Cytogenetic Studies in North American Minnows (Cyprinidae). XX. Chromosomal NOR Variation in the Genus Luxilus

Copeia ◽  
1992 ◽  
Vol 1992 (2) ◽  
pp. 332 ◽  
Author(s):  
Patricia K. Powers ◽  
John R. Gold
Keyword(s):  
North American ◽  
Cytogenetic Studies

scholarly journals Cytogenetic studies in North American minnows(Cyprinidae). VII. Karyotypes of 13 species from the southern united states.

CYTOLOGIA ◽  
1981 ◽  
Vol 46 (1/2) ◽  
pp. 105-115 ◽  
Author(s):  
J. R. Gold ◽  
W. D. Womac ◽  
F. H. Deal ◽  
J. A. Barlow, Jr.
Keyword(s):  
United States ◽  
North American ◽  
Southern United States ◽  
Cytogenetic Studies

scholarly journals CYTOGENETIC STUDIES IN NORTH AMERICAN MINNOWS (CYPRINIDAE). IV. SOMATIC POLYPLOIDY IN GILA BICOLOR

1977 ◽  
Vol 19 (4) ◽  
pp. 657-662 ◽  
Author(s):  
John C. Avise ◽  
John R. Gold
Keyword(s):  
North American ◽  
Kidney Tissue ◽  
Single Individual ◽  
Somatic Polyploidy ◽  
Polyploid Cells ◽  
Cytogenetic Studies ◽  
Cytological Mechanism ◽  
In Cells

The kidney tissue of a single individual of the California minnow Gila bicolor (Girard) contained polyploid cells in about 1.7% frequency. Chromosome spreads of triploid, tetraploid, hexaploid, octaploid, and dodecaploid cells were observed and may have arisen through endoreduplication of ancestral diploid and triploid cells. The cytological mechanism producing the triploid cells is unknown. Diplochromosomes were not present. The distribution of ploidy in cells of this individual is not random. In particular, cells having undergone one round of chromosomal increase appear increasingly susceptible to additional rounds of chromosomal gain.

scholarly journals Cytogenetic studies in North American minnows(Cyprinidae). XVIII. Chromosomal NOR variation among eight species.

CYTOLOGIA ◽  
1990 ◽  
Vol 55 (3) ◽  
pp. 483-492 ◽  
Author(s):  
J. R. Gold ◽  
J. D. Jenkin ◽  
P. K. Powers
Keyword(s):  
North American ◽  
Cytogenetic Studies

scholarly journals Cytogenetic studies in North American minnows (Cyprinidae). VI. Karyotypes of thirteen species in the genus Notropis.

CYTOLOGIA ◽  
1979 ◽  
Vol 44 (2) ◽  
pp. 457-466 ◽  
Author(s):  
J. R. Gold ◽  
C. W. Whitlock ◽  
W. J. Karel ◽  
J. A. Barlow
Keyword(s):  
North American ◽  
Cytogenetic Studies

Adaptation of the Connected Speech Test: Rerecording and Passage Equivalency

2020 ◽  
Vol 29 (2) ◽  
pp. 259-264 ◽  
Author(s):  
Hasan K. Saleh ◽  
Paula Folkeard ◽  
Ewan Macpherson ◽  
Susan Scollie
Keyword(s):  
Speech Perception ◽  
North American ◽  
First Language ◽  
Intraclass Correlation ◽  
Normal Hearing ◽  
Connected Speech ◽  
Internal Reliability ◽  
Speech Test ◽  
The Mean ◽  
Unit Standard

Purpose The original Connected Speech Test (CST; Cox et al., 1987) is a well-regarded and often utilized speech perception test. The aim of this study was to develop a new version of the CST using a neutral North American accent and to assess the use of this updated CST on participants with normal hearing. Method A female English speaker was recruited to read the original CST passages, which were recorded as the new CST stimuli. A study was designed to assess the newly recorded CST passages' equivalence and conduct normalization. The study included 19 Western University students (11 females and eight males) with normal hearing and with English as a first language. Results Raw scores for the 48 tested passages were converted to rationalized arcsine units, and average passage scores more than 1 rationalized arcsine unit standard deviation from the mean were excluded. The internal reliability of the 32 remaining passages was assessed, and the two-way random effects intraclass correlation was .944. Conclusion The aim of our study was to create new CST stimuli with a more general North American accent in order to minimize accent effects on the speech perception scores. The study resulted in 32 passages of equivalent difficulty for listeners with normal hearing.

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