Prophylaxis-scope and limitations

Legal Positivism : Its Scope and Limitations

Fruit Tree Models: Scope and Limitations

Models are used extensively in research, in the social sciences [e.g. economics] as well as in the physical, chemical and biological sciences. As a preliminary definition one could think of a model as an attempt to describe a certain process or system through the use of a simplified representation, preferably a quantitative mathematical expression, that focuses on a relatively few key variables...

Amine-Directed Hydroboration: Scope and Limitations

Iodine activation induces intramolecular hydroboration of homoallylic and bis-homoallylic amine boranes with good to excellent control of regiochemistry compared to control experiments using excess THF*BH 3. Deuterium labeling and other evidence confirm that the iodine-induced hydroboration reaction of homoallylic amine boranes occurs via an intramolecular mechanism equivalent to the classical ...

Extra-Pleural Pneumothorax—Its Scope and Limitations

it ^ aS ^ ?^lers' but ̂ is only since 1937 that . has come to be extensively used. However, ^nce the experience of the operation covers only ah Period of five years, any conclusions ?ut it should still be considered tentative and ossibly subj ect to revision in the light of further Perience, but enough work has been done to ve a preliminary opinion about its scope and Rations. . the extra-pleura...

QM/MM Methodology: Fundamentals, Scope, and Limitations

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