Results 21 to 30 of about 1,956 (136)
The symbolic model for algebra : functions and mechanisms [PDF]
, 2010 The symbolic mode of reasoning in algebra, as it emerged during the sixteenth century, can be considered as a form of model-based reasoning. In this paper we will discuss the functions and mechanisms of this model and show how the model relates to its ...
A. Heeffer +6 more
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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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An Introduction to Finite Fibonomial Calculus
, 2004 This is an indicatory presentation of main definitions and theorems of fibonomial calculus which is a special case of psi-extented rota's finite operator calculus.Comment: 16 ...
Krot, Ewa
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From Fibonacci to the mathematics of cows and quantum circuitry [PDF]
, 2014 The Fibonacci sequence is a famously well-known integer sequence from the thirteenth century which has transcended its original motivation. It possesses many interested and varied applications within architecture, engineering and science. Less well known
Wilmott, CM
core
Pseudomorphic Growth of a Single Element Quasiperiodic Ultrathin Film on a Quasicrystal Substrate [PDF]
, 2004 An ultrathin film with a periodic interlayer spacing was grown by the deposition of Cu atoms on thefivefold surface of the icosahedral Al70 Pd21 Mn9 quasicrystal.
A. R. Ross +13 more
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Journal of Fish Biology, EarlyView.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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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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