scholarly journals Current knowledge on the structural proteins of porcine reproductive and respiratory syndrome (PRRS) virus: comparison of the North American and European isolates

2000 ◽  
Vol 145 (4) ◽  
pp. 659-688 ◽  
Author(s):  
S. Dea ◽  
C. A. Gagnon ◽  
H. Mardassi ◽  
B. Pirzadeh ◽  
D. Rogan
Keyword(s):  
North American ◽  
Current Knowledge ◽  
Structural Proteins ◽  
Prrs Virus ◽  
The North

scholarly journals Tasserkidrilus cf. americanus (Clitellata, Naididae) – A new record from Slovakia confirms the dissimilarity between the European and North American populations

2021 ◽  
Vol 9 ◽  
Author(s):  
Igor Kokavec
Keyword(s):  
North American ◽  
New Record ◽  
Current Knowledge ◽  
European Population ◽  
Separate Species ◽  
The North ◽  
Standing Waters ◽  
Relationship Of ◽  
European Form ◽  
American Form

The main objective of this study is to present a new record of Tasserkidrilus cf. americanus found in a channel near the Tešmak swamp in Slovakia (Central Europe) and to compare its morphological features and habitat requirements with those of populations occurring in North America and Europe. The new specimens are similar to those found in The Netherlands and Belgium, but dissimilar to previously reported North American material of T. americanus, reopening the question of whether the European form is a separate species. The European form has the penis sheaths approximately twice as long as and wider than the North American form and may inhabit slow-flowing or standing waters of a eutrophic character, which is in conflict with the current knowledge on the morphology and ecology of North American populations. Further investigation is necessary to solve the questions about the origin and taxonomic relationship of the European population to other populations.

scholarly journals Trail Trees: Living Artifacts (Vivifacts) of Eastern North America

2015 ◽  
Vol 6 (1) ◽  
pp. 183-188 ◽  
Author(s):  
Nicholas C. Kawa ◽  
Bradley Painter ◽  
Cailín E. Murray
Keyword(s):  
North America ◽  
North American ◽  
Current Knowledge ◽  
Indigenous Populations ◽  
Eastern North America ◽  
Human Populations ◽  
The North ◽  
Public Recognition ◽  
Culturally Modified Trees ◽  
Management Plans

Living trees historically modified by human populations, oftentimes referred to as “culturally modified trees” (CMTs), are found throughout the North American landscape. In eastern North America specifically, indigenous populations bent thousands of trees to mark trails, and some of these still exist in the region today. In this article, we present a synthesis of current knowledge on trail trees, including their speculated functions, formation, and selection. We also examine the theoretical implications of these living artifacts (or vivifacts) and how they may open new avenues for investigation by archaeologists, environmental historians, and ethnobiologists. To conclude, we make a call for expanded public recognition and documentation of trail trees, discussing the need for their incorporation into forest and park management plans.

"TRACHOMA AMONG THE NORTH AMERICAN INDIANS"

JAMA ◽  
1926 ◽  
Vol 86 (13) ◽  
pp. 970
Author(s):  
L. Webster Fox
Keyword(s):  
American Indians ◽  
North American ◽  
North American Indians ◽  
The North

1588: The Bicalutamide Early Prostate Cancer Program: Findings of the North American Trial at 7.7 Years' Median Follow-Up

2006 ◽  
Vol 175 (4S) ◽  
pp. 511-512
Author(s):  
David G. McLeod ◽  
Ira Klimberg ◽  
Donald Gleason ◽  
Gerald Chodak ◽  
Thomas Morris ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
North American ◽  
Early Prostate Cancer ◽  
The North ◽  
Cancer Program

Endoscopic Skull Base Surgery Practice Patterns: Survey of the North American Skull Base Society

2013 ◽  
Vol 74 (S 01) ◽  
Author(s):  
Pete Batra ◽  
Jivianne Lee ◽  
Samuel Barnett ◽  
Brent Senior ◽  
Michael Setzen ◽  
...  
Keyword(s):  
Skull Base ◽  
North American ◽  
Practice Patterns ◽  
Skull Base Surgery ◽  
Endoscopic Skull Base Surgery ◽  
The North
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