Results 131 to 140 of about 2,865,323 (310)

VLBI measurements for time and frequency transfer (from the EFTF forum, 2008)

, 2008
Modern cold-atom-based frequency standards have already archived the uncertainty of 10-15at a few days. Moreover cold-atom-based optical clocks have the potential to realize the uncertainty of from 10-16 to 10-17 level after a few hours.
Ichikawa, R, Hosokawa, M, Koyama, Y, Hobiger, T, Takiguchi, H, Ishii, A, Gotoh, T   +6 more
core  

Landscapes of time-frequency analysis

, 2019
The chapters in this volume are based on talks given at the inaugural Aspects of Time-Frequency Analysis conference held in Turin, Italy from July 5-7, 2018, which brought together experts in harmonic analysis and its applications.
Feichtinger, Hans, Gosson, Maurice, Nicola, Fabio, Paolo Boggiatto, Elena Cordero, Maurice de Gosson, Hans Feichtinger, Fabio Nicola, Alessandro Oliaro, Anita Tabacco, Boggiatto, Paolo, Cordero, Elena, Oliaro, Alessandro, de Gosson, Maurice, Tabacco, Anita Maria, Tabacco, Anita, Feichtinger, Han   +10 more
core   +1 more source

High-Resolution Time-Frequency Methods' Performance Analysis

EURASIP Journal on Advances in Signal Processing, 2010
This work evaluates the performance of high-resolution quadratic time-frequency distributions (TFDs) including the ones obtained by the reassignment method, the optimal radially Gaussian kernel method, the t-f autoregressive moving-average spectral ...
Ahmad Khan Adnan, Kashif FaisalMahmood, Bashir Sajid, Shafi Imran, Ahmad Jamil, Shah SyedIsmail, Ikram AtaulAziz   +6 more
doaj  

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Signal enhancement by time-frequency peak filtering

, 2003
Time-frequency peak filtering (TFPF) allows the reconstruction of signals from observations corrupted by additive noise by encoding the noisy signal as the instantaneous frequency (IF) of a frequency modulated (FM) analytic signal.
Boashash, Boualem, Boashash, B., Mesbah, M., Mesbah, Mostefa   +3 more
core   +1 more source

Network Traffic Analysis Using Time-Frequency Representations [PDF]

Journal of Electrical and Electronics Engineering
This paper presents some results obtained with time-frequency representations used to identify and analyze network traffic anomalies. The detected anomalies were represented by an increase in certain type of network traffic that was captured using a ...
REIZ Romulus, GORDAN Cornelia, BURCA Adrian   +2 more
doaj  

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

Molecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel, Peyman Zarrineh, Nathnael T. Tuffa, Jigar H. Sheth, Sumitra Mohan, Mudassar Iqbal, Sankari Nagarajan   +6 more
wiley   +1 more source

Generalized time-frequency coherency for assessing neural interactions in electrophysiological recordings

, 2011
Time-frequency coherence has been widely used to quantify statistical dependencies in bivariate data and has proven to be vital for the study of neural interactions in electrophysiological recordings.
Andreas Daffertshofer, Michael Breakspear, Tjeerd Boonstra, Saeid Mehrkanoon, Michael Breakspear, Tjeerd W. Boonstra   +5 more
core   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

Molecular Oncology, EarlyView.
Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

Molecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson, Lyanne Delgado‐Coka, Natalia Marchenko, Luisa F. Escobar‐Hoyos, Kenneth R. Shroyer, Alisa Yurovsky, Trey Ideker, Gábor Balázsi, Thomas MacCarthy, Scott Powers   +9 more
wiley   +1 more source