Motivated by the huge data transmission capacity required for multimedia communications, passive optical network (PON) based on fiber-to-the-home (FTTH) is considered an emerging access network technology to solve the last mile problem of communications. A typical PON system is basically a point-to-multipoint (PtMP) optical network with no active elements in the signal path. Based on TDMA, this...

The aims of the present study were to evaluate oxidative status, by investigating the serum Paraoxonase/Arylesterase (PON/ARE) activities along with conjugated dienes in patients with IBS and controls and to confirm the link between oxidative stress and IBS. Thirty IBS patient and 30 healthy subjects were recruited. Total serum cholesterol, low-density lipoprotein (LDL), high-density lipoprotei...

The aim of this study was to determine interspecies and gender differences in the lipid metabolism and hemolymph oxidation stability in intermoult period of the European spider crab (M. squinado), the warty crab (E. verrucosa) and the European spiny lobster (P. elephas). In hemolymph samples activities of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and paraoxonase 1 (PON 1), as ...

The ongoing ocean acidification associated with a changing carbonate system may impose profound effects on marine planktonic calcifiers. Here, we show that a coccolithophore, Gephyrocapsa oceanica, evolved in response to an elevated CO2 concentration of 1000 μatm (pH reduced to 7.8) in a long-term (∼670 generations) selection experiment. The high CO2 -selected cells showed increases in photosyn...

We have designed and analyze the effects using Manchester format for the downstream signal on the performance of upstream transmission using a RSOA based WDM PON system. WDM PON is a current technology for next generation passive optical networks. The simulation setup is made using different sources and receivers for WDM PON. The performance is done using Manchester modulation technique for 100...

Alongside the spread of the Internet in recent years, high-speed data transmission services for subscriber networks (access networks) have taken root in a real way. This has been accompanied by a growth in fibre-optic communications networks. Fig. 1 illustrates an optical communications network. The core DWDM (Dense Wavelength Division Multiplexing) optical network is connected to LANs (Local A...

BACKGROUND Type 2 diabetic patients are faced with a higher risk of dyslipidemia and cardiovascular disorders. This study was undertaken to assess the effect of consumption of 1 cup cranberry juice by type 2 diabetic patients on serum paraoxonase-1 (PON-1) activity, apoA-1, apoB, glucose, and Lp(a). METHODS In a double-blind randomized clinical trial, 58 type 2 diabetic male patients were ran...

A passive optical network (PON) system is required to accommodate multi-services represented by fifth/sixth (5G/6G) mobile communication systems. While maintaining low cost, meet these requirements (which are high capacity, latency, and reliability), the PON must a large number of units (ONUs). The use power-domain non-orthogonal multiple access (PD-NOMA) for has been studied increase accommoda...