Historical Perspective to a Current Controversy on the Clinical Spectrum of Plumbism

1975 ◽  
Vol 53 (1) ◽  
pp. 93 ◽  
Author(s):  
Jacqueline K. Corn
Keyword(s):  
Historical Perspective ◽  
Clinical Spectrum ◽  
Current Controversy ◽  
A Current

The New in Music

Tempo ◽  
1954 ◽  
pp. 8-13
Author(s):  
Jürgen Balzer
Keyword(s):  
New Music ◽  
Musical Composition ◽  
Musical Work ◽  
Modern Times ◽  
Greek Drama ◽  
Current Controversy ◽  
The One ◽  
A Current ◽  
Principal Task

In the year 1601 there appeared in Florence a musical work entitled Le Nuove Musiche (The New Music). The composer was Giulio Caccini, one of the leading members of the circle associated with the noble dilettanti who in attempting to revive the Greek drama laid the foundations of a new branch of music—opera. Le Nuove Musiche contains a collection of songs for solo voice to harp or lute accompaniment, of the kind that Caccini, who was singer to the Tuscan Court, had been singing for many years. The work—called not New Music, but The New Music—was a contribution to a current controversy in which the opposing side supported the “old” manner of musical composition, the one in which two or more melodies are woven together to form an elaborate pattern. (This manner of composition is known as polyphony, and in modern times the style has been called after one of its greatest masters, Palestrina). Consequently, Le Nuove Musiche has a long preface in which Caccini expounds the meaning of his songs, declaring, among other things, that the new style considers its principal task to be to interpret the poetry, to give rightful scope to the words by careful enunciation, and to let the tune bring out the phrasing of the poem, an aspect which, in the modernists' view, had been singularly neglected in polyphonic compositions.

scholarly journals Space–Time Duality for Fractional Diffusion

2009 ◽  
Vol 46 (4) ◽  
pp. 1100-1115 ◽  
Author(s):  
Boris Baeumer ◽  
Mark M. Meerschaert ◽  
Erkan Nane
Keyword(s):  
Contaminant Transport ◽  
Power Law ◽  
Fractional Derivatives ◽  
Waiting Times ◽  
Stable Process ◽  
Fractional Diffusion ◽  
Fractional Diffusion Equations ◽  
Lévy Motion ◽  
Current Controversy ◽  
A Current

Zolotarev (1961) proved a duality result that relates stable densities with different indices. In this paper we show how Zolotarev's duality leads to some interesting results on fractional diffusion. Fractional diffusion equations employ fractional derivatives in place of the usual integer-order derivatives. They govern scaling limits of random walk models, with power-law jumps leading to fractional derivatives in space, and power-law waiting times between the jumps leading to fractional derivatives in time. The limit process is a stable Lévy motion that models the jumps, subordinated to an inverse stable process that models the waiting times. Using duality, we relate the density of a spectrally negative stable process with index 1<α<2 to the density of the hitting time of a stable subordinator with index 1/α, and thereby unify some recent results in the literature. These results provide a concrete interpretation of Zolotarev's duality in terms of the fractional diffusion model. They also illuminate a current controversy in hydrology, regarding the appropriate use of space- and time-fractional derivatives to model contaminant transport in river flows.

Nitrogen, macrophytes, shallow lakes and nutrient limitation: resolution of a current controversy?

Hydrobiologia ◽  
2012 ◽  
Vol 710 (1) ◽  
pp. 3-21 ◽  
Author(s):  
Brian Moss ◽  
Erik Jeppesen ◽  
Martin Søndergaard ◽  
Torben L. Lauridsen ◽  
Zhengwen Liu
Keyword(s):  
Nutrient Limitation ◽  
Shallow Lakes ◽  
Current Controversy ◽  
A Current

Myth Understood

Theology ◽  
1978 ◽  
Vol 81 (684) ◽  
pp. 417-425
Author(s):  
Don Cupitt
Keyword(s):  
Short Statement ◽  
Current Controversy ◽  
A Current

This short statement was written to introduce a lay audience to a current controversy.

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