89 research outputs found

    Upper lip myomucosal flap for the repair of anterior oronasal fistula

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    Anterior oronasal fistula after cleft palatal repair is difficult to correct and it is consider challenging to many surgeons. Many techniques were used to repair this type of fistula without guarantee for success. Upper lip myomucosal flap is an alternative technique for the repair of this type of fistula. This is a retrospective descriptive case series study which included 10 patients diagnosed with anterior oronasal fistula after cleft palatal repair. They presented to Pediatric Surgery Department at the Faculty of Medicine, Mansoura University Children Hospital from the period between November 2013 and August 2014. In this technique, we do harvesting of the flap with measurement of its length and width, then baring the edge of the fistula with trying of its closure with local flaps. After that we suture the flap to the edge of the fistula and then evaluate the success rate. This study included 10 patients with age ranging from 15 to 72 months. The size of the fistula was less than 1 cm in six patients and more than 1 cm in four patients. The flap was used as an additional layer repair in seven patients and as the only layer for the repair in three patients. This technique was found to be successful in 70% of the patients with good healing without any recurrent fistula. We concluded that the use of this technique is feasible; however, its efficacy should be tested in larger number of patients to be considered as an option for the treatment of anterior oronasal fistula.Keywords: oronasal fistula, upper lip myomucosal flap, lip fla

    Experimental analysis of the squat of ships advancing through the New Suez Canal

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    As a ship travels forward, squat of the ship may occur due to an increase in sinkage and trim. Squat is a crucial factor that restricts ship navigation in shallow water. A new division of the Suez Canal, the New Suez Canal, recently opened for international navigation. It is important to obtain accurate prediction data for ship squat to minimise the risk of grounding in this canal. To provide guidance for shipping in canals a series of experiments was conducted on a model scale of the Kriso Container Ship (KCS). The squat of the KCS was examined by measuring its sinkage and trim. A wide range of water depth to ship draft ratios at various ship speeds was investigated. Additionally, the blockage effect was studied by varying the canal width, and deep water tests were performed. The results indicated that for Froude's number based on depth (Fnh) below 0.4, measured squat value do not change with either Fnh or depth to draft ratio (H/T). The squat increases with H/T values for Froude numbers higher than 0.4. Moreover, a canal with reduced width had a negligible effect on squat, suggesting that the next segment of the Suez Canal can be built to a narrower width

    Obstacles Faced by Social Workers in Trying to Benefit from Other Sciences Related to Social Service during their Professional Practice in Schools

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    Although social workers may have studied some important interdisciplinary sciences, they do not know how to use or apply them. This led the research team to conduct the study on some social workers in schools in El-Seeb, Muscat, to identify the difficulties they face while trying to benefit from interdisciplinary knowledge. The study is considered a descriptive; data was collected through an electronic questionnaire. The results showed that social workers encounter a number of difficulties related to the professional preparation of social workers, school administrations, available school facilities, and finally social workers themselves. The study also found that there is need to train social work students to conduct interdisciplinary research on social work and related sciences

    Bioactive Wound Dressing Gauze Loaded with Silver Nanoparticles Mediated by Acacia Gum

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    A wound dressing is very crucial component in wound healing process. Bioactive dressings play important role in wound sterilization and promote tissue healing and growth. The present work investigated the preparation of AgNPs in solid-state using acacia gum as both reductant and stabilizing agent. Sodium hydroxide (NaOH) was employed as activating agent and pH mediator. Acacia is a naturally occurring mixture of polysaccharides and glycoproteins. The obtained particles were in the range of 50 nm. The work was extended to evaluate the antimicrobial of AgNPs treated gauze cotton fabrics against gram positive (S. aureus), gram negative (P. aeruginosa) bacteria,C. albicans(yeast); andA. Niger(fungus). The inhibition zone of the as prepared silver nanoparticles was found to be 24 mm against both types of bacteria, 23 mm againstC. albicans(yeast), and inactive againstA. Niger(fungus). On the other hand, the treated gauze showed bactericidal behavior and a clear zone was found underneath the samples on the agar plate. The reduction percent in number of bacterial colonies of treated gauze fabrics in comparison to controlPseudomonas aeruginosaculture showed a reduction up to 100%. The aforementioned results promote the acquirement of bioactive antibacterial wound dressing
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