39 research outputs found
Conjunctival papilloma caused by human papillomavirus type 11 treated with systemic interferon in a five-year-old boy
No full textOkan G, Ayan I, Karslioglu S, Altiok E, Yenmis G, Vural G.Conjunctival papilloma caused by human papillomavirus type 11 treated with systemic interferon in a five-year-old boy. Turk J Pediatr 2010; 52: 97-100 Conjunctival papilloma is a benign tumor of the conjunctival mucosa. In childhood, papilloma represents 7-10% of conjunctival tumors. Human papillomavirus (HPV)-6 and HPV-11 are the major HPV types responsible for conjunctival lesions. A five-year-old boy with a two-year history of conjunctival papilloma caused by HPV type 11 treated with systemic interferon alpha is reported and the literature is reviewed
Cervicofacial emphysema following unilateral external dacryocystorhinostomies: A case report
No full textCervicofacial emphysema (CFE), mostly seen after trauma or dental procedures, is an unexpected, extremely rare condition after uncomplicated dacryocystorhinostomy (DCR). It may be misdiagnosed as angioedema or necrotizing fasciitis. In this article, we present the case of a 40-year-old female with CFE twice after uncomplicated unilateral DCR for left and right sides on different operative days. CFE was confirmed by computed tomography, demonstrating extensive air within subcutaneous tissues of the face, neck, and orbital cavity. Subcutaneous crepitation supported the diagnosis. This is the first case report, to the best of our knowledge, describing a patient with recurrent massive CFE after each unilateral DCR
Optimal channel reuse in cellular radio systems with multiple correlated log-normal interferers
No full textEffects of Correlated Interferers in Multi-User Radio Systems
No full textElectrical Engineering, Mathematics and Computer Scienc
Cadaveric Training Course on Lower Eyelid Anatomical Dissection Techniques
No full text“Lower Lid Blepharoplasty-Entropion-Ectropion Oculoplastic Procedures Cadaveric Dissection Course” was performed in Bahcesehir University School of Medicine on February 19th, 2017 with the participation of 20 ophthalmologists. Lower eyelid anatomy, lower eyelid entropion-ectropion surgical techniques, subciliary and transconjunctival approach to lower eyelid blepharoplasty, prevention and management methods of surgical complications were shown on the fresh frozen cadaveric eyelids. All the participants were able to follow anatomic demonstrations and surgical techniques performed on the master table by experienced surgeons through live broadcasting. The stages of the lower eyelid cadaveric dissection and details of the anatomical structures were presented to the participants by the recording, reproducing, or broadcasting of moving visual images. Cadaveric workshops as a primary modality of simulation based surgical skills training have been used for a few years in Turkey. Although cadaveric dissection training has some disadvantages such as tissue loss, degeneration of anatomical key points, diversification in the structure, lack of experience in live tissue tonus, difficulties in providing cadavers, and high cost; it is the gold standard technique for surgical skill transfer in eyelid surgery
Snca-GFP Knock-In Mice Allows Tracking the Endogenous alpha-Synuclein in Action
Full text linkNon peer reviewe
Variability of bed drag on cohesive beds under wave action
Full text link© The Author(s), 2016. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Water 8 (2016): 131, doi:10.3390/w8040131.Drag force at the bed acting on water flow is a major control on water circulation and sediment transport. Bed drag has been thoroughly studied in sandy waters, but less so in muddy coastal waters. The variation of bed drag on a muddy shelf is investigated here using field observations of currents, waves, and sediment concentration collected during moderate wind and wave events. To estimate bottom shear stress and the bed drag coefficient, an indirect empirical method of logarithmic fitting to current velocity profiles (log-law), a bottom boundary layer model for combined wave-current flow, and a direct method that uses turbulent fluctuations of velocity are used. The overestimation by the log-law is significantly reduced by taking turbulence suppression due to sediment-induced stratification into account. The best agreement between the model and the direct estimates is obtained by using a hydraulic roughness of 10 m in the model. Direct estimate of bed drag on the muddy bed is found to have a decreasing trend with increasing current speed, and is estimated to be around 0.0025 in conditions where wave-induced flow is relatively weak. Bed drag shows an increase (up to fourfold) with increasing wave energy. These findings can be used to test the bed drag parameterizations in hydrodynamic and sediment transport models and the skills of these models in predicting flows in muddy environments.This research was supported by the Office of Naval Research funding of contracts N00014-07-1-0448, N00014-07-1-0756
Impact behavior of model porous concretes
No full textIn this work, findings of a numerical study performed to investigate the impact behavior of porous concrete, modeled as a four phase cementitious composite consisting of aggregates, cement paste, interfacial transition zones (ITZ) and air, are presented. The numerical analyses contributed to the process of designing a special type of concrete for safety purposes i.e. as a protective building material to be used in safety walls outside important buildings or munition magazines for storing explosives. In case of an explosion, large concrete fragments that are formed, cause a very important threat. Therefore, in the scope of a research project, designing a special type of concrete having sufficient strength, but fracturing into small fragments under impact loading was aimed. In the numerical analyses, model porous concretes, in which the amounts and properties of pores and aggregates could be varied individually, were used to see the sole effect of each parameter. According to the results, it was found that at constant total porosity, the impact strength increased with decreasing pore size while multiple fragmentation was observed. On the other hand, the impact strengths of porous concretes with different size aggregates (with constant total aggregate content and porosity) were approximately the same when no ITZ was defined. However, when ITZ was present, the impact strength was found to decrease as the aggregates were finer. This trend was also valid for the respective full concretes. Representative experimental results of porous concretes were also presented in order to support the numerical results.Accepted Author ManuscriptApplied MechanicsMaterials and Environmen
