Results 101 to 110 of about 39,099 (266)

Three‐dimensional surface scanning of patients to extend computed tomography field of view and scan length for dose calculation and collision avoidance in radiotherapy treatment planning

open access: yesJournal of Applied Clinical Medical Physics, Volume 26, Issue 11, November 2025.
Abstract Background Radiotherapy treatment planning requires knowledge of a patient's anatomical surface for use in dose calculations, collision checks, or surface‐guided radiation therapy (SGRT). This information is usually obtained from a computed tomography (CT) scan which may encounter field‐of‐view (FOV) limitations or require additional radiation
Amanda M. Jackson   +2 more
wiley   +1 more source

Health shock and preference instability: assessing health-state dependency of willingness-to-pay for corrective eyeglasses

open access: yesHealth Economics Review, 2019
Background Differences in contingent valuation (CV) estimates for identical healthcare goods can cast considerable doubt on the true economic measures of consumer preferences.
Muhammed Nazmul Islam   +2 more
doaj   +1 more source

Eyeglass allergic contact dermatitis

open access: yesDermatology Online Journal, 2010
Allergic contact dermatitis is a common problem. The distribution of the eruption with which a patient presents is the key to identifying the offending agent. The ability to quickly recognize characteristic presentations of common allergens is valuable. We present a case of red plaques on the face.
Scott, Kimberly   +2 more
openaire   +4 more sources

Heat Sterilizable Coatings Based on Nafion and Graphene Quantum Dots With Advanced Antibacterial Performance

open access: yesNano Select, Volume 6, Issue 11, November 2025.
Electrostatically assembled layer‐by‐layer waterborne nanocoatings comprising negatively charged Nafion and positively charged imidazole modified‐graphene quantum dots can inhibit the growth of bacteria and can withstand dry heat sterilization without any decline in their activity.
Mohammed Suleman Beg   +6 more
wiley   +1 more source

Prevalence of myopia among secondary school students in Welkite town: South-Western Ethiopia

open access: yesBMC Ophthalmology, 2020
Background Refractive error, especially myopia, is the most common eye disorder in the world and a significant cause of correctable visual impairment. The aim of this study was to assess the prevalence of myopia among secondary school students in Welkite
Sara Abebaw Gessesse   +1 more
doaj   +1 more source

Static and Dynamic Balance Is Impaired in Patients With Long‐Term, Well‐Controlled Acromegaly: A Cross‐Sectional Study

open access: yesClinical Endocrinology, Volume 103, Issue 5, Page 703-710, November 2025.
ABSTRACT Objective Balance impairment is an underrecognized complication of acromegaly with potentially serious consequences for affected patients. In this study, we aimed to assess the balance in patients with long‐term acromegaly compared to non‐acromegalic controls. Design Cross‐sectional study.
Christian Rosendal   +4 more
wiley   +1 more source

Why the anonymous and everyday objects are important: using the Science Museum’s collections to re-write the history of vision aids

open access: yesScience Museum Group Journal, 2020
The history of nineteenth-century spectacles and eyeglasses is unusual in the extent to which it has incorporated objects and material evidence. However, both collectors and historians have favoured the pristine object or the object with noteworthy ...
Gemma Almond
doaj   +1 more source

Masking Strategies for Image Manifolds

open access: yes, 2016
We consider the problem of selecting an optimal mask for an image manifold, i.e., choosing a subset of the pixels of the image that preserves the manifold's geometric structure present in the original data.
Dadkhahi, Hamid, Duarte, Marco F.
core   +1 more source

Health Care for Veterans: Answers to Frequently Asked Questions [PDF]

open access: yes, 2015
The Veterans Health Administration (VHA), within the Department of Veterans Affairs (VA), operates the nation’s largest integrated direct health care delivery system, provides care to approximately 6.6 million unique veteran patients, and employs more ...
Panangala, Sidath Viranga
core   +4 more sources

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