effect of replacing part of the corn and fat in broiler chicken rations with graded levels of sugar syrup on growth performance and biochemical parameters. Experimental treatments consisted of feeding a corn-soy basal diet alone, or with graded levels of sugar syrup in increments of 5%, 10% and 15%. All starter diets were isonitrogenous and isocaloric. Body weight gain and efficiency of feed utilization of chicks fed the control diet alone were not significantly(P < 0.05) different from chicks fed diets supplemented with either 5% or 15% sugar syrup. Supplementation of sugar syrup to broiler diets had no significant effect on blood glucose, creatinine, total protein, or liver enzymes. Adding 5% sugar syrup to broiler rations significantly decreased blood cholesterol and triglycerides in chickens fed the sugar syrup diet compared with birds fed the control diet. In conclusion, the results shows sugar syrup can be used in poultry ration to replace part of the corn as a source of energy. These results allowed the authors to recommend the safe usage of sugar syrup in broiler rations.

关键词： Sugar syrup Broiler rations Growth Blood cholesterol

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Capacitive-Resistive Measurements of Cobalt-Phthalocyanine Organic Humidity Sensors

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Photonic Sensors 2015年第3期5卷 257-262页

作者： Mohammed T. hussein Iqbal S. NAJI Ameer F. abdulameer Eman K. HASSEN Muataz S. BADRI Department of Physics College of Science University of Baghdad Baghdad Iraq

In this study, the fabrication and characterization of capacitive humidity sensors using cobalt-phthalocyanine （CoPc） as the active material were presented. Thin films of CoPc were deposited by drop casting on glass substrates with pre-deposited aluminum electrodes to form A1/CoPc/A1 surface-type humidity sensors. The effect of humidity on the electrical properties of the CoPc film was investigated by measuring capacitance and resistance of the samples at four different frequencies of the applied voltage. It was observed that the capacitance of the sensor increased while the resistance decreased with raising the relative humidity. It was also found that the values of capacitance and resistance decreased with increasing frequency. The optical absorption spectra and optical band gap energy of CoPc films were measured. The structure of CoPc powder and thin films has been studied by X-ray diffraction （XRD）, scanning electron microscopy （SEM）, and atomic force microscopy （AFM）. Results of XRD studies show that the film structure is polycrystalline with the monoclinic structure while thin films have a peak for annealing temperatures with （100） orientation. Also, the surface morphology （grain size and roughness） for CoPc films have been studied by AFM.

关键词： Organic humidity sensors CoPc capacitance resistance

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An Automatic Recognizer for Iraqi License Plates Using ELMAN Neural Network

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Journal of Software Engineering and Applications 2010年第12期3卷 1163-1166页

作者： Abdul hussein mohsin Abbas H. Hassin Iman Qais Abdul Jaleel 不详

License plate recognition system plays an important role in many applications. An automatic recognizer for Iraqi License Plates using ELMAN Neural network is proposed in this manuscript. The processing procedures are developed in several stages. Experimental results are reported in the end of the paper to illustrate the performance of the proposed method.

关键词： Four Quadrant (4Q) Converter Interlacing Traction Systems Power Quality Analysis

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