scholarly journals NOTES AND DESCRIPTIONS OF NORTH AMERICAN XYLOPHAGIDÆ AND STRATIOMYIDÆ

1885 ◽  
Vol 17 (7) ◽  
pp. 121-128 ◽  
Author(s):  
S. W. Williston
Keyword(s):  
Linear Space ◽  
North American ◽  
Outer Part

Xylophagus decorus, n. sp.♀. Length 13 mm. Black, legs yellow. Front convex, but little shining, thinly brownish dusted. Antennæ black, the tip of first joint and the second more reddish brown; elongate, the first joint rather longer than the distance from the insertion to the ocelli. Proboscis black Dorsum of thorax shining on the sides, in the middle with two broad brownish pollinose stripes, separated by a shining linear space. Pleuræ shining black. Abdomen blackish brown, shining. Legs, including the coxæ, reddish yellow, the tips of all the tarsi black. Wings nearly hyaline, a broad brownish band, near the middle, narrowed and evanescent posteriorly, the outer cross-veins clouded and the outer part of the wing cinereous.One specimen, Washington Territory (H. K. Morrison). The abdomen probably varies in depth of color.

scholarly journals Dresbachian trilobites and stratigraphy of the Cass Fjord Formation, western North Greenland

1981 ◽  
Vol 141 ◽  
pp. 1-46
Author(s):  
A.R Palmer ◽  
J.S Peel
Keyword(s):  
New Taxa ◽  
North American ◽  
Outer Part ◽  
Appalachian Region ◽  
Middle Cambrian ◽  
Early Ordovician ◽  
North Greenland

Twenty-five species of trilobites are described, some in open nomenclature. They represent four faunules of Dresbachian age and one faunule of possibie pre-Dresbachian age from the lower 150 m of the Cass Fjord Formation in Daugaard-Jensen Land, western North Greenland. The Cass Fjord Formation ranges in age from Middle Cambrian-Early Ordovician, although until recently it was widely assumed to be entirely of Ordovician age. All the trilobites are typical North American endemic forms. New taxa include: Bonneterrina greenlandica n. sp., Prolonchocephalus spinosus n. gen. n. sp., Kingstonia peltate n.sp., and Terranovella arcuata n. sp. Biogeographic affinities of the older faunules are with faunas of the inner part of the carbonate belt of the Cordilleran region, while the younger faunules have affinities with faunas from the outer(?) part of the carbonate belt in the northern Appalachian region. Evidence of extension of the Dresbachian-Franconian cratonic unconformity to western North Greenland is presented and the problem of repetition of trilobites in the crisis fauna at the base of the Pterocephaliid biomere is discussed.

DESCRIPTIONS OF NEW SPECIES OF NORTH AMERICAN BUTTERFLIES

1883 ◽  
Vol 15 (11) ◽  
pp. 209-211 ◽  
Author(s):  
W. H. Edwards
Keyword(s):  
New Species ◽  
North American ◽  
Outer Part ◽  
Double Line ◽  
Brown Patch

Argynnis Lais.Male.—Expands 2 inches.Upper side uniform bright red fulvous, slightly brown about bases of wings; the black markings all delicate; both wings bordered by a double line.Under side of primaries pale cinnamon-red, buff in upper outer part of cell and from costa to first median nervule; a brown patch at apex and another before apex, on which are two silver spots; the upper submarginal spots silvered. Secondaries have the area from base to outside second row of spots yellow, mottled with dark brown; the belt beyond same spots clear yellow, the margin dark brown; all the spots well silvered, rather small, those of the discal and second rows slightly edged on upper side by black.

NEW NORTH AMERICAN MICROLEPIDOPTERA

1892 ◽  
Vol 24 (5) ◽  
pp. 121-123
Author(s):  
C. H. Fernald
Keyword(s):  
North American ◽  
Outer Part ◽  
Basal Half

Teras comandrana, n sp.Expanse of wings 13 mm. Head, palpi thorax, and basal half of forewings, light yellowish-brown or fawn coloured. A large cinnamonbrown tringular spot rests on the costa, extending from the middle to the outer fourth, and the apex extends nearly half way across the wing. The outer part of the wing is light cinnamon-brown, and the whole surface is crossed by numerous oblique, irregular metallic band, which are visible only in an oblique light. A row of minute black tufts alon ghe inner side of the costal spot, two or three more near the fold below, one on each side of the fold at the basal third of the wing, and three near the middle of the wing at the outer fourth. Fringe concolorous with the outer part of the wing.

Structure of clathrin cages and coats in ice

1986 ◽  
Vol 44 ◽  
pp. 94-97
Author(s):  
G.P.A. Vigers ◽  
R.A. Crowther ◽  
B.M.F. Pearse
Keyword(s):  
Electron Microscopy ◽  
Heavy Chain ◽  
Outer Part ◽  
Coated Vesicles ◽  
Eukaryotic Cells ◽  
Coat Proteins ◽  
Terminal Domain ◽  
Clathrin Heavy Chain ◽  
Membrane Components

Clathrin forms the polyhedral cage of coated vesicles, which mediate the transfer of selected membrane components within eukaryotic cells. Clathrin cages and coated vesicles have been extensively studied by electron microscopy of negatively stained preparations and shadowed specimens. From these studies the gross morphology of the outer part of the polyhedral coat has been established and some features of the packing of clathrin trimers into the coat have also been described. However these previous studies have not revealed any internal details about the position of the terminal domain of the clathrin heavy chain, the location of the 100kd-50kd accessory coat proteins or the interactions of the coat with the enclosed membrane.

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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