Positioned at group 16 and period 2 in the periodic table, oxygen is an unusually reactive non-metallic atom that forms compounds with nearly all other elements. Its cosmic abundance combined with its chemical properties lead to its participation in a range of processes that build or protect plan...
Background and objective: The aim of this study was to evaluate the effects of increased oxygen availability on gene expression and on collagen deposition/maturation in the periodontium following disease. Material and methods: Male Wistar rats had ligatures placed around their molars to induce perio...
3i), the number of circulating plasmatocytes and crystal cells remained comparable to that of the control group after 4 h of hypoxia (Fig. 2a). This phenotype was not mediated by the branchless (bnl) FGF ligand (Extended Data Fig. 3j,k). These results suggest that haemocytes do not ...
In addition, a Pyrex surface, though generally classed in the clean silica group, is nevertheless more destructive for chain carriers than silica. Sign in to download full-size image FIG. 24. Second explosion limit versus partial pressure of hydrogen in a mixture of 2CO + O2 in cylindrical ...
Eleven had arterial oxygen partial pressure values (PaO2) > or = 8 kPa (Group 1) and nine had PaO2 90% for 78 +/- 24% of the 24-h period. Four patients spent between 75 and 90%, and three spent 90%. In Group 2, SaO2 was 90%. Measurements of SaO2 over 24 h in patients ...
Ninety-two children undergoing long auditory assessments were randomly assigned to two study arms: CHS (n = 40) and GA (n = 52). Data of 81 children (mean age 13.8 months, range 1–36 months) were analyzed. In the GA group, we followed a predefined 10 N concept (...
In order to rationalise the anisotropic thermal properties of anatase, a small anatase supercell (space group:P1) was modelled and optimised by ab-initio DFT simulations (see DFT in SI). The supercell was orientated with the dominant (101) surface exposed to vacuum by terminating oxygen sites....
Sixty-four patients (28 in home oxygen alone and 36 in home oxygen plus home NIV) completed the 12-month study period. The median time to readmission or death was 4.3 months (IQR, 1.3-13.8 months) in the home oxygen plus home NIV group vs 1.4 months (IQR, 0.5-3.9 months) in the ...
nominally more improved by oxygen treatment than room air. Many studies suggested that remission should be defined with a HRSD cut-off of seven or less39,40,41. Using that criterion, we found seven patients who reached remission with oxygen treatment and no patients in the control group who ...
1 and 2). By taking advantage of localized interactions between protons and oxygen, 1H-17O HETCOR experiment could provide selective information on the surface hydroxyl groups and even the surface bare oxygen species provided the proton source such as hydroxyl group or adsorbed water are in close...