Search results for "Masks"
showing 10 items of 49 documents
Counterfeit filtering facepiece respirators are posing an additional risk to health care workers during COVID-19 pandemic.
2020
High efficacy of face masks explained by characteristic regimes of airborne SARS-CoV-2 virus abundance
2021
Abstract Airborne transmission is an important transmission pathway for viruses, including SARS-CoV-2. Regions with a higher proportion of people wearing masks show better control of COVID-19, but the effectiveness of masks is still under debate due to their limited and variable efficiencies in removing respiratory particles. Here, we analyze experimental data and perform model calculations to show that this contrast can be explained by the different regimes of abundance of particles and viruses. Because of the large number of particles exhaled during human respiration and vocalization, indoor environments are usually in a particle-rich regime which means that masks cannot prevent the inhal…
Triple-target stimuli-responsive anti-COVID-19 face mask with physiological virus-inactivating agents
2021
Conventional face masks to prevent SARS-CoV-2 transmission are mostly based on a passive filtration principle. Ideally, anti-COVID-19 masks should protect the carrier not only by size exclusion of virus aerosol particles, but also be able to capture and destroy or inactivate the virus. Here we present the proof-of-concept of a filter mat for such a mask, which actively attracts aerosol droplets and kills the virus. The electrospun mats are made of polycaprolactone (PCL) a hydrophilic, functionalizable and biodegradable polyester, into which inorganic polyphosphate (polyP) a physiological biocompatible, biodegradable and antivirally active polymer (chain length, ∼40 Pi units) has been integr…
¿Está todo dicho sobre la vía aérea difícil? Otros enfoques son posibles
2009
Behind the mask: Rethinking the use of face masks while exercising
2021
there is an ongoing global effort against COVID-19 pan-demic. As vaccination is applied globally (predominantly onat-risk populations), various measures such as temporaryself-quarantine, social distancing, increased hand hygiene,and wearing a face mask (FM) proposed by the World HealthOrganization (WHO) and various governments worldwide arestill in place as primary means of preventing further dissemi-nation. In many instances, wearing a FM became mandatorywhen a person is in a closed space while being accompa-nied by others. Many individuals are therefore apprehensivein terms of maintaining their usual physical activity rout-ines and staying safe in the midst of the outbreak. Asa result, it…
Modification of face masks with zeolite imidazolate framework-8
2022
The worldwide spread of the SARS-CoV-2 virus has continued to accelerate, putting a considerable burden on public health, safety, and the global economy. Taking into consideration that the main route of virus transmission is via respiratory particles, the face mask represents a simple and efficient barrier between potentially infected and healthy individuals, thus reducing transmissibility per contact by reducing transmission of infected respiratory particles. However, long-term usage of a face mask leads to the accumulation of significant amounts of different pathogens and viruses onto the surface of the mask and can result in dangerous bacterial and viral co-infections. Zeolite imidazolat…
The Exponential Rise of Teledentistry and Patient-Oriented Protective Measures in Southeast Asian Dental Clinics: Concerns, Benefits, and Challenges
2021
In the Southeast Asian region, various policies have been advocated by health regulatory bodies that entail protective measures such as face masks, gloves, maintaining distance in public areas, and more. These protective measures are aimed at helping reverse the growth rate of the coronavirus. Dentists in this region have incorporated several changes to their practices to help minimize risks of person-to-person transmission inside dental offices. This narrative review aimed to provide an in-depth overview of the current situation in the Southeast Asian region regarding the use of teledentistry during the pandemic. Teledentistry involves the transfer of patient information across remote dist…
Anestesisykepleieres metoder for å kontrollere cufftrykk – en observasjonsstudie
2021
Bakgrunn: Forskning viser at pasienter i generell anestesi som har fått sine luftveier sikret med en larynxmaske eller en endotrakealtube opplever postoperative pharyngolaryngeale komplikasjoner. Et kontrollert cufftrykk har vist reduksjon i komplikasjoner.
 Hensikt: Hensikten med studien var å undersøke hvilke metoder anestesisykepleiere bruker for å kontrollere cufftrykk, og hvilke begrunnelser de har for å bruke cufftrykkmanometer.
 Metode: Totalt 45 anestesisykepleiere ble observert når de kontrollerte cufftrykket i en endotrakealtube og en larynxmaske. Anestesisykepleierne ble i tillegg spurt om hvilke begrunnelser de hadde for å bruke eller ikke bruke cufftrykkmanometer.�…
"Ludzka krotochwila" na scenie teatru świata w twórczości Mikołaja Reja i Marcina Bielskiego
2019
Artykuł jest próbą interpretacji dzieł Mikołaja Reja i Marcina Bielskiego w kategoriach encyklopedycznego teatru. Taka konstrukcja stanowi odwzorowanie obrazu ówczesnego świata. Można mówić o zgodności między uczonymi treściami a wielką machiną theatrum mundi, którego struktury, relacje i zakres sprawnie funkcjonują w zamkniętym dyskursie literackich utworów. „Krotochwila ludzka” staje się więc miejscem zmagań człowieka z własnymi słabościami i losem. Staropolscy pisarze, aby zilustrować tę walkę, posłużyli się popularnym w renesansie mitem o bogini Kirke i jej ofiarach zamienionych w zwierzęta. Maski faunistyczne stanowiły znakomite alegorie występków ludzkich, chociaż mogły również przeds…
Masks and carnivals in contemporary Sardinia
2020
The carnival occupies an important place in Sardinia, and attracts the attention of scholars with its continuously renewed meanings and functions. Furthermore, the institution of carnival is one of the cultural traits that has most oriented enhancement, research, re-proposal, revitalization of spontaneous groups and cultural associations: local traditions are re-learned and reworked along with specific identities and new forms of expression. In this sense, we can speak of new carnivals; cultural heritage in new economic and social contexts. In other words: today’s representations and masks refer to an alleged tradition to respond to contemporary needs and requests. In the case of Sardinian …