Reflux after Ivor Lewis esophagectomy has a deleterious effect on anastomotic wound healing and is a risk for pulmonary aspiration [1]. We report endoscopic negative pressure therapy, using a novel double-lumen open-pore film drainage method, for prevention of postoperative reflux. A 70-year-old patient underwent Ivor Lewis esophagectomy because of carcinoma of the distal esophagus (pT2pN0), ha...

one of the most prominent industries is bending, while using rotary draw bending method is known to be the most conventional approach for thin wall tube bending. pressure die is one effective tool which boosts the tube during the process and eventually improves the bending quality. other effective parameters are mandrel and the amount of clearance between tube and mandrel. in the present study,...

The transporting function of many branched tubular networks like our lungs and circulatory system depend on the sizes and shapes of their branches. Understanding the mechanisms of tube size control during organ development may offer new insights into a variety of human pathologies associated with stenoses or cystic dilations in tubular organs. Here, we present the first secreted luminal protein...

In oral and maxillofacial surgery, many complications associated with nasotracheal tube can be caused. In this case, we reported ballooning tube damage of nasotracheal tube during orthognathic double-jaw surgery and replacement of tube through cut down of tube and tube exchange using airway exchange catheter. The patient scheduled for high Le Fort I osteotomy and bilateral sagittal split osteot...

Although ϕX174 DNA pilot protein H is monomeric during procapsid assembly, it forms an oligomeric tube on the host cell surface. Reminiscent of a double-stranded DNA phage tail in form and function, the H tube transports the single-stranded ϕX174 genome across the Escherichia coli cell wall. The 2.4-Å resolution H-tube crystal structure suggests functional and energetic mechanisms that may be c...

We describe an inexpensive and efficient method for generating functional pools of Dicer-substrate small interfering RNAs (siRNAs) in a single reaction tube. The method exploits a highly active form of the enzyme Dicer from Giardia lamblia, which is capable of accurately processing double-stranded RNA (dsRNA) into 25-27 nt RNA pools during in vitro transcription. The small RNAs produced functio...

a 21-year old man with cervical spinal cord damage due to diving was admitted in the icu. tracheostomy was performed due to prolonged mechanical ventilation. left lung atelectasis happened frequently. because of the difficulty of bronchoscopy and failing of recruitment, using a double lumen, two tracheal tubes were guided into the left and right lungs through the tracheostomy stoma site. after ...

An accurate method for measuring the fast uptake of water into tablets was established. The method involved the use of a video camera to monitor the flow of liquid in the capillary tube of the water penetration apparatus. Measurements of water uptake could be made in as short an interval as 0.04 s from 0 s. The liquid penetration profiles show that there are three linear portions of the double ...

In pursuit of stable operation in thermal hydraulic engineering, this paper researches two-phase flow through tube bundles by the lattice Boltzmann method. The single-relaxation-time model and multicomponent, multiphase pseudo-potential are adopted. Specifically, past double-tandem circular cylinders, double-parallel in-line staggered with various spacing ratios is investigated. vortex variable...