J
James P. Butler
Researcher at Harvard University
Publications - 324
Citations - 26460
James P. Butler is an academic researcher from Harvard University. The author has contributed to research in topics: Lung volumes & Obstructive sleep apnea. The author has an hindex of 74, co-authored 321 publications receiving 24090 citations. Previous affiliations of James P. Butler include Tohoku University & Brigham and Women's Hospital.
Papers
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Journal ArticleDOI
Geometric hysteresis in pulmonary surface-to-volume ratio during tidal breathing
TL;DR: Findings suggest that during normal tidal breathing, stress hysteresis in ductal tissue is larger than septal stress hyesteresis (septal tissue plus surface tension) and the effect of methacholine on tissue in the septa is greater than the corresponding effect inductal tissue.
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Nanoparticle delivery in infant lungs
Manuela Semmler-Behnke,Wolfgang G. Kreyling,Holger Schulz,Shinji Takenaka,James P. Butler,F. S. Henry,Akira Tsuda +6 more
TL;DR: It is shown that nanoparticle deposition in postnatally developing lungs peaks at the end of bulk alveolation, consistent with the emerging theory that as alveoli form through secondary septation, alveolar flow becomes chaotic and chaotic mixing kicks in, significantly enhancing particle deposition.
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Effects of alveolated duct structure on aerosol kinetics. II. Gravitational sedimentation and inertial impaction.
TL;DR: The structure of the alveolar duct has an important role in gravitational sedimentation and inertial impaction in the lung acinus, and Lagrangian description of particle dynamics in an alveolated duct flow was developed.
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Unidirectional pulmonary airflow patterns in the savannah monitor lizard
TL;DR: If unidirectional airflow is plesiomorphic for Diapsida, this respiratory character can be reconstructed for extinct diapsids, and evolved in a small ectothermic tetrapod during the Palaeozoic era at least a hundred million years before the origin of birds.
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Intracellular pressure is a motive force for cell motion in Amoeba proteus
TL;DR: The cortical filament layer of free-living amoebae contains concentrated actomyosin, suggesting that it can contract and produce an internal hydrostatic pressure, and this P(ic) is utilized to overcome the viscous flow resistance of the intracellular contents during pseudopod formation.