F3/contactin (CNTN1) and TAG-1 (CNTN2) are closely related axonal glycoproteins that are differentially regulated during development. In the cerebellar cortex TAG-1 is expressed first as granule cell progenitors differentiate in the premigratory zone of the external germinal layer. However, as these cells begin radial migration, TAG-1 is replaced by F3/contactin. To address the significance of ...

OBJECTIVE Besides than in the control of developmental events, axonal adhesive glycoproteins may be also involved in functions requiring fine organization and connectivity of the nervous tissue. We previously demonstrated morphological alterations and functional cerebellar deficits in transgenic mice (TAG/F3 mice) ectopically expressing the F3/Contactin axonal glycoprotein under the control of ...

Let T be a 3-partite tournament. We say that a vertex v is −→ C3 -free if v does not lie on any directed triangle of T . Let F3(T ) be the set of the −→ C3 -free vertices in a 3-partite tournament and f3(T ) its cardinality. In this paper we prove that if T is a regular 3-partite tournament, then F3(T )must be contained in one of the partite sets of T . It is also shown that for every regular 3...

________________________________________________________________________________________________________ F2/F3 of voiced plosives and F1/F2 of vowel in VCV Sequences in Children with a Cleft Palate-An acoustic Study The aim of this acoustic study is to examine place of articulation during the production of voiced plosives by children with a cleft palate. The data are compared with those obtaine...

This paper investigates the first four formant frequencies of 60 normal Malaysian Indian young adults in sustained vowels using acoustical analysis. The F1, F2, F3 and F4 of Malaysian Indian males were reported at 359±87 Hz, 1457±630 Hz, 2799 ±336 Hz and 3777 ± 299 Hz respectively. The F1, F2, F3 and F4 of Malaysian Indian females were reported at 485±172 Hz, 1707±746 Hz, 3081±330 Hz and 4305±2...

We show that the recent claim that the 2+1 dimensional Ashtekar formulation for General Relativity has a finite number of physical degrees of freedom is not correct. PACS number(s): 04.20.Cv, 04.20.Fy In a recent paper [1] Manojlović and Miković claim that the number of degrees of freedom in Ashtekar’s formulation for 2+1 dimensional General Relativity is finite at variance with previous result...

An important aspect of speech perception is the ability to group or select formants using cues in the acoustic source characteristics--for example, fundamental frequency (F0) differences between formants promote their segregation. This study explored the role of more radical differences in source characteristics. Three-formant (F1+F2+F3) synthetic speech analogues were derived from natural sent...

Perception of speech sounds has been characterized as largely categorical, such that listeners experience a shift in perception from one sound to a different sound at a certain point on a continuum. Children with speech errors, however, have been found to have atypical category boundaries. Following an observation by Hagiwara [6], who noted that typical speakers show third formant (F3) values f...

The Stark components of the F3=2, I9=2 and I11=2 manifolds have been characterized using the ̄uorescence spectra for the F3=2 ® I9=2 and F3=2 ® I11=2 transitions of Nd3‡in YVO4 laser host. The thermal e€ects on the width and position of the popular laser line at 1061.7 nm (R1 ® Y1) of the inter-Stark transition within the F3=2 ® I11=2 intermanifold transition of Nd3‡:YVO4 have also been investi...