Numerous techniques for optimal performance of an IEEE 802.11 WLAN have been investigated. These techniques make use of either power control or PHY (physical layer) rate control or both to achieve maximum throughput levels for the network at minimum power consumption. However most of these techniques are non-cooperative by definition. Here, we analyse cooperative and non-cooperative rate and po...

Ocimum plants are traditionally used to manage HIV/AIDS in various African countries. The effects of Ocimum labiatum extract on HIV-1 protease (PR) and reverse transcriptase (RT) is presented here along with characterization of an identified bioactive compound, achieved through ¹H- and 13C-NMR. The extract's effect on HIV-1 replication was assessed by HIV-1 p24 antigen capture. Cytotoxicity of ...

In this paper we present the complete methodology of expected effective SINR mapping (EESM) and mutual information effective SINR mapping (MIESM) based PHY abstraction for OpenAirInterface (OAI) LTE platform. The methodology consists of calibration of the ESM techniques using OAI link level simulator and then the validation of calibrated scheme on the OAI system level simulator. We present the ...

Link adaptation to dynamically select the data transmission rate at a given time has been recognized as an effective way to improve the goodput performance of the IEEE 802.11 wireless local-area networks (WLANs). Recently, with the introduction of the new high-speed 802.11a physical layer (PHY), it is even more important to have a well-designed link adaptation scheme work with the 802.11a PHY s...

The present study investigated the effect of P or phytase supplementation on the P-balance of dairy cows. 24 lactating German Holstein cows were used for a 5-weeks feeding trial and were allocated to three dietary treatments, P+MIN, P-MIN and P+PHY. All cows received a total mixed ration (TMR) composed of 63% corn silage and 37% concentrate on a dry matter (DM) basis for ad libitum intake. The ...

This document provides an initial PHY system proposal of a low frequency (Sub 11 GHz) wireless access PHY for point-to-multipoint voice, video and data applications. The submission is for consideration of the Task Group to develop a PHY standard for BWA system. Purpose This contribution will be presented and discussed within the Task Group in Session #10 for possible adoption as baseline for a ...

The effects of seasonal variations and the effects of acute hypothermia (8.0 degrees) and/or physostigmine (PHY) in different seasons have been studied on the tissue glycogen, cardiac acetylcholine (ACh) and blood sugar contents in frogs. Seasonal variations had no significant effect on cardiac cholinergic activity. However, cardiac ACh concentration was significantly reduced by hypothermia in ...

Physcion and chrysophanol induce defense responses against powdery mildew in cucumbers. The combination of these two compounds has synergistic interaction against the disease. We performed RNA-seq on cucumber leaf samples treated with physcion and chrysophanol alone and with their combination. We generated 17.6 Gb of high-quality sequencing data (∼2 Gb per sample) and catalogued the expressions...

We report a new measurement ofRb = ΓZo→bb/ΓZ0→hadrons using a double tag technique where the b selection is based on topological reconstruction of the mass of the B-decay vertex. The measurement was performed using a sample of 150k hadronic Z events collected with the SLD at the SLAC Linear Collider during the years 1993-1995. The method utilizes the 3-D vertexing abilities of the SLD CCD pixel...

he design of medium access control (MAC) protocols has traditionally been separated from that of the physical (PHY) layer. To a MAC protocol designer, the PHY layer is a black box satisfying the so-called collision model: when only one user transmits, the packet arrives at the receiving node error free. But when transmissions are simultaneous, packets are lost due to collision. Until recently, ...