A comparative ultrastructural analysis of the third cerebral ventricle of the North American mink (Mustela vison)

1973 ◽  
Vol 175 (2) ◽  
pp. 155-168 ◽  
Author(s):  
David E. Scott ◽  
Gerald P. Kozlowski ◽  
Gerda Krobisch Dudley
Keyword(s):  
North American ◽  
American Mink ◽  
Mustela Vison ◽  
Ultrastructural Analysis ◽  
Cerebral Ventricle ◽  
The Third ◽  
The North

Skeleton of Extinct North American Sea Mink (Mustela macrodon)

2000 ◽  
Vol 53 (2) ◽  
pp. 247-262 ◽  
Author(s):  
Jim I. Mead ◽  
Arthur E. Spiess ◽  
Kristin D. Sobolik
Keyword(s):  
Native American ◽  
North America ◽  
North American ◽  
Gulf Of Maine ◽  
American Mink ◽  
Shell Middens ◽  
Northeastern North America ◽  
The North ◽  
Coastal Island ◽  
Alexander Archipelago

AbstractMustela macrodon (extinct sea mink) is known only from prehistoric and historic Native American shell middens dating less than 5100 years old along coastal islands of the Gulf of Maine, northeastern North America. The species is distinct from all known extant subspecies of M. vison (American mink) but still belongs to the North American subgenus Vison. Metric comparisons between M. macrodon and five subspecies of M. vison, using skull, mandible, humerus, radius, femur, and tibia skeletal elements, show that M. macrodon is larger in overall size and robustness and is proportionately larger in the dental region. Many habitat-related parallels exist between coastal island mink of the Gulf of Maine and those of the Alexander Archipelago, southeastern Alaska, where the overall largest living subspecies of mink is found (M. v. nesolestes).

NASPEM Abstracts

1989 ◽  
Vol 1 (2) ◽  
pp. 171-184
Keyword(s):  
North American ◽  
Washington Dc ◽  
North American Society ◽  
International Conference ◽  
The Third ◽  
The North ◽  
Exercise Medicine ◽  
American Society ◽  
Annual International Conference

These abstracts are from oral sessions presented at the Third Annual International Conference of the North American Society of Pediatric Exercise Medicine held in Washington, DC, Sept. 15–18, 1988.

A Subversive Agent From Colombia

Worldview ◽  
1974 ◽  
Vol 17 (6) ◽  
pp. 29-34
Author(s):  
Denis Goulet
Keyword(s):  
United States ◽  
North American ◽  
Third World ◽  
The United States ◽  
Social Policies ◽  
The Third ◽  
The North ◽  
American Heritage ◽  
The Third World

In a letter to a friend in the United States dated May 16, 1969, a leading Colombian sociologist declared:I have been trying to disattach myself from portions of the North American heritage which I had received, and with which I find myself increasingly at odds. For this reason, I cannot identify myself with any institution of the United States that would uphold or sustain the present economic and social policies pursued toward the Nations of the Third World.

Interconnection of boxed angle compression members

1987 ◽  
Vol 14 (4) ◽  
pp. 534-541 ◽  
Author(s):  
Murray C. Temple ◽  
David C. McCloskey ◽  
Joseph M. Calabrese
Keyword(s):  
North American ◽  
Structural Design ◽  
Failure Load ◽  
Slenderness Ratio ◽  
The Third ◽  
The North ◽  
Result Concern ◽  
Ratio Size ◽  
Compression Members ◽  
European Standards

Recent research on the interconnection of starred angle compression members has indicated that the requirements for the interconnection of such members as contained in North American standards are not adequate. It was also determined that the North American and European standards vary greatly in their requirements for the interconnection of double angles. As a result, concern was expressed with regard to the requirements for the interconnection of boxed angles.A total of 27 boxed angle compression members were tested. The slenderness ratio, size of angles, and number of interconnectors were varied. The failure load and failure mode were noted for each specimen.This paper recommends that two interconnectors be used, one at each of the third points, in all boxed angle compression members. Key words: angles, buckling, building (codes), columns (structural), design interconnection, boxed angle.

A re-examination of the type area of the Devono-Mississippian Cariboo Orogeny, central British Columbia

1981 ◽  
Vol 18 (12) ◽  
pp. 1767-1775 ◽  
Author(s):  
L. C. Struik
Keyword(s):  
British Columbia ◽  
North American ◽  
Volcanic Rocks ◽  
The Other ◽  
Type Locality ◽  
The Third ◽  
The North ◽  
Early Mesozoic ◽  
Type Area ◽  
North American Craton

Three tectonostratigraphic successions are established from remapping of the area near Barkerville and Cariboo River. The first, of Late Proterozoic to Cambrian sediments, was deposited on the shallow to moderately deep platformal shelf west of and derived from the exposed North American craton. The second is an unconformably overlying Ordovician to Permian sequence of sedimentary and volcanic rocks representing a basinal environment with periodic highs. These packages of sediments were deposited on the North American craton and its western transitional extensions. The third succession, composed of oceanic chert and basalt of the Permo-Pennsylvanian Antler Formation, was thrust eastward over the other two during the early Mesozoic. The three successions were folded, faulted, and metamorphosed during the mid-Mesozoic Columbian Orogeny. The Devono-Mississippian Cariboo Orogeny, which was thought to have affected all of the first sequence and part of the second, could not be documented in its type locality. The geology of the Barkerville – Cariboo River area has many similarities with that of Selwyn Basin and Cassiar platform of northern British Columbia and Yukon.

Locomotion in the North American mink, a semi-aquatic mammal. I. Swimming energetics and body drag

1983 ◽  
Vol 103 (1) ◽  
pp. 155-168 ◽  
Author(s):  
T. M. Williams
Keyword(s):  
North American ◽  
American Mink ◽  
Aquatic Mammal ◽  
Shape Characteristic ◽  
The North ◽  
Aquatic Locomotion ◽  
High Speeds ◽  
Body Drag ◽  
Terrestrial Environments ◽  
Total Body

Oxygen consumption (VO2) during surface swimming and total body drag were investigated in the North American mink, Mustela vision Schreber. Over the range of 0.13-0.70 ms-1, VO2 increased curvilinearly with speed for minks swimming against a current in a water flume. Similarly, body drag of a mink carcass increased non-linearly with speed and was described by the equation, Drag = 1.24 velocity. A streamlined body shape, characteristic of many mustelids, aided in reducing drag at high speeds. Net swimming efficiencies were comparatively low (less than 2.8%) and were attributed to hig levels of drag when on the water surface and the absence of appendage specialization for aquatic locomotion. This lack of specialization probably contributes to high energetic costs but enables the mink to forage in both the aquatic and terrestrial environments.

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