Results 101 to 110 of about 414,824 (295)

Endoscopic dacryocystorhinostomy to treat congenital nasolacrimal canal dysplasia: a retrospective analysis in 40 children

open access: yesBMC Ophthalmology, 2019
Background To investigate the therapeutic effectiveness and safety of endoscopic dacryocystorhinostomy (EN-DCR) to treat congenital nasolacrimal canal dysplasia (CNCD). Methods Forty children (50 eyes) with congenital nasolacrimal duct obstruction (CNLDO)
Yan-Hui Cui   +6 more
doaj   +1 more source

Acute dacryocystitis: two cases reports [PDF]

open access: yes, 2011
The adult lacrimal obstruction can be congenital or acquired. In the case of the acquired form, the etiology classifies in not-specific (it involves the coating epithelium and/or the vascular plexus submucosae of the lacrimal duct) and specific ...
Lorena, Silvia Helena Tavares   +1 more
core   +2 more sources

Evaluation of the endocranial anatomy of the early Paleogene north African gavialoid crocodylian Argochampsa krebsi and evolutionary implications for adaptation to salinity tolerance in marine crocodyliforms

open access: yesJournal of Anatomy, Volume 246, Issue 6, Page 974-986, June 2025.
Abstract Argochampsa krebsi is a gavialoid crocodylian from the early Paleogene of North Africa. Based on its recovered phylogenetic relationship with South American species, it has been inferred to have been capable of transoceanic dispersal, but potential anatomical correlates for a marine lifestyle have yet to be identified.
Carly C. Pligersdorffer   +2 more
wiley   +1 more source

Inertial migration in dilute and semi-dilute suspensions of rigid particles in laminar square duct flow [PDF]

open access: yesarXiv, 2017
We study the inertial migration of finite-size neutrally buoyant spherical particles in dilute and semi-dilute suspensions in laminar square duct flow. We perform several direct numerical simulations using an immersed boundary method to investigate the effects of the bulk Reynolds number $Re_b$, particle Reynolds number $Re_p$ and duct to particle size
arxiv  

Adenocarcinoma of the lacrimal gland: a case report

open access: yesJournal of Medical Case Reports, 2017
Background Primary ductal adenocarcinomas of the lacrimal gland are very rare. This neoplasm shares some histological and immunohistochemical similarities with salivary duct carcinoma.
Asmae Touil   +5 more
doaj   +1 more source

Chronic dacryocystitis and its ayurvedic management

open access: yesMedical Journal of Dr. D.Y. Patil Vidyapeeth, 2020
Chronic dacryocystitis is a chronic infection of the lacrimal sac. In chronic dacryocystitis, there is obstruction of the nasolacrimal duct at the junction of lacrimal sac followed by stasis in the lacrimal sac, causing watering and discharge from the ...
Sangita Odhabhai Kamaliya   +2 more
doaj   +1 more source

Wild Japanese Marten, Martes melampus melampus (Carnivora: Mustelidae), Is a New Host for Zoonotic Thelazia callipaeda Eyeworm

open access: yesEcology and Evolution, Volume 15, Issue 5, May 2025.
Wild Japanese martens serve as a natural host for Thelazia callipaeda, contributing to its transmission in the sylvatic cycle. ABSTRACT Thelazia callipaeda is a spirurid nematode that parasitizes the eyes of mammals, including carnivores, lagomorphs, and humans.
Toshihiro Tokiwa   +2 more
wiley   +1 more source

Uniqueness of Transonic Shock Solutions in a Duct for Steady Potential Flow [PDF]

open access: yesarXiv, 2008
We study the uniqueness of solutions with a transonic shock in a duct in a class of transonic shock solutions, which are not necessarily small perturbations of the background solution, for steady potential flow. We prove that, for given uniform supersonic upstream flow in a straight duct, there exists a unique uniform pressure at the exit of the duct ...
arxiv  

Inertial particle focusing in fluid flow through spiral ducts: dynamics, tipping phenomena and particle separation [PDF]

open access: yesJ. Fluid Mech. 990 (2024) A13
Small finite-size particles suspended in fluid flow through an enclosed curved duct can focus to points or periodic orbits in the two-dimensional duct cross-section. This particle focusing is due to a balance between inertial lift forces arising from axial flow and drag forces arising from cross-sectional vortices.
arxiv   +1 more source

Pathological, immunohistochemical and microbiologicalal analysis of lacrimal sac biopsies in patients with chronic dacrocystitis

open access: yesInternational Journal of Ophthalmology, 2013
AIM:To analyze cases of obstruction of the nasolacrimal duct which creates a fertile environment for secondary bacterial infection and can result in dacryocystitis,which is a constant threat to cornea and orbital soft tissue and a potential source of ...
Rowayda Mahmoud Amin   +4 more
doaj   +1 more source

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