“Somebody says, ‘You know, you people always say that space is continuous. How do you know when you get to a small enough dimension that there really are enough points in between, that it isn’t just a lot of dots separated by little distances? ’ Or they say, ‘You know those quantum mechanical amplitudes you told me about, they’re so complicated and absurd, what makes you think those are right? Maybe they aren’t right. ’ Such remarks are obvious and are perfectly clear to anybody who is working on this problem. It does not do any good to point this out.” —Richard Feynman [1, p.161]

case. The features of nonlinear dynamics of strain field and effective spins, which correspond to the different kinds of acoustic solitons, are studied. PACS numbers: 05.45.Yv, 43.35.+d, 02.30.Ik The development of physical acoustics has led to the appearance of technical tools of producing

Recently, properties of the sequence {L2n+\}, where L2n+i is a Lucas number of order 2n + 1, were studied [1]. In the present paper, we introduce a new class of numbers defined by (i.D /(*, k) = (- l r- ^. Y) ^ !,

Two new entropies are offered in this paper. Neither belongs to the traditional conservative statistical mechanics. The first recognizes that the discovery that there are states of granular or glassy systems which can be restricted by an appropriate experimental pathway implies that an entropy can

This article describes two aspects of thinking about learning objects, their desired “standalone ” nature and certain best-practice recommendations regarding their production. The article disputes that a learning object can ever truly be “standalone ” and argues that the best way to get them produced is by the lone academic herself rather than the traditional managed production teams. To support this it cites the example of open-source software production and online collaborative enterprises such as Wikipedia which achieve their aims without any traditional management layer, but rather function on a volunteer basis. The author concludes with a case study where he attempted to put these methods into practice in producing materials for a Master’s multimedia course.

Finance has benefited from the Wolfram’s NKS approach but it can and will benefit even more in the future, and the gains from the influence may actually be concentrated among practitioners who unintentionally employ those principles as a group.

www.mdpi.com/journal/materials

Two kinds of contemporary developments in cryptography are examined. Widening applications of teleprocessing have given rise to a need for new types of cryptographic systems, which minimize the need for secure key distribution channels and supply the equivalent of a written signature. This paper

magnetosensitivity and point out that the animal’s genius radical pair mechanism may be simulated to develop a new chemical magnetic detection mechanism, or even a new kind of magnetometer, which is different from current magnetic detection technology.

... This paper concerns the problem of interprocedural slicing---generating a slice of an entire program, where the slice crosses the boundaries of procedure calls. To solve this problem, we introduce a new kind of graph to represent programs, called a system dependence graph, which extends