Results 11 to 20 of about 2,812,061 (302)

A Comparative Study of Endoscopic versus Microscopic Cartilage Type I Tympanoplasty

open access: yesInternational Archives of Otorhinolaryngology, 2020
Introduction The use of endoscope is rapidly increasing in otological and neuro-otological surgery in the last 2 decades. Middle ear surgeries, including tympanoplasty, have increasingly utilized endoscopes as an adjunct to or as a replacement for the ...
Dipesh Shakya, Arun KC, Ajit Nepal
doaj   +1 more source

Foldscope as an Innovative Teaching Tool

open access: yesEducation Sciences, 2022
This study deals with the descriptive analysis of the opinion of a pilot group of students at the University of Salamanca about the use of an innovative origami microscope: the Foldscope.
Carlos Hernández-Pérez   +1 more
doaj   +1 more source

Microvascular anastomosis in a challenging setting using a 4 K three-dimensional exoscope compared with a conventional microscope: An in vivo animal study

open access: yesFrontiers in Surgery, 2022
BackgroundThree-dimensional (3D) exoscope systems have been developed and are reported to be adequate alternatives to the conventional microscope. This study aimed to evaluate the feasibility and effectivity of microvascular anastomosis using a 4 K 3D ...
Zhiping Zhang   +13 more
doaj   +1 more source

A $q$-microscope for supercongruences [PDF]

open access: yes, 2019
By examining asymptotic behavior of certain infinite basic ($q$-) hypergeometric sums at roots of unity (that is, at a "$q$-microscopic" level) we prove polynomial congruences for their truncations. The latter reduce to non-trivial (super)congruences for
Guo, Victor J. W., Zudilin, Wadim
core   +9 more sources

Microscopic thymoma [PDF]

open access: yesInteractive CardioVascular and Thoracic Surgery, 2006
Microscopic thymoma was first described in 1976 and remains in the latest WHO classification (2004). It defines an epithelial proliferation, with
Lara, Chalabreysse   +3 more
openaire   +2 more sources

Polymerized LB films imaged with a combined atomic force microscope-fluorescence microscope [PDF]

open access: yes, 1992
The first results obtained with a new stand-alone atomic force microscope (AFM) integrated with a standard Zeiss optical fluorescence microscope are presented.
Gaub, Hermann E.   +3 more
core   +2 more sources

Comparison of Neuroendoscopic and Microscopic Surgery for Unilateral Hemilaminectomy: Experience of a Single Institution

open access: yesFrontiers in Surgery, 2022
ObjectiveThis study was designed to compare the safety and efficacy of unilateral hemilaminectomy conducted under complete neuroendoscopic visualization (UHNV) relative to unilateral hemilaminectomy under total microscopic visualization (UHMV) for the ...
Wei Zeng   +6 more
doaj   +1 more source

Surgical aspects using an exoscope for corpus callosotomy: initial experience for epilepsy surgery [PDF]

open access: yesJournal of Integrative Neuroscience, 2022
The exoscope is a new form of optic device that has begun to be used in the last decade. The exoscope provides high-quality magnification and illumination at depth, allowing easy manipulation of surgical instruments even in narrow surgical fields ...
Kyoichi Tomoto   +3 more
doaj   +1 more source

Design of a scanning tunneling microscope for electrochemical applications [PDF]

open access: yes, 1988
A design for a scanning tunneling microscope that is well suited for electrochemical investigations is presented. The construction of the microscope ensures that only the tunneling tip and the sample participate in electrochemical reactions.
Dovek, Moris M.   +4 more
core   +1 more source

Multi-Instrument Assessment of Phytoplankton Abundance and Cell Sizes in Mono-Specific Laboratory Cultures and Whole Plankton Community Composition in the North Atlantic

open access: yesFrontiers in Marine Science, 2020
The abundance and size distribution of plankton in the surface ocean are key metrics to understanding primary and export production, food web dynamics, and the optical properties of the water column.
Susanne Menden-Deuer   +9 more
doaj   +1 more source

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