A Typology of Oil-Stimulated Population Movements in Scotland: Implications for the Future

1979 ◽  
Vol 50 (1) ◽  
pp. 94 ◽  
Author(s):  
Stace Birks ◽  
John Sewel
2020 ◽  
Vol 6 (2) ◽  
pp. 1-16
Author(s):  
David Soria Molina

The Trajanic Dacian Wars (101-106 AD) implied multiple expansionist population movements by all contestants, that affected the development and result of the conflict, conditioning many of the implied powers’ decisions. In the same way, the intensity and scale of a conflagration that spreaded throughout Danubian and Pontic Europe, finished with heavy population losses as a direct and indirect consequence of armed clashes. Finally, the consolidation of Roman power in Dacia after its conquest and its particularities supposed the deportation and intentional displacement of native population groups, migrations to zones free from Roman occupation and other sociopolitical and demographical problems solved by the Roman Empire through a planned colonization and the varied diplomatic agreements signed on 119 AD. In this essay we are going to deal, through literary, epigraphic, numismatic, archaeological and iconographical fonts, with this demographical processes, the actualities derived from them and its consequences in the framework of Trajan’s Dacian Wars, processes that conditioned the region’s geopolitics and, therefore, the future composition of Eastern Europe.


1961 ◽  
Vol 13 ◽  
pp. 29-41
Author(s):  
Wm. Markowitz
Keyword(s):  

A symposium on the future of the International Latitude Service (I. L. S.) is to be held in Helsinki in July 1960. My report for the symposium consists of two parts. Part I, denoded (Mk I) was published [1] earlier in 1960 under the title “Latitude and Longitude, and the Secular Motion of the Pole”. Part II is the present paper, denoded (Mk II).


1978 ◽  
Vol 48 ◽  
pp. 387-388
Author(s):  
A. R. Klemola
Keyword(s):  

Second-epoch photographs have now been obtained for nearly 850 of the 1246 fields of the proper motion program with centers at declination -20° and northwards. For the sky at 0° and northward only 130 fields remain to be taken in the next year or two. The 270 southern fields with centers at -5° to -20° remain for the future.


Author(s):  
Godfrey C. Hoskins ◽  
Betty B. Hoskins

Metaphase chromosomes from human and mouse cells in vitro are isolated by micrurgy, fixed, and placed on grids for electron microscopy. Interpretations of electron micrographs by current methods indicate the following structural features.Chromosomal spindle fibrils about 200Å thick form fascicles about 600Å thick, wrapped by dense spiraling fibrils (DSF) less than 100Å thick as they near the kinomere. Such a fascicle joins the future daughter kinomere of each metaphase chromatid with those of adjacent non-homologous chromatids to either side. Thus, four fascicles (SF, 1-4) attach to each metaphase kinomere (K). It is thought that fascicles extend from the kinomere poleward, fray out to let chromosomal fibrils act as traction fibrils against polar fibrils, then regroup to join the adjacent kinomere.


Author(s):  
Nicholas J Severs

In his pioneering demonstration of the potential of freeze-etching in biological systems, Russell Steere assessed the future promise and limitations of the technique with remarkable foresight. Item 2 in his list of inherent difficulties as they then stood stated “The chemical nature of the objects seen in the replica cannot be determined”. This defined a major goal for practitioners of freeze-fracture which, for more than a decade, seemed unattainable. It was not until the introduction of the label-fracture-etch technique in the early 1970s that the mould was broken, and not until the following decade that the full scope of modern freeze-fracture cytochemistry took shape. The culmination of these developments in the 1990s now equips the researcher with a set of effective techniques for routine application in cell and membrane biology.Freeze-fracture cytochemical techniques are all designed to provide information on the chemical nature of structural components revealed by freeze-fracture, but differ in how this is achieved, in precisely what type of information is obtained, and in which types of specimen can be studied.


Sign in / Sign up

Export Citation Format

Share Document