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Pilot tone aided measurements to extend the bandwidth of radio frequency applications
(Elsevier B.V., 2016)
A technique to extend the effective measurement bandwidth of a non-coherent vector receiver is presented. This bandwidth extension technique relies on the use of a pilot signal (known a priori), which is added on the signal ...
The chloride anion as a signalling effector
(Wiley Blackwell Publishing, Inc, 2019-10)
The specific role of the chloride anion (Cl−) as a signalling effector or second messenger has been increasingly recognized in recent years. It could represent a key factor in the regulation of cellular homeostasis. Changes ...
Measuring complexity of biomedical signals
(John Wiley & Sons Inc, 2018-09)
It is well known that biomedical signals, such as heart rate variability (HRV), electrocardiogram (ECG), electroencephalogram (EEG), and voice, arise from complex nonlinear dynamical systems, as the cardiovascular, nervous, ...
SLAM and CD31: signaling molecules involved in cytokine secretion during the development of innate and adaptive immune responses
(Elsevier, 2007-02)
Immune cells are modulated through the crosslinking of receptors named “immunoreceptors”. Ligation of immunoreceptors by their ligands induces a tyrosine-phosphorylation signal that is essential for cell activation or ...
Demodulation of complex baseband radar signals for the analysis of multiple narrow spectral lines
(American Geophysical Union, 1997-03)
This paper proposes a technique for processing signals in which the relevant spectral feature consists of one or more narrow lines which have a nonzero Doppler shift with respect to the reference frequency. The proposed ...
A New Algorithm to Score Apnea/Hypopnea Events based on Respiratory Effort Signal and Oximeter Sensors
(Institute of Biomedical Engineering, 2020-08)
Purpose: The aim of this work is to develop and evaluate a new algorithm for the detection of Apnea/Hypopnea events based on the AASM recommendations, with low computational cost and using alternative sensors, such as the ...
cAMP-PKA signal transduction specificity in Saccharomyces cerevisiae
(Springer, 2020-09)
Living cells have developed a set of complex signaling responses, which allow them to withstand different environmental challenges. Signaling pathways enable the cell to monitor external and internal states and to articulate ...
Female mate choice by chemical signals in a semi-terrestrial crab
(Elsevier Science, 2014-05)
Information about the roles of both sexes in pair formation is required to better understand the mechanisms involved in sexual selection. Mate choice could depend on the courtship behavior, involving chemical, tactile and ...
A novel time stamping data acquisition system using a digital oscilloscope for single counting photons
(Institute of Electrical and Electronics Engineers Inc., 2017-12)
In this paper we present an algorithm of signal processing that allows the use of a PC-based oscilloscope in order to count events with a time stamping register. This novel application has a direct use on recording of ...