Nasal epithelium lies on the basement membrane, situated on the lamina propria. Pseudostratified columnar (respiratory) epithelium is composed of four major types of cells: ciliated cells, nonciliate cells, goblet cells and basal cells, ensuring mucus production and transport, resorption of surface materials, and formation of new epithelial cells. Lamina propria consists of two layers of seromu...

The bearings of a flywheel energy storage system (FESS) are critical machine elements, as they determine several important properties such self-discharge, service life, maintenance intervals and most importantly cost. This paper describes the design low-cost, low-loss bearing for 5 kWh/100 kW FESS based on analytical, numerical experimental methods. special operating conditions rotor (e.g., hig...

BACKGROUND This study aimed to investigate the efficacy and safety of 3 nasal packing products (silicone tube, Beschitin-F, and Aquacel1-Ag) after functional endoscopic sinus surgery (FESS) for chronic rhinosinusitis (CRS) patients in China. MATERIAL AND METHODS Sixty-six CRS patients undergoing FESS surgery were randomly divided into 3 groups (22 patients in each group): the silicone tube grou...

Force enhancement (FE) associated with lengthening is a well-accepted phenomenon of active skeletal muscle, but the underlying mechanism(s) remain unknown. Similar to force depression (FD) following active shortening, the mechanism of FE may be attributed, at least in part, to cross-bridge kinetics. To examine this relationship, a post hoc analysis was performed on the transient force relaxatio...

Background: We have noticed a high incidence of postoperative agitation (POA) following functional endoscopic sinus surgery (FESS), we reviewed our anesthesia protocol and designed this study. The present study investigated the possible contributing factors in the development of POA in adults, by avoiding these factors postoperative agitation can

OBJECTIVES This study was conducted to evaluate the effect of tranexamic acid (TA) on the intra-operative bleeding during the functional endoscopic sinus surgery (FESS) in children. METHODS A total of 100 children recruited to undergo FESS were randomized into two groups. Group I: Was given just after induction, intra-venous 25 mg/kg TA diluted in 10 ml of normal saline. Group II: Was given 1...

INTRODUCTION The concept of functional endoscopic sinus surgery (FESS) was established by Stammberger in 1986. When FESS is performed, the first encountered anatomical structure in the sinonasal tract is the uncinate process. Resection of the uncinate process is one of the important procedures in FESS, because the natural ostium of the maxillary sinus is located behind this process in most pati...