ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    ISSN: 1573-2614
    Keywords: Infant ; respiratory function testing ; lung mechanic ; simulation ; pneumotachography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science , Medicine
    Notes: Abstract Objective. A dead space free method based on simultaneous ventilatory measurements in the inspiratory and expiratory limb of the ventilator circuit was compared to the conventional endotracheal method where the flow is measured between ETT and Y-Piece. The aim of our study was to find out how the arrangement of this setup affects the measuring accuracy of 1) the ventilatory and 2) the lung mechanical parameters by means of a computer simulation. Method. The system consisting of ventilator tubes and lung was described in state space and the flow signals of endotracheal method, of dead space free method and the pressure at the Y-piece were simulated in the time domain. To investigate the influence of the position of the pneumotachographs (PNTs) in the ventilator circuit on measuring accuracy, the distance d0 of the PNT from the Y-piece was varied between 0 and 900mm. The respiratory compliance C, resistance R and inertance I were calculated by least square method using the simulated flow and pressure signals of both methods. Results. Compared to the endotracheal method, with increasing d0 the tidal volume measured with the deadspace free method rose linearly, depending on the ratio between the compliance of the ventilator tubes to the respiratory compliance. The differences of C and R for both methods were acceptable (〈 10%) if the distance between each PNT and the y-piece didn’t exceed 200mm and the shorter d0 the higher the measuring accuracy. The inertance could not be measured by this method with satisfactory accuracy if d0 was higher than 100 mm. Inconclusion, the dead space free method can be used for accurate ventilatory measurements during mechanical ventilation. However, for lung mechanic measurements in very low birth weight infants the position of the PNTs must be as short as possible.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    facet.materialart.
    Unknown
    Boydell & Brewer | James Currey
    Publication Date: 2023-12-07
    Description: Pipeline is a low-income, high-rise-tenement settlement in Nairobi's marginalized East and one of sub-Saharan Africa's most densely populated estates. An aspirational place where fleeting forms of capitalist consumption reassure migrants of an upward trajectory, it is also a place where their ambitions of long-term economic success and stable romantic relationships are routinely thwarted. This book explores how men who migrate to Nairobi from Western Kenya navigate this tension that is generated by the contrast between their view of Pipeline as a launching pad for their personal and professional careers and the fact that they face constant economic, romantic, and personal backlashes. Drawing on over two years of fieldwork, the book reveals that many male migrants design their future on trajectories of personal and economic growth but have to adjust or indefinitely postpone their plans once they arrive in Kenya's capital. Under the pressure to succeed from romantic partners, spouses, rural kin, and children, they create and participate in homosocial spaces where a sense of brotherhood emerges and their experience of pressure is attenuated. Alongside a deep ethnographic exploration of how male migrants model their financial, physical, and mental well-being in three different masculine spaces - an ethnically homogenous investment group, an interethnic gym, and the semi-digital sphere of self-help books, workshops, and motivational trainings on man- and fatherhood - this book brings a new perspective to our understanding of urban African life and the nature of masculinity. This title is available under the Creative Commons license CC BY-NC-ND, with funding from the Max Planck Institute for Social Anthropology Open Access Fund and the German Research Foundation.
    Keywords: African Gender Studies ; Gender Roles in East Africa ; African Society ; African Masculinity ; Gender Roles in Africa ; Male Migrants in Nairobi ; Migrants in East Africa ; African Migration ; bic Book Industry Communication::J Society & social sciences::JH Sociology & anthropology::JHM Anthropology::JHMC Social & cultural anthropology, ethnography ; bic Book Industry Communication::J Society & social sciences::JF Society & culture: general::JFS Social groups::JFSJ Gender studies, gender groups::JFSJ2 Gender studies: men ; bic Book Industry Communication::K Economics, finance, business & management::KC Economics::KCU Urban economics ; bic Book Industry Communication::K Economics, finance, business & management::KC Economics::KCM Development economics & emerging economies
    Language: English
    Format: image/jpeg
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...