Academic literature on the topic 'Pores of Kohn'

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Journal articles on the topic "Pores of Kohn"

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Ng, Calvin SH, Rainbow WH Lau, Kelvin KW Lau, Malcolm J. Underwood, and Anthony PC Yim. "Defeating the pores of Kohn." Asian Cardiovascular and Thoracic Annals 22, no. 1 (January 2014): 102–4. http://dx.doi.org/10.1177/0218492312474454.

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Bastacky, J., and J. Goerke. "Pores of Kohn are filled in normal lungs: low-temperature scanning electron microscopy." Journal of Applied Physiology 73, no. 1 (July 1, 1992): 88–95. http://dx.doi.org/10.1152/jappl.1992.73.1.88.

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Interalveolar pores of Kohn, small uniform-sized epithelium-lined openings in alveolar walls of normal lung, have historically been demonstrated with electron-microscopic techniques that remove water. We show these pores to be present but almost invariably filled with material when water and surfactant are preserved in frozen hydrated lung examined with low-temperature scanning electron microscopy. In the normal mouse, 16 open empty pores per alveolus were found in instillation-fixed dried lung vs. less than 1 per alveolus in frozen hydrated lungs (P less than 0.001). In the normal rat, 13 por
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Lu, De-fu, Charles Stanley, German Nunez, and David Frazer. "A Mathematical Description of Pressures in Alveolar Pores of Kohn." Journal of Biomechanical Engineering 113, no. 1 (February 1, 1991): 104–7. http://dx.doi.org/10.1115/1.2894075.

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Small interalveolar holes within the lung are called pores of Kohn. Some researchers have correlated enlarged pore size with diseases, e.g. emphysema, that are characterized by tissue destruction. Mathematical models of the pressures generated in closed, fluid-filled and open, fluid-lined pores demonstrate that pressures capable of rupturing lung tissue can be developed in a pore due to the surface tension and shape of the air-liquid interface. Pore enlargement accompanied by tissue destruction is presented as a possible mechanism for the disease process observed during aging and the developme
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Oldham, Michael J., and Owen R. Moss. "Pores of Kohn: forgotten alveolar structures and potential source of aerosols in exhaled breath." Journal of Breath Research 13, no. 2 (March 27, 2019): 021003. http://dx.doi.org/10.1088/1752-7163/ab0524.

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Parra, Saundra C., Ricky Burnette, and Timothy Takaro. "Computer Reconstructions of Normal Human Alveoli From Serial Sections." Proceedings, annual meeting, Electron Microscopy Society of America 43 (August 1985): 312–13. http://dx.doi.org/10.1017/s0424820100118436.

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Portions of two adjacent normal human alveoli were reconstructed from serial sections in order to examine normal alveolar organization, including anatomical relationships among the different cell types, the connective tissue matrix and gaps in the alveolar septum. Computer reconstructions were prepared from montaged electron micrographs of serial sections. Rotation of these reconstructions in the x, y or z axes allowed examination of the alveoli from many different aspects other than the actual plane of sectioning. Anatomical relationships “between Type I and Type II epithelial cells, alveolar
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Peão, M. N. D., A. P. Águas, C. M. de Sá, and N. R. Grande. "Morphological Evidence for Migration of Particle-Laden Macrophages through the Interalveolar Pores of Kohn in the Murine Lung." Cells Tissues Organs 147, no. 4 (1993): 227–32. http://dx.doi.org/10.1159/000147509.

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Xi, Jinxiang, Mohamed Talaat, Hesham Tanbour, and Khaled Talaat. "Airflow and Particle Deposition in Acinar Models with Interalveolar Septal Walls and Different Alveolar Numbers." Computational and Mathematical Methods in Medicine 2018 (September 25, 2018): 1–18. http://dx.doi.org/10.1155/2018/3649391.

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Unique features exist in acinar units such as multiple alveoli, interalveolar septal walls, and pores of Kohn. However, the effects of such features on airflow and particle deposition remain not well quantified due to their structural complexity. This study aims to numerically investigate particle dynamics in acinar models with interalveolar septal walls and pores of Kohn. A simplified 4-alveoli model with well-defined geometries and a physiologically realistic 45-alveoli model was developed. A well-validated Lagrangian tracking model was used to simulate particle trajectories in the acinar mo
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Shimura, Sanae, Edwin S. Boatman, and C. J. Martin. "Effects of ageing on the alveolar pores of Kohn and on the cytoplasmic components of alveolar type II cells in monkey lungs." Journal of Pathology 148, no. 1 (January 1986): 1–11. http://dx.doi.org/10.1002/path.1711480103.

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Fukuoka, Junya, Akira Yoshikawa, Shuntaro Sato, Tomonori Tanaka, Mikiko Hashisako, Yukio Kashima, Tomoshi Tsuchiya, Naoya Yamasaki, Takeshi Nagayasu, and Hiroshi Yamamoto. "Breakdown of lung framework and an increase in pores of Kohn as initial events of emphysema and a cause of reduction in diffusing capacity." International Journal of Chronic Obstructive Pulmonary Disease Volume 11 (September 2016): 2287–94. http://dx.doi.org/10.2147/copd.s114281.

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Jin, Yongyang, and Genkai Zhang. "Fundamental Solutions of Kohn Sub-Laplacians on Anisotropic Heisenberg Groups and H-type Groups." Canadian Mathematical Bulletin 54, no. 1 (March 1, 2011): 126–40. http://dx.doi.org/10.4153/cmb-2010-086-1.

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AbstractWe prove that the fundamental solutions of Kohn sub-LaplaciansΔ+iα∂t on the anisotropic Heisenberg groups are tempered distributions and have meromorphic continuation in α with simple poles. We compute the residues and find the partial fundamental solutions at the poles. We also find formulas for the fundamental solutions for some matrix-valued Kohn type sub-Laplacians on H-type groups.
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Dissertations / Theses on the topic "Pores of Kohn"

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Namati, Eman, and eman@namati com. "Pre-Clinical Multi-Modal Imaging for Assessment of Pulmonary Structure, Function and Pathology." Flinders University. Computer Science, Engineering and Mathematics, 2008. http://catalogue.flinders.edu.au./local/adt/public/adt-SFU20081013.044657.

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In this thesis, we describe several imaging techniques specifically designed and developed for the assessment of pulmonary structure, function and pathology. We then describe the application of this technology within appropriate biological systems, including the identification, tracking and assessment of lung tumors in a mouse model of lung cancer. The design and development of a Large Image Microscope Array (LIMA), an integrated whole organ serial sectioning and imaging system, is described with emphasis on whole lung tissue. This system provides a means for acquiring 3D pathology of fixed w
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Conference papers on the topic "Pores of Kohn"

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Jackson, T., T. P. Babarenda Gamage, and M. H. Tawhai. "The Influence of Pores of Kohn on Alveolar Tissue Micromechanics." In American Thoracic Society 2020 International Conference, May 15-20, 2020 - Philadelphia, PA. American Thoracic Society, 2020. http://dx.doi.org/10.1164/ajrccm-conference.2020.201.1_meetingabstracts.a5683.

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Natori, Hiroshi, Hirotsugu Takabatake, Masaki Mori, Kensaku Mori, Masahiro Oda, Hiroyuki Koba, and Hiroki Takahashi. "Layout of alveoli and pores of Kohn on magnified 3D printed model of the peripheral lung specimen by micro CT." In ERS International Congress 2018 abstracts. European Respiratory Society, 2018. http://dx.doi.org/10.1183/13993003.congress-2018.pa860.

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