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1	Transition and development from lower secondary to upper secondary school
	Frahm, Sarah; Goy, Martin; Kowalski, Kerstin...
	In: Education as a lifelong process : the German National Educational Panel Study (NEPS) (2011), S. 217-232
	Leibniz-Zentrum Allgemeine Sprachwissenschaft
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2	Sounds, Behaviour, and Auditory Receptors of the Armoured Ground Cricket, Acanthoplus longipes
	Kowalski, Kerstin; Lakes-Harlan, Reinhard. - : University of Wisconsin Library, 2010
	Abstract: The auditory sensory system of the taxon Hetrodinae has not been studied previously. Males of the African armoured ground cricket, Acanthoplus longipes (Orthoptera: Tettigoniidae: Hetrodinae) produce a calling song that lasts for minutes and consists of verses with two pulses. About three impulses are in the first pulse and about five impulses are in the second pulse. In contrast, the disturbance stridulation consists of verses with about 14 impulses that are not separated in pulses. Furthermore, the inter-impulse intervals of both types of sounds are different, whereas verses have similar durations. This indicates that the neuronal networks for sound generation are not identical. The frequency spectrum peaks at about 15 kHz in both types of sounds, whereas the hearing threshold has the greatest sensitivity between 4 and 10 kHz. The auditory afferents project into the prothoracic ganglion. The foreleg contains about 27 sensory neurons in the crista acustica; the midleg has 18 sensory neurons, and the hindleg has 14. The auditory system is similar to those of other Tettigoniidae.
	Keyword: Article
	URL: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3014796 https://doi.org/10.1673/031.010.5901 http://www.ncbi.nlm.nih.gov/pubmed/20569136
	BASE
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