Results 11 to 20 of about 108,514 (272)

Treatment planning with a 2.5 MV photon beam for radiation therapy

open access: yesJournal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose The shallow depth of maximum dose and higher dose fall‐off gradient of a 2.5 MV beam along the central axis that is available for imaging on linear accelerators is investigated for treatment of shallow tumors and sparing the organs at risk (OARs) beyond it.
Navid Khaledi   +5 more
wiley   +1 more source

A potential biomarker of cognitive impairment: The olfactory dysfunction and its genes expression

open access: yesAnnals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1884-1897, December 2022., 2022
Abstract Objective Accumulation evidence has reported that olfactory impairment may be an essential clinical marker and predictor of mild cognitive impairment or Alzheimer's disease. Method Participants were enrolled in the population‐based, prospective study in Fuxin county, Liaoning province, China between 2019 and 2021.
Jiayi Song   +11 more
wiley   +1 more source

Inhalation and deposition of spherical and pollen particles after middle turbinate resection in a human nasal cavity [PDF]

open access: yesRespiratory Physiology & Neurobiology Volume 294, December 2021, 103769, 2021
Middle turbinate resection significantly alters the anatomy and redistributes the inhaled air. The superior half of the main nasal cavity is opened up, increasing accessibility to the region. This is expected to increase inhalation dosimetry to the region during exposure to airborne particles.
arxiv   +1 more source

Investigation on the nasal airflow characteristics of anterior nasal cavity stenosis

open access: yesBrazilian Journal of Medical and Biological Research, 2016
We used a computational fluid dynamics (CFD) model to study the inspiratory airflow profiles of patients with anterior nasal cavity stenosis who underwent curative surgery, by comparing pre- and postoperative airflow characteristics. Twenty patients with
T. Wang   +4 more
doaj   +1 more source

Intranasal Volume Changes Caused by the Endoscopic Endonasal Transsphenoidal Approach and Their Effects on Nasal Functions. [PDF]

open access: yesPLoS ONE, 2016
We evaluated postoperative changes in nasal cavity volume and their effects on nasal function and symptoms after endoscopic endonasal transsphenoidal approach for antero-central skull base surgery.Retrospective chart review at a tertiary referral center ...
Do Hyun Kim   +10 more
doaj   +1 more source

PEDV infection in neonatal piglets through the nasal cavity is mediated by subepithelial CD3+ T cells

open access: yesVeterinary Research, 2021
Porcine epidemic diarrhea virus (PEDV) primarily infects neonatal piglets causing catastrophic effects on the global pig farming industry. PEDV infects piglets through the nasal cavity, a process in which dendritic cells (DCs) play an important role ...
Chen Yuan   +5 more
doaj   +1 more source

Histological and anatomical structure of the nasal cavity of Bama minipigs. [PDF]

open access: yesPLoS ONE, 2017
OBJECTIVE:The nasal mucosa is equipped with abundant lymphatic tissues, serving as the first line of defense against invasion by microorganisms. In this study, we characterized the features of the nasal mucosa of Bama minipigs (Sus scrofa domestica) via ...
Jingjing Yang   +3 more
doaj   +1 more source

Hyperdentia in adult patient in the ENT practice

open access: yesНаука и инновации в медицине, 2021
According to the literature, such dentition anomaly as supernumerary teeth is more common in the practice of a dentist than of an otorhinolaryngologist. Clinical manifestations of this pathology in adults are less frequent than in children. Periodically,
Lyubov V. Fileva   +6 more
doaj   +1 more source

Efficacy of the exhalation delivery system with fluticasone in patients with chronic rhinosinusitis with nasal polyps whose symptoms recur after sinus surgery

open access: yesInternational Forum of Allergy &Rhinology, Volume 13, Issue 1, Page 31-41, January 2023., 2023
Abstract Background Sinus surgery removes inflamed tissue, restores airflow, and improves delivery of medication into surgically opened spaces. The exhalation delivery system with fluticasone (EDS‐FLU; XHANCE®) uses a novel delivery system to create closed‐palate, positive‐pressure, bidirectional mechanics that significantly alter the deposition of the
Randall A. Ow   +6 more
wiley   +1 more source

Nasal Flow Simulation Using Heat and Humidity Models

open access: yesJournal of Biomechanical Science and Engineering, 2010
The nasal cavity performs several important functions for the inhaled air, such as temperature and humidity adjustments. Although it is necessary to obtain velocity, temperature, and humidity distributions during inhalation in order to understand the ...
Kiyoshi KUMAHATA   +3 more
doaj   +1 more source

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