scholarly journals Conductive Structures in the North-western United States and South-west Canada

1971 ◽  
Vol 23 (4) ◽  
pp. 387-398 ◽  
Author(s):  
H. Porath ◽  
D. I. Gough ◽  
P. A. Camfield
1999 ◽  
Vol 26 (14) ◽  
pp. 2171-2174 ◽  
Author(s):  
Terje K. Berntsen ◽  
Sigrún Karlsdóttir ◽  
Daniel A. Jaffe

Mycologia ◽  
1925 ◽  
Vol 17 (6) ◽  
pp. 225 ◽  
Author(s):  
James Robert Weir

Parasitology ◽  
1927 ◽  
Vol 19 (1) ◽  
pp. 61-83 ◽  
Author(s):  
Harry M. Miller

1. Six new furcocercous cercariae from the north-western United States are described and comparisons with similar forms are made.2. On the basis of the structure ofCercaria tuckerensisspec. nov. and three cercariae reported in the recent literature it is possible to characterise more precisely the Elvae group, which now contains eight members.3. The execretory system ofCercaria elvaeMiller, 1923, was re-studied and found to differ from the original description. The bearing of this sort of error on Faust's use of excretory system formulae is touched upon.4.Cercaria burtiMiller, 1923, originally described from northern Michigan, is reported from San Juan Island.5. Certain features of the morphology and biology of the furcocercous cercariae are discussed in the light of this and other recent studies.6. Check List II of the furcocercous cercariae, with eighteen larvae, is given.


2006 ◽  
Vol 57 (8) ◽  
pp. 837 ◽  
Author(s):  
Gavin Gouws ◽  
Barbara A. Stewart ◽  
Savel R. Daniels

Although phylogeographic patterns of freshwater decapods elsewhere in Australia are well documented, little is known of the phylogeography and biogeography of the endemic freshwater fauna of south-western Australia. Here, the phylogeographic structure of a freshwater crayfish, Cherax preissii Erichson, 1846, was investigated to determine contemporary and historical patterns of gene flow and to examined evolutionary and biogeographical scenarios. Allozyme and cytochrome c oxidase subunit I mitochondrial DNA data were collected from 15 populations, sampled across the known C. preissii distribution. Both markers revealed a clear distinction and separation among populations occurring in the north-western and southern portions of the distribution. Inferences of allopatric fragmentation and molecular dating attributed the divergence of the aquatic fauna of these regions to periods of Pliocene–Pleistocene aridity. Connectivity appeared to be greater within each of these regions. Evidence suggested contemporary, but not ongoing, gene flow, particularly within the southern region. This was possibly facilitated by dispersal during pluvial Pleistocene periods or drainage connectivity during episodic marine regressions. The divergence and distributions of these lineages parallels patterns seen in other freshwater crayfish of the region. More explicit investigation of these and further fine-scale phylogeographic studies may contribute to the understanding of biogeography and evolution in the south-west, and may further refine currently recognised biogeographical regions.


Urban History ◽  
2016 ◽  
Vol 43 (2) ◽  
pp. 306-335
Author(s):  
JELLE HAEMERS ◽  
GERRIT VERHOEVEN ◽  
JEROEN PUTTEVILS ◽  
PETER JONES

One of the key concepts of Max Weber's writings on cities was that in north-western Europe, the landed nobility and urban elites were clearly distinguished. For Weber, this was indeed a main reason to locate the occidental city in the north rather than in the Mediterranean. Christof Rolker tackles this question in his ‘Heraldische Orgien und Sozialer Aufstieg. Oder: Wo ist eigentlich “oben” in der spätmittelalterlichen Stadt?’, Zeitschrift für Historische Forschung, 52 (2015), 191–224. The in-depth analysis of one of the largest and at the same time most widespread armorials in the late medieval Holy Empire, namely that of Konrad Grünenberg (d. 1494), demonstrates that in Konstanz (where Grünenberg lived) guilds (and not the nobility) first insisted on patrilineal descent as a proof of status. Traditionally, Grünenberg is seen as a paradigmatic social climber, as he left his guild to join the society of the local nobility (called ‘Zur Katz’). Yet his sumptuous armorial, containing over 2,000 coat of arms mainly from the south-west of the Empire, does not mention any single member of this noble society. Instead, it praises the tournament societies of which Grünenberg was not a member, and highlights chivalric events in which he never participated. This, Rolker argues, indicates that armorials were not only about status already gained or to be gained, but also a manual for contemporaries to discuss the social order in a more abstract way. In his ‘Wappenbuch’, Grünenberg constantly explains why he could not join the noble societies he praised, while at the same time he ignored the ‘Zur Katz’ association of which he was a member. Therefore, Rolker concludes that it was not only members (or would-be members) of the respective social groups who knew and reproduced social codes. So the boundary between noble and urban elites was more blurred than Weber claimed – though Rolker is of course not the first to criticize Weber on this. Clearly, Grünenberg's armorial was part and parcel of a wider discussion of origins and kinship, namely patrilineal kinship that took place in several social milieux, rather than simply a book which displayed inherited status.


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