Hidden return

HIDDEN RETURN High-potential iron protein,... 

EXTERNAL ION-PAIR RETURN HIDDEN RETURN Ion permeation across membrane, PERMEABILITY CONSTANT PERMEABILITY COEFFICIENT ION PUMPS... 

Internal Ion Pair Return—collapse of a contact ion pair to covalent material, sometimes referred to as hidden return if the covalent material is formed without scrambling of isotopic label or without partial racemization ... 

When the covalent molecule RZ is re-formed without direct evidence of prior partial racemization or without other direct evidence of prior formation of a tight ion pair (e.g., without partial racemization if the group R is suitably chiral), the internal ion-pair return is sometimes called a hidden return. 

Returning to our two definitions of an acid, the first, the operational definition, gives clearcut instructions on how to decide whether a given substance is an acid. Dissolve it in water and see if it has certain properties. The second (conceptual) definition, however, has the deeper significance since it includes our knowledge of why an acid has these particular properties. It provides a basis for finding hidden likenesses between acid-base reactions in water and other reactions in other solvents. Each type of definition has its merit neither is the definition. 

The plant was constructed in 2000 and it was functionally tested in the spring 2001. The function of the storage and the sea water system worked as planned. However the distribution of district cold did not functioned due to a hidden short cut between the supply and return line (unclosed buried valve). For this reason the system was not fully in operation this season. 

One layer of input nodes and another of output nodes form the bookends to one or more layers of hidden nodes Signals flow from the input layer to the hidden nodes, where they are processed, and then on to the output nodes, which feed the response of the network out to the user. There are no recursive links in the network that could feed signals from a "later" node to an "earlier" one or return the output from a node to itself. Because the messages in this type of layered network move only in the forward direction when input data are processed, this is known as a feedforward network. 

We shall return to these mechanisms for creating ever more elaborate nuclei. But first, let us glance back at the abundance table, for it would be an oversight not to mention the rich nuggets of information that lie hidden in meteorite studies. 

Back at the desk, I wrote out a label for the ointment. I also made a note in the book catalogue that the Zwingli volume had been returned to its owner, and corrected the original entry. Having replaced the catalogue in its hidden compartment, I wrapped the book carefully and tucked it in my satchel with the jar. 

All the machinery of the world composes only one body, all the parts of which are bound by means which partake of the nature of the extremes. This bond is hidden, this knot is secret but it is not the less real, and it is by mean of it that all these parts lend themselves to mutual aid, since there is a relation, and a true commerce between them. The emissary spirits of the superior natures make and maintain this communication some go away while others come some return to their source while others descend from it the last come takes their place, the others depart in their turn, still others succeed them and by this continual flux and reflux Nature is renewed and maintained. These are the wings of Mercury, by the aid of which this messenger of the gods made such frequent visits to the inhabitants of the Heavens and the Earth. 

A second implication of the cognitive map is that animals should be able to infer routes between locations, even if they have not traveled those routes. Animals should take shortcuts. Figure 2.2 shows a diagram of paths taken by Alsatian dogs over an outdoor meadow in an experiment by Chapuis and Varlet (1987). From a starting point, Point D, a dog was led to Point A and shown a piece of meat hidden in the grass. The dog was returned to Point D and then led to Point B, where it was shown a second piece of hidden meat. It was then returned to point D, where its... 

Well, it s only human nature to ask, If sea anemones can clone themselves without hardly trying, and the natural cloning powers of plants are so easily exploited, why can t we begin learning how to clone ourselves The answer to that question is hidden in the secrets of the cell. All plants have one kind of cell that remains forever in the embryonic condition. These cell layers of embryonic tissue are totipotent and can give rise to new differentiated cells. Cut the stem of a plant and these cells will produce root, stem, and leaf tissues. In some animals, totipotent cells—as in the foot of a sea anemone—when cut, will dedifferentiate, and return to an embryonic condition. Then they... 

Cf. the detailed account in E. Kogon et at., ibid., pp. 82f., which completely disregards the facts claimed by Rauff. His personnel file (copies in the author s possession) shows that his initial profession was marine officer". He left the navy in late 1937 for personal reasons and transferred to the RSHA. In May 1940, however, he returned to the navy and left it one year later as lieutenant commander. From autumn 1941 to May 1942 he was stationed in Prague, just as he claims. As of June 1942 he was on SD duty in north Africa, and later in Italy, at least until May 1944, when the Italian front collapsed. Thus, it is not clear how he could have been involved in design and construction of these vans, the purpose of which is still hidden to us. 

If the exciton binding energy relative to the separate charge pair is larger than that of the polarons relative to their free particle bands, the polaronic optical transitions will be hidden under the excitonic ones, and a one-electron approximation of the polaron certainly fails. This is yet another reason why optical signatures of the polaron may give dubious results (see Section IV.C.4). Such a situation can have practical consequences, to which we return in the discussion of electroluminescence in Chapter 12, Section V.C. 

So we returned to the Ca Zuanbattista Sanudo. Giorgio tied up alongside the family gondola and I left the lovers hidden in thefelze while I set off to face the music for them. A footman opened the door, but he was young and broad shouldered, and I recognized yesterday s gondolier... Fabricio. 

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