Results 21 to 30 of about 36,055 (210)

Multi-wavelength SPAD photoplethysmography for cardio-respiratory monitoring

Frontiers in Physics, 2023
There is a growing interest in photoplethysmography (PPG) for the continuous monitoring of cardio-respiratory signals by portable instrumentation aimed at the early diagnosis of cardiovascular diseases. In this context, it is conceivable that PPG sensors
Iris Cusini, Riccardo Rinaldi, Paolo Castiglioni, Paolo Castiglioni, Andrea Faini, Andrea Faini, Federica Villa   +6 more
doaj   +1 more source

Computational physiological models for individualised mechanical ventilation: a systematic literature review focussing on quality, availability, and clinical readiness

Critical Care, 2023
Background Individualised optimisation of mechanical ventilation (MV) remains cumbersome in modern intensive care medicine. Computerised, model-based support systems could help in tailoring MV settings to the complex interactions between MV and the ...
R. S. P. Warnaar, M. P. Mulder, L. Fresiello, A. D. Cornet, L. M. A. Heunks, D. W. Donker, E. Oppersma   +6 more
doaj   +1 more source

Effects of transcutaneous electrical diaphragmatic stimulation on the cardiac autonomic balance in healthy individuals: a randomized clinical trial

Fisioterapia e Pesquisa, 2016
The transcutaneous electrical diaphragmatic stimulation (TEDS) is a technique of respiratory muscle activation that affects breathing pattern and rhythm.
Luana Godinho Maynard, André Sales Barreto, Valter Joviniano Santana-Filho, Manoel Luiz de Cerqueira Neto, Daniel Penteado Martins Dias, Walderi Monteiro da Silva-Júnior   +5 more
doaj   +1 more source

Development of Nanoparticle Adaptation Phenomena in Acinetobacter baumannii: Physiological Change and Defense Response

Microbiology Spectrum, 2023
The present work describes the evolution of a resistance phenotype to a multitargeting antimicrobial agent, namely, silver nanoparticles (nanosilver; NAg), in the globally prevalent bacterial pathogen Acinetobacter baumannii.
Oliver McNeilly, Riti Mann, Max Laurence Cummins, Steven P. Djordjevic, Mehrad Hamidian, Cindy Gunawan   +5 more
doaj   +1 more source

The Effect of Low-Frequency Physiological Correction on the Reproducibility and Specificity of Resting-State fMRI Metrics: Functional Connectivity, ALFF, and ReHo

Frontiers in Neuroscience, 2017
The resting-state fMRI (rs-fMRI) signal is affected by a variety of low-frequency physiological phenomena, including variations in cardiac-rate (CRV), respiratory-volume (RVT), and end-tidal CO2 (PETCO2). While these effects have become better understood
Ali M. Golestani, Jonathan B. Kwinta, Jonathan B. Kwinta, Yasha B. Khatamian, J. Jean Chen, J. Jean Chen   +5 more
doaj   +1 more source

Investigation of non-uniform airflow signal oscillation during high frequency chest compression

BioMedical Engineering OnLine, 2005
Background High frequency chest compression (HFCC) is a useful and popular therapy for clearing bronchial airways of excessive or thicker mucus. Our observation of respiratory airflow of a subject during use of HFCC showed the airflow oscillation by HFCC
Lee Jongwon, Lee Yong W, Warwick Warren J, Sohn Kiwon, Holte James E   +4 more
doaj   +1 more source

Sound symbolism, speech expressivity and crossmodality

Signifiances (Signifying), 2020
The direct links existing between sound and meaning which characterize sound symbolism can be thought of as mainly related to two kinds of phenomena: sound iconicity and sound metaphors. The first refers to the mirror relations established between sound
Madureira Sandra, Mario Augusto de Souza Fontes, Zuleica Camargo   +2 more
doaj   +1 more source

Novel Mechanical Strain Characterization of Ventilated ex vivo Porcine and Murine Lung using Digital Image Correlation

Frontiers in Physiology, 2020
Respiratory illnesses, such as bronchitis, emphysema, asthma, and COVID-19, substantially remodel lung tissue, deteriorate function, and culminate in a compromised breathing ability. Yet, the structural mechanics of the lung is significantly understudied.
Crystal A. Mariano, Samaneh Sattari, Mohammad Maghsoudi-Ganjeh, Mehrzad Tartibi, David D. Lo, David D. Lo, Mona Eskandari, Mona Eskandari, Mona Eskandari   +8 more
doaj   +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

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