منابع مشابه
A cut above
A new technique called CUT&RUN can map the distribution of proteins on the genome with higher resolution and accuracy than existing approaches.
متن کاملViewpoint A Cut Above the Rest
Experienced chefs know that to make a neat cut in a boiled egg or a piece of cheese, a thin wire, or even a fine piece of thread, can work better than a knife. But even a blunt knife can cut soft solids well if it is rocked back and forth while applying a gentle pressure. Understanding the balance of forces needed to make a clean cut into deformable materials could be important for developing h...
متن کاملApproximating Almost All Instances of Max-Cut Within a Ratio Above the Håstad Threshold
We give a deterministic polynomial-time algorithm which for any given average degree d and asymptotically almost all random graphs G in G(n,m = d2n ) outputs a cut of G whose ratio (in cardinality) with the maximum cut is at least 0.952. We remind the reader that it is known that unless P=NP, for no constant > 0 is there a Max-Cut approximation algorithm that for all inputs achieves an approxim...
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A re-examination of the atmospheric cascade profile of the highest energy cosmic ray is presented. The study includes air-shower simulations considering different cross sections, particle multiplicity and variation of the hadronic-event-generator to model interactions above 200 GeV. The analysis provides evidence that a medium mass nucleus primary reproduces the shower profile quite well. This ...
متن کاملBeyond Max-Cut: λ-Extendible Properties Parameterized Above the Poljak-Turzík Bound
Poljak and Turzík (Discrete Math. 1986) introduced the notion of λ-extendible properties of graphs as a generalization of the property of being bipartite. They showed that for any 0 < λ < 1 and λ-extendible property Π, any connected graph G on n vertices and m edges contains a spanning subgraph H ∈ Π with at least λm+ 1−λ 2 (n−1) edges. The property of being bipartite is λ-extendible for λ = 1/...
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ژورنال
عنوان ژورنال: eLife
سال: 2017
ISSN: 2050-084X
DOI: 10.7554/elife.25000