Results 41 to 50 of about 43,453 (194)

A simple surgical mask modification to pass N95 respirator-equivalent fit testing standards during the COVID-19 pandemic.

open access: yesPLoS ONE, 2022
BackgroundThe COVID-19 pandemic has infected hundreds of millions of people resulting in millions of deaths worldwide. While N95 respirators remain the gold standard as personal protective equipment, they are resource-intensive to produce and obtain ...
Agnes Z Dardas   +7 more
doaj   +1 more source

Decontamination and Reuse of N95 Masks: A Narrative Review

open access: yesCanadian Journal of Infectious Diseases and Medical Microbiology, 2020
Background. The COVID-19 pandemic has presented an unprecedented strain on healthcare supplies. Currently there is a global shortage of personal protective equipment (PPE), especially N95 masks. In order to safeguard healthcare personnel in this critical
M. A. Khan   +5 more
doaj   +1 more source

The role of pattern electroretinograms and optical coherence tomography angiography in the diagnosis of normal-tension glaucoma

open access: yesScientific Reports, 2021
In this study, we investigated the correlation between pattern electroretinogram (PERG) and optical coherence tomography angiography (OCTA) parameters for diagnosis in patients with normal-tension glaucoma (NTG).
Sang Yeop Lee   +4 more
doaj   +1 more source

Physiological Effects of Using Surgical and N95 Facial Mask in Exercise in the Covid-19 Pandemic

open access: yesSpor Bilimleri Araştırmaları Dergisi, 2023
The purpose of this study is to compare the effects of using different masks on respiratory parameters such as maximum oxygen consumption (VO2max), oxygen saturation (SpO2), and running distance.
Zeynep Kutlu   +4 more
doaj   +1 more source

Reuse N95 v1

open access: yes, 2021
Laboratory Protocol Fit test procedure
openaire   +1 more source

An Empirical Equation for Rapid Validation of the Performance of Commercial N95 Equivalent Respirators

open access: yesKONA Powder and Particle Journal
The COVID-19 pandemic has underscored the importance of wearing effective facepiece filtering respirators (FFRs) to reduce infection and disease transmission.
Sheng-Chieh Chen   +4 more
doaj   +1 more source

Establishment of a fit prediction model of N95 respirator based on facial images

open access: yesEnvironmental Health and Preventive Medicine
Background: The protective effectiveness of an N95 respirator depends on the filtration efficiency of the material from which the N95 respirator is made of, as well as the wearers’ facial fit.
Guifang Wang   +4 more
doaj   +1 more source

Uzun süreli N95 (FFP2) maske kullanımının kan oksijen satürasyonuna ve diş hekimi konforuna etkisinin değerlendirilmesi

open access: yesActa Odontologica Turcica, 2022
Amaç: Bu çalışmanın amacı, COVID-19 pandemisi boyunca yapılan dental işlemlerde uzun süre N95 maske kullanımının, diş hekimlerinin oksijen satürasyon değerleri ve nabız atım hızları üzerindeki etkisini değerlendirmek ve kullanım boyunca oluşan subjektif ...
Gülsüm Ceylan, Faruk Emir
doaj   +1 more source

Estimate of the correlation signal between cosmic rays and BL Lacs in future data

open access: yes, 2005
The existing correlation between BL Lacertae objects (BL Lacs) and cosmic-ray events observed by HiRes experiment provide sufficient information to formulate quantitatively the hypothesis about the flux of neutral cosmic-ray particles originated from BL ...
Gorbunov, D. S.   +3 more
core   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi   +7 more
wiley   +1 more source

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