Results 21 to 30 of about 1,678,713 (260)
Purinergic signalling in systemic sclerosis
Rheumatology, 2021 Abstract SSc is a chronic autoimmune rheumatic disease that involves numerous organs and presents major management challenges. The histopathologic hallmarks of SSc include vasculopathy, fibrosis and autoimmune phenomena involving both innate and adaptive immune systems.
Höppner, Jakob +6 more
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Compression System for the Phonocardiographic Signal [PDF]
2007 International Conference on Field Programmable Logic and Applications, 2007 An FPGA-based approach is proposed for implementing a compression system developed specifically for the signal of phonocardiogram. The compression method offers better rate and distorsion than standard audio compression techniques. Both the algorithm and the details on the solutions adopted for its implementation are presented in this paper.
Legaz Cano, A. +4 more
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The Signals And Systems Concept Inventory [PDF]
2002 Annual Conference Proceedings, 2005 The signal processing community needs quantitative standardized tools to assess student learning in order to improve teaching methods and satisfy accreditation requirements. The Signals and Systems Concept Inventory (SSCI) is a 25-question multiple-choice exam designed to measure students' understanding of fundamental concepts taught in standard ...
Kathleen E. Wage +3 more
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Leptin modulates nutrient reward via inhibitory galanin action on orexin neurons
Molecular Metabolism, 2015 Objective: Leptin modulates food reward via central leptin receptor (LepRb) expressing neurons. Food reward requires stimulation of midbrain dopamine neurons and is modulated by central leptin action, but the exact central mechanisms remain unclear ...
Amanda Laque +10 more
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The Ubiquitin System and Jasmonate Signaling [PDF]
Plants, 2016 The ubiquitin (Ub) system is involved in most, if not all, biological processes in eukaryotes. The major specificity determinants of this system are the E3 ligases, which bind and ubiquitinate specific sets of proteins and are thereby responsible for target recruitment to the proteasome or other cellular processing machineries.
Astrid Nagels Durand +2 more
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Systems theory of Smad signalling [PDF]
IEE Proceedings - Systems Biology, 2006 Transforming Growth Factor-beta (TGF-beta) signalling is an important regulator of cellular growth and differentiation. The principal intracellular mediators of TGF-beta signalling are the Smad proteins, which upon TGF-beta stimulation accumulate in the nucleus and regulate transcription of target genes.
Clarke, D. C., Betterton, M. D., Liu, X.
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Molecular Metabolism, 2014 Objective: Leptin responsive neurons play an important role in energy homeostasis, controlling specific autonomic, behavioral, and neuroendocrine functions.
Kavon Rezai-Zadeh +8 more
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Content in Simple Signalling Systems [PDF]
The British Journal for the Philosophy of Science, 2018 Our understanding of communication and its evolution has advanced significantly through the study of simple models involving interacting senders and receivers of signals. Many theorists have thought that the resources of mathematical information theory are all that are needed to capture the meaning or content that is being communicated in these systems.
Shea, N, Godfrey-Smith, P, Cao, R
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Modularity in signaling systems [PDF]
Physical Biology, 2012 Modularity is a property by which the behavior of a system does not change upon interconnection. It is crucial for understanding the behavior of a complex system from the behavior of the composing subsystems. Whether modularity holds in biology is an intriguing and largely debated question.
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