There are three forms of high frequency ventilation, high frequency jet ventilation (HFJV, up to 400/rain), high frequency oscillation (HFO, up to 40 Hz), and high frequency positive pressure ventilation (HFPPV, rates between 60 and 150/min). The first two forms of ventilation are still experimental
The transition in frequency of Y chromatin in males during the neonatal period
β Scribed by Kumiko Iijima; Makoto Higurashi; Munehiro Hirayama
- Publisher
- Springer
- Year
- 1978
- Tongue
- English
- Weight
- 154 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0340-6717
No coin nor oath required. For personal study only.
β¦ Synopsis
The frequency of Y chromatin, visualized as fluorescent bodies in cell nuclei from lymphocytes in blood smears, was significantly less in newborn males than in three-month-old male infants and adults. The frequency of Y chromatin-positive cells on day 0 was 36.16 +/- 9.11% and then increased daily. At one month after birth the frequency was 55.07 +/- 9.29%, which was not significantly different from that in adult males (57.08 +/- 5.97%).
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