Odd-legs

A spin ladder is an array of coupled spin chains. The horizontal chains are called the legs, the vertical ones, rungs. In the case of spin one-half antiferromagnet spin-ladders, these systems show a. remarkable behaviour in function of the number of leg there is a gap in the excitation spectrum of even-leg ladders and, on the contrary, no gap in the excitation spectrum of odd-leg ladders. In terms of correlation lengths, this means that there is short (long) -range spin correlation in even (odd) -legladder (see [24] for a review). 

These combine a straight pointed divider leg with a caliper or stepped leg and are used to scribe a line parallel to the edge of a workpiece. They are more commonly known as odd-legs or jennies . 

To prove you have some control over your destiny, despite the chain around your leg, you swing away from the path you ve taken and follow a little green light that sits atop a metallic structure. You pass tiny craters and odd blobs of maroon that look neither alive nor dead, but as if they are hibernating. Ah, if only you had time to take a more leisurely travel in this world. But you have responsibilities. 

For translationally symmetric bipartite systems with NA = NB = N and cyclic boundary conditions, either bn is zero or bn = — 6n-i, although actual values of bn for a given strip depend to a certain extend on the unit cell selected. For instance, bn is even for ladders with an even number of legs, while bn is odd for ladders with an odd number of legs. In particular,... 

You can think about chiral chromatography like this. Put yourself in this familiar situation you want to help out a pensioner friend of yours who sadly lost his left leg in the war. A local shoe shop donates to you all their spare odd shoes, left and right, in his size (which happens to be the same as yours). You set about sorting the lefts from the rights, but are plunged into darkness by a power cut What should you do Well, you try every shoe on your right foot. If it fits you keep it if not it s a left shoe and you throw it out. 

The simulated INEPT 13C spectrum of 2-chlorobutane is shown in Figure 12.14. By comparing this to the corresponding undecoupled 13C spectrum (Figure 8.11), note how each multiplet is both intensified and divided at its center into positive and negative lines that no longer show the same relative intensities as in the undisturbed multiplet. The appearance of these multiplets is quite similar to the multiplet effect CIDNP spectra we saw in Section 11.9, and as was true there, the middle leg of a multiplet with an odd number of lines vanishes. 

Poultry provides another, much more complex, example of litter-contaminated food product. The complexity is generated both by the odd shape of poultry carcasses, with several concave shaded areas (under the wings and the leg folds), by the heterogeneity of the skin color due to the relative transparency of the chicken skin, and by the various causes of safety hazards in chicken here, not only litter contamination must be detected, but also cadaver, septicemia and tumor problems among others. 

You can think about chiral chromatography like this. Put yourself In this familiar situation you want to help out a pensioner friend of yours who sadly lost his left leg In the war. A Icxal shoe shop donates to you all their spare odd shoes, left and right. 

The senses provide many examples of odd but unmistakable convergence. Katydids are so different from us that they put their ears by their knees. But katydid leg-ears hear with the same shapes as human ears an eardrum, a plate amplifier, and a crest of sound-wave-sensing nerves. The same three-part mechanism with similar shapes developed from very different starting materials. 

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