منابع مشابه
The Rate of Decomposition of Nitrogen Pentoxide at Very Low Pressures.
(3) The reaction time of the direct growth-response is constant for a particular intensity of illumination, provided that the duration of the exposure period exceeds a certain value. Below that value the reaction time increases as the exposure time decreases. This is also true for the phototropic response. (4) The manner in which the reaction time of each mode of response varies as a function o...
متن کاملNew Methods for Investigating Superconductivity at Very High Pressures
1. – Introduction As a result of rapid developments in diamond-cell techniques, a broad range of studies of the physical and chemical properties of solids can be now conducted in situ to megabar pressures (i.e., > 100 GPa). The highest superconducting T c has been achieved by application of pressure of ∼ 30 GPa on HgBa 2 Ca 2 Cu 3 O 8+δ giving critical superconducting temperature of 164 K [3]. ...
متن کاملCorneal swelling at low atmospheric oxygen pressures
both cornea and conjunctiva occurred as early as 15 min after bacterial inoculation. By 1 to 3 hr after bacterial inoculation, shrinkage of corneal epithelial cells was pronounced (Fig. 5, a and b). Fewer microvilli were seen on the shrunken regions of these affected cells, and the cell surfaces appeared roughened and irregular. Additionally, intercellular junctions were dilated to 1.0 fim in d...
متن کاملCorneal swelling at low atmospheric oxygen pressures.
Corneas of 28 human subjects were exposed to oxygen partial pressures, in a gas goggle, of either 6.9, 17.1, or 22.2 mm Hg, and the corneal swelling was measured by pachometry for 4 hr. Following an initial rise, the swelling stabilized after about 3 hr; in many subjects it was reversed, indicating an adaptation process. The average corneal swelling after 4 hr for the three oxygen partial press...
متن کاملVery-Low-Birthweight Infants at
To determine whether history of chronic lung disease (CLD) in children born at very low birthweight (VLBW) confers additional risk for impaired health, growth, and neurodevelopment, 17 VLBW children born in 1984 who had CLD (requiring supplemental oxygen more than 30 days after birth) in infancy and 28 VLBW children who did not have CLD were assessed at age 7 years. Assessments included a medic...
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ژورنال
عنوان ژورنال: The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science
سال: 1897
ISSN: 1941-5982,1941-5990
DOI: 10.1080/14786449708620952