Results 71 to 80 of about 2,792 (271)

Correlation of the differential expression of PIK3R1 and its spliced variant, p55α, in pan‐cancer

Molecular Oncology, EarlyView.
PIK3R1 undergoes alternative splicing to generate the isoforms, p85α and p55α. By combining large patient datasets with laboratory experiments, we show that PIK3R1 spliced variants shape cancer behavior. While tumors lose the protective p85α isoform, p55α is overexpressed, changes linked to poorer survival and more pronounced in African American ...
Ishita Gupta, Yang Song, Madeleine Ndahayo, Anirudh Saxena, Theresa Guo, Dylan Z. Kelley, Jessica Gore, Andrew Hennigan, Alexa Anderson, John C. Papadimitriou, Daria A. Gaykalova   +10 more
wiley   +1 more source

Comparison of DC linear and non-linear models for multi-terminal VSC HVDC networks

The Journal of Engineering, 2019
The analysis and control design of multi-terminal VSC-HVDC systems requires a linearised model of these inherently non-linear systems. This paper develops such a model, from converter to multi-terminal system, discusses the key concepts and shows its use
Jesus Carmona-Sanchez, Ognjen Marjanovic, Mike Barnes, Wenyuan Wang   +3 more
doaj   +1 more source

A versatile all-channel stimulator for electrode arrays, with real-time control [PDF]

, 2004
Over the last few decades, technology to record through ever increasing numbers of electrodes has become available to electrophysiologists. For the study of distributed neural processing, however, the ability to stimulate through equal numbers of ...
Potter, Steve M., Wagenaar, Daniel A.
core   +1 more source

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

Transient stability analysis of virtual synchronous generator with current saturation by multiple Lyapunov functions method

IET Generation, Transmission & Distribution
This paper demonstrates that the switching of one grid‐connected virtual synchronous generator (VSG) between two control modes, namely constant voltage control (CVC) and current limiting control (CLC) happens at the derived two switching lines.
Yujun Li, Jingrui Liu, Yonghui Liu, Songhao Yang, Zhengchun Du   +4 more
doaj   +1 more source

Self-organising technique for carrier synchronisation and phase offset distribution in modular, fault-tolerant converters

The Journal of Engineering, 2019
Carrier interleaved pulse width modulated modular multilevel converters provide multiple benefits including increased effective switching frequency, switching frequency harmonic elimination, and reduced filter requirements. For converters comprising high
Mark A. H. Broadmeadow, Kenneth D. Sands
doaj   +1 more source

Digital radio over fibre for future broadband wireless access network solution [PDF]

, 2010
Copyright @ 2010 IEEEDigital systems are more flexible and environment-process-tolerant than analogue systems. They are more reliable and robust against cross-talk, interference and channel noises, and are capable of covering higher dynamic range than ...
Abdollahi, SR, Al-Raweshidy, H, Mehdi Fakhraie, S, Nilavalan, R   +3 more
core   +1 more source

Colorectal cancer‐derived FGF19 is a metabolically active serum biomarker that exerts enteroendocrine effects on mouse liver

Molecular Oncology, EarlyView.
Meta‐transcriptome analysis identified FGF19 as a peptide enteroendocrine hormone associated with colorectal cancer prognosis. In vivo xenograft models showed release of FGF19 into the blood at levels that correlated with tumor volumes. Tumoral‐FGF19 altered murine liver metabolism through FGFR4, thereby reducing bile acid synthesis and increasing ...
Jordan M. Beardsley, Michael W. Rohr, Joseph A. Goode, Sai Preethi Nakkina, Jignesh G. Parikh, Deborah A. Altomare   +5 more
wiley   +1 more source

Grid integration and a power quality assessment of a wave-energy park

IET Smart Grid, 2019
This study presents a step toward the grid connection of a wave-energy park through an electric power conversion system (EPCS) developed and installed for the wave-energy harvesting in Lysekil, Sweden.
Arvind Parwal, Martin Fregelius, Jennifer Leijon, Maria Chatzigiannakou, Olle Svensson, Olle Svensson, Erland Strömstedt, Irina Temiz, Janaina Goncalves de Oliveira, Cecilia Boström, Mats Leijon   +10 more
doaj   +1 more source

NASA Proof-of-Concept 1-W(sub e) Stirling Convertor Development for Small Radioisotope Power Systems [PDF]

Low power Stirling convertors are being developed at NASA Glenn Research Center to provide future small spacecraft with electrical power by converting heat from one or more Light Weight Radioisotope Heater Units (LWRHU).
Casciani, Michael R., Goodell, Daniel D., Schifer, Nicholas A., Wilson, Scott D.   +3 more
core   +1 more source