Results 41 to 50 of about 211,650 (268)
Odd Crossing Number Is Not Crossing Number [PDF]
, 2006 The crossing number of a graph is the minimum number of edge intersections in a plane drawing of a graph, where each intersection is counted separately. If instead we count the number of pairs of edges that intersect an odd number of times, we obtain the odd crossing number. We show that there is a graph for which these two concepts differ, answering a
Michael J. Pelsmajer +2 more
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Non-Crossing Frameworks with Non-Crossing Reciprocals [PDF]
Discrete & Computational Geometry, 2004 We study non-crossing frameworks in the plane for which the classical reciprocal on the dual graph is also non-crossing. We give a complete description of the self-stresses on non-crossing frameworks whose reciprocals are non-crossing, in terms of: the types of faces (only pseudo-triangles and pseudo-quadrangles are allowed); the sign patterns in the ...
David Orden +5 more
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Evaluation of the cows' exterior obtained by different selection options
Передгірне та гірське землеробство і тваринництво, 2022 The highest form of selection and breeding work in animal husbandry is the breeding of animals by the lines. However, the productivity of animals depends not only on their belonging to the lines, but also on the compatibility in the lines.
М. І. KОHUТ, V. М. BRАТIUK
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Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source
Odd Crossing Number and Crossing Number Are Not the Same [PDF]
Discrete & Computational Geometry, 2006 The crossing number \(\text{cr}(G)\) of a graph \(G\) is the minimum number of edge crossings, taken over all drawing of \(G\) in the plane. Similarly \(\text{per}(G)\) (respectively \(\text{ocr}(G)\)) denotes the minimum number of pairs of edges which cross at least once (respectively an odd number of times), over all drawings of \(G\) in the plane ...
Michael J. Pelsmajer +2 more
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FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
Computational Experiments with Cross and Crooked Cross Cuts [PDF]
INFORMS Journal on Computing, 2014 In this paper, we study whether cuts obtained from two simplex tableau rows at a time can strengthen the bounds obtained by Gomory mixed-integer (GMI) cuts based on single tableau rows. We also study whether cross and crooked cross cuts, which generalize split cuts, can be separated in an effective manner for practical mixed-integer programs (MIPs ...
Sanjeeb Dash +2 more
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Животновъдни науки, 2015 Physiological experiment for nutrients’ digestibility was carried out in Agricultural institute – Shumen. The aim of the study was investigating nutrients’ digestibility from ration in pigs of different crosses.
РАДКА НЕДЕВА +3 more
doaj
FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
HorticulturaeBlueberry breeding requires a significant commitment of time, skilled labour, and financial resources, but it is essential to develop new cultivars that can meet challenges such as climate change, disease resistance, and changing market preferences ...
Oana Hera +2 more
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