Results 11 to 20 of about 385,836 (215)

Face masks and respirators: Towards sustainable materials and technologies to overcome the shortcomings and challenges

open access: yesNano Select, 2022
The unprecedented threat of COVID‐19 and the likelihood of other emerging infectious diseases have accentuated the need for sustainable and effective masks and respirators (MAR).
Shovon Bhattacharjee   +4 more
doaj   +1 more source

Comparative analysis of the chosen properties of filtrating type protective masks [PDF]

open access: yesHemijska Industrija, 2014
The results of comparative experimental testing of different filtrating type masks are presented in this study. Some of the most important functional properties have been tested on available models of Italian, French, British, Canadian, Swiss ...
Rajić Dušan S.   +6 more
doaj   +1 more source

A Miniaturized Electrostatic Precipitator Respirator Effectively Removes Ambient SARS-CoV-2 Bioaerosols

open access: yesViruses, 2022
The inhalation of ambient SARS-CoV-2-containing bioaerosols leads to infection and pandemic airborne transmission in susceptible populations. Filter-based respirators effectively reduce exposure but complicate normal respiration through breathing zone ...
Rachel K. Redmann   +6 more
doaj   +1 more source

SETD4 Confers Cancer Stem Cell Chemoresistance in Nonsmall Cell Lung Cancer Patients via the Epigenetic Regulation of Cellular Quiescence

open access: yesStem Cells International, 2023
Increasing evidence indicates that quiescent cancer stem cells (CSCs) are a root cause of chemoresistance. SET domain-containing protein 4 (SETD4) epigenetically regulates cell quiescence in breast cancer stem cells (BCSCs), and SETD4-positive BCSCs are ...
Yuehong Wang   +6 more
doaj   +1 more source

Methodology for evaluating the level of respiratory protection of masks and respirators against particles similar to those that transmit SARS-CoV-2

open access: yesRevista Peruana de Medicina Experimental y Salud Pública, 2021
Objective: To develop a methodology for evaluating the level of respiratory protection provided by respirators, surgical masks and community face masks used by the Peruvian population; protection was evaluated against particles of a size similar to those
Manuel Chavez-Ruiz   +3 more
doaj   +1 more source

Association of change in air quality with hospital admission for acute exacerbation of chronic obstructive pulmonary disease in Guangdong, China: A province-wide ecological study

open access: yesEcotoxicology and Environmental Safety, 2021
Aims: To assess possible effect of air quality improvements, we investigated the temporal change in hospital admissions for acute exacerbations of chronic obstructive pulmonary disease (AECOPD) associated with pollutant concentrations.
Zihui Wang   +25 more
doaj   +1 more source

Some groups of Toll-like receptor gene polymorphisms and their clinical and pathogenetic manifestations in children with bronchial asthma

open access: yesМедицинская иммунология, 2020
The prevalence of bronchial asthma has shown its steady increase in the world in recent years. Despite all the achievements of Allergology, control of the disease can be achieved only in two-thirds of patients even if all social risk factors and the ...
E. N. Suprun   +4 more
doaj   +1 more source

Primary prevention: exposure reduction, skin exposure and respiratory protection [PDF]

open access: yesEuropean Respiratory Review, 2012
Interventions for the primary prevention of occupational asthma have been reported in the medical literature, understanding the effectiveness of these efforts could help future interventions.
D. Heederik   +2 more
doaj  

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

Recurrent respiratory infection protection in children: can we do anything more?

open access: yesМедицинский совет, 2020
На XIV научно-практической конференции  «Совершенствование  педиатрической  практики: от простого к сложному» была затронута актуальная тема профилактики и лечения рецидивирующих респираторно-вирусных заболеваний  у детей раннего возраста.
article Editorial
doaj   +1 more source

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