Smaller self

Smaller self-cleaving RNAs have been found among plant viruses and viroids. Many of them have a common catalytic core which can be converted into 30- to 40-nucleotide ribozymes. Only 17 nucleotides and three hydrogen-bonded helical stems are required to form the self-cleaving "hammerhead" domain, which has a structural similarity to the catalytic core of the Tetrahymena ribozyme. The hammerhead ribozymes (Fig. 12-27) represent one form of small ribozyme.793-797 Another is the hairpin ribozyme shown in Fig. 

The space probe is shaped like a huge sphere. Inside the sphere are a number of smaller, self-contained spheres, each of which holds machinery for specialized tasks. In the biggest of the interior spheres—let s call it the library —are the blueprints for making all the machines in the space probe. These are not ordinary blueprints, however. They can be thought of as blueprints in braille—or perhaps as sheet music for a player piano— where physical indentations in the blueprint cause a master machine to make the machine for which the blueprint codes. 

One way of describing Joe s problem is that his inner life was dominated by his smaller self, the individual ego within each of us whose only job is to guarantee our survival. In Buddhist psychology, we all have both a smaller and a larger self. The smaller self is the part of ourselves that has a history, a story that we hold on to at all costs. My father left me when I was five, or I was sexually abused in my teens, or I have always had trouble getting into good relationships. It s not so much that this story isn t true or even that it isn t important—but when we are in our small selves, we tend to think that this story is all there is. 

The diagonals of the inscribed pentagon define a smaller self-similar pentagram. From the defining equation (3.7) it follows that any power of can... 

Flat bottom tanks with targe diameter and fixed roof normally are designed with column-supported roofs. As the diameter gets smaller, self-supporting roofs become more economical. Dome and cone roofs are the most popular types. 

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