نتایج جستجو برای: facemask

تعداد نتایج: 606  

Journal: :Journal of Shahid Sadoughi University of Medical Sciences 2021

2013
Carmen Ka Man Wong Benjamin Hon Kei Yip Stewart Mercer Sian Griffiths Kenny Kung Martin Chi-sang Wong Josette Chor Samuel Yeung-shan Wong

BACKGROUND There is limited evidence to support the use of facemasks in preventing infection for primary care professionals. Negative effects on communication has been suggested when the physician wears a facemask. As communication skills and doctor patient relationship are essential to primary care consultations, the effects of doctor's facemask wearing were explored. METHOD A randomised con...

Journal: :Chest 1975
D Powner J V Snyder A Grenvik

Self-limited noncardiogenic interstitial pulmonary edema probably reflecting altered permeability of the pulmonary capillary membrane is reported in a patient being treated for severe diabetic ketoacidosis. The possible etiology, associated findings, and therapy with continuous positive airway pressure (CPAP) by facemask are discussed.

Journal: :Seminars in orthodontics 1997
P W Ngan U Hagg C Yiu S H Wei

The purpose of this article is to summarize the short-term and long-term results of the authors' clinical prospective study on the treatment of Class III malocclusion using the protraction facemask. An attempt is made to answer questions pertaining to this treatment modality. Twenty patients with skeletal Class III malocclusion were treated consecutively with maxillary expansion and a protracti...

Journal: :Aerosol and Air Quality Research 2021

The SARS-CoV-2 pandemic resulted in shortages of production and test capacity FFP2-respirators. Such facemasks are required to be worn by healthcare professionals when performing aerosol-generating procedures on COVID-19 patients. In response the high demand short supply, we designed three models that suitable for local production. As these should meet requirements an FFP2-certified facemask, n...

Journal: :Journal of the Egyptian Society of Tribology (Print) 2021

Journal: :Health 2021

The World Health Association and many governmental agencies recommend the wearing of facemasks by general public to prevent spread COVID-19. It is believed that masks can significantly protect others may offer some protection wearer. Although there are standards for FFRs, surgical masks, recently barrier face coverings, they all indicate level However, testing facial not at point inhalation, bu...

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