Radial frequency (RF) patterns, which are sinusoidal modulations of a radius in polar coordinates, are commonly used to study shape perception. Previous studies have argued that the detection of RF patterns is either achieved globally by a specialized global shape mechanism, or locally using as cue the maximum tangent orientation difference between the RF pattern and the circle. Here we challen...

whooping cough (pertussis) is a highly contagious disease of the human respiratory tract, which is caused by bordetella pertussis. reemerge of pertussis in some highly immunized populations and divergency in gene order among several b. pertussis strains promoted this research to study the change of pertussis toxin (pt) and lipopolysacharide levels in response to the different environments. this...

A new approach of flow modulation comprehensive two-dimensional gas chromatography-mass spectrometry (GC x GC-MS) with supersonic molecular beam (SMB) and a quadrupole mass analyzer is presented. Flow modulation uniquely enables GC x GC-MS to be achieved even with the limited scan speed of quadrupole MS, and its 20 ml/min column flow rate is handled, splitless, by the SMB interface. Flow modula...

Arriving at a good combination of coding and modulation schemes that can achieve error correction constitutes challenge in digital communication systems. In this work, we explore the permutation (PC) pulse amplitude (PAM) for mitigating channel errors presence background noise jitter. Since PAM is characterised with bi-polar constellations, Euclidean distance choice predicting performance such ...

The Mycobacterium tuberculosis Rv3409c gene is required for modulation of the Toll-like receptor 2 (TLR-2) signaling response in infected macrophages. Although each is annotated as encoding a cholesterol oxidase, neither Rv3409c nor its ortholog MSMEG1604 is required for the metabolism of cholesterol in mycobacteria. Here we report that a unique lipid, L1334, accumulates in a MSMEG1604 transpos...

We present optical and X-ray data of the Cataclysmic Variable RX0744{52 discovered using ROSAT by Motch et al. High resolution spectroscopy centred on the H line indicates a probable orbital period of 3.60 hrs. From its distance (obtained using polarimetry), its X-ray luminosity, its X-ray colour and its X-ray/UV+Opt ratio, we suggest that RX0744{52 is an new Intermediate Polar. The absence of ...

In this paper, a 7-level Diode Clamped Multilevel Inverter (DCMLI) is simulated with three different carrier PWM techniques. Here, Carrier based Sinusoidal Pulse Width Modulation (SPWM), Third Harmonic Injected Pulse Width Modulation (THIPWM) and Modified Carrier-Based Space Vector Pulse Width Modulation (SVPWM) are used as modulation strategies. These modulation strategies include Phase Dispos...

We present results from a temporal analysis of the longest and the most sensitive X-ray observations of TV Columbae – a cataclysmic variable classified as an intermediate polar. The observations were carried out with the RossiX − RayT imingExplorer(RXTE) Proportional Counter Array, ROSAT Position Sensitive Proportional Counter, and ASCA. Data were analyzed using a one-dimensional CLEAN and Baye...

Recent results regarding subpulse-drift in pulsar B0943+10 have led to the identification of a stable system of sub-beams circulating around the magnetic axis of the star. Here, we present single-pulse analysis of pulsar B0834+06 at 35 MHz, using observations from the Gauribidanur Radio Telescope. Certain signatures in the fluctuation spectra and correlations allow estimation of the circulation...