In a previous study it was reported that whistlermode signals received at Faraday, Antarctica …65 S; 64 W† and Dunedin, New Zealand …46 S; 171 E† with entry regions in Paci®c longitudes (typically from the VLF transmitter NLK, Seattle, USA) showed an increase in transmission of wave energy as magnetic activity increased. However, signals with entry regions in Atlantic longitudes (typically from...

This study evaluates the pulsed tunable dye laser with wavelength 504 nm, frequency 10 Hz, and pulse width 1.2 microseconds for cholelitholysis. Power of 10-40 kW was directed through a 250-microns quartz fiber optic to ablate 55 gallstones (removed from 14 patients). The fiber was positioned in direct contact with the stones under saline. Power delivery was begun at 10 kW and increased in 10-k...

frontal sinus fractures are of surgical importance because of the microbial flora covering the frontal air sinus and it's proximity with the duramater and brain. there is an increased risk of meningitis when fracture of the posterior wall of the frontal sinus is associated with a dural tear. in this condition, communication occurs between the contaminated space of the air sinus and the int...

Ko, S. B. H., S. Naruse, M. Kitagawa, H. Ishiguro, M. Murakami, and T. Hayakawa. Arginine vasopressin inhibits fluid secretion in guinea pig pancreatic duct cells. Am. J. Physiol. 277 (Gastrointest. Liver Physiol. 40): G48–G54, 1999.—The effects of arginine vasopressin (AVP) on pancreatic ductal secretion were studied in guinea pigs. In the isolated vascularly perfused pancreas, AVP reduced sec...

Ducted propeller is a method on the modification which added duct/nozzle propeller. application aimed to increase thrust, efficiency, and decrease noise vibration. In this research, numerical simulation was conducted using ANSYS Fluent 2020 R2 with k-epsilon solver model. The aim of research analyze effect duct geometry Ld/D (duct length/duct diameter) ratio. done two variations at three differ...

Endoscopic bilateral stenting using conventional metal stents is considered to be technically difficult in patients with malignant hilar bile duct obstruction because the second stent is not easily inserted through the cell of the first stent wall in the bile duct [1]. A variety of new self-expandable metal stents (SEMS) specially designed for stent-in-stent procedures to facilitate bilateral s...

purpose: to determine long-term outcomes of probing in adult patients with nasolacrimal duct (nld) obstruction. methods: patients older than 20 years admitted in labaffinejad hospital with complete nasolacrimal duct obstruction were studied. the selected patients underwent probing under local anesthesia and cases with successful nld probing enrolled the study. patients were examined during the ...

background: transcatheter occlusion of the patent ductus arteriosus (pda) is a minimally invasive treatment. the appropriate device size is chosen based on the angiographic measurement of the pda . the current study aimed to assess the relationship between the transthoracic echocardiographic (tte) measurements of the pda prior to the occlusion procedure and the actual size of the deployed devic...

Acute renal injury induces metabolic acidosis, but its specific effects on the collecting duct, the primary site for urinary ammonia secretion, the primary component of net acid excretion, are incompletely understood. We induced ischemia-reperfusion (I/R) acute renal injury in Sprague-Dawley rats by clamping the renal pedicles bilaterally for 30 min followed by reperfusion for 6 h. Control rats...

OBJECTIVE To develop an efficient infusion technique for human spermatogonial stem cell transplantation. DESIGN A mixture with ultrasonic contrast, computerized tomography (CT) contrast, and Chinese ink was injected into isolated human testes through different sites (the rete testis, the head of the epididymis, the deferent duct, and blind testicular infusion). Ultrasound transducer was used ...