The Pattern of Youth: an Interim Report
β Scribed by ARMATTOE, R. E. G.
- Book ID
- 109542109
- Publisher
- Nature Publishing Group
- Year
- 1943
- Tongue
- English
- Weight
- 119 KB
- Volume
- 152
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/152217a0
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract A diffusion apparatus for the measurement and monitoring of microleakage is described. Radioactive ions are used to measure the diffusion across a section of a filled tooth. A study was made of the sealing ability of some amalgams and a composite resin filling material.
Single-zeta and -electron double-zeta basis sets are used to examine some theories of the origin of the stability of the D isomer of O , using ab initio 2 h 4 Ε½ valence-bond procedures. With these basis sets, resonance between covalent-type i.e., . O ΠΈ ΠΈ O valence-bond structures does not lead to a