scholarly journals Accidental‐coincidence corrections: Comment on ‘‘Discrepancies in accidental‐coincidence corrections’’ [Rev. Sci. Instrum. 57, 3136 (1986)]

1989 ◽  
Vol 60 (1) ◽  
pp. 143-147 ◽  
Author(s):  
D. Smith ◽  
J. W. Müller
Keyword(s):  
Accidental Coincidence

Epoxidation and hydroxylation of Flav-3-enes, and synthesis of 2,3-trans-Flavan-3-ols

1974 ◽  
Vol 27 (4) ◽  
pp. 865 ◽  
Author(s):  
JW Clark-Lewis ◽  
EJ McGarry ◽  
AH Ilsley
Keyword(s):  
Chemical Shift ◽  
Oxygen Atom ◽  
Peracetic Acid ◽  
Accidental Coincidence ◽  
Virtual Coupling ◽  
Acetyl Group

Flav-3-ene epoxides cannot be prepared by the reaction of peracetic acid with a flavene, which leads mainly to the 2,3-trans-3,4-cis-4-acetoxyflavan-3-ols. The epoxides of flav-3-enes lacking electron releasing substituents in ring A may be prepared under weakly basic conditions, and on reduction give 2,3-trans-flavan-3-ols. Flavenes with electron-releasing substituents in conjugated positions in the A ring do not give epoxides under acidic or basic conditions, but the 2,3-trans-flavan-3-ols can be prepared by hydrogenolysis of the products obtained by interaction with peracetic acid. Mechanisms are proposed to account for the products obtained in the peroxidation reactions, and N.M.R. was used to establish the configurations of all the products. Migration of the acetyl group from the 4- to the 3-oxygen atom was observed in two cases, and the resultant 2,3-trans-3,4-cis-3-acetoxyflavan-4-ols showed virtual coupling of the 2- and 4-protons because of the accidental coincidence in chemical shift of the 2- and 3-protons. 2,3-cis-3,4-trans-3-Bromo-4,4'-dimethoxyflavan showed similar virtual coupling owing to near equivalence in the chemical shift of the 3- and the 4-protons.

St. Luke's Debt to St. Matthew

1939 ◽  
Vol 32 (4) ◽  
pp. 237-308 ◽  
Author(s):  
Christopher Butler
Keyword(s):  
Subject Matter ◽  
Direct Application ◽  
The Other ◽  
Accidental Coincidence ◽  
Other Hand ◽  
Internal Coherence ◽  
The One ◽  
Direct Inter ◽  
Literary Methods

The argument pursued in these pages is based, substantially, not on theories of Christian development to which it has been sought to bring the literary data into conformity, but on a direct application to those data of general principles of comparative documentary criticism. It may be worth while to state some of those principles in their generalized form:1. Where two or more documents correspond in contents, order and language beyond the degree that is necessitated by their subject or probably explicable by accidental coincidence, there is a presumption that, unless inter-dependent, they share (immediately or mediately) a common written or oral source.2. Where these correspondences or identities attain a certain degree of minuteness the balance is tilted against the hypothesis of merely oral connection.3. Unless external considerations urge, it is unscientific to conjecture hypothetical documents to explain correspondences for which a theory of direct inter-dependence is sufficient.4. In determining the direction of dependence (i.e. whether document A depends on document B, or vice versa) weight must be given to the internal coherence of subject-matter on the one hand, and to the employment of merely external links in combining material on the other hand. We may also be helped by a knowledge of the literary methods and the psychology of one or both authors, and especially by evidence of an author's deviation from his habitual style or vocabulary under the influence of a source.

Contamination in Manuscripts of the A-Text of Piers the Plowman

PMLA ◽  
1951 ◽  
Vol 66 (4) ◽  
pp. 495-504 ◽  
Author(s):  
D. C. Fowler
Keyword(s):  
Actual Practice ◽  
Perfect Reconstruction ◽  
Accidental Coincidence ◽  
Mere Possession ◽  
The Right ◽  
Sizable Number

Theoretically it is true that the application of the genealogical method to a sizable number of manuscripts descended from a single archetype would allow the almost perfect reconstruction of that archetype. Families, groups, and subgroups could be distinguished without hesitation, and readings could be determined with very little recourse to editorial ingenuity. Unfortunately such conditions are not to be found in actual practice. When the text critic has made a systematic record of all variants to be found in the MSS that he has collated, he must determine which of the great quantity of variational groups are genetic—that is, which groups actually reflect in their common readings the genealogy of their transmission. This operation requires the elimination of variational groups formed by the mere possession of the right reading, and random groupings formed by the accidental coincidence of readings.

The features of the EPR spectrum in the vicinity of accidental coincidence of interacting transitions

2003 ◽  
Vol 45 (1) ◽  
pp. 46-50 ◽  
Author(s):  
V. A. Vazhenin ◽  
V. B. Guseva ◽  
M. Yu. Artemov
Keyword(s):  
Epr Spectrum ◽  
Accidental Coincidence

scholarly journals Functional cortical spasm. Tor ticollis spasticus. Torticolis mental (Brisaud). Torticolis psychique ou polygonal (Grasset)

2020 ◽  
Vol VII (4) ◽  
pp. 174-197
Author(s):  
N. M. Popov
Keyword(s):  
Accidental Coincidence ◽  
Number Of Patients

Thanks to an accidental coincidence of circumstances, I have the opportunity to present to you today a number of patients obsessed with one of these nervous sufferings, which are still, in many respects, a mystery for the clinician. Pay attention first of all to this patient.

Selective averaging of EPR transitions of a high-spin center in the vicinity of their accidental coincidence

2002 ◽  
Vol 44 (6) ◽  
pp. 1145-1151 ◽  
Author(s):  
V. A. Vazhenin ◽  
V. B. Guseva ◽  
M. Yu. Artemov
Keyword(s):  
High Spin ◽  
Accidental Coincidence ◽  
Spin Center
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