Invalidation of Stobnica chromosome race of the common shrewSorex araneus

2008 ◽  
Vol 53 (4) ◽  
pp. 375-380 ◽  
Author(s):  
Stanisław Fedyk ◽  
Jan M. Wójcik ◽  
Włodzimierz Chętnicki ◽  
Sylwester MąCzewski
Keyword(s):  
Chromosome Race ◽  
The Common

A taxonomical re-evaluation of the Valais chromosome race of the common shrewSorex araneus (Insectivora: Soricidae)

2002 ◽  
Vol 47 (3) ◽  
pp. 245-275 ◽  
Author(s):  
Harald Brünner ◽  
Nicolas Lugon-Moulin ◽  
François Balloux ◽  
Luca Fumagalli ◽  
Jacques Hausser
Keyword(s):  
Chromosome Race ◽  
The Common

Assortative mating in the hybrid zones of the common shrew (Sorex araneus mammalia) chromosome race West Dvina

2013 ◽  
Vol 451 (1) ◽  
pp. 217-220 ◽  
Author(s):  
V. N. Orlov ◽  
Yu. M. Borisov ◽  
E. V. Cherepanova ◽  
A. N. Milishnikov
Keyword(s):  
Assortative Mating ◽  
Common Shrew ◽  
Sorex Araneus ◽  
Chromosome Race ◽  
Hybrid Zones ◽  
The Common ◽  
Common Shrew Sorex Araneus

Catalogue reduction techniques

1978 ◽  
Vol 48 ◽  
pp. 389-390 ◽  
Author(s):  
Chr. de Vegt
Keyword(s):  
Adjustment Process ◽  
Proper Motions ◽  
Measuring Process ◽  
Aerial Photogrammetry ◽  
Reduction Techniques ◽  
Observational Technique ◽  
The Common ◽  
Astrometric Data

AbstractReduction techniques as applied to astrometric data material tend to split up traditionally into at least two different classes according to the observational technique used, namely transit circle observations and photographic observations. Although it is not realized fully in practice at present, the application of a blockadjustment technique for all kind of catalogue reductions is suggested. The term blockadjustment shall denote in this context the common adjustment of the principal unknowns which are the positions, proper motions and certain reduction parameters modelling the systematic properties of the observational process. Especially for old epoch catalogue data we frequently meet the situation that no independent detailed information on the telescope properties and other instrumental parameters, describing for example the measuring process, is available from special calibration observations or measurements; therefore the adjustment process should be highly self-calibrating, that means: all necessary information has to be extracted from the catalogue data themselves. Successful applications of this concept have been made already in the field of aerial photogrammetry.

Renilla Bioluminescence: A Morphologic Approach to the Location of Photocytes

1974 ◽  
Vol 32 ◽  
pp. 208-209
Author(s):  
Ben O. Spurlock ◽  
Milton J. Cormier
Keyword(s):  
Excited State ◽  
Ground State ◽  
Molecular Basis ◽  
Light Emission ◽  
Chemical Basis ◽  
Electronic Excited State ◽  
Colonial Form ◽  
The Common ◽  
Eighteenth And Nineteenth Centuries ◽  
Catalyzed Oxidation

The phenomenon of bioluminescence has fascinated layman and scientist alike for many centuries. During the eighteenth and nineteenth centuries a number of observations were reported on the physiology of bioluminescence in Renilla, the common sea pansy. More recently biochemists have directed their attention to the molecular basis of luminosity in this colonial form. These studies have centered primarily on defining the chemical basis for bioluminescence and its control. It is now established that bioluminescence in Renilla arises due to the luciferase-catalyzed oxidation of luciferin. This results in the creation of a product (oxyluciferin) in an electronic excited state. The transition of oxyluciferin from its excited state to the ground state leads to light emission.

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