Results 291 to 300 of about 269,803 (346)

Deposition of Inhaled Particles in Lungs

Nature, 1969
Davies and Muir1 and Dennis2 have reviewed the differences existing in experimental results relating particle size and deposition in the human lung. Data from six independent studies spanning 25 yr fell into two ranges, three groups of workers obtaining much higher values for deposition than the other three for particles greater than 0.5 microns in ...
W J, Vaughan, B E, Vaughan
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Lung aerosol deposition in suckling infants

Archives of Disease in Childhood, 2012
Aerosol therapy in infants may be greatly compromised by face mask rejection due to squirming and crying. Lung aerosol deposition in crying infants may thereby be greatly reduced. Since 'suckling' on a pacifier calms infants, they should more readily accept a face mask that incorporates a pacifier.
Israel, Amirav, Anthony, Luder, Aidah, Chleechel, Michael T, Newhouse, Miguel, Gorenberg   +4 more
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Abnormal Deposition of Radiostrontium in Lungs

Chest, 1972
A report of unusual deposition of radiostrontium in the lungs is presented. There was clear visualization of both lungs. The possible mechanism is mentioned. The observation may further stimulate investigators to find the exact reason for this.
Tapan K. Chaudhuri, Tuhin K. Chaudhuri, Mark I. Muilenburg, James H. Christie   +3 more
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Deposition of Charged Particles on Lung Airways

Health Physics, 1998
The effect of a single electric charge on the efficiency with which ultrafine particles deposit in human airways has been investigated. When inhaled short-lived radon progeny are attached to electrically neutral particles their deposition efficiency is controlled by diffusion. But most ambient particles carry one, or a few, charges.
B S, Cohen, J Q, Xiong, C P, Fang, W, Li
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Guiding Aerosol Deposition in the Lung

New England Journal of Medicine, 2008
A model of targeted drug delivery to the lung uses magnetized droplets and a magnetic field.
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Deposition of Inhaled Particles in the Lungs

Archivos de Bronconeumología (English Edition), 2012
Inhaled medication is the first-line treatment of diseases such as asthma or chronic obstructive pulmonary disease. Its effectiveness is related to the amount of drug deposited beyond the oropharyngeal region, the place where the deposit occurs and its distribution (uniform or not).
Ana, Fernández Tena, Pere, Casan Clarà
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Dynamics of ’Technegas’ deposited in the lung

Nuclear Medicine Communications, 2001
In tomographic Technegas ventilation studies, the deposited aerosol should be stable. The aim of this study was to investigate the stability of deposited Technegas in severely obstructed patients and in healthy volunteers. Six emphysematous patients and five healthy volunteers were studied. Anterioposterior (AP) and posterioanterior (PA) dynamic images
J H, Xu, M, Moonen, A, Johansson, B, Bake   +3 more
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Inhaled aerosols: lung deposition and clinical applications

Clinical Physics and Physiological Measurement, 1982
Although aerosol deposition in the lungs is often considered in the context of industrial hygiene, aerosols also play an important clinical role. Three principal mechanisms (inertial impaction, gravitational sedimentation and Brownian diffusion) account for the majority of aerosol deposition in the lungs. Deposition depends upon the mode of inhalation,
S P, Newman, J E, Agnew, D, Pavia, S W, Clarke   +3 more
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Deposition of Inhaled Particles in Human Lungs

Nature, 1966
DURING the past 25 years, six independent groups of workers have measured the decrease in concentration of particles in exhaled air during steady breathing, while their subjects inhaled various aerosols, and have expressed their findings as a relationship between particle size and lung deposition. These results fall into two ranges, three of the groups
C N, Davies, D C, Muir
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Lung Deposition of Droplet Aerosols in Monkeys

Inhalation Toxicology, 2008
Nonhuman primates are often the animal models of choice to study the infectivity and therapy of inhaled infectious agents. Most animal models for inhaled infectious diseases use aerosol/droplets generated by an atomization technique such as a Collison nebulizer that produces particles in the size range of 1 to 3 microm in diameter.
Y S, Cheng, H, Irshad, P, Kuehl, T D, Holmes, R, Sherwood, C H, Hobbs   +5 more
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