We introduce and report recent developments on a novel five port optoelectronic voltage controlled oscillator consisting of a resonant tunneling diode (RTD) optical-waveguide integrated with a laser diode. The RTD-based optoelectronic oscillator (OEO) has both optical and electrical input and output ports, with the fifth port allowing voltage control. The RTD-OEO locks to reference radio-freque...

Background In recent years, single-port video-assisted thoracoscopic surgery (VATS) for lobectomy in non-small cell lung cancer (NSCLC) patients has become increasingly common. The objective of this study was to compare the feasibility and safety of single-port and triple-port VATS lobectomy. Methods A total of 73 patients with NSCLC who underwent VATS lobectomy from December 2011 to August 2...

A four port network adder-subtractor module, for surface plasmon polariton (SPP) waves based on a ring resonator filter is proposed. The functionality of module is achieved by the phase difference manipulation of guided SPPs through different arms connected to the ring resonator. The module is designed using the concepts of a basic two-port device proposed in this paper. It is shown that two po...

BACKGROUND To investigate the effects of postoperative radiotherapy (PORT) on the survival of patients with resected stage IIIA-N2 non-small cell lung cancer (NSCLC). METHODS A total of 3,334 patients with resected stage IIIA-N2 NSCLC in 2004 to 2013 were identified in the Surveillance, Epidemiology, and End Results database and stratified according to use of PORT. Propensity score-matching (...

BACKGROUND/AIMS Since the first successful laparoscopic cholecystectomy with the establishment of pneumoperitoneum in France by Mouret in 1987, it has become the golden standard for cholecystectomy. Generally techniques with four trocars have been used with surgeons but some of them prefer 3-trocar techniques. Our aim is to compare the clinical outcomes of three- and four-port techniques prospe...

Introduction: In conventional Laparoscopic Appendicectomy, three ports are used wherein both the subumbilical and supra-pubic port sites are hidden the by the natural camouflages and the only visible scar is the third port in the iliac fossa. The third port scar can be made invisible by using a needle port for trans-parietal appendicular traction. Materials and Methods: From January 2013 to May...

Introduction Single-port laparoscopic surgery has some advantages, including improved cosmetic outcomes and minimized parietal trauma. However, pure single-port laparoscopic rectal cancer surgery is challenging because of the difficulties in creating triangulation and applying the laparoscopic staplers with sufficient distal margins in the narrow pelvic cavity. Recently, a reduced-port robotic ...

Testing two-port memories requires the use of single-port tests as well as special two-port tests; the test strategy determines which tests have to be used. Many two-port memories have ports which are read-only or write-only; this impacts the possible tests for single-port and two-port memories, as well as the test strategy. This paper discusses the consequences of the port restrictions (read-o...

Testing two-port memories requires the use of single-port tests as well as special two-port tests; the test strategy determines which tests to be used. Many two-port memories have ports which are read-only or write-only; this impacts the possible fault models, the tests for single-port and two-port memories, as well as the test strategy. This paper presents a test strategy for two-port memories...