Results 21 to 30 of about 117 (89)
Stability Analysis of a Class of Higher Order Difference Equations
Abstract and Applied Analysis, Volume 2014, Issue 1, 2014., 2014 We consider the sufficient conditions for asymptotic stability and instability of certain higher order nonlinear difference equations with infinite delays in finite‐dimensional spaces. With the aid of the general comparison condition on the right‐hand side function fk(·), we generalize the stability and instability result.
Yuanyuan Liu, Fanwei Meng, Yonghui Xia
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BioMed Research International, Volume 2012, Issue 1, 2012., 2012 Ulcerative colitis (UC) is debilitating and carries a high colon cancer risk. Apoptosis of inflammatory cells is a key mechanism regulating UC. We have recently shown that American ginseng (AG), and to a greater extent, a Hexane fraction of AG (HAG) can cause apoptosis and suppress mouse colitis through a p53‐mediated mechanism.
Deepak Poudyal +12 more
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Sunflower Array Antenna with Adjustable Density Taper
International Journal of Antennas and Propagation, Volume 2009, Issue 1, 2009., 2009 A deterministic procedure to design a nonperiodic planar array radiating a rotationally symmetric pencil beam pattern with an adjustable sidelobe level is proposed. The elements positions are derived by modifying the peculiar locations of the sunflower seeds in such a way that the corresponding spatial density fits a Taylor amplitude tapering law which
Maria Carolina Viganó +5 more
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Noûs, EarlyView.ABSTRACT It is a truism of mathematics that differences between isomorphic number systems are irrelevant to arithmetic. This truism is deeply rooted in the modern axiomatic method and underlies most strands of arithmetical structuralism, the view that arithmetic is about some abstract number structure.
Balthasar Grabmayr
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Journal of Fish Biology, Volume 108, Issue 4, Page 1324-1336, April 2026.Abstract Electroanaesthesia using electric fish handling gloves induced rapid and reversible sedation of Atlantic mackerel (Scomber scombrus) during surgical tagging without observable adverse effects on behaviour or tag retention. In the laboratory, survival analyses revealed that longer handling times and smaller body sizes significantly reduced ...
Caliyena R. Brown +4 more
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As escolas de ábaco e a expansão dos algarismos indo-arábicos na Europa ocidental
Revista Brasileira de História da MatemáticaEste artigo lança luz sobre a disseminação dos algarismos indo-arábicos através de evidências recentes que vão além da apresentação de um cenário político e econômico favorável da Europa Ocidental para reconstruir a transição de praticantes europeus de ...
Raquel Gomes Rosa de Mendonça +2 more
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The Annotation of Liber Abbaci, a Domain-Specific Latin Resource [PDF]
, 2022 The Liber Abbaci (13th century) is a milestone in the history of mathematics and accounting. Due to the late stage of Latin, its features and its very specialized content, it also represents a unique resource for scholars working on Latin corpora. In this paper we present the annotation and linking work carried out in the frame of the project Fibonacci
Francesco Grotto +5 more
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On the examples of Egyptian fractions in Liber Abaci
The focus of this note is to formulate the algorithms and give the examples used by Fibonacci in Liber Abaci to expand any fraction into a sum of unit fractions. The description in Liber Abaci is all verbal and the examples are numbers which may lead to different algorithmic descriptions with the same input and results.
Steihaug, Trond, Gardner, Milo
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The art of painting chromosome loops. [PDF]
Quant Plant Biol, 2023 Berr A, Chabouté ME.
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