The Effect of Fulica Atra Feather on Oil Sorption Capacity of Polyurethane Foam

Comparative study of oil absorption using modified polyurethane foam as sorbents performed where Polyurethane type polyester was prepared locally and modified by using the feather of Coot (Fulica atra) Bird. The objective of the study to compare the oil spill removal capability of the pure and modified polyurethane.  Two types of Crude oil brought from Basrah oil fields used in this study, Sorption test in hydraulic oil was also done, the obtained results show that absorption capacity directly proportional to the filler type and used oils according to the difference in the capillary structure of both pure and modified polyurethane and the special structure of feather with stiff central shaft .  The polyurethane foam modified with wing feather has the highest absorption ratio due to changes between contour and fluff feather, the effect of viscosity very obvious in this study on absorption where the viscous oils unable to flow rapidly in to the sorbent due to the high cohesion more than the adhesion between oil and the sorbent materials, Finally, the modified polyurethane foam sorbents has a good buoyancy. Keywords: Polyurethane, Feather, Crude oil, Oil spill, Fulica atra, Polymer

LES COMPLICATIONS DE LA MALADIE DE CROHN CONDUITE DIAGNOSTIQUE ET THERAPEUTIQUE EN URGENCE: COMPLICATIONS OF CROHN’S DISEASE DIAGNOSTIC AND THERAPEUTIC CONDUCT IN EMERGENCY

La maladie de Crohn (MC) est une maladie inflammatoire transmurale du tube digestif d’évolution chronique, d’étiologie probablement multifactorielle. Elle touche l’adulte jeune entre 30 et 40 ans. La localisation la plus fréquente est le grêle distale avec des formes grêliques pures dans 30 à 40% et des formes grêlo-coliques dans 20 à 30%, la maladie de Crohn se traduit par des douleurs abdominales et des diarrhées qui peuvent persister plusieurs semaines. L’iléo-coloscopie avec biopsies est primordiale pour confirmer son diagnostic. Le traitement doit toujours être médical en dehors des situations d’urgences qui peuvent imposer des gestes chirurgicaux : drainage d’abcès, traitement des occlusions et des péritonites, La place de la laparoscopie dans la maladie de Crohn est faisable mais les résultats dépendent de l’expérience de l’opérateur.AbstractCrohn's disease (CD) is a chronic transmural inflammatory disease of the digestive tract, probably of multifactorial etiology. It affects young adults between the ages of 30 and 40. The most frequent localization is the distal hail with pure hail forms in 30 to 40% and hail-colonic forms in 20 to 30%. Crohn's disease results in abdominal pain and diarrhea which can persist for several weeks. Ileo-colonoscopy with biopsies is essential to confirm its diagnosis. The treatment must always be medical apart from emergency situations which may require surgery: abscess drainage, treatment of occlusions and peritonitis, the place of laparoscopy in Crohn's disease is feasible but the results depend on the operator’s experience.Keywords: Crohn's disease, Complications, Ileocecal resection, Recurrence. &nbsp

TRAVEL TIME RELIABILITY INDICES FOR URBAN ROUTES IN BAGHDAD CITY

Reliability is one of the main metrics of transport system efficiency and quality of service. For both travelers and transport management organizations, the high variance of road travel times has become a problem. Reliability has been identified as one of the main areas of interest of the Strategic Highway Research Plan II. In order to evaluate congestion and unexpected changes in travel time, reliability metrics are increasingly used. GPS devices provide for exact assessment of travel time for each connection along the routes used for this research. (14 Ramadan arterial street, Al-Karada arterial street and Damascus arterial street). A GPS-equipped instrumented car was used to gather 50 test runs at peak and off peak times. At peak and off peak hours, 50 test runs were obtained using a GPS-equipped instrumented car. Raising the buffer time index results in inferior conditions for reliability. A buffer index of AL- Karada street was created about 53% and 30% for Damascus street and finally for 14 Ramadan street which present a 29% buffer index for north direction. As for its southern direction 14 Ramadan street created a buffer index of about 65% and 33% for AL- Karada street and finally for Damascus street which present a 29% buffer index. In addition, travel time index for (14 Ramadan street, AL- Karada street and Damascus street) respectively is about 2.8 %, 3.3% and 2.6% for north direction, as for its southern direction the travel time index is obtained for (14 Ramadan street, AL- Karada street and Damascus street) respectively were a 3%,3.7%, and 2.5%. Finally, the 95% percentile travel time for observed three selected routes in this study, the extra delay was felt on each route (1627, 2212, and 1192) sec. for (14 Ramadan street, AL- Karada street and Damascus street) for north direction, as for its southern direction the extra delay that perceived on each route (2221, 2132, and 975) sec. for (14 Ramadan street, AL- Karada street and Damascus street) respectively

OPTIMAL DESIGN OF MODERATE THICK LAMINATED COMPOSITE PLATES UNDER STATIC CONSTRAINTS USING REAL CODING GENETIC ALGORITHM

The objective of the current research is to find an optimum design of hybrid laminated moderate thick composite plates with static constraint. The stacking sequence and ply angle is required for optimization to achieve minimum deflection for hybrid laminated composite plates consist of glass and carbon long fibers reinforcements that impeded in epoxy matrix with known plates dimension and loading. The analysis of plate is by adopting the first-order shear deformation theory and using Navier's solution with Genetic Algorithm to approach the current objective. A program written with MATLAB to find best stacking sequence and ply angles that give minimum deflection, and the results comparing with ANSYS

Enhancing Photoelectric Conversion Efficiency of Photovoltaic Panel Using Cooled Water by Evaporation

It has been found a linear progression between the panel temperature and its efficiency. A novel cellulose pad arrangement, which is saturated with water, at back surface of photovoltaic panel for cooling has achieved better results. The experimental results showed a reduction in maximum PV panel temperature at using the proposed water cooling system. The average temperature of the PV panel dropped 10.1°C and an increase in average solar panel efficiency about 20.8% during operating time. Then, a comparison between the PV panel results cooling by natural convection and using the proposed water cooling system will reveal the most efficient

Chemical and microbiological properties of drinking water in the city of Baghdad

Background: The quality of drinking water is directly related to community health. Therefore, improving the quality of drinking reflects positively on the health situation in general. The studies that deal with the quality of drinking water in the city of Baghdad in terms of chemical or microbial content are very scanty. Objective: The current review highlights the most important studies and research articles that concern the quality of drinking water, both bottled water and tap water, in terms of chemical and biological contamination and chemophysical specifications for drinking water. Abstract: Studies have shown that drinking water in the city of Baghdad, especially tap water, contains certain levels of heavy metals, and some bacterial species have also been diagnosed in drinking water transmitted through taps. But the levels of most of them are within the international standards. Although there are some indications of chemical and biological contamination. Conclusion: Although the standard specifications for drinking water in the city of Baghdad are acceptable, the pollution indicators in both tap water and bottled water should be monitored seasonally

Genotyping of HLA-class-I and II by PCR-SSP of Patients with Recurrent Aphthous Stomatitis

Background: Recurrent aphthous stomatitis is a common condition characterised by recurrent episodes of oral ulceration. Genetic factors have been implicated by numerous studies on the association of recurrent aphthous stomatitis and the genetically determined HLA subtypes. Objectives: Current study was established to shed light on the possible association of HLA class I and II alleles with recurrent aphthous stomatitis in Iraqi patients. Subjects and Methods: The study included 55 subjects: 30 recurrent aphthous stomatitis patients and 25 apparently healthy subjects as control. Polymerase chain reaction-specific sequence primers (PCR- SSP) assay was conducted to assess HLA- typing. Results: The present study showed a significant association of HLA-Cw*12:02:01-and HLADQB1* 02:01:01- alleles with recurrent aphthous stomatitis as compared with healthy control (P= 0.041and P=0.028 respectively). Another interesting finding in this study was the significant low frequency of HLA-DQB1*05:01:01- allele in patients when compared with healthy control (P=0.036). Conclusion: These findings demonstrated that HLA-Cw*12:02:01- and HLA-DQB1*02:01:01-alleles may play a role in the etiology of the disease. Whereas HLA-DQB1*05:01:01-05 may confer protective effects against recurrent aphthous stomatitis

Genetic variation of ten Iraqi wheat genotypes using (SSR) markers and morphological characterization

The current study based on using morphological traits and simple sequence repeat(SSRs) markers to study variation among ten Iraqi wheat genotypes.  Primers  wmc596 and  wmc603 produced  three alleles distributed between one in wmc596 and two in wmc603 with an average number of 1.50 allele  per locus . Primer wmc603 was more  informative  than wmc596 as produced PIC reached  0.3750. Morphological traits including whole plant ( dry weight , height ,leaf number ,leaf area and branches number) , spike( dry weight ,length and number) and weight of 100 grain used for cluster analysis .Cluster analysis depending on  morphological traits grouped wheat genotypes among  two major groups , the first included only Faris genotype while the other large one included the rest genotypes which further divided in to two sub clusters. Genotypes  identification  and studying genetic variation produce an efficient tool for genotypes selecting in breeding programs