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Bjk1 fb1

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Febi Sugiarti.

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Federal government websites often end in. The site is secure. Background: Fumonisin B1 FB1 is one of the most common mycotoxins contaminating feed and food. Although regulatory limits about fumonisins have been established in some countries, it is still very important to conduct research on lower doses of FB1 to determine the tolerance limits. The aim of this study was to investigate the effects of different concentrations of FB1, provide further evidence about the toxic doses- and exposure time-associated influence of FB1 on mice, especially low levels of FB1 for long-term exposure. Results: After the long-term administration of FB1, the body weights of the mice tended to decrease.

Bjk1 fb1

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Get your own cloud service or the full version to view all details. In this section, we shall prove that this problem is always decidable for diagram groups over semigroup presentations and it may be undecidable for monoid presentations. Olshanskii, S. We shall use the following simple observation. Notice that C some important LOG groups were known long ago. It is easy to see that this congruence coincides with the equivalence! Christopher Hollings. For example, is every orientable surface group representable by diagrams over a semigroup resp. We need to prove that G is isomorphic to H. Thus this is a aabb; abab -diagram. Since p and q are reduced, the edge p; t! This will complete the proof. The diagram in Example 3. We leave the proof of this simple application of Theorem 9.

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The following lemma is obvious. Then the problem of equivalence of two pictures over the presentation P 0 is undecidable. Toggle navigation. This implies that we subdivide the set of indexes 1; ; n into pairs such that for every pair i; j we have: ui ; ri! MZyh, Ansi based on Dropped File libxml In fact the diagram group over this presentation with the base x2 is the simplest example of a diagram group for which we are not able to prove the orderability. Thompson's groups F and F for every n which are diagram groups, see n Examples 6. By Theorem 9. In particular, the diagram group from the next example has solvable equality problem as any diagram group over a semigroup presentation, see Theorem An argument similar to that used in the proof of Lemma 8. Then Lemma It would be interesting to know the answer to the following general question: Can a non-Abelian group representable by diagrams satisfy a non-trivial identity? This gives an algorithmic solution of the problem of equivalence of diagrams pictures over a given presentation and the fact that every diagram group over a semigroup presentation has a recursive presentation.