Results 51 to 60 of about 16,240 (205)

Prevalence and Risk Factors for Obstructive Sleep Apnea in São Paulo: Findings From the 4th Edition of the EPISONO Study

open access: yesJournal of Sleep Research, Volume 35, Issue 3, June 2026.
ABSTRACT Obstructive sleep apnea (OSA) affects around 936 million individuals worldwide, making it the most prevalent breathing‐related sleep disorder. The aim was to estimate the prevalence of OSA in São Paulo, Brazil, based on data from the São Paulo Epidemiologic Sleep Study (EPISONO) 4th edition.
Sergio Tufik   +3 more
wiley   +1 more source

Annular objective apertures improve resolution of electron microscopes [PDF]

open access: yes, 1972
Hollow-cone illumination techniques, using an annular objective aperture located behind back focal plane of objective lens, increase image contrast and minimize chromatic ...
Heinemann, K., Poppa, H. R.
core   +1 more source

Variations on Negative Stain Electron Microscopy Methods: Tools for Tackling Challenging Systems. [PDF]

open access: yes, 2018
Negative stain electron microscopy (EM) allows relatively simple and quick observation of macromolecules and macromolecular complexes through the use of contrast enhancing stain reagent. Although limited in resolution to a maximum of ~18 - 20 Å, negative
Fuller, MJG   +3 more
core   +1 more source

Caustic Collodion [PDF]

open access: yesThe American Journal of the Medical Sciences
n ...
openaire   +2 more sources

The preservation, storage, and handling of black-and-white photographic records [PDF]

open access: yes, 1991
The subject of this article is the preservation of processed blackand- white photographic records in libraries. Since silver gelatin photographic films and papers have been around for about a century, and since by far the largest number of black-and ...
Hendriks, Klaus B.
core  

INTRANASAL COLLODION DRESSINGS. [PDF]

open access: yesJournal of the American Medical Association, 1908
Since I demonstrated this method1at the annual session of the American Medical Association, 1905, I have made a little improvement which is a small step toward the entire prevention of postoperative hemorrhages after intranasal operations. In 1905 I reported 233 operations; in six cases I had to resort to packing.
openaire   +1 more source

Engineering the 3′‐UTR of Tobacco Vein Mottling Virus to Confer Cross‐Protection Against Potyviruses

open access: yesMolecular Plant Pathology, Volume 27, Issue 5, May 2026.
The 3′‐untranslated region (3′‐UTR) and its secondary structure of virus genomic RNA of tobacco vein mottling virus (TVMV) are important in symptoms attenuation, which can be engineered for cross‐protection against further viral infection. We provide experimental evidence that supports the roles of 3′‐UTR in potyvirus infection.
Haijuan Wang   +5 more
wiley   +1 more source

Method accurately measures mean particle diameters of monodisperse polystyrene latexes [PDF]

open access: yes, 1967
Photomicrographic method determines mean particle diameters of monodisperse polystyrene latexes. Many diameters are measured simultaneously by measuring row lengths of particles in a triangular array at a glass-oil interface.
Kubitschek, H. E.
core   +1 more source

Compensatory Interplay Between Clarin‐1 and Clarin‐2 Deafness‐Associated Proteins Governs Phenotypic Variability in Hearing

open access: yesAdvanced Science, Volume 13, Issue 20, 9 April 2026.
Functional compensation between clarin‐1 and clarin‐2 in cochlear hair cells. Hearing loss associated with CLRN1 mutations shows striking phenotypic variability; however, the underlying mechanisms remain poorly understood. This study reveals that clarin‐1 and clarin‐2 function cooperatively in cochlear hair cells to sustain mechanoelectrical ...
Maureen Wentling   +17 more
wiley   +1 more source

Модернизация химической очистки отходов производства лаковых коллоксилинов

open access: yesХимическая безопасность
Проведено исследование процесса химической очистки отходов производства лаковых коллоксилинов, а именно, так называемого, ловушечного коллоксилина (ЛОК).
Супырев, А.В.   +4 more
doaj   +1 more source

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