منابع مشابه
The archaellum: how Archaea swim
Recent studies on archaeal motility have shown that the archaeal motility structure is unique in several aspects. Although it fulfills the same swimming function as the bacterial flagellum, it is evolutionarily and structurally related to the type IV pilus. This was the basis for the recent proposal to term the archaeal motility structure the "archaellum." This review illustrates the key findin...
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In the first part of the paper we recall the coalgebraic approach to handling the so-called invisible transitions that appear in different state-based systems semantics. We claim that these transitions are always part of the unit of a certain monad. Hence, coalgebras with internal moves are exactly coalgebras over a monadic type. The rest of the paper is devoted to supporting our claim by study...
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Sokoban is a game on an integer grid, where a warehouse keeper, or robot, has to push boxes to designated storage locations. He can push a box one cell horizontally or vertically if the destination cell is free. Some of the grid cells can be occupied by unmovable obstacles. Several variants of Sokoban have been studied. In these variants all obstacles may be movable, the keeper may push up to k...
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Consider a finite sequence of permutations of the elements 1, . . . , n, with the property that each element changes its position by at most 1 from any permutation to the next. We call such a sequence a tangle, and we define a move of element i to be a maximal subsequence of at least two consecutive permutations during which its positions form an arithmetic progression of common difference +1 o...
متن کاملInventory routing with continuous moves
The typical inventory routing problem deals with the repeated distribution of a single product from a single facility with an unlimited supply to a set of customers that can all be reached with out-and-back trips. Unfortunately, this is not always the reality. We introduce the inventory routing problem with continuous moves to study two important real-life complexities: limited product availabi...
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ژورنال
عنوان ژورنال: Microbe Magazine
سال: 2015
ISSN: 1558-7452,1558-7460
DOI: 10.1128/microbe.10.283.1