The similarities between biological and musical acoustic systems has lead to the idea that bioacoustics, and understanding of animal sound production, could provide models for new musical instruments. Physical modeling synthesis of these systems offers the musician the ability to manipulate natural sound, much in the same way s/he would a traditional musical instrument. In this research, the so...

Densely stacked Ag nanoparticles with an average diameter of 199 nm were effectively deposited on TiO2-coated cicada wings (Ag/TiO2-coated wings) from a water-ethanol solution of AgNO3 using ultraviolet light irradiation at room temperature. It was seen that the surfaces of bare cicada wings contained nanopillar array structures. In the optical absorption spectra of the Ag/TiO2-coated wings, th...

Periodical cicadas (Magicicada spp.) in the USA are famous for their unique prime-numbered life cycles of 13 and 17 years and their nearly perfectly synchronized mass emergences. Because almost all known species of cicada are non-periodical, periodicity is assumed to be a derived state. A leading hypothesis for the evolution of periodicity in Magicicada implicates the decline in average tempera...

Recent bioacoustic investigations have shown that Cicadetta montana Scopoli 1772 is a complex of morphologically similar sister species that are best characterized by their song patterns. At the type locality of C. montana, only mountain cicadas with simple, long lasting song phrases were heard, recorded and collected. Therefore, we have good reasons to suggest that this type of song is charact...

In the cross-striated muscle of the vertebrate, the spontaneous activity is observed only in special experimental conditions, though it is usually observed in the iterative system such as the smooth muscle. On the other hand it was recently found by Fatt and Katz (3) that miniature spontaneous potentials were generated at the motor end plate. It has been noticed by Wakabayashi that the tymbal m...

Tree fruit orchards in some Mid-Atlantic states are within the geographic range of 17-year periodical cicada Brood X, Magicicada septendecim (L.) and M. cassini (Fisher) (Hemiptera: Cicadidae), can be badly affected by injury from its oviposition branches. Several applications broad-spectrum insecticides, such as pyrethroids, needed to mitigate this injury, but incite secondary pest outbreaks i...

an an a d d d Bi Bi Bios o osta ta tati ti ist st stic ic ics, s s, U U Uni ni nive ve v rs rs rsit it ity y y of o C Ca alif for or orni ni nia, a a, S San an an F F Fra ra ranc nc ncis is isco c , , CA CA CA f Address for r r Co Co Corr rr rres es espo po pond nd n en en enc c ce: : Abstract Background—As the association between atrial fibrillation (AF) and race has only been

A new species of cicada, Semia gialaiensis, is described from Kon Ka Kinh National Park in central Vietnam. Photos of the adult, illustrations of the male genitalia, a distribution map and biological data are provided. A key to the species of Semia based on the male adults is also given.