نتایج جستجو برای: drainage mechanism

تعداد نتایج: 605357  

2010
Justin S. Gundara Richard Harrison

A liver abscess may arise following any insult to gut integrity allowing portal drainage of bacteria to hepatocytes. Foreign bodies such as bones, toothpicks and items of stationery have previously been implicated in compromising gut epithelium. Here we present the case of a 57 year old man suffering from a left liver abscess. This was defined on CT which incidentally also identified a chicken ...

Journal: :Brazilian journal of otorhinolaryngology 2005
Daniel Salgado Küpper Ricardo Cassiano Demarco Renato Resende Wilma Terezinha Anselmo-Lima Fabiana Cardoso P Valera Iracema Moribe

UNLABELLED Dacryocystorhinostomy (DCR) is a procedure used to create a lachrymal drainage pathway into the nasal cavity in order to reestablish the permanent drainage of a previously obstructed excretory system. AIM to report our results obtained with endoscopic DCR technique, describing its advantages and disadvantages STUDY DESIGN Historic cohort. MATERIAL AND METHOD we retrospectively ...

2014
Akira Kasuya Jun-ichi Sakabe Yoshiki Tokura

Ischemia-reperfusion (IR) injury is a cause of pressure ulcer. However, a mechanism underlying the IR injury-induced lymphatic vessel damage remains unclear. We investigated the alterations of structure and function of lymphatic ducts in a mouse cutaneous IR model. And we suggested a new method for evaluating the severity of pressure ulcer. Immunohistochemistry showed that lymphatic ducts were ...

Journal: :Neurosciences 2013
Yin Niu Hongping Miao Gang Zhu Zhi Chen

Arteriovenous malformations (AVMs) of the orbit are rare and are thought to be congenital. They can grow slowly or in a delayed fashion after a prolonged period of quiescence if there is a hemodynamic balance between the in-flow and the out-flow vessels. However, once the balance is destroyed, orbital AVMs may cause acute visual deterioration. We report a 17-year-old male with orbital AVM, and ...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2008
mostafa khosravy el-hossaini mehdi maerefat kiumars mazaheri

the present paper compares full kinetics mechanisms in numerical modelling of porous radiant burners (prb), with their reduced forms. the two most frequently used mechanisms of methane combustion (gri3.0 and miller) were selected and their effects were examined on temperature, species concentration, burning speed, and pollutant emission. while the findings of numerical simulation of prb show fi...

Journal: :جغرافیا و توسعه ناحیه ای 0
حسین زاده حسین زاده جهادی طرقی جهادی طرقی

this paper aims to assess the quality and accuracy aster dems and the arcgis alogorthms used for hydrologic analyses. to this end, first the plan of drainage networks in the region was extracted from aerial photographs and high resolution satellite images and was set as the real ground. in the next step, using the hydrology tool in arcgis software, raster networks of the region for the whole ca...

2013
Marco Tedesco Ian C Willis Matthew J Hoffman Alison F Banwell Patrick Alexander Neil S Arnold

Supraglacial lake drainage on the Greenland ice sheet opens surface-to-bed connections, reduces basal friction, and temporarily increases ice flow velocities by up to an order of magnitude. Existing field-based observations of lake drainages and their impact on ice dynamics are limited, and focus on one specific draining mechanism. Here, we report and analyse global positioning system measureme...

Ebrahim Panahpor Khoshnaz Payandeh, Majed Mousavi

In agricultural lands, high nutrient levels of nitrogen, phosphorus and potassium are very important due to the high need of plants. By improving the nutrient content of sodium soils, the fertility and growth of the plants improve. Accordingly, in order to investigate the effect of underground drainage on soil quality in Khuzestan region, this experiment was carried out in a completely randomiz...

The results of an experimental investigation of kerbside bridge deck drainage units are presented. The conveyance capacity, resistance coefficients and sediment transporting efficiencies of different types of drainage unit used in shallow bridge drainage decks are examined over a range of bed gradients likely to be encountered in practice. The use of a V-shaped cross section is shown to be part...

Journal: :The journal of trauma and acute care surgery 2012
Kenji Inaba Thomas Lustenberger Gustavo Recinos Crysanthos Georgiou George C Velmahos Carlos Brown Ali Salim Demetrios Demetriades Peter Rhee

BACKGROUND The optimal chest tube size for the drainage of traumatic hemothoraces and pneumothoraces is unknown. The purpose of this study was to compare the efficacy of small versus large chest tubes for use in thoracic trauma. Our hypothesis was that (1) there would be no difference in clinically relevant outcomes including retained hemothoraces, the need for additional tube insertion, and in...

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