Results 91 to 100 of about 3,403,950 (370)

Extraction of Pulmonary Airway in CT Scans Using Deep Fully Convolutional Networks [PDF]

open access: yesarXiv, 2022
Accurate, automatic and complete extraction of pulmonary airway in medical images plays an important role in analyzing thoracic CT volumes such as lung cancer detection, chronic obstructive pulmonary disease (COPD), and bronchoscopic-assisted surgery navigation.
arxiv  

A cause of excessive daytime sleepiness. The upper airway resistance syndrome.

open access: yesChest, 1993
Subjects with isolated complaints of chronic daytime sleepiness are usually classified as "idiopathic hypersomniacs" and treated symptomatically. A group of these subjects was investigated during nocturnal sleep and daytime naps.
C. Guilleminault   +4 more
semanticscholar   +1 more source

Dimethyl Itaconate Alleviates Escherichia coli‐Induced Endometritis Through the Guanosine‐CXCL14 Axis via Increasing the Abundance of norank_f_Muribaculaceae

open access: yesAdvanced Science, EarlyView.
The research findings indicate that dimethyl itaconate (DI) alleviates Escherichia coli (E. coli) induced endometritis by modulating the gut microbiota and enriching the abundance of norank_f_Muribaculaceae, thereby increasing the production of guanosine.
Yuhang He   +6 more
wiley   +1 more source

Evaluation of Internal Nasal Valve Using Computed Tomography After Le Fort I Osteotomy: A Cross-Sectional Study from a Tertiary Center

open access: yesHaseki Tıp Bülteni, 2021
Aim:Internal nasal valve, which has been the most resistant region of the nasal airway, is affected by Le Fort I osteotomy. This study aimed to investigate the changes in the internal nasal valve (INV) after Le Fort I osteotomy.Methods:A retrospective ...
Emrah Dilaver   +4 more
doaj   +1 more source

Awake measures of nasal resistance and upper airway resistance on CPAP during sleep.

open access: yesJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2011
STUDY OBJECTIVES Since on CPAP, the nose is the primary determinant of upper airway resistance, we assess utility of noninvasive measures of nasal resistance during wakefulness as a predictor of directly assessed upper airway resistance on CPAP during ...
M. Masdeu   +4 more
semanticscholar   +1 more source

Annexin A3 Represses Endothelial Permeability and Inflammation During Sepsis via Actin Cytoskeleton Modulation

open access: yesAdvanced Science, EarlyView.
Annexin A3 (ANXA3) plays an endogenous protective role in endothelial dysfunction in sepsis by stabilizing the actin cytoskeleton, modulating cell permeability, and inhibiting pATF2/CD62E inflammatory signaling. Abstract Increased endothelial permeability and a dysregulated inflammatory response play key roles in organ damage in sepsis.
Manyu Xing   +4 more
wiley   +1 more source

Correlation between Subjective Nasal Patency and Intranasal Airflow Distribution [PDF]

open access: yes, 2017
Objectives (1) Analyze the relationship between intranasal airflow distribution and subjective nasal patency in healthy and nasal airway obstruction (NAO) cohorts using computational fluid dynamics (CFD).
Borojeni, Azadeh A.T,   +4 more
core   +1 more source

A poroelastic model coupled to a fluid network with applications in lung modelling

open access: yes, 2015
Here we develop a lung ventilation model, based a continuum poroelastic representation of lung parenchyma and a 0D airway tree flow model. For the poroelastic approximation we design and implement a lowest order stabilised finite element method.
Berger, Lorenz   +5 more
core   +1 more source

Noninvasive estimation of pharyngeal airway resistance and compliance in children based on volume-gated dynamic MRI and computational fluid dynamics.

open access: yesJournal of applied physiology, 2011
Computational fluid dynamics (CFD) analysis was used to model the effect of collapsing airway geometry on internal pressure and velocity in the pharyngeal airway of three sedated children with obstructive sleep apnea syndrome (OSAS) and three control ...
Steven C. Persak   +4 more
semanticscholar   +1 more source

AI‐Driven TENGs for Self‐Powered Smart Sensors and Intelligent Devices

open access: yesAdvanced Science, EarlyView.
Triboelectric nanogenerators (TENGs) enable sustainable energy harvesting and self‐powered sensing but face challenges in material optimization, fabrication, and stability. Integrating artificial intelligence (AI) enhances TENG performance through machine learning, improving energy output, adaptability, and predictive maintenance.
Aiswarya Baburaj   +4 more
wiley   +1 more source

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