THE TERN[ "HEMORRHOID" iS derived f rom the Greek (haima blood; rhoos = flowing) and was first used by Hippocrates in his treatises.n 2 T h e word "pile" (Latin pila, a ball) was used in the writings of John Arderne. 3 Hemorrhoids, which are varicosities of the hemorrhoidal veins, may be internal or external. In ternal hemorrhoids occupy the submucous space proximal to the dentate line. T h e l...

The internal integration, game, and sustainable development of Shenzhen Port play key roles in developing a synergy mechanism among Guangdong-Hong Kong-Macau Greater Bay Area (GBA) ports. Using logistics model, parameter estimation evolutionary analysis were performed, revealing that it requires new impetus to promote growth its container throughput. Based on the population ecology theory, two-...

Central venous access devices are extensively used for long-term chemotherapy and parenteral nutrition. However, there are some possible immediate, early, and late complications related to the implantation technique, care, and maintenance. We present the uncommon occurrence of a thrombosis of the internal jugular vein due to a spontaneous migration of a Port-A-Cath catheter into the ipsilateral...

BACKGROUND : In November 2005, a new automated distal anastomotic device (C-Port) for coronary artery bypass grafting (CABG) was cleared by the FDA for use in the United States. This study represents a prospective evaluation of our early experience using the device with graft patency assessment determined by 64 slice multidetector row computed tomography angiography (64CT). MATERIALS AND METH...

Rationale: Laparoscopic adrenalectomy is currently the standard of care for adrenal lesion. Minimal invasive laparoscopic surgery such as laparoendoscopic single site surgery (LESS) and natural orifice transluminal endoscopic surgery (NOTES) have been developed to improve cosmetic outcomes and reduce postoperative pain. However, there are still some problems related to instruments and port limi...

We propose a generalized S-Parameter analysis for transmission lines with linear/nonlinear load terminations subject to arbitrary plane wave and port excitations. S-parameters are prevalently used to model transmission lines such as cable bundles and interconnects on printed circuit boards subject to port excitations. The conventional S-parameter approach is well suited to characterize interact...

In order to simplify the device of modulation and demodulation of 2FSK, a 2FSK modem based on the microcontroller AT89C51 was designed. This modem is mainly composed of an AT89C51 microcontroller, a simple two order passive low-pass filter, and a shaping circuit. Modulation is achieved on the basis of the principle of pulse width modulation (PWM). By executing PWM signal generating program, a d...

AbstractBackground: In recent years, laparoscopic sleeve gastrectomy (LSG) has become more acceptable for obese patients. Single-port sleeve gastrectomy (SPSG) is more popular since each abdominal incision carries the risk of bleeding, hernia, and internal organ injury as well as exponentially affecting cosmesis. This cross-sectional study aimed at comparing multi-port sleeve gastrectomy (MPSG)...