Results 71 to 80 of about 512,105 (392)

Hydrogel‐Impregnated Robust Interlocking Nano Connector (HiRINC) for Noninvasive Anti‐Migration of Esophageal Stent

open access: yesAdvanced Materials, EarlyView.
The development of hydrogel‐impregnated robust interlocking nano connector (HiRINC) aims to address stent migration by improving tissue adhesion and reducing mechanical mismatch in self‐expandable metallic stents (SEMSs). The network‐like porous layer of HiRINC enhances adhesion and energy dissipation, demonstrates through ex vivo and in vivo tests ...
Eunyoung Jeon   +8 more
wiley   +1 more source

A low-cost, helmet-based, non-invasive ventilator for COVID-19 [PDF]

open access: yesarXiv, 2020
Coronavirus disease 2019 (COVID-19) has created an unprecedented need for breathing assistance devices. Since the demand for commercial, full-featured ventilators is far higher than the supply capacity, many rapid-response ventilators are being developed for invasive mechanical ventilation of patients.
arxiv  

Structure and position-aware graph neural network for airway labeling [PDF]

open access: yesarXiv, 2022
We present a novel graph-based approach for labeling the anatomical branches of a given airway tree segmentation. The proposed method formulates airway labeling as a branch classification problem in the airway tree graph, where branch features are extracted using convolutional neural networks (CNN) and enriched using graph neural networks.
arxiv  

Ammonia Dynamics in the Human Body: Insights in Biomedical Sensing Technologies

open access: yesAdvanced Sensor Research, EarlyView.
Ammonia (NH3) is a significant biomarker in diagnostics, affecting the respiratory system, stomach, liver, kidneys, bladder, and gastrointestinal tract. NH3 detection, using sensors, has the potential to improve medical diagnosis. This review examines recent advancements in NH3 sensing technologies and explores future research directions, including ...
Annelot Nijkoops   +8 more
wiley   +1 more source

Bilirubin Targeting WNK1 to Alleviate NLRP3‐Mediated Neuroinflammation

open access: yesAdvanced Science, EarlyView.
At physiological concentrations, bilirubin binds to the kinase domain of WNK1, thereby augmenting its activity and facilitating the phosphorylation of downstream SPAK/OSR1. This phosphorylation inhibits KCC2 activity, leading to elevate intracellular chloride levels in neurons.
Linfei Mao   +14 more
wiley   +1 more source

Effect of topical corticosteroids on nasal patency after acute positive airway pressure exposure

open access: yesBrazilian Journal of Otorhinolaryngology, 2021
Introduction: Nasal congestion and obstruction are reported in the majority of continuous positive airway pressure users and are frequently cited as reasons for noncompliance.
Leonardo Balsalobre   +3 more
doaj  

Determinants for adherence to continuous positive airway pressure therapy in obstructive sleep apnea

open access: yesPLoS ONE, 2017
Background Continuous positive airway pressure (CPAP) therapy is an efficacious treatment for patients diagnosed with obstructive sleep apnea (OSA). However, there are only few data on long-term adherence.
Anne Roed Jacobsen   +7 more
semanticscholar   +1 more source

Theoretical open-loop model of respiratory mechanics in the extremely preterm infant [PDF]

open access: yes, 2018
Non-invasive ventilation is increasingly used for respiratory support in preterm infants, and is associated with a lower risk of chronic lung disease. However, this mode is often not successful in the extremely preterm infant in part due to their markedly increased chest wall compliance that does not provide enough structure against which the forces of
arxiv   +1 more source

LTSP: Long-Term Slice Propagation for Accurate Airway Segmentation [PDF]

open access: yesarXiv, 2022
Purpose: Bronchoscopic intervention is a widely-used clinical technique for pulmonary diseases, which requires an accurate and topological complete airway map for its localization and guidance. The airway map could be extracted from chest computed tomography (CT) scans automatically by airway segmentation methods. Due to the complex tree-like structure
arxiv  

Pressure Loss and Sound Generated In a Miniature Pig Airway Tree Model [PDF]

open access: yesJournal of Applied Biotechnology & Bioengineering 3 (2017) 00086, 2017
Background: Pulmonary auscultation is a common tool for diagnosing various respiratory diseases. Previous studies have documented many details of pulmonary sounds in humans. However, information on sound generation and pressure loss inside animal airways is scarce.
arxiv   +1 more source

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